Spreading operation B
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B.6 Calibration
For precise control of the application rate, we recommend running a new calibra-
tion test every time you change fertiliser material types.
Carry out calibration:
Before spreading for the first time.
If the fertiliser quality has changed significantly (moisture, high dust content,
cracked grain).
If a new fertiliser type is used.
The calibration must be conducted with engaged PTO at a standstill or during
travel over a test track.
B.6.1 Determining the nominal output quantity
Calculate the nominal output quantity before starting the calibration test.
Calculating the exact forward speed
The exact forward speed must be known to calculate the nominal output volume.
1. With a semi-filled machine, drive a distance of 100 m on the field.
2. Stop the time required for this.
3. The exact forward speed is indicated at the scale of the calibration test calcu-
lator.
Figure 7: Scale for calculating the exact forward speed
NOTICE
The machine of the MEMC version automatically regulates the application rate
for each side. Therefore, a calibration test is not required.
NOTICE
Execute the calibration test for the machine versions Q/W at the operating unit.
The calibration test is described in a separate operator’s manual for the operat-
ing unit. This operator’s manual is an integral part of the operating unit.
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