Tachometer (Digital)
Usage:
(1) Magnetic pickup terminals.
(2) Calibration control (under plug):
Tighten plug to a torque of ... 0.6 ± 0.1 N·m (5 ± 1 lb in)
See Calibration Chart for settings.
(3) Tighten two nuts to a torque of ... 0.9 ± 0.1 N·m (8 ± 1 lb in)
General Specifications:
(a) Operating temperature range ... -20 to +85°C (-4 to 185°F)
(b) Tachometer must be accurate within ... ± .5 percent
(c) Input frequency range ... 75 to 9000 Hz
(d) Time required for display update
Maximum ... 1.0 second
Minimum ... 0.25 seconds
Caterpillar Information System:
3408C & 3412C INDUSTRIAL ENGINES Magnetic Pickup
3408C & 3412C INDUSTRIAL ENGINES Stub Shaft
3408C & 3412C INDUSTRIAL ENGINES Rear Power Take-Off Clutch
3408C & 3412C INDUSTRIAL ENGINES Auxiliary Drive Group
3408C & 3412C INDUSTRIAL ENGINES Damper And Pulley Group
3408C & 3412C INDUSTRIAL ENGINES Flywheel
3408C & 3412C INDUSTRIAL ENGINES Flywheel Housing
3408C & 3412C INDUSTRIAL ENGINES Pistons And Rings
3408C & 3412C INDUSTRIAL ENGINES Connecting Rods
3408C & 3412C INDUSTRIAL ENGINES Crankshaft Rear Gear
3408C & 3412C INDUSTRIAL ENGINES Connecting Rod And Main Bearing Journals
3408C & 3412C INDUSTRIAL ENGINES Crankshaft
3408C & 3412C INDUSTRIAL ENGINES Air Compressor
3408C & 3412C INDUSTRIAL ENGINES Alternator Mounting Group
3408C & 3412C INDUSTRIAL ENGINES Alternators And Regulators
3408C & 3412C INDUSTRIAL ENGINES Starting Motors
3408C & 3412C INDUSTRIAL ENGINES Sending Units
3408C & 3412C INDUSTRIAL ENGINES Switches
3408C & 3412C INDUSTRIAL ENGINES Gauges
3408C & 3412C INDUSTRIAL ENGINES Shutoff Groups
3408C & 3412C INDUSTRIAL ENGINES Systems Operation
3408C & 3412C INDUSTRIAL ENGINES Testing And Adjusting
3408C & 3412C INDUSTRIAL ENGINES Aftercooler Core
3408C & 3412C INDUSTRIAL ENGINES Fuel Ratio Control