Haltech IQ3 Data Logger Dash - Manual (Page 39)

IQ3 Data Logger Dash Installation Manual
39
Slip Calculation
The Slip Calculation provides the ability to display slip
data based on propeller vs. speed or tire vs. speed for
use with wheel driven vehicles. The slip calculation can
only be used for display purposes. It is not recorded on
microSD card. If you need to record a slip calculation,
you can create one via the DataLink software math
channel feature.
RPM Channel to Calculate Slip: Typically Engine RPM or
the rpm channel that provides final drive to the
propeller or wheels.
Speed Channel to Calculate Slip: The sensor channel that provides vehicle speed, which is GPS
MPH in most instances.
Distance of Travel per Revolution: The propeller pitch in inches or centimeter (or drive wheel
circumference).
Gear Ratio: The final drive ratio between the RPM input and the wheel or propeller. For
vehicles that have more than one set of gearing between the engine and wheel or propeller, it
will be necessary to calculate a final drive ratio.
Final gear drive formula for wheel driven vehicles:
Tire Circumference / Drive Ratio = Final Drive Ratio
This number can be entered in the Gear Ratio input area.