Raven AccuFlow Vortex, Installation And Operation Manual, Page: 49 / 98

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AccuFlow™ Vortex System (Non-Pump) Calibration and Operation: Programming NH3 Rate Control 45
ACCUFLOW™ VORTEX SYSTEM (NON-PUMP) CALIBRATION AND OPERATION
CALCULATING THE REQUIRED CAPACITY
To ensure that the desired application rate (in pounds [kilograms] of actual nitrogen per minute) does not exceed
the AccuFlow system capacity, the required capacity of the application must be verified.
Using the following formula to calculate the required capacity:
Target Application Rate x Target Application Speed x Implement Width = lbs[kg](N)/min
5940[60,000] (EQ 6)
NOTE: Be sure to enter the target application rate in pounds [kilograms] of nitrogen per acre [hectare] and
the implement width as calculated in the “Entering Boom Cal” section on page 43.
FOR EXAMPLE:
(English Units) Given a target application rate of 150 lbs(N)/acre at an average of 5.5 mph and a calculated
implement width of 480 inches, the required capacity is:
150 x 5.5 x 480 = 66.6 lbs(N)/min
5940 .......................... (EQ 7)
(SI Units) Given a target application rate of 68 kg(N)/ha at an average of 10 km/hr and a calculated implement
width of 1220 centimeters, the required capacity is:
68 x 10 x 1220 = 13.8 kg(N)/min
60,000 ........................ (EQ 8)
The maximum capacities of the various AccuFlow systems are shown below: Contact a local Raven dealer if the
maximum rate is exceeded.
a. Single tank Vortex: 126 lbN/min [57 kgN/min].
b. Dual tank/dual hose Vortex: 210 lbN/min [95 kgN/min].
SYSTEM CAPACITY CHART
NOTE: This figure assumes all recommended plumbing practices have been followed. Failure to follow to
those practices will limit the system capacity to lower values.
The following figure illustrates the capacity of the AccuFlow system in various configurations. Refer to this chart as
part of the calculation for required capacity and when troubleshooting the AccuFlow system.