7 - Menu 3 Calibration
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Menu 3.1.1.1 Constant
The theoretical speed constant, pulses per unit (PPU), is the distance in
metre on the circumference of the wheel between holes (A) (or
protrusions / magnets (B)) that the speed sensor records.
Menu 3.1.1.2.1 Practical
Practical calibration of speed is done by driving a measured distance
and correcting the display so that the actual and the calculated
distances are the same. Calibration should take place in the field with a
half full tank and normal working tyre pressure in order to obtain the
wheel’s real “working radius”.
Method
1. Measure a distance not less than 75 metres.
2. Park the tractor at the start of the measured distance.
3. Press . When zero distance [ 0 m ] shows, drive the distance.
4. Press .
5. Correct the distance shown on the display with the or to
read the actual distance.
6. Press to confirm.
CONSTANT
XX.XXX PPU
3.1.1.1
PRACTICAL
Measured XXX m
3.1.1.2
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