APPENDIX
A
: 169
APPENDIX A
CALCULATING THE
CALIBRATION VALUES
SPEED CAL
Raven industries recommends the following values for the initial speed cal:
These values are usually a good starting point and will generally yield adequate results; however, the speed cal
should still be refined for each vehicle.
NOTE: The GPS speed over CANbus feature is only available with specific Raven speed sense nodes. This
feature utilizes NMEA speed over ground data transmitted over the CAN network which eliminates
the need for a separate, external speed sensor.
Refer to the following procedures to adjust or tune the speed calibration value, or speed cal, for the specific speed
sensor used with the ROS device.
Sensor Type
Setting
Used with
Recommended Initial Speed
Cal
English Metric
Wheel
Wheel Magnets 1000 254
Speedometer Drive Speed
Sensor
612 155
Radar Raven Radar 598 152
GPS
External Raven DGPS
Receiver
785 199
Internal DGPS Receiver 812 206
GPS Speed over CANbus 1000 1000
NOTICE
When using the GPS speed over CANbus feature,
no refining or adjustment is necessary or
recommended to the speed cal value. Losing GPS
signal for more than a second will also result in
loss of the CAN speed signal which may affect
product application in progress.
To Next Page
Loading...
