Field Crop Calibration
Check your Driving Speed:

1) Half fill the spray tank with water.

2) Mark out 100 m – note time to drive the distance.
nozzles-calibration.gif


3) Driving speed formula

nozzles-calibration-driving.gif 

 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
nozzles-calibration-all-formulas.gif

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
nozzles-calibration-formulas-output.gif

nozzles-calibration-change-nozzles.gif