Check your Driving Speed:
1) Half fill the spray tank with water.
2) Mark out 100 m – note time to drive the distance.

3) Driving speed formula
Example:If it takes 50 seconds to drive 100 metres then the spraying speed is 7.2 km/hour.
Select Volume Rate, Nozzle and Pressure
1) For easy selection of nozzles and pressure, use the HARDI calibration disk
Volume rate 250 l/ha
Driving speed 7.5 km/h
Nozzle ISO F-04-110
Pressure 2.90 bar
100 m Nozzle flow 1.56 l/min
ALL CALIBRATION FORMULAS

Check Nozzle Output
1) If actual output is not equal to desired output: Readjust pressure (alternatively: change nozzle or driving speed)
2) If output has increased more than 10% from table value: Change all nozzles.
3) Nozzle output formula

