SPRAYMASTER 200
18
Example Calculation 1
The tractor is fitted with a single-magnet propshaft sensor. The measured
distance for 10 rotations of the propshaft is 17'-6".
1. Convert the distance to inches :- (17' x 12")+6" = 210"
2. Divide by 10 (magnet pulses) to give the calibration factor:- 210" / 10 = 21"
3. Programme the factor '021.0' as described overleaf.
Example Calculation 2
A vehicle with row crop wheels is fitted with 4 magnets. It is found to move
144 feet for 10 rotations of the sensed wheel.
Converting the distance to inches and dividing by 40 gives a calibration
factor of (144' x 12") / 40 =43.2".
Manually setting the Factor
With channel 1 selected, the existing speed factor is displayed. Press and
hold the key, and adjust the factor using the '+' and '-' keys.