P/N 016-0171-493 Rev. I 191
Calculating the Calibration Values
Band Spraying Adjustment
To calculate the adjusted applied rate for band spraying applications, use the following formula:
Where BR = the Broadcast Rate, BW = the band width, S = the spacing between the tips and
AR = the Adjusted Rate for band spraying.
For Example:
If the Broadcast Rate is 20 GPA [200 L/ha], the band width is 14 inches [40 cm] and the tip spacing is
40 inches [100 cm]:
or
Therefore, the adjusted rate is 7 gallons per acre or 80 liters per hectare.
Meter Cal
The flow meter calibration number can be found on the tag attached to each flow meter. Copy the information
from the tag for future reference as the tags may fade or be lost during equipment operation.
Note: Refer to the Verifying Flow Rate Limits section on page 196 to verify that the desired flow rate is
within the range specified for the installed flow meter.
Flow Meter Service and Maintenance
Periodic maintenance of the flow meter may help to extend the effective service life of the flow meter or internal
components. If the flow meter does not register the applied product volume properly, the following steps will be
necessary to service the flow meter:
The following procedure should be performed more frequently if the flow meter is used with harsh chemicals or
in anhydrous ammonia.
1. Remove the flow meter from the application system and flush with clean water.
WARNING
Exposure to agricultural chemicals may be
harmful or fatal. Thoroughly bleed and flush the
application system lines prior to disassembling
fittings, hoses and the flow meter.
If the flow meter is used for applying anhydrous
ammonia, bleed the nurse tank hose and flush
the system with water before maintaining the
flow meter.
BR BW×
S
---------------------- -
AR=
20 14×
40
------------------
7=
200[]40[]×
100[]
------------------------------ -
80[]=
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