Speed Sensor Type And Cal - Raven Viper Pro Installation & Operation Manual

Speed Sensor Type and Cal

To automatically adjust the rate of applied products for vehicle speed, the field computer must be properly
calibrated for the sensor type providing speed information.
Touch within the Product Control area at the bottom of the main screen.
1.
Touch within the Miscellaneous area on the CAN Controller Status screen.
2.
Select Radar or Wheel for the type of speed sensor connected to the Viper Pro.
3.
Use the Wheel option if a magnetic type, such as a wheel or drive shaft magnet, system is used with the
Viper Pro. Set the speed sensor setting to the Radar option if a radar or GPS unit is sending speed
information to the Viper Pro.
Touch the Speed Cal value and use the on-screen keypad to enter the new value.
4.
Raven recommends the following speed calibration values for initial system setup.
Sensor Type
Radar/GPS
Wheel
These values are good starting points and generally yield adequate results, however, the speed cal should
be refined for each specific vehicle and speed sense system. See Appendix B, Calculating the Calibration
Values, for instructions on refining the speed cal value.
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.
If another source will be used to detect vehicle speed, touch the Calibration Assistance button
and follow the on-screen instructions. Refer to Appendix B, Calculating the Calibration Values for
additional information about the calibration assistance procedure. The procedure outlined in Using
the Calibration Assistance section on page 226, should also be performed to refine or verify the
initial value used with a speed sensor not listed in the above table.
Touch OK to save the currently displayed settings and return to the CAN Controller Status screen.
5.
Manual No. 016-0171-122 Rev. I
Used with
External Raven GPS
Receiver
GPS Speed over CANbus
Raven Radar
Wheel Magnets
Speedometer Drive Speed
Sensor
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.
Initial Set Up and Navigation
US Metric
785 199
1000 254
598 152
1000 254
612 155
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