Seed Hawk Raven 2012 - Manual (Page 141)

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Manual No. 016-3001-003 129
Advanced Settings and Features
Node Settings Screen (Page 1)
Touch within the Feature Settings area to view the first screen of settings for the selected product node or
control channel.
Note:
Touch the Next button to access additional alarm and feature settings for the selected product
node or control channel.
Dual Flow %. The dual flow percent feature is only used when controlling a chemical injection or Granular 3
application.
Note:
The default value for the dual flow percent in either a chemical injection or dual bed system is 50.
For applications using a CAN motor control node to control an injected chemical, the dual flow percent value
sets the tolerance for error allowed between the flow switch and pump encoder before a flow alarm will be
activated. Enter a value between 0 and 100 for the allowable tolerance between the switch and encoder. For
example, set this value to 100 to disable the dual flow alarm or 0 to display an error any time the flow switch
and pump encoder do not match. The flow switch alarm activates when out of tolerance conditions have been
met for at least five seconds.
Note:
The dual flow percent is replaced with a PVD Error Cal value when operating a Raven Sidekick
Pro™. Refer to the Sidekick Pro Installation and Operation Manual for more information about
operation with the Viper Pro field computer.
When controlling a dual bed system in Gran 3 mode, the dual flow percent sets the tolerance between the belt
encoder readings before the dual flow alarm is activated. This alarm may be used to indicate that the belts are
moving at different rates or one belt is not moving. Enter a value 100 to disable the dual flow percent alarm or
0 to display an error any time the belt encoders do not match. The dual flow alarm activates when out of
tolerance conditions have been met for at least five seconds.
Off Rate %. The off rate percent value sets the allowable difference between the target and actual product
application rates. If a non-zero value is entered for this setting and the difference between target and actual
rate exceeds the set value for longer than five seconds, the Viper Pro will display an off rate alarm. Enter a
value of zero to disable the off rate alarm.
Low Limit. The low limit value sets the lowest volume per minute acceptable during application of a product. If
the flow rate drops below the low limit value, the field computer will stop closing the control valve and display a
flow alarm.
The field computer automatically adjusts the low limit value for active boom or implement sections. For
example, if a low limit of 4 is entered but only half of the total boom width is currently applying product, the
Viper Pro will only display a flow alarm if the volume per minute drops below 2.