Configuring the job computer
Calibrating the flow meter
7
⇨ The “AUX controls” screen appears.
2. Configure parameter.
Calibrating the flow meter
Because the number of impulses per liter can change during the lifespan of a flow meter, calibration
must be carried out in the following cases:
▪ Prior to initial start-up.
▪ At the start of each season.
▪ When you detect deviations between the quantity actually sprayed and the quantity displayed.
▪ When you have replaced or repaired the flow meter.
There are two ways you can calibrate the flow meter:
▪ The tank method – it is time-consuming, but precise.
▪ The nozzle method – it is not as precise as the tank method, but is less time-consuming.
If the calibration is imprecise, the calculations will be very inaccurate and the application imprecise.
◦ Calibrate the flow meter very precisely.
Calibrating the flow meter with the tank method
With the tank method, a large quantity of water will be applied from the tank over a specific time.
The flow meter measures the impulses during this time.
After the application, you must enter the quantity of water that has been applied.
The computer calculates the number of impulses per litre.
Spray liquid or spray liquid residues
Danger of poisoning or chemical burning
◦ Clean the spray liquid tank thoroughly prior to calibration. The sprayer must be free of spray
liquids or spray liquid residues.
◦ Use only clear water during calibration.
◦ Wear required protective equipment.
All sections are selected.
Manual mode is activated (the
icon appears in the “Spray data” area of the work screen).
The tank is filled with clear water. For this, you need several hundred litres of clear water.
You have the option of weighing the entire trailer or measuring the volume of water applied with
another method.
Pump is switched on.
1. Ensure that all prerequisites have been fulfilled.
When should you
calibrate?
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