Jamar RAC Geo II, User Manual

Page: 59 / 60

A-5
MENU — yellow button on the RAC which is used to access many of its
operation functions. Page 3-5.
Modular Distance Sensor (MDS)
– a device which, when installed, condi-
tions pulses from a vehicle’s speed sensor to the RAC. Page 4-4.
nonvolatile memory — the permanent memory of the RAC, it is where the
data and calibration number are stored. It will remain here for fifty years
or more unless changed. Page A-4.
pulses
— signals generated by a vehicle which, when conditioned through an
external sensor, are read by the RAC to calculate distance traveled. Page 4-6.
pulse rate — the frequency at which pulses are sent to the RAC from an
external sensor. They can vary from 4,000 to more than 100,000 per mile.
Page 4-8.
P-Dis (Pre-Distance)
— menu function of the RAC, it allows you to enter
a known distance into the RAC. Page 3-7.
RAC — Road Analysis Computer. Brand name for JAMAR’s distance
measuring instruments.
RACPro
— software available from JAMAR for use with the RAC Geo.
The program can analyze data downloaded from the RAC Geo. Page A-2.
SP (Speed)
— black button on the RAC, it allows you to show your speed.
Page 3-4.
Store — menu function of the RAC Geo, it is used for the memory store
procedure. Page 3-12.
Sub
— black button used to count down or subtract value from screen on
the DMI. Page 3-6.
Unit — gray button on the RAC, it selects the desired unit of measurement,
from miles to feet to meters. Page 3-4.