Raven OmniSeed Viper Pro, Calibration & Operation Manual

Page: 169 / 308

Manual No. 016-3001-015 Rev. C 157
Advanced Settings and Features
7
Rate Cal. The rate cal value is the target rate to which the system will adjust while applying the corresponding
product. Review the Rate Cal(s) section on page 42 for more information about the rate cal setting.
Note:
Refer to Appendix B, Calculating the Calibration Values, to verify the flow rate limits for the flow
meter installed in the system. Contact a local Raven or sprayer supply dealer for additional
information or assistance.
Rate Bump (+/-). The rate bump feature allows the equipment operator to quickly adjust the rate of product
application during a job. Enter the value by which the target rate will be increased or decreased when the rate
bump buttons are selected on the Application Control prompt.
See the Application Rates Area section on page 102 for more information about the Application Rates Area on
the main screen and using the rate bump feature during a field application.
Meter Cal or Density. Depending upon the selected application type, either the meter cal or product density
setting will be displayed. See the Application and Control Valve Type(s) section on page 40 for configuring the
type of product application or the Meter Cal or Product Density section on page 260 for more information on
calibrating the meter cal or density values.
•
For liquid product applications, the meter cal must be entered to calibrate the Viper Pro to the specific flow
meter used to measure the flow of product going to the booms. The meter cal value is typically found on the
flow meter.
•
When controlling spinner or fan speed, the meter cal is the number of pulses detected per rotation of the
spinner or fan multiplied by 10.
Note:
A meter cal value is required to control spinner or fan speed. A fan cal value will only be used to
monitor fan speeds.
•
For dry or granular products, enter the density or weight of 1 cubic foot of product. This value is the density
of a dry or granular product entered for rate control. Refer to the
Meter Cal or Product Density section on
page 260. Refer to the Raven Viper Pro Installation and Operation Manual for more information on setting
and adjusting the product density during a granular product application.
Spreader. The current spreader constant value used by the Viper Pro control system. Refer to the Raven Viper
Pro Installation and Operation Manual for details on adjusting the spreader constant for the gate height or belt
travel measurements and adjustments.
Note:
Enter a value of zero for the spreader constant when applying liquid products.
Node Control Settings Screen (Page 2)
Touch within the Product Control Settings area and then select the Next button on the first Node Settings
screen to access the following settings.