User manual

Digital BUS-WATCH®
33
Radio Engineering Industries, Inc.
640333
Rev 0 -- 1/1/2006
Calibration Menu Screen Shot
Figure 26
Speedometer Calibration Screen
Because speedometers can vary greatly among bus manufacturers, the Digital
BUS-WATCH® IV has the ability to calibrate its own speedometer to that of the
bus. Follow this procedure to calibrate the speedometer:
• Drive the bus at a known and constant speed, such as 30 mph.
• Bring up the Speedometer Calibration Screen. The screen will display what the
Digital BUS-WATCH® IV system perceives as the vehicle's speed.
• Use the UP and DOWN arrow keys to adjust the displayed speed to match that
the vehicle's speedometer. This might require many key presses.
• Try using the down arrow button first, as this will give a more responsive display.
• When the speeds match, press EXIT to save the calibration and return to the
previous menu. The displayed speed will now match that of the vehicle.
Speedometer Calibration Page Screen Shot
Figure 27