Jamar RAC-100, Manual

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RAC-100 and 200 User’s Manual
Before You Begin
Note: The following instructions are for installing a RAC with a Modular
Distance Sensor. If you are installing a different type of sensor, refer to the
instructions that came with the sensor itself.
The JAMAR RAC-100 and 200 distance measuring instruments (DMI) are
very reliable instruments. However, there can be some external variables
that could affect proper operation and the ability to accurately measure dis-
tance traveled. By observing a few simple precautions you will be able to
eliminate potential problems.
• Do not install wires near any object that could cause stray pulses to
be picked up, such as the alternator, spark plugs or engine coil.
• Do not install the wires or sensor near any objects that will get hot,
such as the manifold. The installation wires or sensor can melt if they
are too close to a heat source.
• Do not install wires near any objects that could vibrate and cut the
wires.
• Tire pressure should be the maximum suggested by the tire manufac-
turer, typically 32-35 PSI cold. The tire should have ample tread depth.
Steel belted radial tires are highly recommended.
• Drive the vehicle 3 to 5 miles (depending on climate) to warm the tires
up to normal operating temperatures prior to calibrating your DMI.
Refer to Chapter 3, Calibration for more detailed instructions.
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