Hardi HC 2500 Series Instruction Book page 20

Nozzle method
During practical flow calibration the individual nozzle output on the
display is compared to the actual individual nozzle output.
The output displayed is corrected to read the actual output. For correct
calibration it is necessary to know the number of nozzles on the boom.
Method
1. The number of nozzles is set with the arrow key to read the actual
number of nozzles to spray. Press the menu key to continue.
2. Open all boom sections.
3. Turn the main ON/OFF valve on.
The display unit will then show the individual nozzle output per minute.
4. Using a HARDI calibration jug, check the actual nozzle output
per minute. It is recommended that an average of several nozzles
be taken.
5. Correct the output shown on the display with the arrow key to read
the average output measured with the calibration jug.
The display will briefly show the new calibration value PPU when
returning to the main display picture.
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F L O W C A L I B R AT I O N
N o z z l e m e t h o d
N O Z Z L E M E T H O D
T o t a l N o z z l e s x x x
F l o w x x . x x L / m i n