Chapter 4
54 Viper Pro Installation & Operation Manual
Vehicle Heading and Speed
The Viper Pro displays the current GPS course over ground, in compass degrees, and the reported speed from
a ground speed sensor or GPS receiver.
Note: A heading of 000° indicates magnetic north.
The Viper Pro speed display indicates both the detected vehicle speed as well as the source and use of the
displayed speed.
If ‘CAN’ is displayed in the speed area, the Viper Pro is registering speed from the Raven CANbus control
system. The Viper Pro is also using the displayed speed value for speed compensated product rate control.
If ‘GPS’ is displayed in the speed area, the Viper Pro is monitoring speed from a GPS receiver (e.g. an Invicta
or Phoenix series receiver). ‘GPS’ will be displayed when the Viper Pro is connected to an optional Raven
serial control console. In this instance, the speed displayed on the Viper Pro is for reference only and is not
used to adjust product rate. Verify that the speed reading on the serial controller is accurate.
Review the Speed Sensor Type and Cal section on page 39 if the speed reported by the Viper Pro does not
approximate the actual vehicle speed.
Dual Pressure Displays
Note: Pressure readings are displayed for operator display only and do not affect product rate control.
Pressures monitored via electronic pressure transducers are displayed as P1 (Pressure Transducer 1) and P2
(Pressure Transducer 2) on the Viper Pro.
The Viper Pro will display:
• All dashes if no pressure transducer is detected by the product node.
• CAL if a pressure transducer is detected but has not been calibrated.
Note: Refer to the Pressure Transducer section on page 245 for details on calibrating the pressure
displays on the Viper Pro.
Pump RPM or Fan Speed
The RPM of a pump or fan may be displayed on the main screen. Contact a local Raven dealer for additional
assistance with monitoring various system components during field operations.
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