Chapter 6
44
AccuFlow™ and AccuFlow HP™ Installation & Operation Manual
Programming NH
3
Rate Control
Adjusting the Boom Cal
The boom cal for the AccuFlow system can be calculated with the following formula:
Number of Applicator Knives x Spacing in inches [centimeters] = Implement Width
(EQ 1)
For Example:
If the implement has 16 knives spaced 30 inches apart, the calculated implement width is equal to 480
inches. Enter 480 as the boom cal on the control console.
Adjusting the Speed Cal
Calculate the speed cal according to the console’s
Installation and Operation
manual. No adjustments to the
speed cal are required for the AccuFlow system.
Adjusting the Meter Cal
Locate the meter cal value printed on the tag attached to the AccuFlow™ flow meter. This value will be referred
to as the “original meter cal.” The original meter cal can be adjusted to display application rates in either
pounds of actual nitrogen per acre (lbs(N)/acre), or kilograms of actual nitrogen per hectare (kg(N)/ha). If the
meter cal label displays an NH
3
calibration value, the meter cal does not need to be adjusted.
Note:
All volumes will be displayed in pounds [kilograms] of actual nitrogen. To properly control the
application of anhydrous ammonia, enter the target application rates as pounds [kilograms] of
actual nitrogen per acre [hectare] or lbs(N)/acre [kg(N)/ha].
Use the following formulas to adjust the original meter cal for the desired display preferences:
(lbs(N)/acre) Original Meter Cal / 4.22 = Adjusted Meter Cal
(EQ 2)
(kg(N)/ha) Original Meter Cal / [0.506] = Adjusted Meter Cal
(EQ 3)
Round the calculated value to the nearest 3 digit whole number and enter the value as the meter cal on the
Raven console.
For Example:
Given an original meter cal of 720 [190].
(lbs(N)/acre) 720 / 4.22 = 170.62
(EQ 4)
(kg(N)/ha) 190 / [0.506] = 375.494
(EQ 5)
From the calculated values, round the adjusted meter cal value to 171 [375] and enter this value on the
Raven console.
Содержание AccuFlow
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