NEHS1111: 368-9910 Multi-Tool Group 3 {0599, 0701, 0702, 0706, 1000, 7610, 7620} Caterpillar

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Introduction

This manual contains safety information, operation instructions, and maintenance information and should be stored with the tool group.

The information, specifications, and illustrations in this publication are based on information that was available at the time that the publication was written. The specifications, torques, pressures, measurements, adjustments, illustrations, and other items can change at any time. These changes can affect the service that is given to the product. Obtain the complete and most current information before you start any job.

Some photographs or illustrations in this publication may show details that can be different from your service tool due to updates. Guards and covers might have been removed for illustrative purposes.

Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The warnings in this publication and on the product, are therefore, not all inclusive. If a tool, procedure, work method, or operating technique that is not recommended by Caterpillar is used, the operator is responsible for ensuring that the procedures used are safe. The operator must also be sure that the product will not be damaged or made unsafe by any unspecified procedures.

Illustration 1	g06358530

Do not operate or perform any lubrication, maintenance, or repair on this product until you have read and understand the operation lubrication, maintenance, and repair information.

When replacement parts are required for this product, Caterpillarrecommends using Catreplacement parts or parts with equivalent specifications including, but not limited to physical dimensions, type, strength, and material.

Whenever a question arises regarding your service tool or this publication, contact the Global Dealer Solutions Network hotline at:

USA: 1-877-228-2420

International: 1-309-578-7372

Safety Information

Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. The operator should also have the necessary training, skills, and tools to perform these functions properly.

Safety precautions and warnings are provided in this manual and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons

Illustration 2	g06350515

Improper operation, lubrication, maintenance, or repair of this product can be dangerous and could result in injury or death.

Safety Signal Words

The following safety signal words can be found throughout this publication. Review the image below to understand the severity of bodily harm that can occur during certain operational steps. Refer to "ANSI Z535.1-2002 - American National Standard For Safety Color Code" and "ANSI Z535.6-2011- American National Standard - Product Safety Information in Product Manuals, Instructions, and Other Collateral Materials"for more information.

Illustration 3	g06358515

Mandatory Action and Personal Protection Identification

The personal protective equipment symbols shown in this section are all not used with this tool. Read and understand the manual fully to know which personal protective equipment should be used during tool operation. Always use the appropriate personal protective equipment when operating the tool.

Illustration 4	g06346292

Product Safety Information

General Safety Hazards

• Read and understand this and all other manuals before installing, operating, repairing, maintaining, or working near the machine.

• Only trained operators should install, adjust, or use this tool. Do not allow unauthorized personnel to operate tool.

• It is your responsibility to make this information available to others that will operate this product.

• The warnings given in this manual are for identified hazards that are foreseeable in the general use of this tool.

• Never use a tool that has been damaged or is malfunctioning.

• Do not modify the tool, safety devices, and accessories. Doing so will increase hazards to the operator and others.

• Perform preventative maintenance on the tool regularly. Keep tool clean of fluids, grease, dust, and debris found around the workspace.

• Do not wear loose clothing or jewelry that can snag on controls or on other parts of the equipment.

Electrocution Hazard

• Keep all liquids away from the Multi-Tool.

• Leave all electrical components intact. Modifications can cause operator to be shocked, tool to malfunction, or short circuit.

General Description

Illustration 5	g03343158

Illustration 6	g03342890
368-9910 Multi-Tool Group

The 368-9910 Multi-Tool Group provides several diagnostic tools in one handheld unit.

The Multi-Tool Group consists of a CAT Multi-Tool, a diagnostic interface module (DIM), various power adapters and cords, carrying case, and manual.

The Multi-Tool (1) is a handheld tool that contains a software operating system and diagnostic programs (applications). The diagnostic applications are accessed by using the Multi-Tool menu-driven display and the keys on the front of the tool.

The DIM (2) connects to the back of the Multi-Tool and is used to connect test tools (cables and sensors). The DIM is the interface between the test tools and the internal software applications of the Multi-Tool.

The power adapters and cords supply power to the tool by various methods, such as a rechargeable internal battery pack, DC power from the battery of the equipment or vehicle, or AC power from an outlet. Four AC power cords are included for international use.

Illustration 7	g03343176
(1) Application Manager Screen

When the Multi-Tool is turned on, the main screen is the Application Manager screen. This is a menu screen that lists the programs (applications) available in the Multi-Tool. This screen is used to select and start each application.

The applications include the following:

• Blowby/Airflow Indicator

• Engine Timing Indicator

• Signal Generator

• Electronic Position Indicator

• MultiTach II

• Digital Thermometer

• Fuel Flow

• Pressure Meter

• Burn Rate Meter

• System Setup

Multi-Tool Description

Illustration 8	g03349645

LCD Screen (1): Displays menu and data screens.

ENTER Keys (2): Executes a selected menu option or function.

Direction Keys (3): Up or Down key selects a menu option, a data field, or scrolls through data or text. Left or right key changes the data entry in a field or scrolls through screens.

EXIT Keys (4): Exits a screen or function.

POWER Button (5): Turns the tool ON and OFF. The tool turns off automatically after a set time.

POWER Indicator Light (6): Illuminated when the tool is ON.

Variable Function Keys (7): Four keys (F1), (F2), (F3), and (F4) correspond with on-screen function keys. Each key executes a command or displays a menu of commands.

HELP Key (8): Displays helpful information about the screen that is currently displayed.

Illustration 9	g03349658

Software License Card Port (9): Inserting a software license card activates a specific tool software application.

Note: Software License Cards are not required for 368-9910 Multi-Tool Phase 3 or Multi-Tools upgraded using 386-5908 Compact Flash Memory.

External Compact Flash Card Port (10): Used for software updates.

RS 232 Serial Port (11): Not currently enabled.

Infrared Communications Window (12): Not currently enabled.

Universal Serial Bus (USB) Port (13): Connection for an external, portable USB drive, or other peripheral device, such as a printer.

Internal Memory Flash Card Port (14): Provides memory and programming to operate the tool.

Illustration 10	g06358521
Do not remove the internal memory flash card while the tool is turned ON. Damage to the tool and/or memory card can result. External Power Port (15): Connection port for the AC/DC power adapter.

Illustration 11	g06358530
When supplying DC power to the tool, use only 285-0904 Battery DC Power Cable Assembly provided. Attempting to use other cables can result in damage.

Illustration 12	g03349683

Diagnostic Interface Module (DIM) Port Door, shown open (16): Opens to provide access to the DIM Port.

DIM Port (17): The DIM connects through this interface port.

Retractable Stand (18): used to support the tool in an upright position on a work bench or flat surface.

Illustration 13	g03349704

Battery Compartment and Cover (19): Holds rechargeable nickel metal hydride (NiMH) 9.6 V 285-0905 Battery Pack.

DIM Description

The DIM is a removable module that connects to the back of the Multi-Tool. The DIM houses the electronics and is used for connecting test tools (sensors, probes, etc.)

IMPORTANT: The Multi-Tool and DIM are calibrated together and have corresponding serial numbers. Do not interchange Multi-Tool and DIM units unless you send them to the factory recalibration.

Illustration 14	g03377044
(20) Locking Bars. (21) Channel Connectors. (22) 285-0896 DIN Adapter. (23) Audio Jack (connector).

Hardware Interface Connector (not shown): Located on the front of the DIM: connects to the DIM port on the back of the Multi-Tool.

Locking Bars (20): Lock the DIM in place on the Multi-Tool.

Channel Connectors (21): Four female 5-pin DIN connectors (color-coded channels) for connecting test tools (sensors, probes, etc.):

• Yellow: Channel 1

• Green: Channel 2

• Blue: Channel 3

• Red: Channel 4

285-0896 DIN Adapter (22): Male to Male, 5-pin DIN adapter, used in Channel 4 (red) for Signal Generator application, Signal Generator Output function.

Audio Jack (23): TRS connector (audio jack), used for the following functions:

• Engine Timing Indicator application, magnetic pickup

• Multitach II application, setpoint measurement

• Signal Generator application calibrator output and frequency counter-input

Power Adapter Descriptions

The Multi-Tool Group includes an AC power adapter with power cords and a DC power assembly.

Illustration 15	g03349732

AC Power Adapter (1): Connect to the power port on the top of the Multi-Tool and to the applicable international AC power cord to supply AC power to the Multi-Tool.

AC Power Cords (2): Four AC power cords for international use. Connect to the AC Power Adapter and an AC power source (wall outlet) to supply AC power to the Multi-Tool.

DC Power Assembly (3): DC power converter. Connect to the power port on the top of the Multi-Tool and to the equipment or vehicle battery to supply power to the Multi-Tool.

User Notes

Table 1

Specifications

Note: This section includes specifications for the 368-9910 Multi-Tool Group hardware and software. For sensor tool group specifications, see individual tool group descriptions in the OPERATION section of this manual.

Table 2

285-0908 Multi-Tool
Color Graphics	320 x 240 LCD Display, transflective for sunlight readability
Keypad	Soft-touch keys
Temperature: Operating	0° to 50° C (32° to 122°F)
Temperature: Storage	-20° to 70°C (-4° to 158°F)
Power Input	9 Vdc to 16 Vdc

Table 3

285-0907 Diagnostic Interface Module (DIM)
Connectors	Four (4) female 5-pin DIN connectors (color-coded channels); One (1) TRS connector (audio jack)
Inputs	Four channels (analog, digital, and frequency inputs vary by application and connected sensor): 0 Vdc to 100 Vdc, 1 Hz to 100,000 Hz Audio jack (for frequency counter): 0.1 Vdc to 50 Vdc, 10 Hz to 100,000 Hz
Outputs	Four channels (individually controlled) 5 Vdc ± 5% at 35 mA, 8Vdc ± 5% at 40 mA, 12 Vdc ± 5% at 125 mA: Channel 4 (Red), with 285-0896 DIN Adapter (for signal generator output frequency): 0 V to 8 V or ± 4V at 10 mA, Sink & Source 1 Hz to 100,000 Hz: Audio jack (for calibrator output frequency): ± 1.5 Vdc ± 5% at 10 mA, Sink & Source, 10 Hz to 100,000 Hz

Table 4

285-0896 5-Pin DIN Adapter
Type	5-Pin DIN, Male to Male
Application	Signal Generator application, Signal Generator Output function
DIM Connection	Channel 4 (Red)

Table 5

285-0906 Universal AC/DC Power Supply
Input Voltage	90 to 240 Vac at 50 Hz to 60 Hz
Output Voltage	15 Vdc at 2A, minimum
Power Cords	Four (4) A/C cords for global requirements

Table 6

285-0904 Battery DC Power Cable Assembly
External Power	9 Vdc to 36 Vdc
Output Voltage	15 Vdc at 2 A
Cord Length	1.2 M (4 ft)
Power Plug	2.5 x 5.5 mm center positive

Table 7

285-0903 Blowby Cable Assembly with Ground Clip
Application	Blowby/Airflow Indicator probe connection
Cable Length	6 M (20 ft)

Table 8

285-0905 Internal Battery Power Pack
Type	NiMh
Volts	9.6
Amp/hr Rating	2300 mA/hr.
Operating Time	Approximately 2 hours (varies by sensor and type of operation)

Table 9

Blowby/Airflow Indicator Application
Blowby Range	8 to 1888 L/min (18 to 4000 ft3/hr)
Resolution	1 L/min (1 ft3/hr)
Airflow Range	43 to 2390 M/min (141 ft/min to 7843 ft/min)
Resolution	1 M/min (1 ft/min)
Output Range	0 mV to 1700 mV
Resolution	1 L/min (1 ft3/hr) at 0.355 mV 1 L/min (1 ft3/hr) at 0.605 mV
Analog to Digital (A/D) Resolution	0.488 mV
Error %	±1%

Table 10

Digital Thermometer Application
Sampling Rate	Every 2 seconds for each channel (After selection of the Screen function key, Clear option, the sampling rate is 0.5 seconds while each channel is scanned once and then returns to every 2 seconds for each channel.)
Temperature: Range Resolution	-50° to 850° C (-58° to 1562° F) ±0.25° C (±0.45° F) at 0.1 Ohms
Measurement Error	-50° to 850° C ±3° C (typical) short-term testing ±5.4° F ±5° (max) long-term testing* (±9° F) *Greater than 75 minutes continuous, includes ambient temperature fluctuations and drift.

Table 11

Electronic Position Indicator Application
Measuring Range	0 mm to 25.4 mm (0 inch to 1 inch)
Probe Travel	27.4 mm (0 inch to 1 inch)
Resolution	0.0254 mm (0.001 inch)
Repeatability	±0.0254 mm (±0.001 inch)
Measurement Error	±0.0508 mm (±0.002 inch) Center Zero of Travel ±0.0762 mm (±0.003 inch) End Zero of Travel

Table 12

Engine Timing Indicator Application
Frequency Range	250 RPM to 4000 RPM
Resolution	12 RPM
Measurement Error	±12 RPM (1)
Timing Range	0 degrees to 60 degrees before top center (TC)
Resolution	0.1 degrees
Measurement Error	±0.4 degrees, maximum(2)

(1)	Within specified sensor operating temperature range, after specified system warmup.
(2)	Measured from connected sensor (transducer). For 6V-7910 Injection Timing Pressure Transducer. Includes a ±0.2 degree interchange error factor (transducer output difference from changing transducers).

Table 13

Fuel Flow Application
Frequency Inputs	Square waves as Hz, from flowmeters, assuming flowmeter output signal is 0 V to 5 V square wave, less than 2 Khz
Fuel Flow/Burn Rate (Calibration):	Range: 10.5 Hz to 3900 Hz 4 to 14762 Lph (1.05 gph to 3900 gph) Factor: Varies by flowmeter
Resolution:	Varies by flow meter, see the individual specifications in Fuel Flow Application in the Operation Section.
Error %:	0.5% at 0 to 378.5 Lph (0 gph to 100 gph) 0.1% at 378.5 to 3785.4 Lph (100 gph to 1000 gph) 0.2% at 3785.4 to 7570.8 Lph (1000 gph to 2000 gph) 0.4% at 7570.8 to 15142 Lph (2000 gph to 4000 gph)

Table 14

MultiTach II Application
RPM Range	40 to 10,000
Hz Range	0 to 4000 Digital1 0 to 10,000 Analog
Setpoint Range	Overrun: 0% to 10% rack contact (open) RPM Lockup: 11% rack contact Lug: 75% to 100% rack contact (closed)
PPR Range	0.5 to 256
Resolution and Error	Vary by pickup (sensor) and PPR, see the individual specifications in MultiTach II Application in the Operation Section
1Digital channel measurement shared by the analog on Channel 4 (with 285-0896 DIN Adapter) or the Audio Jack.

Table 15

Signal Generator Output Application
DIM connection	Channel 4, using 285-0896 DIN Adapter
Output Current	0 Vdc to 8 Vdc, 10 mAmp, sink, and source
Ranges	±4 V, 0 V to 8 V
Error %	±5% peak to peak,
Output Frequency	1 Hz to 100 kHz
Resolution	1, 10, 100, or 1000 Hz
Error%	±2%

Table 16

Calibrator Output Application
DIM Connection	Audio Jack
Output Current Error %	±1.5 Vdc, 10 mAmp, sink, and source ±5% peak to peak
Output Frequency Resolution Error %	1 Hz to 100 kHz 1, 10, 100, or 1000 Hz ± 2%

Table 17

Frequency Counter Input Application
DIM Connection	Audio Jack
Input Current	0.1 Vdc to 50 Vdc
Input Frequency Resolution	10 Hz to 100,000 Hz 1 Hz for 10 Hz to 9999 Hz readings 10 Hz for 10 kHz to 100 kHz readings
Error %	±0.25%

Table 18

Pressure Meter Specifications
Pressure Range	Pressure Sensor	Accuracy Specification
0 PSI to 500 PSI	376-4170	±3% ±5 PSI
0 kPa to 3,500 kPa	376-4170	±3% ±35kPa
0 PSI to 6,000 PSI	376-4171	±3% ±100 PSI
0 kPa to 42,000 kPa	376-4171	±3% ±700 kPa
0 PSI to 10,000 PSI	376-4172	±3% ±100 PSI
0 kPa to 70,000 kPa	376-4172	±3% ±700 kPa
0 PSI to 14,503 PSI	458-6580	±3% ±145 PSI
0 kPa to 100,000 kPa	458-6580	±3% ±1000 kPa
Operating Temperature		0° C to 38°C (0° F to 100°F)
Storage Temperature		-40° C to 66°C (-40° F to 150°F)

Table 19

Burn Rate Fuel Flow Measurement System Specifications
Flowmeter Burn Rate Flow Range	4 Lph to 260 Lph (1.05 gph to 69 gph)1
Calibration Switch Range	100 to 1200 Pulses/Liter
Horsepower Range	11.3 KW to 735 KW (15.2 to 1000 HP)
Flowmeter Accuracy for 800 PPL Meters	±1% of reading ±0.4 Lph (.1 gph)
Flowmeter Accuracy for 804 PPL Meters	±0.2% of reading 0.08 Lph (0.02 gph)
Fuel Temperature Range	-17.7°C to 85°C (0°F to 185°F)
Fuel Temperature Accuracy	0.5° (1°F) providing fuel flow has stabilized the reading
Flowmeter Type	Positive displacement, rotary piston. The Multi-Tool provides automatic temperature compensation and output scaling.

Table 20

Power Requirements 2
Standard	368-9913 24 V DC
Optional	368-9907 12 V DC

Table 21

Filter Response Time
User Selectable	Normal: Once/second Medium: Once/5 seconds Slow: Once/10 seconds

Table 22

Weight
179-0700 Burn Rate Meter	17.7 kg (39 lbs)
179-0705 Hose Group	9.5 kg (21 lbs) Group

Table 23

Size
179-0700 Burn Rate Meter	320 x 298 x 130 mm (12.6 x 11.75 x 5.1 in)(includes filter)
179-0705 Hose Group	664.4 x 393.7 x 109.2 mm (26.0 x 15.5 x 4.3 in)
Note 1: Not recommended for engines with supply fuel lines larger than #10 JIC because of fuel flow restriction.
Note 2: do not turn the burn rate meter ON until the AC power supply has been plugged into an AC power source.

Table 24

Data Recording
Recording Length	One screen width (Time varies per application.)
Number of files	Ten files per application
Applications	Burn Rate Meter (BRM) Pressure Meter (PM) Electronic Position Indicator (EPI)

Part List

Illustration 16	g03343190

Illustration 17	g03343200

Illustration 18	g03377289

Table 25

Item	Part No.	Description
1	285-0908	Multi-Tool
2	285-0907	Diagnostic Interface Module (DIM)
3	285-0896	5-pin DIN Adapter
4	285-0906	Universal AC/DC Power Supply with Four International Power Cords
5	285-0904	Battery DC Power Cable Assembly
6	285-0903	Blowby Cable Assembly with Ground Clip
7	285-0905	Internal Battery Power Pack
8	---	Carrying Case (1)
9	381-8114	USB Flash Drive
---	NEHS1111	Tool Operating Manual (not shown)

(1)	Holds the items listed above.

Compatible Tool Groups

The 368-9910 Multi-Tool Group works with the following new tool groups:

• 285-0900 Blowby Tool Group, Small Engine

• 285-0901 Blowby Tool Group, Large Engine

• 308-7267 Digital Thermometer Group

• 285-0898 Electronic Position Indicator Cable Group

• 285-0897 Engine Timing Group, Mag

• 6V-9060 Engine Timing Group, Gas

• 8T-5301 Engine Timing Group, Diesel

• 308-7271 Fuel Flow Group

• 308-7275 Fuel Flow Hose/Adapter Group

• 308-7264 MultiTach 2 Tool Group

• 308-7265 MultiTach 2 Photo Tool Group

• 285-0899 Signal Generator Cable Group along with the 285-0896 DIN Adapter

• 368-9911 Burn Rate Group

• 368-9914 Pressure Group

Note: Purchase of new tool groups may not be necessary because many of the tools in the new tool groups are in previous tool groups.

Some of the previous tool groups replaced by the new tool groups include the following:

• 1U-8860 Blowby/Airflow Indicator Group, Small Engine

• 179-0710 Burn Rate Fuel Flow Measurement System

• 198-4240 Digital Pressure Indicator Group

• 8T-2700 Blowby/Air Flow Indicator Group, Large Engine

• 4C-6500 Digital Thermometer Group

• 8T-1000 Electronic Position Indicator Group

• 8T-5300 Engine Timing Indicator Group

• 154-8100 FuelCom Fuel Flow Measurement System

• 168-7740 Cat FuelCom Fuel Flow Measurement System for 3600 Engines

• 9U-7400 Multitach II Group

• 9U-7402 Multitach II Photo Group

• 8T-5200 Signal Generator/Counter Group

Accessory Cases (Optional)

285-0902 Accessory Case

Illustration 19	g03343387

The optional 285-0902 Accessory Case holds the following tool groups:

• 285-0900 285-0901 Blowby Tool Groups

• 285-0898 Electronic Position Indicator Group

• 285-0897 8T-5301 6V-9060 Engine Timing Indicator Groups

• 285-0899 Signal Generator Group

202-8643 Accessory Case

Illustration 20	g03343412

The optional 202-8643 Accessory Case holds the new tool groups, except the 308-7271 Fuel Flow Group and the 308-7275 Hose/Adapter Group.

Setup

Overview

Setup includes the following:

• Provide power to the Multi-Tool

• Connect the Diagnostic Interface Module (DIM) to the Multi-Tool

• Adjust the Multi-Tool system settings

• Activate the Multi-Tool applications

• Set up the Printer functions

• Use the Help function

Provide Power

Before using the tool for the first time, install and fully charge the internal battery pack.

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Illustration 21	g03349754
(1) Battery Compartment Cover.

1. Use a Phillips screwdriver to remove the two screws securing battery compartment cover (1) on the bottom of the Multi-Tool. See Illustration 19.
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   Illustration 22	g03350611
   (1) NiMH 9.6 V Battery Pack. (2) Harness.

2. Remove the battery pack (1) and connect the internal battery harness (2). See Illustration 20.

3. Reinstall the battery pack and replace the cover.
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   Illustration 23	g03349732

4. Fully charge (allow 3 hours) the internal NiMH battery pack using either the AC power adapter or the DC power cable assembly (3) as shown above. See Illustration 21.

   1. Insert the power adapter cable into the external power port on the top of the Multi-Tool.

   2. If using the AC power adapter, connect the correct power cord (2) to the AC adapter.

   3. Connect the adapter to the correct power source (AC cord to wall outlet: DC cable to vehicle battery).

Note: The Multi-Tool group includes four international AC power cords. If the correct power cord is not available, use an AC to DC wall power converter approved for your region and the DC power cable assembly. Use only the 285-0904 DC power cable assembly to supply DC power to the Multi-Tool. This cable protects the tool from harmful voltages and voltage spikes.

Illustration 24	g06358530
Do not use any other type of power adapter with the 368-9910 Multi-Tool Group. Using any other power adapter can damage the tool.

Connect the DIM

Connect the 285-0907 Diagnostic Interface Module (DIM) to the back of the Multi-Tool.

Illustration 25	g06358530
Turn OFF the tool before installing or removing the 285-0907 DIM. The Multi-Tool and/or the DIM can be damaged if power is ON during installation or removal.

IMPORTANT: The Multi-Tool and DIM are calibrated together and have corresponding serial numbers. Do not interchange Multi-Tool and DIM units unless you send them to the factory for recalibration.

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Illustration 26	g03350621

1. If necessary, press the Multi-Tool POWER button (1) to turn OFF the power (power indicator light (2) off). See Illustration 26.
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   Illustration 27	g03363363

2. Position the tool to access the back side, then open the DIM port door (3). See Illustration 27.
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   Illustration 28	g03363369

3. Slide out the DIM locking bars (4). (If necessary, carefully use a tool to slide the locking bars). It may be necessary to hold the locking bars in the extended position. See Illustration 28.

4. Position the hardware module with the DIM connector aligned with the port on the back of the Multi-Tool. Make sure that the locking bars are fully extended.
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   Illustration 29	g03363644

5. Insert the DIM into the recessed compartment on the back of the Multi-Tool and press it into place. See Illustration 29.

   Note: The DIM installs easily. If the DIM does not press into place easily, make sure that the locking bars are extended as far as possible and the DIM connector is properly aligned.

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   Illustration 30	g03363670

6. Push both locking bars in to secure (lock) the DIM in place. See Illustration 30.

Illustration 31	g03363880
DIM properly connected to Multi-Tool

Adjust System Settings

Illustration 32	g03350689
(1) POWER Button (2) Direction Keys (3) ENTER Keys

Use the System Setup functions to adjust the default settings for the Multi-Tool and to view information about the tool.

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Illustration 33	g03350672

1. Press the POWER button (1) to turn on the Multi-tool. The Cat Multi-Tool screen displays briefly and then the Application Manager screen displays. See Illustration 32.
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   Illustration 34	g03363914

2. Notice the elements of the Application Manager screen:

   1. Title Bar (1): displays the screen name

   2. Battery Meter (2): displays the current state of charge of the internal battery.

   3. Power Source Icon (3): indicates that the Multi-Tool is currently powered by an external source.

   4. Application Menu (4): lists the Multi-Tool application names and the System Setup function
   Show/hide table

   Illustration 35	g03363938

3. Use the UP and DOWN direction keys (1) to select System Setup (2). See Illustration 35.

4. Press the ENTER key (3) to display the System Setup screen. See Illustration 35.

5. Use the UP and DOWN direction keys to select an item to adjust and then press the ENTER key (3). See Illustration 35.

6. Adjust or view each item as follows:

   Note: Use the EXIT key (4) to return to previous screens.

   Show/hide table

   Illustration 36	g03363956

   1. Contrast Adjust - Adjust the contrast of the LCD screen using the LEFT and RIGHT Direction keys.

   2. Printer Header - Set up a heading that appears on pages printed when using the Print function on many screens. Use the Direction and ENTER keys to select and change values.

   3. Unit Defaults - Adjust the date, time, units of measure, and automatic shutdown time; or turn the audible beep and printer header functions on or off. Use the Direction and ENTER keys to select and change values.

   4. Language Selection - Set the default language for the Multi-Tool software. Use the Direction keys to select a language, press the Select (F1) function key, and then press the EXIT key. Press the ENTER key to approve the message that appears and then turn the Multi-Tool off and on as instructed.

   5. Revision Levels - Displays software version numbers.

   6. Technical Support - Displays technical support information.

   7. Hardware Tests - Select an item, press the ENTER key, and then follow the on-screen instructions to test the LCD screen, keypad keys, backlight, beeper, real-time clock, and printer; or to view the Multi-Tool serial number.

Set Up Printer

The Multi-Tool applications have a print function that prints an image of the currently displayed screen to a connected printer.

A printout includes the screen image and the current date and time. In addition, the Multi-Tool can be set up to include a heading on printouts that display a name, address, and special messages.

Printer setup includes connecting a printer, turning on and setting up the printer header function, and printing a screen.

Note: The Multi-Tool prints to USB inkjet printers with printer command language 3 (PCL 3). As of the printing of this manual, this includes the following printers:

Table 26

Hp DeskJet 3820v

HP Deskjet 460C Mobile

HP Deskjet 5440

HP Deskjet 5550

HP Deskjet 5650

HP Deskjet 5740

HP Deskjet 5940

HP Deskjet 6122

HP Deskjet 6540

HP Deskjet 6940

HP Deskjet 6980

HP Deskjet 7360

HP Deskjet 842C

HP Deskjet 895Cse

HP Deskjet 932C

HP Deskjet 940C

HP Deskjet 952C

HP Deskjet 970Cse

HP Deskjet 9800

HP Deskjet D5160

HP Deskjet D7160

HP Deskjet D7360

HP Officejet 6310 All-In-One

HP OfficejetJ5780 All-In-One

HP Officejet K550 Color

HP Photosmart 8050

HP Photosmart C3180 All-In-One

HP Photosmart C5180 All-In-One

HP Photosmart C5280 All-In-One

HP Photosmart C6180 All-In-One

HP Photosmart C7180 All-In-One

HP Photosmart 8050

Connect Printer

Illustration 37	g03363983
(1) Universal Serial Bus Port.

To connect a printer, attach a USB cord to the USB port on the top of the Multi-Tool and to the USB port on the printer.

Turn On Printer Header Function

To turn on the Multi-Tool printer heading function, do the following:

1. Select System Setup from the Application Manager screen and press the ENTER key.

2. Select Unit Defaults from the System Setup screen and press the ENTER key to display the Unit Defaults screen.

3. On the Unit Defaults screen, use the Direction Keys to set the Printer Header option to On.

4. Use the EXIT key to return to previous screens.

Set Up Printer Header Function

Illustration 38	g03363990

To set up the heading for printouts, do the following:

1. Select System Setup from the Application Manager screen and press the ENTER key.

2. Select Printer Header from the System Setup screen and press the ENTER key to display the Printer Header screen.

3. On the Printer Header screen, use the Direction Keys to define the heading:

   1. Use the UP and DOWN Direction keys to select Name, Address, or Message.

   2. Press the RIGHT Direction key once to move to the first edit box.

   3. Use the UP and DOWN Direction keys to select a character for the box.

      Note: To remove a character and leave a box blank, select the character that is blank (between 0 and A).

   4. Press the RIGHT Direction key to select the next box.

      Note: NOTE: Pressing the LEFT Direction key selects the previous box.

   5. Repeat steps c and d until the line is entered as you want.

      Note: Each line has 16 characters.

   6. Repeatedly press either the LEFT or RIGHT Direction key to return to the Name, Address, or Message box.

   7. Repeat steps a through f until all the information is entered.

Using Help

Illustration 39	g03364452

The Multi-Tool Help function displays helpful information about a screen that is currently displayed.

To use the help function, navigate to a screen for which to obtain help and then press the HELP key (1).

Illustration 40	g03364469

If the screen has a scroll bar on the right side, use the UP and DOWN Direction keys to scroll through the information.

After viewing the information, press the EXIT key to return to the previous screen.

Operation

Blowby/Airflow Indicator Application Overview

Illustration 41	g03364495
Application Manager Screen, Blowby/Airflow Indicator.

Note: For service instructions, refer to the Cat Service Information System and to Special Instruction SEHS8712, Using the 8T-2700 Blowby/Airflow Indicator Group.

The Blowby/Airflow Indicator application is used with the 285-0900 and 285-0901 Blowby/Air Flow Indicator Groups to measure blowby and airflow. The application displays digital readings for volume or air flow as either Metric or SAE units.

The Blowby/Airflow Indicator application can be used to test cylinder condition by measuring blowby (the amount of exhaust gas escaping to the crankcase). This is helpful when determining if engine repair is required. The application can also be used to locate blocked or restricted areas of a radiator core by measuring air flow.

Illustration 42	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Blowby/Airflow Indicator Screen

The Blowby / Airflow Indicator screen has a title bar at the top, a blowby indicator panel on the left side, an airflow indicator panel on the right side, and four function keys at the bottom.

Title Bar

The top line of the screen displays the name of the application and an internal battery indicator.

Blowby Indicator Panel

The Blowby Indicator Panel, on the left side of the Blowby/Airflow Indicator screen, displays blowby test readings.

Illustration 43	g02157887
Blowby Indicator Panel Elements

Blow Rate (1) - Displays blowby rate as either liter/minute (L/MIN) or cubic feet/hour (FT³ /HR) at a selected display update rate of normal, medium, or slow.

Probe / Channel (2) - Displays the probe size (small, large, or "?" for none) and the selected channel to which the probe is connected.

MAX (Maximum) (3) - Displays the maximum reading since the last time the Clear function key (F2) was pressed.

MIN (Minimum) (4) - Displays the minimum reading since the last time the Clear function key (F2) was pressed.

DIFF (Difference) (5) - Displays the difference in value between the minimum and maximum readings since the last time the Clear function key (F2) was pressed.

Graph/Plot (6) - Displays a graph of data points.

Air Flow Indicator Panel

The Air Flow Indicator Panel, on the right side of the Blowby/Airflow Indicator screen, displays airflow test readings.

Illustration 44	g02177365
Air Flow Indicator Panel Elements.

Airflow Rate (1) - Displays airflow rate as either meter/minute (M/MIN) or feet/minute (FT/MIN) at a selected display update rate of normal, medium, or slow.

Probe / Channel (2) - Displays the probe size (small, large, or "?" for none) and the selected channel to which the probe is connected.

MAX (Maximum) (3) - Displays the maximum reading since the last time the Clear function key (F2) was pressed.

MIN (Minimum) (4) - Displays the minimum reading since the last time the Clear function key (F2) was pressed.

DIFF (Difference) (5) - Displays the difference in value between the minimum and maximum readings since the last time the Clear function key (F2) was pressed.

Graph/Plot (6) - Displays a graph of data points.

Blowby/Airblow Indicator Function Keys

The bottom of the Blowby/Airflow Indicator screen displays four function keys. The function keys are used to hold, resume, and clear readings. The function keys are also used to select a test channel, select display units and rate, and print an image of the screen.

Illustration 45	g02177366
Blowby / Air Flow Indicator Screen Function Keys.

Hold/Resume (F1)

Press the "Hold" function key to hold (stop) the readings, press the Resume function key to resume dynamic (changing) readings after holding.

Clear (F2)

Press the "Clear" function key to reset the measured values and to clear the graphs. The current readings become the MIN and MAX values.

Channel (F3)

Press the Channel function key to display a menu for selecting a DIM test channel. Use the UP and DOWN direction keys to select a channel and then press the "ENTER" key.

Note: DIM channels are color coded as follows: Channel 1 - yellow, Channel 2 - green, Channel 3 - blue, and Channel 4 - red.

More (F4)

Press the More function key to display a menu for selecting sampling rate, setting display units to SAE or Metric, or printing a screen image. Use the UP and DOWN Direction keys to select a menu option and then press the ENTER key.

Illustration 46	g02177367
Blowby / Air Flow Indicator Screen (F4) More Function Key Menu

Select from the following menu options:

• Norm (Normal) Rate- the display updates once every second.

• Med (Medium) Rate- the display updates once every 5 seconds. Use to slow the readings when the readings are changing too fast

• Slow Rate- the display updates once every 10 seconds. Use to slow the readings when the readings are changing fast.

• Metric / SAE- select Metric to display blowby readings as liters per minute (L/MIN) and airflow readings as meters per minute (M/MIN). Select SAE to display blowby readings as cubic feet per hour (FT³/HR) and airflow readings as feet per minute (FT/MIN).

• Print- select to print an image of the screen that is displayed.

Blowby Tool Groups

The Blowby/Airflow Indicator application works with the 285-0900 Blowby Tool Group for small engines and the 285-0901 Blowby Tool Group for large engines.

285-0900 Blowby Tool Group

The 285-0900 Blowby Tool Group for small engines is used on engines smaller than 3500 Series and also on smaller 300 Series engines.

Note: The tools in the 285-0900 Blowby Tool Gp (SMALL ENGINE)are also in the 8T-2700 Blowby/Air Flow Indicator.

Illustration 47	g03377363

Table 27

285-0900 Blowby Tool Group (Small Engine)
Item	Part No	Description
1	8T-2685	Blowby Probe
2	-	Bushing and Hose Group
3	285-0903	Cable Assembly with Ground Clip

Note: When using the 8T-2685 Blowby Probe, use the 285-0903 Cable Assembly with Ground Clip, and clip the ground clip to the machine chassis/engine. Make sure that there is a good metal-to-metal connection or the Multi- Tool will not "zero" and the probe will not work properly.

Table 28

285-0900 Blowby Tool Group Specifications
Blowby Range Resolution	8 to 472 L/min (18 to 1000 ft3/hr) 1 L/min (1 ft3/hr)
Probe Error %	±5 % of reading

285-0901 Blowby Tool Group

The 285-0901 Blowby Tool Group for large engines is used on 3500 Series and 3600 Series engines, including ACERT ^TM models and larger 300 Series engines.

Note: The tools in the 285-0901 Blowby Tool Group are also in the 1U-8860 Blowby Indicator Group.

Illustration 48	g02177398

Table 29

285-0901 Blowby Tool Gp (LARGE ENGINE)
Item	Part No	Description
1	1U-8861	Blowby Probe
2	1U-8868	Blowby Hose
3	9M-0164	Clamp

Note: Use either the 285-0903 Cable Assembly or a 6V-2198 Extension Cable to connect the 1U-8861 Blowby Probe to the Multi-Tool DIM.

Table 30

285-0901 Blowby Tool Group Specifications
Blowby Range Resolution	94 to 1888 L/min (200 to 4000 ft3/hr) 1 L/min (1 ft3/hr)
Probe Error %	±10 % of reading

Burn Rate Meter Application

Overview

Note: For service instructions, refer to the Cat Service Information System and to Special Instructions NEHS0776, using the Cat 179-0710 Burn Rate Fuel Flow Measurement System.

Illustration 49	g03364853
(1) Application Manager Screen; Burn Rate Application.

The Burn Rate Meter application is used with the 368-9911 Burn Rate Meter Group to accurately measure fuel consumption and performance on small and medium Cat diesel engines.

The burn rate meter uses one positive displacement flowmeter, making it more accurate than a two-meter system. Problems with air bubbles in the return fuel are eliminated because the return fuel flow is not measured by the flowmeter.

The Burn Rate Meter is powered from the machine's 24 VDC batteries. An optional 12 – 24 V power converter is available for vehicles with 12 V electrical systems.

The 368-9911 Burn Rate Meter Group has an operating range of 4 to 260 Lph (1.05 gph to 69 gph) burn rate and is designed to work with 3116, 3126, 3176, 3208, 3304, 3306, 3406, and 3408 Engines. This system is not recommended for electronic engines larger than 3408 because of fuel line restriction, but can be used for mechanical 3412 Engines with lower fuel flow circulation.

179-0700 Burn Rate Meter

The 179-0700 Burn Rate Meter consists of three (3) parts: a positive displacement fuel meter, an electric fuel pump, and a heat exchanger. The burn rate meter has two fuel loops: the cooling fuel loop (Loop 1) and the engine fuel loop (Loop 2). See Burn Rate Meter Flow Diagram.

The cooling fuel loop (Loop 1) is powered by an electric fuel pump in the burn rate meter. This pump circulates fuel from the fuel tank, through the heat exchanger, and back to the fuel tank. This loop runs continuously and is used to cool the engine return fuel.

The engine fuel loop (Loop 2) supplies fuel to the engine (supply fuel) and then recirculates unburned fuel. The warm, unburned fuel from the engine (return fuel) travels through the heat exchanger to be cooled. The cooled fuel is routed back to the engine and recirculated. The fuel pump of the engine keeps fuel Loop 2 circulating continuously.

As the engine operates and burns fuel, Loop 2 becomes depleted of fuel and must draw fuel from Loop 1. The positive displacement fuel meter measures fuel traveling from Loop 1 to Loop 2. This fuel measurement is converted to a calibrated signal (pulses per liter, or PPL), which represents the burn rate.

Multi-Tool

Illustration 50	g03364858

The Multi-Tool connects to the 179-0700 Burn Rate Meter and is powered using 368-9913 Cable (or 368-9907 cable on 12 VDC vehicle systems).

System calibration is obtained by setting the pulses/liter field within the Burn Rate Meter application. Refer to the "Set PPG/PPL" section. The calibration number stamped on the 179-0700 Burn Rate Meter must match the application setting. The application default is 800 pulses/liter. If the calibration tag on the meter is other than 800 pulse/liter, the setting must be changed within the Multi-Tool application, otherwise readings will not be accurate.

Electronic circuits in the Multi-Tool measure fuel pulses and temperature from the burn rate meter. A semiconductor device attached to the fuel meter measures the fuel temperature and compensates for the change in volume of diesel fuel as the fuel changes temperature. There are 3 filter settings: High rate (1 second average), medium rate (5 second average), and slow rate (10 second average). Longer averages are recommended for low flow rates and shorter averages for higher flow rates.

Illustration 51	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Installation Instructions

Illustration 52	g06358521
Always connect fuel lines before applying power to the burn rate system. The built-in electric fuel pump could spray fuel from an open hose and cause fire or personal injury. Clean all dirt and contamination from the fitting areas where the fuel lines will be disconnected. Do not allow any dirt to enter the lines. Install the appropriate hoses and fittings and tighten so fittings will not leak.

Use this procedure to connect the burn rate meter into the engine fuel system. Although every engine installation cannot be covered here, this procedure is the basic connection method for the burn rate meter. Refer to Burn Rate Meter Flow Diagram during the installation procedure. This illustration shows the burn rate meter installed in the best location. The "From Tank" connection is the most important connection. This is where fuel is supplied to the entire system and should be free from air bubbles and pressure pulses.

1. The "From Tank" line of the burn rate meter must be connected a) directly to the fuel tank and b) before the engine fuel pump.

   Note: Do not connect the "From Tank" line of the burn rate meter after the output of a gear or piston-type transfer fuel pump. The fuel pump of the engine circulates fuel through the engine and the heat exchanger of the burn rate meter. Connecting the burn rate meter after the fuel transfer pump will not allow fuel to circulate through the engine.

2. Select the required hoses and fittings from the hose adapter group to make the necessary connections.

   Note: The hose adapter group includes standard 37 degree flare fittings and O-ring face seal adapters. Special fittings may be required for some installations.

3. Close the fuel shut-off valve at the fuel tank. Use 6V-7555 Tie Straps through the handle and around the body to mount the burn rate meter (two mounting screws on the rear of the meter are also available). The meter should be upright, with the carrying handle on top, when being operated.

Illustration 53	g03364924

Note: The meter can be tipped 30 degrees from an upright position and still work properly.

Engines with Only Supply Fuel Flow Lines (No Return Fuel Flow Lines)

In applications where only one fuel line exists such as in older engines, use this procedure.

1. Install a cap on the "From Engine" fitting of the burn rate meter.

2. The "To Tank" line on the burn rate meter must return to the fuel tank. Since a "To Tank" line on the equipment probably does not exist and must be provided, run the "To Tank" line into the fuel tank fill opening of the equipment. Take steps to make sure that the " To Tank " line cannot come loose and leak fuel or allow dirt into the fuel tank of the equipment.

Fuel Tank

Heat from the engine fuel system is transferred to the fuel tank. To ensure that the engine fuel does not overheat, always keep the fuel tank at least one-third full of fuel. For best results, fill the fuel tank before testing.

Burn Rate Meter

Illustration 54	g03365312
(1) Calibration Tag (Pulses/Liter). (2) Fuel Filter. (3) "From Tank" Connection. (4) "To Tank" Connection. (5) "From Engine" Connection. (6) "To Engine" Connection. (7) Electronic Connector.

Illustration 55	g03365329
(1) Pulses per liter. (2) Pulse width. (3) Meter number. (800 or 804 PPL)

Burn Rate Meter Screen

The Burn Rate Meter screen has a title bar at the top, a burn rate / fuel flow display area in the middle, and four function keys at the bottom.

Title Bar

The top line of the screen displays the name of the application and an internal battery indicator.

Burn Rate Display Area

The burn rate display area contains either one or two panels that display calculated burn rate readings based on selections made with the function keys. The top half of each panel displays the burn rate. The bottom half of each panel displays a burn rate graph.

Illustration 56	g03365336
Burn Rate Meter Screen: One Engine Panel Display, SAE (GPH), Slow Rate

Illustration 57	g03365339
Burn Rate Meter Screen: Two Engine Panel Display, SAE (GPH), Slow Rate

Panel (Engine) Labels (1)

Display the name of each panel. The names are factory-set at Engine 1 and Engine 2.

Data Rate (2)

Displays the data update rate set by using the More function key options: Norm Rate, Med Rate, and Slow Rate.

Previous/Next Indicator (3)

Arrows appear on the left and right side of the screen when the screen is set to display one engine panel at a time by using the Screen function key, 1-Engine option. The arrows indicate that another panel is available for viewing. Use the LEFT and RIGHT Direction keys to display the other panel.

Burn Rate (4)

For each engine panel, displays the calculated burn rate and the measurement units. GPH (gallons per hour) indicates the More function key, SAE option is selected. LPH (liters per hour) indicates the More function key, Metric option is selected.

Totals, Averages, Time (5)

When the screen is set to display one engine (using the Screen function key, 1-Engine option), the screen displays engine burn rate totals on the left side and averages on the right side. These values can be reset using their respective Engine 1 and Engine 2 function keys.

When the screen is set to display two engines (using the Screen function key, 2-Engine option), the screen displays either burn rate totals, or average is displayed for each engine based on settings made with the respective Engine 1 and Engine 2 function keys.

See the Burn Rate Function Keys section for more information.

Instantaneous Readout (6)

When Burn Rate meter connectors (Flow and Temperature) are connected to the Multi-Tool, current temperature and instant flow rates will be displayed in these fields. If tool is not connected, "Chan N/A" will be displayed.

Burn Rate Graph (7)

For each engine, the burn rate is displayed as a line graph with labels. The line graph can be reset by using the Screen function key, Clear option, held by using the Screen function key Hold option. To resume the dynamic graphing, go to the Screen function key and select Resume.

Burn Rate Meter Function Keys

The bottom of the Burn Rate Meter screen displays four function keys that are used to control the Burn Rate application. To use a function key, press the key to display a menu, use the UP, and DOWN Direction keys to select a menu option, and then press the ENTER key. To close the menu without making a selection, press the function key again.

Illustration 58	g03365346
Burn Rate Meter Screen Function Keys

Illustration 59	g03365366
Burn Rate Meter Screen Function Key

Press the Screen function key to select from the following options:

• Hold/Resume - Select Hold to stop the fuel flow readings. Select Resume to start the readings after holding them.

• Clear - Select to reset the current readings and to clear the line graph.

• 1-Engine / 2-Engine - Select 1-Engine to display one engine panel at a time; select 2-Engine to display both engine panels at once.

With 1-Engine-selected, arrows appear on the sides of the screen to indicate that another panel is available for viewing. Use the LEFT and RIGHT Direction keys to change the panel displayed. The Engine 1 panel displays Channels 3 and 4 (blue and red) and the Engine 2 panel displays Channels 1 and 2 (yellow and green).

• Zoom 2X/Resume - Select to enlarge the graphical display area by 2, for the data currently being displayed. To return to the original size or to enlarge the display area further, use the Screen function key and press either Resume or Zoom 4X, respectively.

• Zoom 4X/Resume - Select to enlarge the graphical display area by 4, for the data currently being displayed. To return to the original size or to reduce the display area by half, use the Screen function key and press either Resume or Zoom 2X, respectively.

Illustration 60	g03365497
Engine 1 Function Key (Engine 2 identical)

Use the Engine 1 and Engine 2 function keys to control the burn rate totals, averages, and time displays for each engine panel (see Totals, Averages, and Time in the Burn Rate / Fuel Flow Display Area section).

Press the Engine 1 function key to change the Engine 1 panel; press the Engine 2 function key to change the Engine 2 panel. For each function key, select from the following options:

Note: Some menu options vary if the screen is set to display one engine panel or two engine panels (by using the Screen function key, 1- or 2-Engine options).

When the screen is set to display two engine panels and the display is set to show totals for the engine, select Show Ave to change the display to show averages for the burn rate calculations.

Note: W. Ave is an averaging method named Windowed Average, which calculates averages for the last 60 minutes.

When the screen is set to display two engine panels and the display is set to show averages for the engine, select Show Tot to change the display to show totals for the burn rate calculations.

Note: When changing the display between totals and averages, unless they are stopped or reset, the totals and averages keep accumulating even though they are not showing on the screen.

• Start / Stop Tot - Select Start Tot to begin totaling the burn rate calculations. Select Stop Tot to stop (pause) totaling the burn rate calculations.

• Reset Tot - Select to reset to zero the Total and Time displays of the burn rate calculations. The totals reset even if they are not showing on the screen, such as when showing Averages instead of Totals. (This option does not reset Grand Total.)

Note: Time is kept separately for totals and averages; resetting the Time for one does not reset the Time for the other.

• Reset Gtot - Select to reset to zero the G. Total (Grand Total) display of the burn rate calculations. A message appears to confirm the reset. Press the Yes (F1) function key to confirm or the No (F2) function key to cancel. The Grand Totals reset even if they are not currently showing on the screen, such as, when showing Averages instead of Totals.

• Reset Ave - Select to reset to zero the Windowed Average (W. Ave), Average, and Time displays of the burn rate calculations. The averages reset even if they are not showing on the screen, such as when showing Totals instead of Averages.

• RunTime/Elapsed - select RunTime to accumulate totals, averages, and time only when the fuel burn rate exceeds the burn rate limit set by using the More function key, "Set PPL/PPG" option. If the fuel burn rate drops below the burn rate limit, the totals, averages, and time stop accumulating until the burn rate exceeds the burn rate limit again. Select Elapsed to accumulate totals, averages, and time non-stop, whether there is fuel flow or not.

Illustration 61	g03365534
Burn Rate Meter More Function Key

Press the More function key to select from the following options:

• Norm (Normal) Rate - Select to set the averages and burn rate to update every 1 second.

• Med (Medium) Rate - Select to set the averages and burn rate to update once every 5 seconds. Use to slow the fuel flow readings when they are changing or if the burn rates are unstable.

• Slow Rate - Select to set the averages and burn rate to update once every 10 seconds. Use to slow the fuel flow readings when they are changing or if the burn rates are unstable.

• SAE / Metric - Select SAE to display readings as gallons per hour (GPH). Select Metric to display readings as liters per hour (LPH).

• Set PPG/PPL - Select to enter the desired flow sensor frequency between the limits of 2650 and 4540 PPG (700 to 1200 PPL). Use the right and left arrow to select the engine desired. Press ENTER to open the frequency dialogue box. The numbers in the dialogue box can be changed up or down with the up and down arrow keys. Use the left and right arrow keys to move to the next digit. Press ENTER when the desired PPG/PPL value is present, press ENTER. To leave the screen, press EXIT.

Note: Burn Rate Meters manufactured after January 2013 have an 804 PPL. When the Multi-Tool power is recycled, the PPL will default to 800 PPL and must be changed back to 804 PPL during each use.

Set Burn Rate Limits - an edit box appears. Use the UP and DOWN Direction keys to change the value in a box; use the LEFT and RIGHT Direction keys to move to other boxes. When finished, press the ENTER key to save changes (or press the EXIT key to exit without saving changes).

Note: The Burn Rate Limit is used with the "Run Time" setting made by using the Engine 1 or Engine 2, Elapsed option. See the RunTime/Elapsed description in the Fuel Flow Function Keys section.

Illustration 62	g03365557
Burn Rate PPG Flow Sensor Configuration Screen.

• Save File- Saves the file to the compact flash card with a unique name. Press ENTERtoconfirm save, or press EXIT to close save file and return to the Programs screen.

• Load File- Allows the user to select files saved previously. Use the up and down arrow keys to scroll to the desired file then press ENTER.

• Export - Exports the saved files from the application to the USB drive (Part No. 381-8114) in a fixed-width format. (This allows for import into PC-based spreadsheet applications.) Press ENTER to continue the export or EXIT to cancel.

Note: To import into Microsoft Windows Excel (version 2010, other versions may vary).

1. Open Excel

2. From "File" select Open

3. Select " Removable disk"

4. Select "BR_TEMP"

5. Files of Type: All Files from the pull down tab

6. Select desired File, and "Open" button

7. Choose "Fixed Width" selection and click "Finish" button

Checking the Operation of the Burn Rate System

Use the following procedure to check the operation of the burn rate meter, burn rate computer, and cables. This procedure checks:

• the built-in electric fuel pump.

• the positive displacement fuel meter.

• the temperature sensor.

• the Multi-Tool

• the cable.

Note: This procedure is a functional check only and is not a calibration check.

1. Unscrew (counterclockwise) and fill the fuel filter with diesel fuel. Reinstall the fuel filter, hand-tighten only.

2. Install and tighten a #8 JIC hose (a short hose works best) between the "From Tank" fitting and "To Engine" fitting. The "To Tank" and "From Engine" fittings must be capped.

3. Make sure that the calibration setting is correct. See "Set PPG/PPL" section in this manual.

4. Connect the 368-9913 Cable between the 179-0700 Burn Rate Meter and the Multi-Tool.

   Note: Ensure that all fuel line connections are securely attached because the built-in electric fuel pump could spray fuel from an open hose and cause a fire or personal injury.

5. Connect the battery clamps to a battery with 11 V DC to 32 V DC (using 368-9907 if below 24 V DC). The electric fuel pump in the burn rate meter will start and the hoses will begin filling with fuel.

6. Check all hoses and fittings for leaks. The electric fuel pump makes leaky fittings easy to find as it pressurizes the fuel system.

7. Start the Burn Rate Meter Application from the Multi-Tool. Ensure if connected to Channels 3 and 4, Engine 1 is displayed or if connected to Channels 1 and 2, Engine 2 is displayed.

   Note: The Multi-Tool fuel flow display should now be indicating a burn rate of about 166 Lph (44 gph) as the built-in electric pump circulates fuel through the flowmeter.

8. The fuel temperature should be close to the temperature of the fuel poured into the filter in Step 1.

Playback Recording

Illustration 63	g03365592

1. Instantaneous fuel temperature at center line of graph.

2. Burn Rate Average: Burn Rate value (at center line of graph). This value has been compensated for temperature. This value is averaged at the rate shown in the upper left corner of the box.

3. Instantaneous flow (non-temperature compensated) at center line of graph.

4. Burn Rate Average and time stamp for leading edge of the graph.

5. Time stamp for center line of graph.

Note: The screen function key is only active function key during recording playback. All other function keys are disabled. Scroll the graph from left to right using the directional arrow keys.

Troubleshooting

Table 31

Problem	Possible Cause	Possible Solution
Flow is restricted.	Dirty fuel filter.	Install new 081-4662 Filter.
	Engine fuel circulation too high.	Do not connect to fuel lines larger than #8 JIC.
Burn rate readings are inaccurate.	Fuel entering the burn rate system from the "From Tank" connection has air bubbles or pressure pulses.	Connect the "From Tank" connection as close as possible. Check the piping system for sources of air. Never connect after a piston type fuel pump.
	The flow rate is under 19 Lph (5 gph).	Set the filter switch to low.
	The fuel tank is low on fuel.	Add more fuel to the tank.
Burn rate reads UFL or OFL. UFL=Underflow OFL=Overflow	The burn rate is out of range: 4 to 260 Lph (1.05 gph to 69 gph)	If the burn rate is too low, load the engine. If the burn rate is too high, reduce the load.
	The burn rate meter is not properly installed.	Recheck the installation. Refer to the "Burn Rate meter Installation Diagram".
	The flow sensor configuration is not properly set.	Refer to the SET PPG or SET PPL.

Care and Maintenance

The burn rate meter will require some maintenance after each use.

• Always keep fuel in the burn rate meter and keep the end caps installed when the meter is not being used.

• Do not drop the burn rate meter.

• Never permit dirt or contamination to enter the burn rate meter.

• The fuel filter should be changed every year. The filter can be replaced with a 081-4662 Fuel Filter.

• Do not apply air pressure through the burn rate meter.

Service and Calibration

If the burn rate meter system does not operate correctly, refer to the "Troubleshooting" section. If the problem still cannot be located, disconnect the system from the engine and refer to "Checking the Operation of the Burn Rate Meter System" section.

The burn rate meter comes with a calibration certificate. A label on the burn rate meter indicates the calibration in pulses/Liter.

Note: The burn rate meter should have the calibration checked annually.

Illustration 64	g03365620

Table 32

Burn Rate Meter System Components
Part Number	Description
179-0700	Burn Rate Meter (1)
4C-9660	Carrying Case*
179-0706	Foam Insert*
179-0705	Hose Group*
154-2099	Foam Lid*
368-9907	Optional 12-24 VDC Inverter (2)
368-9913	Standard Cable 24 VDC (3)
*Not shown

Table 33

Burn Rate Fuel Flow Measurement System Specifications
Flowmeter Burn Rate Flow Range	4 Lph (1.05 gph) to 260 Lph (69 gph)(1)
Calibration Switch Range	700 to 1200 Pulses/Liter
Horsepower Range	11.3 KW to 735 KW (15.2 to 1000 HP)
Flowmeter Accuracy for 800 PPL meters	±1% of reading ± 0.4 Lph (.1 gph)
Flowmeter Accuracy for 804 PPL meters	±0.2% of reading .08 Lph (.02 gph)
Fuel Pump	24 VDC
Fuel Temp. Range	-17.7°C to 85°C (0°F to 185°F)
Fuel Temp. Accuracy	0.5°C (1°F) providing fuel flow has stabilized the reading
Flowmeter Type	Positive displacement, rotary piston. The Multi-Tool provides automatic temperature compensation and output scaling.

(1)	Not recommended for engines with supply fuel lines larger than #10 JIC because of fuel flow restriction.

Table 34

Power Requirements
Standard	24 V DC
Optional for 12 V DC	12 V DC 368-9907 Power Supply (1)

(1)	For 12 V DC, order the 368-9907 Power Supply

Table 35

Filter Response Time
User selectable	Normal: Once/second Medium: Once/5 seconds Slow: Once/10 seconds

Table 36

Weight
179-0700 Burn Rate Meter	17.7 kg (39 lbs)
179-0705 Hose Group	9.5 kg (21 lbs) Group

Table 37

Size
179-0700 Burn Rate Meter	320 x 298 x 130 mm (12.6 x 11.75 x 5.1 in) (includes filter)
179-0705 Hose Group	660.4 x 393.7 x 109.2 mm (26.0 x 15.5 x 4.3 in)

Table 38

Service Parts
Part Number	Description
081-4662	Fuel Filter
179-0703	Metric to JIC Adapter
179-0708	Temperature Sensor
179-0704	Fuel Motor Connector

Digital Thermometer Application

Overview

Note: For service instructions, refer to the Cat Service Information System and to Special Instruction NEHS0554, Using the 4C6500 Digital Thermometer Group.

Illustration 65	g03365920
(1) Application Manager Screen, Digital Thermometer Application.

The Digital Thermometer application is used with probes and seal adapters from the 308-7267 Digital Thermometer Group to measure four temperatures at once.

The application displays the temperatures as analog gauges and/or digital readings in either Celsius or Fahrenheit degrees. The readings include actual, minimum, and maximum temperatures or selected temperature differential readings. The application also displays a graph of the actual temperature readings.

The Digital Thermometer application is used to analyze overheating problems. It can be used to read the temperatures of transmission and engine lubricants, cooling and hydraulic system fluids, and engine exhaust.

Illustration 66	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Note: When starting the Digital Thermometer application, if a Tool Calibration message screen appears, it means that the Multi-Tool and DIM must be sent to the factory for calibration. Refer to the Multi-Tool Upgrade Instructions included with the Digital Thermometer Software License Card, NETG5051.

Digital Thermometer Screen

The Digital Thermometer screen has a title bar at the top, a temperature display area in the middle, and four function keys at the bottom.

Title Bar

The top line of the screen displays the name of the application and an internal battery indicator.

Temperature Display Area

The top half of the temperature display area contains one, two, or four channel panels that display temperature readings based on selections made with the function keys. The bottom half of the temperature display area displays a graph of the temperature readings.

Illustration 67	g03365959
Digital Thermometer Screen: Four Channels, Digital, SAE (Fahrenheit), DIFF 1 On, and Bias On.

Illustration 68	g03365986
Digital Thermometer Screen: Two Channels, Analog, Metric (Celsius), DIFF 1 On, and Bias On.

Channel Labels (1)

Display the color and name of each channel. The names can be customized by using the More function key. Set Label option.

Function Indicators (2)

These indicators vary based on function key selections as follows:

• Bias (Relativity) Indicator - for channels 2, 3, and 4, the green B appears on the left side of each channel display panel when the Function functionkey, New Bias, or Bias On option is selected and when the channel temperature bias is "valid." See the Digital Thermometer Function Keys section for more information.

• # Cab (Number of Cables) Indicator - for each channel, displays the number of cables entered by using the More function key, Cable option. See the Digital Thermometer Function Keys section for more information.

Note: When gauges are displayed by using the More function key, Analog option and all four channels are displayed by using the Channel function key, 4-Channel option, the # Cab Indicators do not appear.

• Measurement System Indicator - an F or C appears on the right side of a channel display panel for digital readings and in the center of the gauge for analog readings. F (Fahrenheit) indicates the More function key, SAE option is selected; C (Celsius) indicates the More function key, Metric option is selected.

• Previous/Next Indicator - arrows appear on the left and right side of the screen when the screen is set to display either one or two channels by using the Channel function key. The arrows indicate that other screens are available for viewing. Use the LEFT and RIGHT Direction keys to display the other screens.

Temperature Readings, Digital or Analog/Digital (3)

Displays the temperature readings for each channel as numbers of the More function key, Digital option is selected, or displays the readings as a gauge with numbers if the More function key/ Analog option is selected.

Max (Maximum), Min (Minimum), and Diff (Difference) Readings (4)

For each channel, displays the maximum, minimum, and difference readings since the last time they were reset by using the Screen function key, Clear option.

Note: When all four channels are displayed, the Diff readings do not appear if the associated DIFF1 or DIFF 2 (below) is started.

DIFF1 and/or DIFF 2 (Differential) (5) Displays DIFF1 or DIFF2 readings after the Function function key, Start DIFF1 and/or Start DIFF2 options are selected. See the Digital Thermometer Function Keys section for more information.

Temperature Readings Graph (6)

Displays the temperature readings as a line graph with labels. The line graph can be reset by using the Screen function key, Clear option.

Digital Thermometer Function Keys

The bottom of the Digital Thermometer screen displays four function keys that are used to control the Digital Thermometer application.

Illustration 69	g03366050
Digital Thermometer Screen Function Key Menus (Menus shown together as an example only.)

Note: To use a function key, press the key to display a menu. Use the UP and DOWN Direction keys to select a menu option and then press the ENTER key. (To close the menu without making a selection, press the function key again.)

Screen (F1)

Press the Screen function key to select from the following options:

• Hold/Resume - select Hold to stop the readings; select Resume to start the readings after holding them.

• Clear - select to reset the measured values and clear the line graph. For each channel, the current reading becomes the MIN and MAX values.

Channel (F2)

Press the Channel function key to select from the following options:

• 1-Channel - select to display one channel at a time. Use the LEFT or RIGHT Direction keys to display the other channels (one at a time).

• 2-Channel - select to display two channels at a time. Use the LEFT or RIGHT Direction keys to display the other two channels.

• 4-Channel - select to display all four channels at once.

Function (F3)

Press the Function function key to select from the following options:

• Start/Stop DIFF1 - with all four channels displayed or with two channels (3 and 4) displayed, select Start DIFF1 to display a differential reading for channel 4 minus channel 3 (the DIFF reading appears either near or in place of the Max, Min, Diff readings). Select Stop DIFF1 to stop the DIFF1 reading after starting it.

• Start/Stop DIFF2 - with all four channels displayed or with two channels (1 and 2) displayed, select Start DIFF2 to display a differential reading for channel 2 minus channel 1 (the DIFF reading appears either near or in place of the Max, Min, Diff readings) Select Stop DIFF2 to stop the DIFF2 reading after starting it.

Note: The DIFF1 and DIFF2 options are not available when only one channel is displayed.

• New Bias - select to calculate (and save) temperature differences between channels 2, 3, 4, and channel 1, and to start the bias function.

Note: Use the Bias function to calibrate the Multi-Tool channels and sensors for temperature variations. With all four connected sensors at "room" temperature, the New Bias function calculates the difference between each of the Channel 2, 3, and 4 temperatures and the Channel 1 temperature and uses the differences to adjust future temperature readings.

Note: When New Bias is selected, channel 1 displays the Reference temperature and each of the other channels display the Bias to channel 1 (CH1) calculation, which is the difference between the channel reading and the channel 1 reading.

Note: If a Bias to CH1 calculation is valid [within ±3^1/4C (±5.43^1/4F) of Channel 1], the reading numbers are black-colored. If the calculation is not valid, the reading numbers are red-colored.

The message "Please Wait" and a Hold function key (F1) appears during the calculations. Optionally, press the Hold function key to pause the calculations; press the function key again to restart the calculations.

A message appears to save the bias results. Press the ENTER key to save the bias calculations that are valid and to start the bias function, or press the EXIT key to cancel.

After the valid bias results are saved, a green B appears at the left side of each of the channel 2, 3, and 4 temperature readings to indicate that the bias is valid and the Bias function is on.

Note: The green B appears only if the Bias function is on and the bias is valid for the channel; that is, within ±3^1/4C (±5.4^1/4F) of Channel 1.

After setting the new bias calculations, use the Bias Off/On menu option (described next) to turn the function off and on.

• Bias On/Off - after starting the bias function by using either the Function function key, New Bias option, or the Bias On option, select Bias Off to stop the Bias function. Select Bias On to restart the Bias function after stopping it.

Note: The Bias function stays on when the Digital Thermometer application is exited and even when the Multi-Tool is turned off.

More (F4)

Press the More function key to select from the following options:

• Cable - select to display the Extension Cables screen for entering the number of 6V-2198 Extension Cables attached to each channel of the DIM.

Illustration 70	g03366198
Digital Thermometer Extension Cables Screen.

1. Use the UP and DOWN Direction keys to select the channel to change (1) and then press the ENTER key to display the edit box (2).

2. Use the UP and DOWN Direction keys to change the value in the box. When finished, press the ENTER key to save changes (or press the EXIT key to exit without saving changes).

   Note: The available values are 0 through 9, but 4 is the highest valid value. If values 5 through 9 are selected, the entered value becomes 4.

3. When finished with the cable setup, press the EXIT key to exit the Extension Cables screen.

• SAE / Metric - select SAE to display Fahrenheit (F) temperature readings. Select Metric to display Celsius (C) temperature readings.

• Print - select to print an image of the screen that is currently displayed.

• Set Label - select to display the Set Label screen for customizing the names that appear as the channel labels at the top of each panel in the temperature display area.

Illustration 71	g03366216
Digital Thermometer Set Label Screen.

1. Use the UP and DOWN Direction keys to select the label to change (1) and then press the ENTER key to display the edit boxes (2).

2. Use the UP and DOWN Direction keys to change the value in a box. Use the LEFT and RIGHT Direction keys to move to other boxes. When finished, press the ENTER key to save changes (or press the EXIT key to exit without saving changes).

3. When finished with the label setup, press the EXIT key to exit the Set Label screen.

• Digital / Analog - select Digital to display digital (numbers) temperature readings. Select Analog to display analog (gauges) temperature readings.

Digital Thermometer Tool Groups

The Digital Thermometer application works with the 308-7267 Digital Thermometer Group and with several optional probes.

308-7267 Digital Thermometer Group

The 308-7267 Digital Thermometer Group consists of three resistance temperature device (RTD) probes, an exhaust probe, extension cables, and various seal / probe adapters.

Note: The probes and seal adapters in the 308-7267 Digital Thermometer Group are also available in the 4C-6500 Digital Thermometer Group.

Illustration 72	g03366402

Illustration 73	g03366407

Table 39

308-7267 Digital Thermometer Group
Item	Part No.	Description
1	4C-6424	RTD Probe, 25.4 mm (1.0 in)
2	4C-6265	RTD Probe, 38.1 mm (1.5 in)
3	4C-6266	RTD Probe, 63.5 mm (2.5 in)
4	4C-6268	Exhaust Probe, 215.9 mm (8.5 in), 90i Bend
5	5P-2720	Seal Adapters (6), 1/8 in -27 NPT Thread
6	5P-2725	Seal Adapters (6), 1/4 in -18 NPT Thread
7	4C-4547	Seal Adapter, 1/2 in -20 SAE O-Ring
8	5P-3591	Seal Adapter, 9/16 in -18 SAE O-Ring
9	4C-4545	Seal Adapter, 3/4 in -16 SAE O-Ring
10	6V-2198	Extension Cables (4), 5.5 mm (18 ft)
11	9F-2247	Plug (15), one in each Seal Adapter

Table 40

4C-6264, 4C-6265, and 4C-6266 RTD Probe Specifications
Type	100 ohm at 0iC (32iF), 4 wire thin film element, platinum resistance temperature device (PRTD), stainless steel sheath, 15.2 cm (6.0 in) cable
Diameter	3.18 mm (0.125 in)
Temperature Range	-50° to 400°C (-58° to 752°F)
Probe Error %	±0.25% of reading

Table 41

4C-6268 Exhaust Probe Specifications
Type	100 ohm at 0iC (32°F), 4-wire, wire-wound element in a ceramic body, PRTD, stainless steel sheath, 2.22 m (7 ft 3.5 in) cable
Diameter	6.35 mm (0.25 in)
Temperature Range	-50° to 850°C (-58° to 1562°F)
Probe Error %	±0.50% of reading

Table 42

Seal/Probe Adapter Specifications
Maximum Torque		40 Nm (30 ft lb)
Maximum Pressure:	Fuel/Cooling Systems	690 kPa (100 psi)
	Hydraulic/Transmission Systems	3100 kPa (450 psi)
Maximum Temperature:	Fuel/Cooling Systems	120°c (250°F)
	Hydraulic/Transmission Systems	132°C (270°F)

Optional Digital Thermometer Probes

The following optional probes work with the Digital Thermometer application.

Illustration 74	g03366679

Table 43

Optional Digital Thermometer Probes
Item	Part No	Description
1	4C-6267	RTD Probe, 88.9 mm (3.5 inch)
2	4C-6496	Immersion Hand-held RTD Probe
3	4C-6497	Surface Hand-held RTD Probe

Table 44

4C-6267 RTD Probe Specifications
Type	100 ohm at 0iC (32iF), 4 wire, thin film element, platinum resistance temperature device (PRTD), stainless steel sheath, 15.2 cm (6.0 inch) cable
Diameter	3.18 mm (0.125 inch)
Temperature Range	-50° to 400°C (-58° to 752°F)
Probe Error %	±0.25% of reading

Table 45

4C-6496 Immersion Hand-held RTD Probe Specifications
Type	100 ohm at 0iC (32iF), 4 wire, thin film element, platinum resistance temperature device (PRTD), stainless steel sheath
Diameter	3.18 mm (0.125 inch)
Length	102 mm (4 inch) Probe 127 mm (5 inch) Handle 610 mm (24 inch) Coiled Cable
Temperature Range	-50° to 600°C (-58° to 1112°F)
Probe Error %	±0.55% of reading

Table 46

4C-6497 Surface Hand-held RTD Probe Specifications
Type	100 ohm at 0°C (32°F), 4 wire, thing film element, PRTD stainless steel sheath with exposed element, 2.22 m (7 ft 3.5 inch) cable
Diameter	6.35 mm (0.25 inch)
Length	10.2 cm (4 inch) Probe 12.7 cm (5 inch) Handle 61.0 cm (24 inch) Coiled Cable
Temperature Range	-50° to 250°C (-58° to 482°F)
Probe Error %	±0.60% of reading

Digital Thermometer Group Basic Procedures

Note: For service instructions, refer to the Cat Service Information System and to Special Instruction NEHS0554, Using the 4C6500 Digital Thermometer Group.

To install a seal / probe adapter and probe, clean the area around the test fitting, remove the test fitting plug, and install the seal / probe into the test fitting.

Remove the protective plug (11) from the adapter, lubricate the test probe with petroleum jelly, and carefully insert the probe into the adapter through the self-sealing hole. Tighten the adapter to 40 N·m (30 ft lb) maximum torque.

Connect the probe to the Multi-Tool DIM with one or more extension cables and turn on the Multi-Tool. Start the Digital Thermometer application and use the function keys to control the test functions. For details, see the Digital Thermometer Function Keys section.

Illustration 75	g03366407
(5) 5P-2720 Seal Adapter. (6) 5P-2725 Seal Adapter. (7) 4C-4547 Seal Adapter. (8) 5P-3591 Seal Adapter. (9) 4C-4545 Seal Adapter. (11) 9F-2247 Plug, one in each seal adapter.

IMPORTANT: 9F-2247 Plug (11) protects the inner seal of each Seal / Probe Adapter (5, 6, 7, 8, 9). REMOVE the plug after installing the seal adapter in a test location and before inserting a probe. Replace the plug when not testing.

Illustration 76	g06358530
Use of a seal adapter at pressures or temperatures higher than listed in this manual can result in equipment damage or personal injury.

Electronic Position Indicator Application

Overview

Note: For service information, refer to the Cat Service Information System and to the Special Instruction SEHS8623, Using the 8T-1000 Position Indicator Group.

Illustration 77	g03366737
(1) Electronic Position Indicator Application.

The Electronic Position Indicator application is used with the 285-0898 Position Indicator Cable Group to function as a precision measuring gauge for reading both static and dynamic measurements.

Depending on selections made with the function keys, the application displays either positive (+) or negative (-) digital readings, as either inches or millimeters, for a selected channel. The digital readings include actual, maximum, minimum, and difference readings.

The application also displays a graph of the actual readings and has functions for changing the sampling rate and setting a "zero" point, which sets the actual reading to zero (0) at a selected point on a probe.

The Electronic Position Indicator application replaces mechanical dial indicators. The application has a special electronic filter to stabilize dynamic readings. Therefore, the application can be used for tests that may fail when using mechanical dial indicators, such as tests with rapidly changing dynamic readings.

The application can also be used to monitor the position of the fuel injection pump rack on an operating engine to test the fuel setting of the engine with a load.

In addition, with the 8T-1002 Probe (part of the 285-0898 Position Indicator Cable Group) installed on a test stand, the Multi-Tool Electronic Position Indicator application can be used as a permanent installation for testing and calibrating fuel injection pumps.

Illustration 78	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Electronic Position Indicator Screen

The Electronic Position Indicator screen has a title bar at the top, a position indicator display area in the middle, and four function keys at the bottom.

Title Bar

The top line of the screen displays the name of the function and an internal battery indicator.

Position Indicator Display Area

The top half of the position indicator display area displays measurement readings for one channel based on selections made with the function keys. The bottom half of the position indicator display area displays a graph of the readings.

Sampling Rate (1)

Displays the data sampling rate set by using the More function key Norm Rate/Slow Rate options.

Illustration 79	g03366779
Position Indicator Display Area.

Position Reading (2)

Displays either a positive or negative digital reading based on the current setting made with the More function key, Minus/Plus menu option.

Note: In 4 channel display - negative readings in the Min and Max fields will be displayed in RED.

Measurement System Indicator (3)

Displays the measurement system for the readings as either inch (inches) or mm (millimeters): inch indicates the More function key, SAE option is selected. The "mm" indicates the More function key, Metric option is selected.

Contacts Status / Channel Indicator (4)

Displays the status of the transducer contacts as ON (closed) or OFF (open) and displays the name of the channel [CH#] based on the selection made by using the Channel function key.

Max (Maximum), Min (Minimum), and Diff (Difference) Readings (5)

Displays the maximum, minimum, and difference readings since the last time they were reset by using the Clear function key:

• Max. - the maximum distance the probe shaft has moved from the zero position.

• Min. - the minimum distance the probe shaft has moved from the zero position.

• Diff. - the difference between the Max. and Min. readings.

The Min/Max is displayed for each channel, including for recording purposes.

Note: The Max. Min. and Diff. readings are either positive (+) or negative (-) based on the setting made by using the More function key, Probe (+) or Probe (-) options.

Note: In 4 channel display - negative readings in the Min and Max fields will be displayed in RED.

Position Indicator Graph (6)

Displays the position readings as a line graph with labels. The line graph can be reset by selecting Clear from the Screen function key menu.

Electronic Position Indicator Function Keys

The bottom of the Electronic Position Indicator screen displays four function arrow keys that are used to control the Electronic Position Indicator application.

Illustration 80	g03365346
Electronic Position Indicator Screen Function Keys. (Menus shown together as an example only.)

Note: To use a function key, press the key to display a menu. Use the UP and DOWN Direction keys to select a menu option, and then press the ENTER key. (To close the menu without making a selection, press the function key again.)

Illustration 81	g03366780

Press the Screen function key to select from the following options:

1. Hold/Resume- Press the Hold function key to hold (stop) the readings. Press the Resume function key to start the readings again.

2. Clear- Select to reset the measured values and clear the line graph. For each channel, the current reading becomes the MIN and MAX values.

3. Zoom 2X/Resume- Magnifies the data being displayed by power of two.

4. Zoom 4X/Resume- Magnifies the data being displayed by power of four.

5. Print- Select to print an image of the screen currently displayed.

Illustration 82	g03367099
2X or 4X Zoom Function Activated

During Zoom 2X and Zoom 4X, the File, Channel, and More function key names will be blank. The Screen function key remains active so the user can select Resume from the Screen function menu when the zoom functions are no longer desired.

Illustration 83	g03367136
File Function Key Menu

Press the File function key to select from the following options:

• Save File- Saves the file to the compact flash card with a unique name. Press ENTER toconfirmsave, or press EXIT to close save file and return to the Programs screen.

• Load File- Allows the user to select files saved previously. Use the up and down arrow keys to scroll to the desired file then press ENTER.

• Export - Exports the saved files from the application to the USB drive (Part No. 381-8114) in a fixed-width format. (This allows for import into PC-based spreadsheet applications) Press ENTER to continue the export or EXIT to cancel it.

Note: To import into Microsoft Windows Excel (version 2010, other versions may vary).

1. Open Excel

2. From "File" select Open

3. Select " Removable disk"

4. Select "EPI_TEMP"

5. Files of Type: All Files from the pull down tab

6. Select desired File, and "Open" button

7. Choose "Fixed Width" selection and click "Finish" button

Illustration 84	g03367152
Channel Function Key Menu

Press the Channel function key and the UP and DOWN arrow keys to select from the following options, then press ENTER:

1. Channel 1- Select to display Channel 1 only.

2. Channel 2- Select to display Channel 2 only.

3. Channel 3- Select to display Channel 3 only.

4. Channel 4 (Not shown here)- Select to display Channel 4 only.

5. 4-Channel- Displays all four channels on the Multi-Tool screen simultaneously.

Illustration 85	g03367163
4-Channel Display

Only the available channels will be displayed in the menu. The missing menu item is the item currently being displayed. All channels display minimum, maximum, difference, and current values.

Illustration 86	g03367221
More Function Key Menu

Press the More function key to select from the following options:

• Zero- Select to set the 0.00 position of the probe shaft at the current location (reading). The reading resets to 0.00 and then, as the probe moves, displays the distance between the probe shaft and the zero position. The display is either positive (+) or negative (-) based on the selection made by using the More function key, Probe+ or Probe- menu options.

• Slow Rate/Norm Rate- Sets the sampling rate for the EPI. Normal rate samples 3 times each second. Slow rate samples once each second.

• SAE/Metric- Select SAE (inches) or metric (mm) to display measurements. This function toggles between SAE or Metric.

• Probe +/Probe-: Select Probe- to display readings as negative (-) numbers as the probe shaft travels outward from the probe body and positive (+) numbers as the probe shaft travels inward from the probe body. That is, minus (-) equals outward and plus (+) equals inward. Select Probe+ to display readings as positive (+) numbers as the probe shaft travels outward from the probe body, and negative (-) numbers as the probe shaft travels inward from the probe body. That is, plus (+) equals outward and minus (-) equals inward.

• Set Label- Select to display the Set Label screen for customizing the names that appear as the channel labels at the top of each panel in the temperature display area.

Illustration 87	g03367229
Set Label Screen

Set Label Screen

1. Use the UP and DOWN Direction keys to select the label to change (1) and then press the ENTER key to display the edit boxes (2).

2. Use the UP and DOWN Direction keys to change the value in a box. Use the LEFT and RIGHT Direction keys to move to other boxes. When finished, press the ENTER key to save changes (or press the EXIT key to exit without saving changes).

3. When finished with the label setup, press the EXIT key to exit the Set Label screen.

Note: DIM channels are color coded as follows: Channel 1 - yellow, Channel 2 - green, Channel 3 - blue, and Channel 4 - red.

Electronic Position Indicator Tool Groups

285-0898 Position Indicator Cable Group

The Electronic Position Indicator application works with the 285-0898 Position Indicator Cable Group.

Note: The probe and cable in the 285-0898 Position Indicator Cable Groups are also available in the 8T-1000 Electronic Position Indicator Group.

Illustration 88	g03367235

Table 47

285-0898 Position Indicator Cable Group
Item	Part No.	Description
1	8T-1002	Probe Assembly
2	6V-2198	Extension Cable, 5.5m (18 ft)

Table 48

8T-1002 Probe Assembly Specifications
Internal Threads	AGD 4-48
Diameter	9.52 mm (0.375 inch)
Length	25.4 cm (1 inch) Probe 91.5 cm (3 ft) Cable
Probe Measurement Error	±0.025 mm (±0.001 inch) from 5 mm to 20.3 mm (0.2 to 0.8 inch)(1) ±0.05 mm (±0.002 inch) from 20.3 mm to 25.4 mm (0.8 to 1 inch)(1)

(1)	Distance of probe shaft travel from fully extended position.

Optional 6V-6042 Contact Point Group

The optional 6V-6042 Contact Point Group provides additional contact points (tips) for the 8T-1002 Probe in the 285-0898 Position Indicator Cable Group.

Table 49

6V-6042 Contact Point Group
Part No	Size
5S-8086	2.4 mm (0.094 inch)(1)
9S-8903	2.4 mm (0.094 inch)(2)
8S-3675	3.1 mm (0.120 inch)
6V-2057	3.17 mm (0.125 inch)(3)
3S-3268	6.4 mm (0.25 inch)
9S-0229	9.7 mm (0.38 inch)
9S-8883	12.7 mm (0.50 inch)
5P-4160	19.1 mm (0.75 inch)
3S-3269	25.4 mm (1.00 inch)
5P-7261	31.8 mm (1.25 inch)
5P-2393	38.1 mm (1.50 inch)
3S-3270	44.5 mm (1.75 inch)
5P-4809	50.8 mm (2.00 inch)
5P-6531	57.2 mm (2.25 inch)
5P-7262	63.5 mm (2.50 inch)
5P-4161	69.9 mm (2.75 inch)
5P-7263	76.2 mm (3.00 inch)
5P-4162	95.3 mm (3.75 inch)
5P-4163	120.5 mm (4.75 inch)

(1)	Flat face, 6.4 mm (0.25 inch) diameter.
(2)	Flat face, 12.7 mm (0.50 inch) diameter with a bevel to 9.7 mm (0.38 inch) diameter.
(3)	Flat face, 9.52 mm (0.375 inch) diameter.

Playback Recording

Illustration 89	g03367280

1. Center line with timestamp.

2. Difference between Maximum and Minimum recording values.

3. Maximum reading taken over course of recording.

4. Minimum reading taken over course of recording.

5. Value at center line of graph.

6. Timestamp for leading edge of recording.

Note: Screen function key is only active function key during recording playback, all other function keys disabled. Scroll the graph from left to right using the directional arrow keys.

Electronic Position Indicator Basic Procedures

Probe Assembly

The 8T-1002 Position Indicator Probe (in the 285-0898 Position Indicator Cable Group), is the standard probe for the Electronic Position Indicator application. The probe mounts in the same manner as a mechanical dial indicator and uses many of the same mounting fixtures.

Illustration 90	g03367288
Position Indicator Probe Assembly. (1) 8T-1002 Position Indicator Probe. (2) Probe Shaft. (3) Contact Point.

The position indicator probe (1) has a standard 9.52 mm (0.375 inch) diameter mounting stem. Always use this stem to mount the probe.

Install a correct length contact point (3) in the probe shaft (2) and finger-tighten.

Note: The probe shaft (2) has AGD 4-48 internal threads that accept most standard dial indicator tips, such as those in the 6V-6042 Probe Contact Point Group.

Connect the 8T-1002 Probe to a channel connector on the Multi-Tool DIM. If necessary, use the 6V-2198 Extension Cable.

Illustration 91	g06358530
When removing a contact point (tip) from the probe shaft, if a clamp is required to keep the shaft from rotating, protect the shaft with a cloth and use extreme care not to scratch the shaft. Do not submerge the probe in any liquid or place it in the direct spray of any liquid. The probe is not sealed. If fluid gets inside the probe case, it can affect the operation or accuracy of the probe. Keep the probe shaft clean; dirt on the shaft can enter the shaft bearing and keep the shaft from operating freely. Wipe it with a clean, soft cloth and apply a small amount of thin lubricating oil.

Measuring Values

Illustration 92	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

1. Assemble the probe as described in the previous column.

2. Make the initial Multi-Tool settings by using the function keys.

3. Position the probe at the testing location.

4. The Multi-Tool position reading displays the distance the probe shaft has moved from the electrical zero point.

• If NORM RATE is selected, a new reading is taken three times a second.

• If SLOW RATE is selected, a new reading is taken once every second. The slow rate helps to stabilize the readings when taking rapidly changing dynamic readings.

Measuring Deviation

1. Use the steps in the previous section to set up the probe and Multi-Tool.

2. Set the probe to display 0.00 at the zero reference point of the part or position to be measured by using the More function key, Zero option.

3. Move the probe to the measurement point on the part. The Multi-Tool displays the reading of the point being measured.

4. Select Clear from the Screen function key to reset the readings.

5. The Max (1) and Min (2) readings display the reading of the point measured in Step 3 and the Diff (3) reading displays 0.00.
   Show/hide table

   Illustration 93	g03367340
   (1) Max (maximum). (2) Min (minimum). (3) DIFF (difference).

6. As the probe moves, the Max and Min readings display the highest and lowest values of probe travel and the Diff reading displays the total distance of probe travel (deviation).

Illustration 94	g06358530
Do not force the probe shaft past the normal 24.5 mm (1 inch) range of travel. Damage to the probe can result from exceeding probe travel limits.

Engine Timing Indicator Application

Overview

Note: For service information, refer to the Cat Service Information System and to the Special Instruction SEHS8580, Service Information and Use of 8T-5300 Engine Timing Indicator Group.

Illustration 95	g03367351
(1) Engine Timing Indicator Application.

The Engine Timing Indicator application is used with the sensors in the 285-0897 Mag Engine Timing Group, 6V-9060 Gas Engine Timing Group, and 8T-5301 Diesel Engine Timing Group to check engine timing on gasoline and diesel engines. There are no restrictions on engine speed or load, so timing can be checked during the operation of an engine.

The Engine Timing Indicator application displays engine speed (RPM) for a connected gas or diesel sensor along with the engine timing top center (TC) reading for a magnetic sensor connected to the audio jack on the back of the Multi-Tool DIM. The application also displays a graph of the TC readings at each RPM.

Illustration 96	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Engine Timing Indicator Screen

The Engine Timing Indicator screen has a title bar at the top, a timing indicator display area in the middle, and four function keys at the bottom.

Title Bar

The top line of the screen displays the name of the application and an internal battery indicator.

Timing Indicator Display Area

The timing indicator display area has three panels: an Engine Speed panel at the top left side, an Engine Timing panel on the top right side, and a graph at the bottom.

Illustration 97	g03367361
Engine Timing Indicator Display Area.

Panel Label (1) Displays the name of the panel: Engine Speed for the panel on the left side, Engine Timing for the panel on the right side.

Engine Speed Reading (2) Displays the engine speed (frequency) reading as revolutions per minute (RPM).

Channel Indicator (3) Displays the name of the selected channel.

Engine Timing Reading (4) Displays the engine timing reading as degrees (DEG).

Displays MAG: Adjust if the distance between the transducer and the flywheel is not correct and the magnetic signal at the transducer is bad.

Displays MAG: OK if the distance between the transducer and the flywheel is correct and the magnetic signal at the transducer is good.

Timing Indicator Graph (6) Displays Pressing ENTER button logs data point and then displays a graph of engine timing degrees per RPM based on presses of the ENTER key.

Note: Each press of the ENTER key places a data point on the graph. Use the Clear function key to remove data points.

Engine Timing Indicator Function Keys

The bottom of the Engine Timing Indicator screen displays four function keys that are used to hold, resume, and clear readings, select a test channel, and print an image of the screen.

Illustration 98	g03367376
Engine Timing Indicator Function Keys. (Menus shown together as an example only.)

Hold / Resume (F1): Press the Hold function key to hold (stop) the reading values. Press the Resume function key to resume dynamic (changing) readings after holding them.

Clear (F2): Press the Clear function key to display a menu for clearing data points from the graph. Use the UP and DOWN Direction keys to select a menu option and then press the ENTER key.

• Last - Removes the last data point from the graph. Use this option repeatedly to remove data points one at a time.

• All - Clears all data points from the graph.

Channel (F3): Press the Channel function key to display a menu for selecting a DIM test channel. Use the UP and DOWN Direction keys to select a channel and then press the ENTER key.

Note: DIM channels are color coded as follows: Channel 1 - yellow, Channel 2 - green, Channel 3 - blue, and Channel 4 - red.

Print (F4): Press the Print function key to print an image of the screen that is currently displayed.

Engine Timing Indicator Tool Groups

The Engine Timing Indicator application works with the 285-0897 Mag Engine Timing Group and either the 6V-9060 Gas Engine Timing Group, or the 8T-5301 Diesel Engine Timing Group.

285-0897 Mag Engine Timing Group

The 285-0897 Mag Engine Timing Group consists of adapters (3, 4) and a magnetic pickup (transducer) (2) that connect to the flywheel housing timing pin hole and a signal cable assembly (1) that connects the transducer to the audio jack on the back of the Multi-Tool DIM.

Note: The tools in the 285-0897 Mag Engine Timing Group are also available in the 8T-5300 Engine Timing Indicator Group.

Illustration 99	g03367379

Table 50

285-0897 Mag Engine Timing Group
Item	Part No	Description
1	5P-7362	Signal Cable Assembly
2	6V-2197	Mag. Transducer, 11.4 cm (4.5 in)
3	6V-3093	Transducer Adapter, 1/4 in NPT, 6.35 mm (0.25 in) diameter
4	6V-2199	Transducer Adapter, 1/8 in NPT, 6.35 mm (0.25 in) diameter

Table 51

285-0897 Mag Engine Timing Group Specifications
Ambient Air Temperature Range	-40° to 115°C (-40° to 240°F)

6V-9060 Gas Engine Timing Group

The 6V-9060 Gas Engine Timing Group consists of a fiber optic transmitter (1) and adapters (3, 4) to connect to the number one primary coil winding on a spark-ignited engine. A fiber optic cable (2) connects the transmitter to a fiber optic receiver (5). The fiber optic receiver has a five-pin DIN connector that connects to any of the four channels on the Multi-Tool DIM.

Illustration 100	g03367574

Table 52

6V-9060 Gas Engine Timing Group
Item	Part No	Description
1	8T-5259	Fiber Optic Transmitter
2	8T-5260	Fiber Optic Cable
3	8T-5258	Coil Adapter
4	1U-5524	Spark Timing Adapter
5	8T-5257	Fiber Optic Receiver

Table 53

6V-9060 Gas Engine Timing Group Specifications
Ambient Air Temperature Range	-18° to 82° C (0° to 180° F)

8T-5301 Diesel Engine Timing Group

The 8T-5301 Diesel Engine Timing Group consists of an injection timing pressure transducer assembly (1) and adapters (3, 4, 5) to connect to the engine number one fuel injection pump. The pressure transducer has a five-pin DIN connector that connects to any of the four channels on the Multi-Tool DIM. If necessary, the extension cable (2) can be connected between the transducer assembly and the DIM.

Illustration 101	g03367629

Table 54

8T-5301 Diesel Engine Timing Group
Item	Part No.	Description
1	6V-7910	Injection Timing Pressure Transducer Assembly
2	6V-2198	Extension Cable 5.5 m (18 ft)
3	5P-7435	T-Adapter Group
4	5P-7437	Line Adapter
5	5P-7436	Pump Adapter
--	6V-3016	Washer (1)

(1)

Not Shown

Table 55

8T-5301 Diesel Engine Timing Group Specifications
Ambient Air Temperature Range	-18° to 100° C (0° to 212°) F

Optional 8T-5184 and 8T-5185 Magnetic Transducers

Optionally, the 8T-5184 and 8T-5185 Magnetic Transducers work with the 285-0897 Mag Engine Timing Group

Illustration 102	g03369999

Table 56

Optional Mag Transducers
Item	Part No	Description
1	8T-5184	Mag Transducer, 8.9 cm (3.5 in)
2	8T-5185	Transducer, 17.8 cm (7.0 in)

Engine Timing Indicator Basic Procedures

Note: For complete service instructions, refer to the Cat Service Information System and to the Special Instruction SEHS8580, Service Information and Use of 8T-5300 Engine Timing Indicator Group.

Illustration 103	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Diesel Fuel System Connection

When installing the 8T-5301 Diesel Engine Timing Group, a fuel injection transducer T-adapter must be installed in the injection line AT THE FUEL PUMP to keep the fuel lines from moving excessively. With the transducer tee installed, the injection line will move only about 8mm (0.3 in), which will keep movement of fuel lines to a minimum.

Illustration 104	g06358530
Do not use the 6V-4950 Fuel Line Speed Pickup with the Multi-Tool. The Multi-Tool is not designed for this tool.

Illustration 105	g06358521
Do not expose the Multi-Tool to liquids. Liquids can enter the tool and cause damage. Flammable liquids can cause an explosion, resulting in serious injury.

Static Timing

Most current production Cat diesel engines are equipped with a timing pin hole in the flywheel housing and a corresponding hole in the flywheel. When the two holes are aligned, the piston for the number 1 cylinder is at the top center (TC) position.

For static timing, when the flywheel housing and flywheel holes are aligned, a bolt can be inserted through the flywheel housing hole and threaded into the flywheel hole to lock the engine at the TC position.

Dynamic Timing

Note: To prevent inaccurate signals, make sure that the flywheel is free of any large nicks or holes between the time of fuel injection (or spark plug firing) and TC positioning.

For dynamic timing, the 285-0897 Mag Engine Timing Group is used with either the 6V-9060 Gas Engine Timing Group for testing a gas engine or the 8T-5301 Diesel Engine Timing Group for testing a diesel engine.

The Mag Engine Timing Group connects to the flywheel housing timing pin hole on a gas or diesel engine and to the audio jack on the back of the Multi-Tool DIM.

The 6V-9060 Gas Engine Timing Group connects to the number one primary coil winding on a gas engine and to any of the four channels on the Multi-Tool.

The 8T-5301 Diesel Engine Timing Group connects to the number one fuel injection pump on a diesel engine and to any of the four channels on the Multi-Tool.

To install the 285-0896 Mag Engine Timing Group, install the correct transducer adapter in the flywheel housing timing pin hole and then connect the 6V-2197 Mag Transducer (or optional transducer) to the adapter.

Connect the 5P-7362 Signal Cable Assembly to the Mag transducer and to the audio jack on the back of the Multi-Tool DIM.

Note: Begin with a transducer/flywheel gap of 2.54 mm (0.10 in).

Illustration 106	g03368177
DIM Audio Jack Location

The magnetic transducer creates a magnetic field around the end of the transducer at the flywheel housing timing pin hole.

With the engine running, as the flywheel turns, the flywheel hole passes the end of the transducer, changes the magnetic field, and causes the transducer to send a top center (TC) signal to the Multi-Tool.

Depending on the Engine Timing Group being used (6V-9060 Gas Engine Timing Group or the 8T-5301 Diesel Engine Timing Group), the Multi-Tool receives the spark (gas engines) or fuel injection (diesel engines) signal and then receives the TC signal from the Mag Transducer.

Note: The first signal from the mag transducer is considered the #1 cylinder TC signal.

The Multi-Tool Engine Timing Indicator application receives the fuel spark or injection signals (pulses) and converts their frequency to engine speed (RPM). It measures the time between the number one cylinder spark or fuel injection signal and the TC signal and converts it to engine timing degrees (DEG), before top center (BTC).

Note: After the Multi-Tool receives the spark or fuel injection signal, it must receive the TC signal within 60 degrees of flywheel rotation. If the Multi-Tool receives the TC signal after 60 degrees of flywheel rotation, the Engine Timing reading is incorrect and displays as a steady number between 60 and 90 degrees.

With the engine running, the Multi-Tool Engine Timing Indicator screen displays the RPM and Engine Timing readings. The MAG indicator displays either MAG:Adjust or MAG:OK as follows:

• MAG:Adjust means the distance between the transducer and the flywheel is not correct and the magnetic signal at the transducer is bad. Adjust the distance between the transducer and the flywheel.

Note: The transducer too far away from the flywheel causes a weak signal. The transducer too close causes noise and false triggering.

Note: If the engine is not running, the word Adjust flashes.

Illustration 107	g03368219
(1) MAG: Adjust Indicator. (2) Log Data Point Message.

Note: Optionally, use the ENTER key to add data points to the graph, one at a time. Press the ENTER key for each point to add. Use the Clear function key to remove data points.

• MAG:OK means the distance between the transducer and the flywheel is correct and the magnetic signal at the transducer is good.

Illustration 108	g03368221
(1) MAG: OK Indicator.

Make sure MAG:OK displays at both low and high engine speeds (RPMs). If necessary, adjust the distance between the transducer and the flywheel so that MAG:OK displays at all speeds.

Fuel Flow Application

Note: For service instructions, refer to the Cat Service Information System and to the following Special Instructions: Using the Cat Fuel Com Fuel Flow Measurement System and NEHS0740, Using the Cat 168-7740 (Fuel Com) Fuel Flow System for 3600 Engines.

Illustration 109	g03368225
(1) Application Manager Screen, Fuel Flow Application.

The Fuel Flow application is used with the dual-turbine fuel flowmeters and cables in the 308-7271 Fuel Flow Group and the hoses in the 308-7275 Hose Group to measure diesel engine fuel consumption and performance.

The Multi-Tool DIM provides for connecting up to four flowmeters using a one or two-meter system: In a one-meter system, a flowmeter is connected to only the fuel supply line of one engine (or two engines using two flowmeters). In a two-meter system, a separate flowmeter is connected to each of the supply and return fuel lines of an engine (or two engines using four flowmeters).

The Fuel Flow application displays fuel flow data for either one or two engines. For each engine, the application displays the supply and return fuel flow rates and the calculated burn rate (temperature-corrected). For one-meter systems (measuring supply fuel flow only), the burn rate is equal to the supply fuel flow (because return fuel flow is zero). For two-meter systems, the burn rate is calculated as the supply fuel flow minus the return fuel flow.

Depending on selections made with the function keys, the Fuel Flow application displays fuel flow readings and burn rates as SAE gallons per hour (GPH) or Metric liters per hour (LPH), displays totals or averages for fuel flow readings based on either run time or elapsed time, and displays data for either one or two engines at a time. The application also displays a graph of the fuel burn rates and has a function for setting meter configurations for use of various meters.

In addition to the 308-7273 Dual-Turbine Flowmeters, the Fuel Flow application also works with the 179-0700 Burn Rate Meter or with several other flowmeters, described later in this section.

Illustration 110	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Fuel Flow Meter Screen

The Fuel Flow Meter screen has a title bar at the top, a burn rate / fuel flow display area in the middle, and four function keys at the bottom.

Title Bar

The top line of the screen displays the name of the application and an internal battery indicator.

Burn Rate / Fuel Flow Display Area

The burn rate / fuel flow display area contains either one or two panels that display calculated burn rates and fuel flow readings based on selections made with the function keys. The top half of each panel displays the burn rates and fuel flow readings. The bottom half of each panel displays a burn rate graph.

Illustration 111	g03370084
Fuel Flow Meter Screen: One Engine Panel Display, Metric (LPH), Slow Rate.

Illustration 112	g03370085
Fuel Flow Meter Screen: Two Engine Panel Display, SAE (GPH), Normal Rate.

Panel (Engine) Labels (1)

Display the name of each panel. The names are factory-set at Engine 1 and Engine 2, but can be customized by using the More function key- Set Label option.

Data Rate (2)

Displays the data update rate set by using the More function key options: Norm Rate, Med Rate, and Slow Rate.

Previous/Next Indicator (3)

Arrows appear on the left and right side of the screen when the screen is set to display one engine panel at a time by using the Screen function key, 1-Engine option. The arrows indicate that another panel is available for viewing. Use the LEFT and RIGHT Direction keys to display the other panel.

Burn Rate (4)

For each engine panel, displays the calculated burn rate and the measurement units. GPH (gallons per hour) indicates the More function key, SAE option is selected. LPH (liters per hour) indicates the More function key, Metric option is selected.

Note: The burn rate is generally calculated as the supply fuel flow minus the return fuel flow, temperature-corrected (see Item 7, Channel Fuel Flow Readings). When measuring only supply fuel flow, the burn rate equals the supply fuel flow (because the return fuel flow is zero).

Totals, Averages, Time (5)

When the screen is set to display one engine panel (using the Screen function key, 1-Engine option), the screen displays engine fuel flow totals on the left side and averages on the right side based on settings made with the Engine 1 and Engine 2 function keys.

When the screen is set to display two engine panels (using the Screen function key, 2-Engine option), the screen displays either fuel flow totals or averages for each engine based on settings made with the Engine 1 and Engine 2 function keys.

See the Fuel Flow Function Keys section for more information.

Channel Labels (6)

Displays the color and name of each channel. The names are factory-set as CH1:Return (yellow) and CH2:Supply (green) for Engine 2 and CH3:Return (blue) and CH4:Supply (red) for Engine 1, but can be customized by using the More function key, Set Label option.

Channel (Fuel Flow) Readings (7)

For each channel, displays the fuel flow reading or a red, flashing Under or Over Flow message.

An Under Flow message appears if the fuel flow reading is less than the minimum flow requirements for the flowmeter.

An Over Flow message appears if the fuel flow reading exceeds the capacity of the flowmeter.

If a channel does not have a flowmeter connected to it, a zero flow rate is assumed and the fuel flow reading displays as 0.0.

When using a single meter system (there is not a flowmeter attached to the return fuel line), the Return fuel flow reading must be 0.0 for the burn rate to calculate correctly.

Burn Rate Graph (8)

For each engine, displays the burn rate as a line graph with labels. The line graph can be reset by using the Screen function key, Clear option.

Fuel Flow Function Keys

The bottom of the Fuel Flow Meter screen displays four function keys that are used to control the Fuel Flow application.

Illustration 113	g03370222
Fuel Flow Meter Screen Function Keys. (Menus shown together as an example only.)

Note: To use a function key, press the key to display a menu. Use the UP and DOWN Direction keys to select a menu option and then press the ENTER key. (To close the menu without making a selection, press the function key again.)

Screen (F1)

Press the Screen function key to select from the following options:

• Hold/Resume - Select Hold to stop the fuel flow readings. Select Resume to start the readings after holding them.

• Clear - Select to reset the current readings and to clear the line graph.

• 1-Engine / 2-Engine - select 1-Engine to display one engine panel at a time. Select 2-Engine to display both engine panels at once.

• With 1-Engine selected, arrows appear on the sides of the screen to indicate that another panel is available for viewing. Use the LEFT and RIGHT Direction keys to change the panel displayed. The Engine 1 panel displays Channels 3 and 4 (blue and red) and the Engine 2 panel displays Channels 1 and 2 (yellow and green).

Engine 1 (F2) and Engine 2 (F3)

Use the Engine 1 and Engine 2 function keys to control the burn rate totals, averages, and time displays for each engine panel (see Totals, Averages, and Time in the Burn Rate / Fuel Flow Display Area section).

Press the Engine 1 function key to change the Engine 1 panel. Press the Engine 2 function key to change the Engine 2 panel. For each function key, select from the following options:

Note: Some menu options vary if the screen is set to display one engine panel or two engine panels (by using the Screen function key, 1- or 2-Engine options).

• Show Ave / Show Tot - when the screen is set to display one engine panel, these options do not appear on the menus.

When the screen is set to display two engine panels and the display is set to show totals for the engine, select Show Ave to change the display to show averages for the burn rate calculations.

Note: W. Ave is an averaging method named Windowed Average, which calculates averages for the last 60 minutes.

When the screen is set to display two engine panels and the display is set to show averages for the engine, select Show Tot to change the display to show totals for the burn rate calculations.

Note: When changing the display between totals and averages, unless they are stopped or reset, the totals and averages keep accumulating even though they are not showing on the screen.

• Start / Stop Tot - When the screen is set to display one engine panel, select Start Tot to begin totaling the burn rate calculations. Select Stop Tot to stop (pause) totaling the burn rate calculations.

When the screen is set to display two engine panels, and when the display is set to show totals for the engine (using the Engine function key, Show Tot option), select Start Tot to begin totaling the burn rate calculations. Select Stop Tot to stop (pause) totaling the burn rate calculations.

• Reset Tot - select to reset to zero the Total and Time displays of the burn rate calculations. The totals reset even if they are not showing on the screen, such as when showing Averages instead of Totals. (This option does not reset Grand Total.)

Note: Time is kept separately for totals and averages. Resetting the Time for one does not reset the Time for the other.

• Reset Gtot - select to reset to zero the G. Total (Grand Total) display of the burn rate calculations. A message appears to confirm the reset. Press the Yes (F1) function key to confirm or the No (F2) function key to cancel.

The Grand Totals reset even if they are not currently showing on the screen, such as, when showing Averages instead of Totals.

• Reset Ave - select to reset to zero the Windowed Average (W. Ave), Average, and Time displays of the burn rate calculations. The averages reset even if they are not showing on the screen, such as when showing Totals instead of Averages.

• RunTime / Elapsed - select RunTime to accumulate totals, averages, and time only when the fuel burn rate exceeds the burn rate limit set by using the More function key, Set Meter option. If the fuel burn rate drops below the burn rate limit, the totals, averages, and time stop accumulating until the burn rate exceeds the burn rate limit again.

Select Elapsed to accumulate totals, averages, and time non-stop, whether there is fuel flow or not.

Note: The burn rate limits are set at 7.6 LPH (2 GPH) until changed by using the More function key, Set Meter option.

More (F4)

Press the More function key to select from the following options:

• Norm (Normal) Rate - select to set the averages and burn rate to update every 1 second.

• Med (Medium) Rate - select to set the averages and burn rate to update once every 5 seconds. Use to slow the fuel flow readings when they are changing too fast or are too high, or if the burn rates are unstable.

• Slow Rate - select to set the averages and burn rate to update once every 10 seconds. Use to slow the fuel flow readings when they are changing very fast or are very high, or if the burn rates are unstable.

• SAE / Metric - select SAE to display readings as gallons per hour (GPH). Select Metric to display readings as liters per hour (LPH).

• Set Meter - select to display the Meter Configuration screen for setting the flowmeter rates and frequency multiplication factors (per meter/channel) for the meters being used, and for setting the burn rate limits for the engines being tested.

Note: During testing, if the fuel flow rate is under or over the flowmeter rate entered here (the manufacturers published calibrated range), the channel fuel flow readings display a red flashing Under or Over Flow message.

Illustration 114	g03370230
Fuel Flow Meter Configuration Screen.

1. On the Meter Configuration screen, use the Direction keys to select an item to change and then press the ENTER key.

2. Depending on what is selected, do one of the following:

   • Set Meter Calibration Ranges (a) - a menu appears (shown above for channel 3). Use the UP and DOWN Direction keys to select the correct range for the meter connected to the channel and then press the ENTER key.

   Use the following settings for the CAT flowmeters.

   Show/hide table

   Table 57

   308-7273 Dual-Turbine Flowmeters	189-14760 LPH x 3.785 (50-3900 GPH x 1.0)
   179-0700 Burn Rate Meter with 179-0701 Burn Rate Computer	4-260 LPH x 0.3785 (1.05-69.0 GPH x 0.1)
   154-8103 and 154-8104 Flowmeters	189-1895 LPH x 3.785 (50-500 GPH x 10)
   168-7735 and 168-7745 Flowmeters	560-4663 LPH x 37.85 (148-1232 GPH x 10)

   • Set Meter X10 HZ Factor Check-boxes (b) - press the ENTER key to place or remove the checkmark from the box. A checkmark means that the factor is on for the meter and the fuel flow readings for the meter will be reduced by a factor of 10.

   Note: For all the CAT flowmeters listed in this manual, DO NOT place a check mark in the box. Leave it blank.

   • Set Burn Rate Limits (c) - an edit box appears. Use the UP and DOWN Direction keys to change the value in a box; use the LEFT and RIGHT Direction keys to move to other boxes. When finished, press the ENTER key to save changes (or press the EXIT key to exit without saving changes).

   Note: The Burn Rate Limit is used with the Run time setting made by using the Engine 1 or Engine 2, Elapsed option. See the RunTime / Elapsed description in the Fuel Flow Function Keys section.

3. When finished with the meter and engine setup, press the EXIT key to exit the Meter Configuration screen.

• Set Label - select to display the Set Label screen for customizing the names that appear as the labels at the top and middle of each panel in the burn rate / fuel flow display area.

Illustration 115	g03370236
Fuel Flow Set Label Screen.

1. Use the UP and DOWN Direction keys to select the label to change and then press the ENTER key to display the edit boxes.

2. Use the UP and DOWN Direction keys to change the value in a box. Use the LEFT and RIGHT Direction keys to move to other boxes. When finished, press the ENTER key to save changes (or press the EXIT key to exit without saving changes).

3. When finished with the label setup, press the EXIT key to exit the Set Label screen.

• Print - select to print an image of the screen that is displayed.

Fuel Flow Tool Groups

The Fuel Flow application works with the flowmeters and cables in the 308-7271 Fuel Flow Group and the hoses in the 308-7275 Hose / Adapter Group.

Optionally, the Fuel Flow application works with the 179-0700 Burn Rate Meter and 179-0701 Burn Rate Meter Computer or with the following discontinued fuel flowmeters: 154-8103, 154-8104, 168-7735, and 168-7745. See the Optional Fuel Flow Tools section.

308-7271 Fuel Flow Group

The 308-7273 Dual-Turbine Flowmeters in the 308-7271 Fuel Flow Group have an extremely wide flow range of 190 liters per hour to 14762 liters per hour (50 gallons per hour to 3900 gallons per hour). They are not sensitive to flow direction and do not require straightener tubes or accumulators. They also have built-in screens to protect the turbines from contamination in the fuel lines.

These flowmeters, which are powered by the Multi-Tool, output frequency signals that represent temperature-corrected volumetric flow. The Multi-Tool Fuel Flow application receives and interprets these frequency signals and displays both live readings and accumulated data.

Illustration 116	g03371352

Table 58

308-7271 Fuel Flow Group
Item	Part No	Description
1	6V-3073	Carrying Case, 31.1 x 22.4 x 9.8 cm (12.25 x 8.81 x 3.88 in)
2	308-7274	Cables (2), Flowmeter to DIM, 5.5 m (18 ft)
3	308-7273	Flowmeters (2), Dual Turbine

Table 59

308-7273 Flowmeter

Type: Dual Turbine

Engines: 3408 and 3412 Electronic, 3500, 3606, 3608, 3612, 3616, and some D300.

Application: Dual meter system with one flowmeter connected to the fuel supply line and one connected to the fuel return line. Single meter system with one flowmeter connected to the fuel supply line.

Hose Group Required: 308-7275 Hose/Adapter Group

Description / Function: Cylindrical body with fittings on each end and a cable connector on one side. The fittings are for connecting the hoses to the fuel lines and the cable connector is for connecting the cable to the Multi-Tool DIM. Each flowmeter has a computer, a thermistor temperature sensor, and two internal rotors (turbines). As fuel flows through the body of the flowmeter, the sensor reads fuel "pulses" from the turbines and sends data to the computer. The computer linearizes and temperature-corrects the pulses and sends the data to the Multi-Tool through the cable connection.

Note: The 308-7273 dual-turbine flowmeters replace discontinued flowmeters 154, 8103, 154-8104, 168-7735, and 168-7745.

Table 60

308-7273 Flowmeter Specifications
Dimensions	15.2 cm (6.2 in) length 5.6 cm (2.2 in)diameter (body only) 7.1 cm (2.8 in)diameter (with connector) Size 16 fittings (on each end)
Power Input	9 Vdc to 32 Vdc (1.2 Watt) from Multi-Tool
Output Signals	0 V to 5 V Transistor-Transistor Logic (TTL)
Connector Pins	Pin A: +9 Vdc to 32 Vdc Pin B: GND (-9 Vdc to 32 Vdc) Pin C: +Frequency Out Pin D: -Frequency Out Pin E: +RS485 Pin F: - RS485
Fuel	Type: #2 Diesel Fuel, Winter, and Summer Temperature: -20° to 85°C (-4° to 185°F) Pressure: 1379 kPa (200 psi) maximum
Fuel Flow (Calibration):	Range: 50 Hz to 3900 Hz 190 to 14762 Lph (50 gph to 3900 gph) Factor: 1 Hz = 3.785 Lph (1 gph)
Resolution	0.19 Lph (0.05 gph) from 0 to 378.5 Lph (0 gph to 100 gph) 3.79 Lph (1 gph) from 378.5 to 3785.4 Lph (101 gph to 1000 gph) 15.1 Lph (4 gph) from 3785.4 to 7571 Lph (1001 gph to 2000 gph) 60.5 Lph (16 gph) from 7571 to 15142 Lph (2001 gph to 3900 gph)
Flowmeter Fuel Flow Error %	±1% at 189 to 1136 Lph (50 gph to 300 gph) ±0.5% at 1136 to 14762 Lph (300 gph to 3900 gph)

308-7275 Hose / Adapter Group

The 308-7275 Hose / Adapter Group is used with the Fuel Flow application and the 308-7271 Fuel Flow Group to connect the flowmeters to the fuel lines.

Note: The hoses and adapters in the 308-7275 Hose/Adapter Group are also available in the 1U-5306 and 168-7750 Hose/Adapter Groups.

Illustration 117	g03371360

Table 61

308-7275 Hose/Adapter Group
Part No	Description
4C-9662	Carrying Case, 91.4 x 34.3 x 12.7 cm (36 x 13.5 x 5 in)
6V-3073	Accessories Case, 31.1 x 22.4 x 9.8 cm (12.25 x 8.81 x 3.88 in) (1)
308-7271	Fuel Flow Group (shown above inside 4C-9662 Carrying Case; purchased separately)
1U-5360	Hoses (2), 0.3 m (1 ft), #10(1)(2)
1U-5361	Hoses (2), 1 m (3 ft), #10(1)
1U-5362	Hoses (2), 0.3 m (1 ft), #12(1)
1U-5363	Hoses (2), 1 m (3 ft), #12(1)
2P-9697	Plugs (8), #10 Male(1)
9S-8895	Plugs (8), #12 Male(1)
1P-0043	Nuts (8), #16(1)(3)
067-6684	Reducers (4), #16 Female to #12 Male (1)(3)
072-9601	Reducers (4), #16 Female to #10 Male(1)(3)
5P-1945	Reducers (2), #12 Female to #10 Male(1)
061-8248	Unions (2), #10 Male to #10 Male(1)(4)
4S-6678	Union, #12 Male to 3/4 in pipe thread(1)
8C-8552	Union, #10 Female to 1/2 in NPTF(1)
8C-8553	Union, #12 Female to 3/4 in NPTF(1)
8C-8554	Union, #10 Male to 1/2 in NPTF(1)
9S-7739	Unions (2), #12 Male to #12 Male(1)
6V-6132	Tie Straps (6), Plastic, 20.3 cm (8 in)(1)(5)(6)(2)
6V-7555	Tie Straps (6), Plastic, 1 m (40 in)(1)(5)(6)(2)
168-7733	Hose, 1 m (3 ft), #20(5)
1U-5364	Hoses (2), 3 m (1 ft), #16(5)(6)
1U-5365	Hoses (2), 0.3 m (3 ft), #16(5)(6)
5P-2299	Plugs (8), #16 Male(5)(6)
2P-8148	Nuts (4), #20(5)(6)
6V-0411	Reducers (4), #20 Female to #16 Male(5)(6)
068-4152	Unions (2), #20 Male to #20 Male(5)
9S-7754	Unions(2), #16 Male(5)(6)

(1)	For medium size engines, fuel line sizes 10 and 12, 1/2 in and 3/4 in pipe thread. Also included in 1U-5306 Hose / Adapter Group used with 154-8103 and 154-8104 Flowmeters.
(2)	Also in 179-0705 Hose Group used with 179-0700 Burn Rate Meter.
(3)	Nuts and Reducers may be connected at the factory.
(4)	Also in 179-0705 Hose Group used with 179-0700 Burn Rate Meter.
(5)	For large-size engines, fuel line sizes 16 and 20.
(6)	Also in 168-7750 Hose / Adapter Group used with 168-7735 and 168-7745 Flowmeters.

Optional Fuel Flow Tools

Optional Tools for the Fuel Flow application and tool groups include hose coupling adapters and unions, a burn rate meter and required computer, and various discontinued flowmeters.

Hose Coupling Adapters

Some Cat fuel systems use O-Ring Face Seal (ORFS) fittings instead of Joint Industry Conference (JIC) fittings. For these fuel systems, optional ORFS to JIC hose coupling adapters must be used.

Table 62

ORFS to JIC Hose Coupling Adapters
Part No	Tube OD mm (in)	ORFS SAE Thread Size	JIC Size (Male)
8T-0636	6.4 (0.25)	9/16-18 (Male)	4
8C-7309	6.4 (0.25)	9/16-18 (Female)	4
8T-0403	9.52 (0.375)	11/16-16 (Male)	6
8C-7310	9.52 (0.375)	11/16-16 (Female)	6
8C-7306	12.7 (0.50)	13/16-16 (Male)	8
8C-7311	12.7 (0.50)	13/16-16 (Female)	8
8C-7307	15.8 (0.625)	1-14 (Male)	10
8C-7312	15.8 (0.625)	1-14 (Female)	10
8C-7308	19.1 (0.75)	1 3/16-12 (Male)	12
8C-7313	19.1 (0.75)	1 3/16-12 (Female)	12
8C-7334	25.4 (1.00)	1 7/16-12 (Female)	16
8C-7335	31.75 (1.25)	1 11/16-12 (Female)	20

ORFS Unions

For size 16 and 18 hoses, an ORFS union may be required when using an ORFS to JIC Hose Coupling Adapter.

Table 63

ORFS Unions
Part No	ORFS SAE Thread Size
6V-8734	#16 Male to #16 Male
109-5289	#20 Male to #20 Male

Burn Rate Meter and Hoses

Refer to Burn Rate Meter Application section for detailed information about Burn Rate Meter operation.

154-8103 and 154-8104 Flowmeters (Discontinued)

The 308-7273 dual-turbine flowmeters in the 308-7271 Fuel Flow Group replace the discontinued flowmeters, but the Multi-Tool does work with these discontinued flowmeters.

Note: For details and specifications, refer to Special Instruction NEHS0697, Using the Cat Fuel Com Fuel Flow Measurement System and to the Cat Service Information System.

Illustration 118	g03371375

Table 64

154-8103 and 154-8104 Flowmeters, Medium Engines

Engines: 3408 and 3412 Electronic, 3500, and some D300

Application: Dual meter system with one flowmeter connected to the fuel supply line and one connected to the fuel return line. (NOT for use as a single flowmeter system.)

Cable Required: FT-3098 for each flowmeter, which connects to Multi-Tool DIM.

Hose Group Required: 308-7275 Hose / Adapter Group or 1U-5306 Hose/Adapter Group (Large)

Description / Function: Round base with fuel inflow and outflow fittings on the sides and a cylindrical transmitter threaded into the top. The base has an internal sensor and two internal gears with magnets imbedded in one gear. Fuel flows through the base, turning the gears. The sensor reads fuel "pulses" from the magnets, measures fuel temperature, and sends data to the transmitter. The transmitter contains a microprocessor that linearizes and temperature-corrects the pulses and sends the data to the Multi-Tool through a cable connected to the top of the transmitter.

Table 65

154-8103 and 154-8104 Flowmeter Specifications
Horsepower Range	11.3 kW to 735 kW (15.2 to 1000 HP)
Fuel Temperature Range and Accuracy	-20° to 85°C (-4° to 185°F) 0.5°C (1°F) after readings stabilize
Power Input	Vdc, from Multi-Tool
Output Signals	PPL (PPG) as Frequency (Hz), to Multi-Tool, represent temperature- compensated fuel flow
Fuel Flow (Calibration):	Range: 50 Hz to 500 Hz; 189 to 1895 Lph (50 gph to 500 gph) Factor: 1.0 Hz = 3.785 Lph (1.0 gph)
Resolution:	0.189 Lph (0.05 gph) from 189 to 379 Lph (50 gph to 100 gph) 0.90 Lph (0.25 gph) from 379 to 1895 Lph (100 gph to 500 gph)
Flowmeter	Fuel Flow Error %: ±0.50%

168-7735 and 168-7745 Flowmeters (Discontinued)

The 308-7273 dual-turbine flowmeters in the 308-7271 Fuel Flow Group replace the discontinued flowmeters, but the Multi-Tool does work with these discontinued flowmeters.

Note: For details and specifications, refer to Special Instruction NEHS0740 Using the Cat 168-7740 Fuel Com Fuel Flow System for 3600 Engines and to the Cat Service Information System.

Illustration 119	g03371378

Table 66

168-7735 and 168-7745 Flowmeters, Large Engines

Engines: 3606, 3608, 3612, and 3616

Application: Dual meter system with one flowmeter connected to the fuel supply line and one connected to the fuel return line. (NOT for use as a single flowmeter system.)

Cable Required: FT-3098 for each flowmeter, which connects to Multi-Tool DIM.

Hose Groups Required: 308-7275 Hose / Adapter Group or 68-7750 Hose/Adapter Group and 168-7733 Hose.

Other Tools Required: 1U-5295 Accumulators required for 3612 and 3616 engines.

Description / Function: Round base with fuel inflow and outflow fittings on the sides and a cylindrical transmitter threaded into the top. The base has an internal sensor and two internal gears with magnets imbedded in one gear. Fuel flows through the base, turning the gears. The sensor reads fuel "pulses" from the magnets, measures fuel temperature, and sends data to the transmitter. The transmitter contains a microprocessor that linearizes and temperature-corrects the pulses and sends the data to the Multi-Tool through a cable connected to the top of the transmitter.

Table 67

168-7735 and 168-7745 Flowmeter Specifications
Fuel Temperature Range and Accuracy	-20° to 85°C (-4° to 185°F) 0.5°C (1°F) after readings stabilize
Power Input	Vdc, from Multi-Tool
Output Signals	PPL (PPG) as Frequency, to Multi-Tool, represent temperature-compensated fuel flow
Fuel Flow (Calibration):	Range: 14.8 Hz to 123.2 Hz; 560 to 4663 Lph (148 gph to 1232 gph) Factor: 1 Hz = 37.85 Lph (10 gph)
Resolution	1.9 Lph (0.5 gph) from 560 to 4663 Lph (148 gph to 1232 gph)
Flowmeter Fuel Flow Error %	±0.50 %

Fuel Flow Basic Procedures

Illustration 120	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Diesel Fuel System Connection

Illustration 121	g06350515
Do not expose the Multi-Tool to liquids. Liquids can enter the tool and cause damage. Flammable liquids can cause an explosion, resulting in serious injury.

Illustration 122	g06358521
Always connect and leak-test all flowmeter and fuel line connections before beginning tests. An electric fuel pump could spray fuel from an open hose and cause fire or personal injury.

The Multi-Tool DIM provides for connecting up to four flowmeters using a one- or two-meter system:

• In a one-meter system, a flowmeter is connected to only the fuel supply line of an engine (or two engines using two flowmeters).

• In a two-meter system, a separate flowmeter is connected to each of the supply and return fuel lines of an engine (or two engines using four flowmeters).

The following illustration shows the use of a two-meter system on one engine.

Use the correct hoses from the 308-7275 Hose / Adapter Group to connect the 308-7273 Dual Turbine Flowmeters to the fuel lines.

Illustration 123	g03371383
Engine Fuel Flow, Two-Meter System: (1) Dual-Turbine Flowmeter. (2) Diesel Fuel Tank. (3) Primary Filter. (4) Fuel Transfer Pump. (5) Fuel Filter. (6) Fuel Supply Line. (7) Fuel Injection Pump. (8) Fuel Return Line. (Arrows indicate the direction of fuel flow.)

Notices

Illustration 124	g06358530
Flowmeters have protective end caps. Remove the end caps before use. After use, ALWAYS drain the fuel from the flowmeters and replace the end caps. Flowmeters do not require a rinse. NEVER use or rinse water in a flowmeter. DO NOT apply pressurized air though a flow-meter. Damage to the turbine bearings may result.

Connect each flowmeter to the Multi-Tool DIM using a 308-7274 Cable:

• For a one-meter system, connect the flowmeter to either Channel 2 (green) or Channel 4 (red).

• For a two-meter system, connect the supply line flowmeter to Channel 2 (green) and the return line flowmeter to Channel 1 (yellow), or connect the supply line flowmeter to Channel 4 (red) and the return line flowmeter to Channel 3 (blue).

After making the connections, start the Multi-Tool Fuel Flow application and use the function keys to set up and control the fuel flow testing. See the Fuel Flow Function Keys section.

Two-Meter System Accuracy Formula

The accuracy / error of a two-meter system depends on the amount of fuel burned by the engine in relation to the amount of fuel returned to the tank. As the engine burns less fuel and more fuel returns to the tank, the accuracy decreases (error increases).

Use the following formula to calculate the worst-case error for any supply-to-return-rate reading combination:

[(0.5 x Supply Rate) + (0.5 × Return Rate)] ÷ Burn Rate = ± Percent of Reading Maximum Error

For example, If:

Supply Rate = 2271 Lph (600 gph),

Return Rate = 1135 Lph (300gph), and

Burn Rate = 1135 Lph (300gph)

Note: In this example the Burn Rate is 1/2 the Supply Rate.

Then:

[(.5 × 600 gph) + (.5 × 300 gph)] ÷ 300 = ±1.5% of Reading Maximum Error,

or

300 + 150 (= 450) ÷ 300 = ±1.5% of Reading Maximum Error.

MultiTach II Application

Overview

Note: For service instructions, refer to the Cat Service Information System and to Special Instruction NEHS0605, Using the 9U-7400, 7401, 7402 Multitach II Group.

Illustration 125	g03371387

The MultiTach II application is used with the 308-7264 MultiTach II Tool Group and the 308-7265 MultiTach II Photo Tool Group to function as a programmable tachometer, engine setpoint indicator, or frequency meter.

Depending on selections made with the function keys, the application displays readings as analog gauges and/or digital readings in either revolutions per minute (RPM) or hertz (HZ) cycles per second. The digital readings include actual, minimum, and maximum readings.

The MultiTach II application also displays a graph of the readings and has functions for reading and saving (memorizing) engine setpoint speeds, displaying memorized setpoint readings, and setting pulses per revolution (PPR) for sensors being used.

In addition to the MultiTach II Tool Groups mentioned previously, the MultiTach II application also works with several optional sensors (described later in this section).

Illustration 126	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

MultiTach II Screen

The MultiTach II screen has a title bar at the top, a tachometer display area in the middle, and four function keys at the bottom.

Title Bar

The top line of the screen displays the name of the application and an internal battery indicator.

Tachometer Display Area

The top half of the tachometer display area contains either two or four channel panels that display tachometer readings based on selections made with the function keys. The bottom half of the tachometer display area displays a graph of the tachometer readings.

Illustration 127	g03371844
MultiTach II screen: 4-Channel, Digital, RPM units

Illustration 128	g03371849
MultiTach II Screen: 2-Channel, Analog, Hz units, Hold On.

Channel Labels (1)

Display the color and name of each channel. The names can be customized by using the More function key, Set Label option.

Alternate Tachometer Readings (2)

For each channel, if the More function key, Digital option is selected, displays digital readings as either Hz (Hertz) or RPM (revolutions per minute) depending on the units of measure (UOM) set with the More function key, RPM / Hz option.

Note: This UOM is always the opposite of the UOM set for the Tachometer Readings.

If the More function key, Analog option is selected, the alternate tachometer readings are not displayed.

Tachometer Readings, Digital, or Analog/Digital (3)

For each channel, displays the tachometer readings as numbers if the More function key, Digital option is selected or displays the readings as an analog gauge with numbers if the More function key, Analog option is selected.

Note: The unit of measure (RPM or Hz) is set by using the More function key, RPM / Hz option.

Measurement System Indicator (4)

For each channel, if the More function key, Digital option is selected, displays either RPM or HZ depending on the units of measure (UOM) set with the More function key, RPM / Hz option. RPM (revolutions per minute) indicates the More function key, RPM option is selected. Hz (cycles per second) indicates the More function key, Hz option is selected. If the More function key, Analog option is selected, the UOM indicator is not displayed.

Min (Minimum) and Max (Maximum) Readings (5)

For each channel, if the More function key, Digital option is selected, displays the minimum and maximum readings since the last time they were reset by using the Clear function key. If the More function key, Analog option is selected, the Min and Max readings are not displayed.

PPR Setting (6)

For each channel, if the More function key, Digital option is selected, displays the pulses per revolution (PPR) set by using the Function function key, PPR option. See the MultiTach II Function Keys section for more information. If the More function key, Analog option is selected, the PPR indicator is not displayed.

Graph/Plot (7)

Displays the tachometer readings as a line graph with labels. The line graph can be reset by using the Clear function key.

MultiTach II Function Keys

The bottom of the MultiTach II screen displays four function keys that are used to control the MultiTach II application.

Illustration 129	g03371866
MultiTach II Screen Function Keys.

Hold/Resume (F1)

Press the Hold function key to stop the readings. Press the Resume function key to start the readings after holding them.

Clear (F2)

Press the Clear function key to reset the measured values and to clear the line graph. For each channel, the current reading becomes the MIN and MAX values.

Function (F3)

Press the Function function key to display a menu for selecting the channel for setpoint testing, displaying memorized setpoint readings, or setting PPR values. Use the UP and DOWN Direction keys to select a menu option and then press the ENTER key.

Select from the following menu options:

• Setpoint - displays another menu with Channel 1, Channel 2, Channel 3, and Channel 4 options. Use the UP and DOWN Direction keys to select the channel for reading the engine setpoint and then press the ENTER key.

After selecting a channel, two setpoint indicator boxes appear below the panel for the selected channel. The top box displays status messages and the bottom box displays the word MEMORY.

Note: If the indicator boxes do not appear, make sure that the screen is showing the panel for the selected Channel. (For example, if the More function key, 2-Channel option is selected, press the LEFT or RIGHT Direction key to display the other channels).

Illustration 130	g03371937
MultiTach II Screen: Setpoint Indicator Boxes (Channel 2).

• The top (red) STATUS box appears when the Multi-Tool cannot detect the engine setpoint and closes when the Multi-Tool does detect the setpoint. Possible status messages are:

• CHECK - No input (at audio jack on the back of the Multi-Tool DIN).

Note: If CHECK appears, check the 1P-7446 Rack Contact Cable / 8T-5111 Rack Adapter Cable connection at the audio jack.

• LUG - The rack contact switch is closed. The engine is fully loaded.

• OVERRUN - The rack contact switch is open. The engine has no load.

The bottom (blue and white) MEMORY box flashes until the Multi-Tool detects the setpoint and then stops flashing.

When the Multi-Tool detects setpoint, the channel reading displays the setpoint speed and the Multi-Tool saves (memorizes) the readings for future display (by using the Function function key, Memory option).

To start the actual readings again, press the Resume function key.

• Memory - select to stop (hold) the readings and display the last Setpoint readings that were saved by using the Function function key, Setpoint option.

Note: To start the actual readings again, press the Resume function key.

• PPR - select to display the Set PPR screen for setting the pulses per revolution, per channel, for the rotating components being tested.

Illustration 131	g03371955
MultiTach II Set PPR Screen.

1. Use the UP and DOWN Direction keys to select the channel to change (1) and then press the ENTER key to display the edit boxes (2).

2. Use the UP and DOWN Direction keys to change the value in a box. Use the LEFT and RIGHT Direction keys to move to other boxes. When finished, press the ENTER key.

3. Press the EXIT key to exit the Set PPR screen.

More (F4)

Press to display a menu for setting display units to RPM or Hz, selecting to display either two or four channels on the screen, setting the display to either digital or analog readings, changing the panel labels, or printing an image of the screen. Use the UP and DOWN Direction keys to select a menu option and then press the ENTER key.

Select from the following menu options:

• RPM / Hz - select RPM to display the readings as revolutions per minute. Select Hz to display the readings as hertz (cycles per second).

• 4 Channel / 2 Channel - select 4-Channel to display all four channels at once. Select 2-Channel to display two channels at a time. With two channels displayed, use the LEFT or RIGHT Direction keys to display the other two channels.

• Digital / Analog - select Digital to display digital (numbers) readings. Select Analog to display analog (gauges) readings.

• Set Label - select to display the Set Label screen for customizing the names that appear in the channel labels at the top of each panel in the tachometer display area.

Illustration 132	g03371961
MultiTach IISet Label Screen.

1. Use the UP and DOWN Direction keys to select the label to change (1) and then press the ENTER key to display the edit boxes (2).

2. Use the UP and DOWN Direction keys to change the value in a box. Use the LEFT and RIGHT Direction keys to move to other boxes. When finished, press the ENTER key to save changes (or press the EXIT key to exit without saving changes).

3. When finished with the label setup, press the EXIT key to exit the Set Label screen.

• Print - select to print an image of the screen that is displayed.

Multi-Tach II Tool Groups

The Multi-Tach II application works with the 308-7264 MultiTach II Tool Group and the 308-7265 MultiTach II Photo Tool Group.

308-7264 MultiTach II Tool Group

Note: The tools in the 308-7264 MultiTach II Tool Group are also available in the 9U-7400 MultiTach II Tool Group.

Illustration 133	g03371971

Table 68

308-7264 MultiTach II Tool Group
Item	Part No	Description
1	9U-5140	LED Photo Pickup (1)
2	6V-3137	Photo Pickup Magnetic Base(1)
3	1U-6605	Retro-Reflective Tape, 12 mm x 15.2 m (0.5 inch x 5 ft) Roll(1)
4	6V-3138	Extension Rod, for Magnetic Base(1)
5	6V-2198	Extension Cable, 5.5 m (18 ft)(2)(1)(3)
6	9U-7506	Magnetic Adapter Cable(2)
7	5P-7360	Tachometer Generator(2)
8	1W-2316	Tachometer Drive Adapter(4)(2)
9	5P-1758	Tachometer Drive Adapter Shaft(4)(2)
10	4N-0538	Coupling(4)(2)
11	9S-0211	Clamps (2)(4)(2)
12	9S-3032	Clamps (2)(4)(2)
13	8T-5111	Rack Adapter Cable(3)
14	1P-7446	Rack Contact Cable, 5.5 m (18 ft)(3)

(1)	Used for reading RPM or Hz from a rotating component.
(2)	Used for reading RPM or Hz on engines equipped with a tachometer drive.
(3)	Used with any RPM or Hz reading device to measure engine speed setpoint on diesel engines equipped with a rack contact on the governor.
(4)	Part of 5P-1759 Tachometer Drive Group, packaged together.

308-7265 MultiTach II Photo Tool Group

Note: The tools in the 308-7265 MultiTach II Photo Tool Group are also available in the 308-7264 MultiTach II Tool Group and the 9U-7400 MultiTach II Tool Group.

Illustration 134	g03371976

Table 69

308-7265 MultiTach II Photo Tool Group
Item	Part No	Description
1	9U-5140	LED Photo Pickup
2	6V-3137	Photo Pickup Magnetic Base
3	1U-6605	Retro-Reflective Tape, 12 mm x 15.2 m (0.5 inch x 5 ft) Roll
4	6V-3138	Extension Rod, for Magnetic Base
5	6V-2198	Extension Cable, 5.5 m (18 ft)

Table 70

9U-5140 LED Photo Pickup Specifications
Photo Pickup Range	76 mm to 762 mm (3 inch to 30 inch), distance from retro-reflective tape
DIM Connection	Channel 1, 2, 3, or 4 (with 6V-2198 Extension Cable)
PPR	1.0 (one strip of retro-reflective tape)
RPM Range Resolution Instrumentation Error	500 RPM to 3000 RPM 5 RPM 10 RPM
Hz Range Resolution Instrumentation Error	10 Hz to 50 Hz (Digital, TTL) 0.083 Hz 0.1667 Hz

Table 71

8T-5111 Rack Adapter Cable Specifications
DIM Connection	Audio Jack (with 1P-7446 Rack Contact Cable)

Table 72

5P-7360 Tachometer Generator Specifications
DIM Connection	Channel 1, 2, 3, or 4 (with 9U-7506 Magnetic Adapter Cable)
PPR	20

MultiTach II Optional Tools

The following optional tools work with the MultiTach II application and tool groups.

Illustration 135	g03371985

Table 73

Optional MultiTach II Tools
Item	Part No	Description
1	6V-6113	Amplifier(1)
2	1U-9139	Fuel Line Pickup, Universal(1)
3	8T-5185	Magnetic Transducer, for Timing Bolt Hole, 6.35 mm (0.25 inch) diameter, 17.8 cm (7.0 inch) length
4	6V-2197	Magnetic Transducer, for Timing Bolt Hole, 6.35 mm (0.25 inch) diameter, 11.4 cm (4.5 inch) length
5	8T-5184	Magnetic Transducer, for Timing Bolt Hole, 6.4 mm (0.25 inch) diameter, 8.9 cm (3.5 inch) length
6	8L-4171	Magnetic Pickup, General Purpose
7	6V-2199	Transducer Adapter, 1/8 inch NPT, 6.35 mm (0.25 inch) diameter
8	6V-3093	Transducer Adapter, 1/4 inch NPT, 6.35 mm (0.25 inch) diameter
9	9U-5265	Adapter, Banana Plug, for use with 9U-7506 Magnetic Adapter Cable
10	6V-4156	Cable Assembly, for 8L-4171 Magnetic Pickup, 30.5 cm (1 ft) length
11	8T-5297	Extension Cable, 1 m (3 ft) length
12	4C-6919	Retro-Reflective Tape, Honeycomb Pattern 25 mm x 2.5 m (1.0 inch x 8.3 ft) Roll
13	6V-0093	Retro-Reflective Tape, 12 mm x 47.5 m (0.5 inch x 50 ft) Roll

(1)	Included in 6V-4950 Injection Line Speed Pickup Group. Refer to Special Instructions SEHS8029 and SEHS 7807-3.

Table 74

6V-4950 Injection Line Speed Pickup Group (1U-9139 Fuel Line Pickup and 6V-6113 Amplifier) Specifications
DIM Connection	Channels 1, 2, 3, 4
Fuel Lines	Fits fuel injection lines 5.5 mm to 7.0 mm (0.216 to 0.280 inch) diameter
PPR	0.5
RPM Range Resolution Instrumentation Error	0 RPM to 3000 RPM 5 RPM 10 RPM
Hz Range Resolution Instrumentation Error	10 Hz to 25 Hz (Digital, TTL) 0.0417 Hz 0.083 Hz

Table 75

8T-5185, 6V-2197, 8T-5184 Magnetic Pickup Specifications
DIM Connection	Channels 1, 2, 3, 4, and Audio Jack
Adapter Required	6V-2199 Transducer Adapter, or 6V-3093 Transducer Adapter
Cables Required	9U-7506 Magnetic Adapter Cable, 6V-2198 Extension Cable, optional
PPR	1
Ambient Air Temperature Range	-40° to 121°C (-40° to 250°F)
Resolution	0.1 Hz at 0 Hz to 100 Hz. 1 Hz at 100 Hz to 1000 Hz 10 Hz at 1000 Hz to 10,000 Hz
Instrumentation Error	±0.08 Hz at 100 Hz ±5 Hz at 1000 Hz ±103 Hz at 10,000 Hz

Table 76

8L-4171 Magnetic Pickup Specifications
DIM Connection	Channels 1, 2, 3, 4, and Audio Jack
Cable Required	6V-4156 Cable Assembly
PPR	# of teeth on flywheel or other gear, or # metal objects that will pass the pickup tip during one rotation
Resolution(1)	0.1 Hz at 0 Hz to 100 Hz. 1 Hz at 100 Hz to 1000 Hz 10 Hz at 1000 Hz to 10,000 Hz
Instrumentation Error(1)	±0.08 Hz at 0 Hz to 100 Hz ±5 Hz at 100 Hz to 1000 Hz ±103 Hz at 1000 Hz to 10,000 Hz

(1)	Use the following formula to calculate the Hz:Hz = RPM/60 x PPR.

Pressure Meter Application

The 368-9914 Digital Pressure Group uses sensors and cables to allow technicians to take remote measurements from the system being tested. The pressure meter reads pressure in SAE units of pounds per square inch (PSI) or metric units of kilo-Pascals (kPa). To obtain units of Bar, remove two zeros from the end of the kPa reading. (For example 3500 kPa = 35 Bar). The CAT Multi-Tool allows four channels to be monitored simultaneously. The Multi-Tool tracks each sensor's maximum and minimum pressures or can display the instantaneous differential pressure between two sensors.

The pressure meter applies a zero function when pressure sensors are connected to the tool. When connecting the pressure sensors, it is important the sensor is removed from the vehicle and is in atmospheric air pressure. Failure to do so will result in incorrect readings. Follow the instructions on the screen to zero the sensor.

If multiple sensors are connected to the tool at one time, one "zeroing" will zero all new sensors. Sensors previously connected and zeroed will not be affected by zeroing the new sensors.

Pressure Pickup Sensors

The 376-4170 Pressure Pickup Sensor is used to measure pressure from 0 kPa to 3,500 kPa (0 psi to 500 psi). The 376-4171 Pressure Pickup Sensor is used to measure pressure from 0 kPa to 41,300 kPa (0 psi to 6,000 psi).The 376-4172 Pressure Pickup Sensor is used to measure pressure from 0 kPa to 70,000 kPa (0 psi to 10,000 psi).

Note: The 376-4170 Pressure Pickup Sensor will display pressure in tenths of a PSI (kPA) when the pressure is 0-99 PSI (0-682 kPA).

Illustration 136	g03372138

Note: The 376-4170, 376-4171 and 376-4172 Pressure Pickup Sensors can only be used with the 386-9910 Multi-Tool (or earlier Multi-Tools that have been upgraded using the 386-5908 kit).

Pressure pickup sensors are temperature sensitive. Whenever possible, the pressure pickup sensor should be allowed to warm up to the system temperature. Install the pressure pickup sensors into the test ports of the machine approximately 5 minutes prior to running a test. Zero the sensors before starting the test.

Pressure Meter Screen

The Pressure Meter screen has a title bar at the top, a pressure indicating and graphing area in the middle, and the four function key labels for pressure application at the bottom.

Illustration 137	g03372158
(1) Pressure Meter Screen.

Title Bar

The narrow bar at the top displays the name of the function being displayed and the internal battery charge indicator.

Pressure Display Area

Based on the selections made with the function keys, either analog or digital formats are displayed. A graph of the pressure readings is displayed underneath.

Illustration 138	g03372160
Digital Pressure Screen, Two Channels, Digital, Metric (psi)

Illustration 139	g03372161
Analog Pressure Screen: Four Channels, Analog, SAE (psi)

Channel Labels (1)

The display name of each channel can be customized by using the More function key, Set Label option.

Previous/Next Indicator (2)

Arrows appear on left and right sides of screen when the screen is set to display either one or two channels using Channel function key. The arrows indicate that other screens are available for viewing. Use the LEFT and RIGHT Direction keys to display the other screens.

Measurement Unit Indicator (3)

PSI (pounds per square inch) or kPA (kilo Pascals) appears on the right side of a channel display panel for digital readings. PSI or kPA appears in the center of the gauge for analog readings.

Pressure Readings, Digital, or Analog/Digital (4)

For each channel, the pressure readings are displayed as numbers if the More function key, Digital option is selected. For each channel, the readings are displayed as a gauge with numbers if the More function key, Analog option is selected.

Max (Maximum), Min (Minimum), and Diff (Difference) (5)

For each channel displayed, the maximum, minimum, and difference readings are presented. The difference reading shows the difference in range as that particular channel (max – min). To reset all values, select Clear from the Screen menu.

Note: Difference not displayed when using analog gauge display.

DIFF1 and/or DIFF 2 (Differential) (6)

Displays DIFF1 or DIFF2 readings after the Function key, Start DIFF1 and/or Start DIFF2 option are selected. See the Pressure Meter Function Keys section for more information.

Illustration 140	g03372206
Differential and Pressure Readings

Pressure Readings Graph (7)

Displays the pressure readings as a line graph with labels. The line graph can be reset by using the Screen function key, Clear option.

Pressure Meter Function Keys

The bottom of the Pressure Meter screen displays four function keys that are used to control the Pressure Meter application.

Illustration 141	g03372216
Pressure Meter Function Keys

Note: To use a function key, press the key to display a menu. Use the UP and DOWN Direction keys to select a menu option, and then press the ENTER key. (To close the menu without making a selection, press the function key again.)

Illustration 142	g03372226
Screen Function Key

Press the Screen function key to select from the following options:

• Hold/Resume- Select Hold to stop the readings. Select Resume to start the readings.

• Clear- Select to reset the measured values and clear the line graph. For each channel, the current reading becomes the MIN and MAX values.

• Zoom 2X- Magnifies the data being displayed by power of two.

• Zoom 4X- Magnifies the data being displayed by power of four.

• Print- Select to print an image of the screen that is displayed.

Illustration 143	g03372228
Channel Function Key

Press the Channel function key to select from the following options:

• 1-Channel- Select to display one channel at a time. Use the LEFT or RIGHT Direction keys to display the other channels (one at a time).

• 2-Channel- Select to display two channels at a time. Use the LEFT or RIGHT Direction keys to display the other two channels.

• 4-Channel- Select to display all four channels at once.

Illustration 144	g03372245
Function Key

Press the Function function key to select from the following options:

• Start/Stop DIFF1- With all four channels displayed or with two channels (3 and 4) displayed, select Start DIFF1 to display a differential reading for channel 4 minus channel 3 (the DIFF reading appears either near or in place of the Max, Min, Diff readings). Select Stop DIFF1 to stop the DIFF1 reading after starting it.

• Start/Stop DIFF2- With all four channels displayed or with two channels (1 and 2) displayed, select Start DIFF2 to display a differential reading for channel 2 minus channel 1 (the DIFF reading appears either near or in place of the Max, Min, Diff readings). Select Stop DIFF2 to stop the DIFF2 reading after starting it.

Note: The DIFF1 and DIFF2 options are not available when only one channel is displayed.

• Save File- Saves the file to the compact flash card with a unique name. Press ENTER toconfirmsave, or press EXIT to close save file and return to the Programs screen.

• Load File- Allows the user to select files saved previously. Use the up and down arrow keys to scroll to the desired file then press ENTER.

• Export- Exports the saved files from the application to the USB drive (Part No. 381-8114) in a fixed-width format. (This allows for import into PC-based spreadsheet applications.) Press ENTER to continue the export or EXIT to cancel it.

Note: To import into Microsoft Windows Excel (version 2010, other versions may vary).

1. Open Excel

2. From "File" select Open

3. Select " Removable disk"

4. Select "PM_TEMP"

5. Files of Type: All Files from the pull down tab

6. Select desired File, and "Open" button

7. Choose "Fixed Width" selection and click "Finish" button

• Zero- Allows for pressure sensors to be zeroed without disconnection and reconnection of pressure transducer. Follow on-screen prompts for instruction.

Illustration 145	g03372262
More Function Key

Press the More function key to select from the following options:

• SAE / Metric- Select SAE to display Pounds per Square Inch (PSI) pressure readings; select Metric to display Kilopascals (kPa) pressure readings.

• Set Label- Select to display the Set Label screen for customizing the names that appear as the channel labels at the top of each panel in the temperature display area.

Illustration 146	g03372316
Set Label Screen

1. Use the UP and DOWN Direction keys to select the label to change (1) and then press the ENTER key to display the edit boxes (2).

2. Use the UP and DOWN Direction keys to change the value in a box. Use the LEFT and RIGHT Direction keys to move to other boxes. When finished, press the ENTER key to save changes (or press the EXIT key to exit without saving changes).

3. When finished with the label setup, press the EXIT key to exit the Set Label screen.

• Digital / Analog- Select Digital to display digital (numbers) pressure readings. Select Analog to display analog (gauges) pressure readings.

Pressure Meter Tool Groups

Table 77

368-9914 Pressure Group
Qty	Part No	Description
1	376-4170	500 psi Sensor
2	376-4171	6,000 psi Sensor
3	376-4172	10,000 psi Sensor
4	6v-2198	Extension Cable

Note: Sensors and cables can be purchased individually using Part No. from the table above.

Table 78

Optional Pressure Sensors
Color	Range
376-4170	0 kPA to 3500 kPA (0 psi to 500 psi)
376-4171	0 kPA to 42,000 kPA (0 psi to 6,000 psi)
376-4172	0 kPA to 70,000 kPA (0 psi to 10,000 psi)

Pressure Meter Basic Procedures

Zero Sensors

The pressure meter applies a zero function when pressure sensors are connected to the tool. When connecting the pressure sensors, it is important that the sensor is removed from the vehicle and is in atmospheric air pressure. Failure to do so will result in incorrect readings. Follow the instructions on the screen to zero the sensor.

The Multi-Tool also provides a Zero Function where the pressure sensors can be zeroed at any time using the following procedure.

1. Select (F3) FUNCTION and use the UP Down arrows to select Zero and press Enter
   Show/hide table

   Illustration 147	g03372331

2. Use the function keys to select the Pressure Sensor to zero and press Enter.
   Show/hide table

   Illustration 148	g03372339

3. Exit when done.

Differential (Delta) Pressure Connectors

Differential pressures can be measured across connector channels 1 and 2 or 3 and 4. To measure differential pressures:

1. Connect Sensors to pressure ports and allow time to stabilize temperature.

2. Connect extension cables and pressure pickup sensors to channels 1 and 2 (or 3 and 4) on Multi-Tool. Press ENTER key as described above to zero sensors.
   Show/hide table

   NOTICE
   Do not press ENTER to zero the sensors with pressure on the system.

3. From the Channel menu, select desired display (2 or 4 Channel).

4. From the Function menu, select START DIFF1 to begin comparison of Channel 4 – Channel 3. Select START DIFF2 to begin comparison of Channel 2 – Channel 1.

5. Apply pressure to the system.

6. The display will indicate the pressure of Channel 2 in relation to Channel 1. For example, if Channel 2 is 300 psi and Channel 1 is 200 psi, the differential will be shown as 100 psi indicating that Channel 2 is 100 psi higher than Channel 1.

7. To discontinue the Differential measurements, from the Function menu, select Stop DIFF1 (or Stop DIFF2).

Min/Max Function

Minimum and maximum readings are recorded and displayed by the tool.

Range Selection

The tool will automatically detect which pressure sensor has been connected, and adjust the range accordingly.

Note: The 6,000 psi sensor is capable of reading pressures to 10,000 psi. However, if 6000 psi is exceeded, it will result in the following warning message:

Illustration 149	g03372349
Warning Message

The message is to notify the user that the pressure is exceeding the coupler maximum rating, and the larger coupler should be used. Once Resume is selected, the red warning will remain on the display.

Illustration 150	g03372357
Warning Reminder

Playback Recording

Illustration 151	g03372364

1. Front line reference timestamp.

2. Center line of graph with timestamp.

3. Minimum and Maximum pressure readings during recording.

4. Pressure value at center line of graph.

5. Rear line reference timestamp.

Note: Screen function key is only active function key during recording playback, all other function keys disabled. Scroll the graph from left to right using the directional arrow keys.

Maintenance

Keep the indicator, cables, and connections free of oil, dirt, and grime.

Illustration 152	g06358530
Do not use carburetor cleaner solvent or other similar products to clean the indicator, cables, or connectors. This type of solvent will melt the cables and other plastic parts on the indicator.

• To clean the cables and connectors, use a waterless hand cleaner. Avoid getting any type of cleaner into the pressure or temperature connector sockets or plugs.

• To avoid damage to the indicator, keep it away from sources of very high temperatures [above 66°C (150°F)] or direct sunlight.

Signal Generator Application

Note: For service information, refer to the Cat Service Information System and to Special Instruction SEHS8579, Use of 8T-5200 Signal Generator/Counter Group.

Illustration 153	g03372386
(1) Signal Generator Application.

The Signal Generator application works with the 285-0896 DIN Adapter and the 285-0899 Signal Generator Cable Group to produce square waves that simulate the signal from a magnetic speed pickup. This is helpful for troubleshooting transmission electronic control units. The application also functions as a frequency counter for pulsating AC or DC input.

When the Signal Generator application is selected from the Application Manager screen, the Signal Generator screen displays a menu for selecting a signal generator function.

Illustration 154	g03372427
Signal Generator Screen.

The Signal Generator application has three functions:

• Signal Generator Output - provides a ±4 V or 0 to 8 V output connection, capable of driving control circuits with pull-up and pull-down resistors. A magnetic pickup is not required.

• Calibrator Output - provides a ±1.5 V output connection that works as a frequency reference for checking and calibrating diagnostic tools.

• Frequency Counter Input - works as a frequency (Hz) counter when the input is a pulsating AC or DC signal between 0.1 and 50 V.

Signal Generator Output Function

Illustration 155	g03372437
(2) Signal Generator Output Function.

The Signal Generator Output function is used with the 285-0896 DIN Adapter and the 6V-2198 Extension Cable to provide a square wave output signal through Channel 4 (red) of the Multi-Tool.

The Signal Generator Output function displays the output signal as digital Hertz (Hz) at either ±4 V or 0 V to 8 V amplitude and at a resolution of either 1, 10, 100, or 1000. The resolution can be adjusted by using the LEFT and RIGHT Direction keys and the output signal can be adjusted by using the UP and DOWN Direction keys.

In addition, the function keys can be used to turn the output signal on and off, change the amplitude, and print an image of the screen.

Illustration 156	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Signal Generator Output Screen

The Signal Generator Output screen has a title bar at the top, a signal output display area in the middle, and three function keys at the bottom.

Title Bar

The top line of the screen displays the name of the function and an internal battery indicator.

Signal Output Display Area

The signal output display area has an ON / OFF indicator at the top, the output signal in the center, and an amplitude and resolution status line at the bottom.

Illustration 157	g03372443
Signal Generator Output Screen.

ON / OFF Indicator (1)

Displays either ON or OFF based on the selection made by using the On/Off function key. Also displays a helpful message about setting the Hz and resolution.

Output Signal (2)

Displays the current setting, in Hertz (HZ), for the output signal based on the selection made using the UP and DOWN Direction keys.

Note: The setting changes in increments of 1, 10, 100, or 1000 based on the current Resolution setting, described next. For example, if the Resolution setting is 1000, the Output Signal changes in increments of 1000.

Amplitude and Resolution Status (3)

Displays the channel name as [CHANNEL 4], displays the current setting for the amplitude as [+/- 4 V] or [0-8 V] based on the selection made by using the Amplitude function key, and displays the current setting for the resolution made by using the LEFT and RIGHT Direction keys.

Signal Generator Output Function Keys

The bottom of the Signal Generator Output screen displays three function keys that are used to control the signal generator output function.

Illustration 158	g03372446

On / Off (F1)

Press the On function key to start the output signal. Press the Off function key to stop the output signal after starting it.

Amplitude (F3)

Press the Amplitude function key to display a menu for setting the amplitude to ±4 V or 0-8 V. Press the ENTER key to select the option.

Print (F4)

Press the Print function key to print an image of the screen that is currently displayed.

441-7090 Current Speed Sensor Simulator Cable

Illustration 159	g03550796

The 441-7090 Current Speed Sensor Simulator Cable is plugged into channel 4 on the Multi-Tool. It is used to convert the 0-8 V square wave signal into a 6 to 12mAmp signal to simulate Current Speed Sensors such as the 238-0120.

It is possible to run two cables from the same Multi-Tool using the 448-7983 Cable. The Signal Generator Counter output must be set for 0-8 V.

Illustration 160	g03550817
448-7983 Cable

A fabricated tool drawing is available to connect two cables into the loopback connector on Articulated Trucks.

Illustration 161	g03550824

Illustration 162	g03550857
FT Cable (FT3235)

Calibrator Output Function

Illustration 163	g03372453
(1) Calibrator Output Function.

The Calibrator Output function is used with the 8T-5197 Calibrator Cable and Adapter to provide a square wave output signal through the audio jack on the back of the Multi-Tool DIM.

The Calibrator Output function displays the output signal as digital Hertz (Hz) at 0 V to 3 V amplitude and at a resolution of either 1, 10, 100, or 1000. The resolution can be adjusted by using the LEFT and RIGHT Direction keys and the output signal can be adjusted by using the UP and DOWN Direction keys.

In addition, the function keys can be used to turn the output signal on and off and print an image of the screen.

Illustration 164	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Calibrator Output Screen

The Calibrator Output screen has a title bar at the top, a signal output display area in the middle, and two function keys at the bottom.

Title Bar

The top line of the screen displays the name of the function and an internal battery indicator.

Calibrator Output Display Area

The calibrator output display area has an ON / OFF indicator at the top, the output signal in the center, and an amplitude and resolution status line at the bottom.

Illustration 165	g03372496
Calibrator Output Screen.

ON / OFF Indicator (1)

Displays either ON or OFF based on the selection made by using the On / Off function key. Also displays a helpful message about setting the Hz and resolution.

Output Signal (2)

Displays the current setting, in Hertz (HZ), for the output signal based on the selection made using the UP and DOWN Direction keys.

Note: The setting changes in increments of 1, 10, 100, or 1000 based on the current Resolution setting, described next. For example, if the Resolution setting is 1000, the Output Signal changes in increments of 1000.

Amplitude and Resolution Status (3)

Displays the channel name as [EXT. TRIGGER], displays the amplitude [0-3 V], and displays the current Resolution setting made by using the LEFT and RIGHT Direction keys.

Calibrator Output Function Keys

The bottom of the Calibrator Output screen displays two function keys that are used to control the calibrator output function.

Illustration 166	g03372516
Calibrator Output Screen Function Keys

On / Off (F1)

Press the On function key to start the output signal; press the Off function key to stop the output signal after starting it.

Print (F4)

Press the Print function key to print an image of the screen that is currently displayed.

Frequency Counter Input Function

Illustration 167	g03372556
(1) Frequency Counter Input Function.

The Frequency Counter Input function is used with the 8T-5112 Signal Input Cable to read an input signal through the audio jack on the back of the Multi-Tool.

The Frequency Counter Input function accepts input amplitudes from 0.1 V to 50 V and displays the input signals as digital Hertz (Hz) readings from 1 Hz to 100,000 Hz.

In addition, the function keys can be used to pause (hold) and resume readings, clear readings, and print an image of the screen.

Illustration 168	g06350515
Maintain adequate clearance around moving components and/or belts during testing. Moving components and/or belts can catch test equipment, loose clothing, or body parts, and cause damage, personal injury, or death.

Frequency Counter Input Screen

The Frequency Counter Input screen has a title bar at the top, a signal input display area in the middle, and three function keys at the bottom.

Title Bar

The top line of the screen displays the name of the function and an internal battery indicator.

Frequency Counter Input Display Area

The frequency counter input display area has a range indicator at the top, the input signal reading in the center, and a channel indicator and maximum, minimum, and difference values at the bottom.

Illustration 169	g03372787
Frequency Counter Input Screen

Range Indicator (1)

Displays 1-100000 Hz as the frequency range for the Frequency Counter Input function.

Input Signal (2)

Displays the input reading, in Hertz (HZ).

Channel Indicator (3)

Displays the channel name as [EXT. TRIGGER].

Max (Maximum), Min (Minimum), and Diff (Difference) Readings (4)

Displays the maximum, minimum, and difference readings since the last time they were reset by using the Clear function key.

Frequency Counter Input Function Keys

The bottom of the Frequency Counter Input screen displays three function keys that are used to control the frequency counter input function.

Illustration 170	g03372821
Frequency Counter Input Screen Function Keys.

Hold/Resume (F1)

Press the Hold function key to stop the readings; press the Resume function key to start the readings after holding them.

Clear (F2)

Press the Clear function key to reset the measured values. The current reading becomes the MIN and MAX values.

Print (F4)

Press the Print function key to print an image of the screen that is currently displayed.

Signal Generator Tools

The Signal Generator application works with the 285-0896 DIN Adapter and the 285-0899 Signal Generator Cable Group.

285-0896 DIN Adapter

The 285-0896 DIN Adapter is part of the 368-9910 Multi-Tool Group.

Illustration 171	g03372861

285-0899 Signal Generator Cable Group

Note: The 285-0899 Signal Generator Cable Group was previously included in the 8T-5200 Signal Generator / Counter Group.

Illustration 172	g03372869

Table 79

285-0899 Signal Generator Cable Group
Item	Part No	Description
1	8T-5198	Transmission Adapter Cable
2	8T-5197	Calibrator Cable and Adapter
3	8T-5112	Frequency Input Cable
4	6V-2198	Extension Cable, 5.5 m (18 ft)

Table 80

8T-5198 Transmission Adapter Cable Specifications
Application	Signal Generator Output function
DIM Connection	Channel 4 (Red), with 285-0896 DIN Adapter
Length	25.5 cm (10 in)

Table 81

8T-5197 Calibrator Cable and Adapter Specifications
Application	Calibrator Output function
DIM Connection	Audio Jack (back of DIM)
Length	1 m (3 ft)

Table 82

8T-5112 Frequency Input Cable Specifications
Application	Frequency Counter Input function
DIM Connection	Audio Jack (back of DIM)
Length	1 m (3 ft)

Signal Generator Basic Procedures

Signal Generator Output

The signal generator output is available on Channel 4 (color-code red) of the DIM.

Illustration 173	g03372937
(1) 285-0907 Diagnostic Interface Module (DIM). (2) 285-0896 5-Pin DIN Adapter. (3) 6V-2198 Extension Cable.

Connect the 285-0896 DIN Adapter to the DIM channel 4 port. Connect the 6V-2198 Extension Cable to the 285-0896 DIN Adapter. Connect the 8T-5198 Transmission Adapter Cable to the 6V-2198 Extension Cable and to the transmission electronic control unit.

Illustration 174	g03372961
Signal Generator Output Basic Steps

1. Use the LEFT and RIGHT Direction keys to adjust the frequency resolution in increments of 1, 10, 100, and 1000 Hz.

2. Use the Amplitude function key to adjust the signal output amplitude between two ranges of voltage (±4 or 0-8). Press the function key and then press the ENTER key to select the amplitude.

3. Use the On / Off function key to start and stop the signal output.

4. Use the UP and DOWN Direction keys to select the desired output frequency.

Calibrator Output

Connect the 8T-5197 Calibrator Cable and Adapter to the audio jack on the back of the Multi-Tool DIM.

Illustration 175	g03372984
DIM Audio Jack Location

Illustration 176	g03373003
Calibrator Output Basic Steps

1. Use the LEFT and RIGHT Direction keys to adjust the frequency resolution in increments of 1, 10, 100, and 1000 Hz.

2. Use the On / Off function key (F1) to start and stop the signal output.

3. Use the UP and DOWN Direction keys to select the desired output frequency.

Service Parts

Software License Cards are no longer used. Order of memory cards, 386-5908, to upgrade.

Multi Tools (Type 1), 285-0910, should be returned to the supplier for an upgrade. See Tool News, February 7, 2014.

Illustration 177	g03373020

Table 83

Item	Part No	Description
1	285-0908	Multi-Tool
2	285-0905	Internal Battery Power Pack
3	285-0907	Diagnostic Interface Module (DIM)
4	285-0896	5-Pin DIN Adapter
5	285-0906	Universal AC/DC Power Supply with Four International Power Cords
6	285-0904	Battery DC Power Cable Assembly
7	285-0903	Blowby Cable Assembly with Ground Clip
8	285-0902	Accessory Case (tools in photo not included)
9	202-8643	Accessory Case, 514.4 x 212.7 x 225.4 mm (20 1/4 x 8 3/4 x 8 7/8 in)
10	NETG5044 (Cancelled)	Blowby/Airflow Indicator Software License Card
11	NETG5045 (Cancelled)	Signal Generator Software License Card
12	NETG5046 (Cancelled)	Electronic Position Indicator Software License Card
13	NETG5047 (Cancelled)	Engine Timing Indicator Software License Card
14	NETG5049 (Cancelled)	Multitach 2 Software License Card
15	NETG5051 (Cancelled)	Digital Thermometer Software License Card
16	NETG5053 (Cancelled)	Fuel Flow Monitor Software License Card
17	381-8114	USB Flash Drive
18	386-5908	CF Memory

Note: Software License Cards are not required for 368-9910 Multi-Tool Phase 3, or Multi-Tools upgraded using 386-5908 Compact Flash Memory.

Manufacturers Limited Warranty

THIS WARRANTY IS EXPRESSLY LIMITED TO ORIGINAL RETAIL BUYERS OF THE MANUFACTURER'S ELECTRONIC DIAGNOSTIC TOOLS ("UNITS").

The Manufacturers Units are warranted against defects in materials and workmanship for three years (36 months) from date of delivery. Cables are warranted against defects in materials and workmanship for 90 days (3 months) from date of delivery. This warranty does not cover any Unit that has been abused, altered, used for a purpose other than that for which it was intended, or used in a manner inconsistent with instructions regarding use. The sole and exclusive remedy for any Unit found to be defective is repair or replacement, at the option of the Manufacturer. In no event shall the Manufacturer be liable for any direct, indirect, special, incidental, or consequential damages (including lost profit) whether based on warranty, contract, tort, or any other legal theory. The existence of a defect shall be determined by the Manufacturer in accordance with procedures established by the Manufacturer. No one is authorized to make any statement or representation altering the terms of this warranty.

Disclaimer

THE ABOVE WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Software

Unit software is proprietary, confidential information protected under copyright law. Users have no right in or title to Unit software other than a limited right of use revocable by the Manufacturer. Unit software may not be transferred or disclosed without the written consent of the Manufacturer. Unit software may not be copied except in ordinary backup procedures.

Order Information

Replacement and optional parts can be ordered from your Cat Parts Systems authorized dealer.

Technical Service

Repair Service

When sending your electronic product in for repair, please include the following information:

• company name

• contact name

• telephone number

• description of the problem

• proof-of-purchase for warranty repairs

• preferred method of payment for non-warranty repairs

For non-warranty repairs, payment can be made with Visa, Mastercard, or with approved credit terms. To receive a credit application, please fax your request to the Credit Department at 800-962-8734.

Send the unit to:

Bosch Service Solutions
Attn: Repair Department
655 Eisenhower Drive
Owatonna, MN 55060
USA
Phone: (800) 533-6127

Visit the Bosch Repair Track web link to complete and submit the form for proper authorization:

https://repairtrack.bosch-automotive.com/

(800) 344-4013

Declaration of Conformance

Illustration 178	g06366508

Illustration 179	g06366509

Illustration 180	g06366503