User`s guide

Configuring the DVR
700-0035 R004 3–17
3.2.5.1. Calibrating Speed
When calibrating speed, it is best to use known road markers to determine a mile
as reading the odometer may introduce errors.
To calibrate speed:
1. Press the
CH4/down arrow button to select the Calibrate Speed option and
press the
ENTER button.
Figure 3-9 appears.
GPS Display The TR4 Plus DVR can display and
record GPS data from an optional
external GPS receiver.
If the GPS Display option is set to
ON,
the latitude and longitude of the vehicle
location and the vehicle speed are
displayed on the screen (see Figure 3-1
on page 3–2). The speed from the GPS
will override the settings from the speed
pulse count input.
ON
OFF
OFF
Speed Pulse Count The TR4 Plus DVR can record vehicle
speed by counting the number of pulses
received either from a vehicle speed
sensor or a vehicle Transmission
Control Module (
TCM). The DVR must
first be calibrated to the vehicle’s speed
signal by driving for one mile
(kilometer) in Calibration Mode.
2500 to 150,000 003000
Calibrate Speed For more information, see “Calibrating Speed”.
Table 3-12 Signal/Speed configuration items
Menu Item Description Values Default
Figure 3-9 Calibrate Speed menu