PCS D200 Dash Logger User Guide
Page 24
Ph: 804.227.3023
10511 Old Ridge Rd. Ashland, VA 23005
v 2.0
6.5.1 Disabled/Raw Frequency
This function will display the input frequency as hertz (Hz) or cycles per second.
6.5.2 RPM
The RPM function uses the input frequency to display revolutions per minute. A tachometer signal from an engine is
typically half the number of cylinders per revolution. For example, a 6-cylinder engine tachometer signal will have 3
pulses per engine revolution. If a standard tachometer signal is connected to the dash, enter the number of cylinders of
the engine and the dash will calculate the engine RPM accordingly. If the tachometer signal is not a standard tachometer
signal the number of cylinders can be a number with a decimal to fi ne tune the RPM reading. RPM can be displayed as
a big gauge with ranges of 4,000, 8,000, 10,000, and 20,000.
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