Chapter 5
88 Viper Pro Installation & Operation Manual
Target Rates and Rate Bump. To change the target rate, product density or spreader constant for a product,
touch the product node or control channel number from the Application Control prompt. Touch the desired
value to modify and use the on-screen keypad to enter a new value. Touch the OK button to save the new
value and return to the Application Control prompt.
If a non-zero rate bump (+/-) value has been programmed, touch the rate bump buttons to increase or
decrease the target rate by the rate bump value. Use the rate bump buttons in manual mode to manually open
or close the control valve for the corresponding product or channel. Refer to the Product Control Settings Area
section on page 138 for more information about the rate bump feature.
Default Rate. If the Viper Pro will reference a prescription (Rx) map for product application, touch the Default
Rate button to display the Rx Map Default Value screen. Touch the default value field for the desired product
and use the on-screen keypad to enter a default value. Touch OK to save the new value and return to the
Application Control prompt.
Note: The default value only applies to zones or areas with no prescription information and does not
affect areas where rate information has been entered. If the prescription map contains zero rate
zones, the field computer will continue to reference the prescription map for rate information in that
area.
Tabs
The tabs displayed along the right side of the screen allow the vehicle operator to select the information
displayed in the map area. The tabs may be used during field operations to toggle coverage, scouting or
guidance information at any time and can be used to help the vehicle operator manage the various operations
and systems during an application.
Note: When a job is not currently in progress on the Viper Pro field computer, the main tab will display all
accessible information. The other tabs will be available only when a job is in progress. Some tabs
may not be available unless an optional feature or hardware has been purchased and installed.
Main Tab
The main tab is only available when a job is not in progress on the Viper Pro. This tab displays county street
maps (if available) to help the operator locate fields or areas for product application and any saved field
boundary features currently stored on the Viper Pro internal memory.