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10-19
A2677 Rev 1.5
X20 Sprayer Reference Manual
Flow Calibration for Balanced (Hardi) Valves
Because the Balanced valve system is used on Hardi Sprayers,
the normal calibration procedure cannot be used. The following
procedure is required for Balanced valve systems but it can also be
used on "normal" valve systems.
Select 1. Manual on the Sprayer Switchbox
Turn the pump and all Boom Sections on 2.
Turn the Master ON 3.
The Sprayer should start spraying
Adjust the pressure to the normal spraying pressure around 4.
the middle of the nozzle range
Ensure 5. Display Volume/Nozzle is selected on the Flow
window (page 10-7)
The Flow Readout units will be volume (L or Gal)/noz.
The value displayed in the Flow readout window will be
volume/nozzle/minute.
For this test to be accurate all nozzles on the boom spray
must be the same type and the nozzles must be in good
condition (not worn). The Flow Meter should also be in good
condition for this test to be accurate.
Place a jug under a nozzle and time for 1 minute 6.
Measure the volume of liquid coming out of the nozzle, this 7.
is the "Actual" amount
Write the "Actual" value down8.