Great Plains 3N-4025P Operator Manual - Manual (Page 103)

4/23/2010 196-286M
101 Veris Drive Operating Instructions
Calibration - Speed
In order for the controller to meter the proper
amount of material, it must have an accurate field
speed input. Speed may be supplied by radar or
by wheel pickup sensor. For the Contorller to con-
vert the pulses that it is receiving from the speed
input into accurate speed, it must be calibrated.
Refer to Figure 23
To calibrate the controller for speed, press the
Function key until the screen shown in Figure 23
appears.
Refer to Figure 24
Press the Up arrow key to initiate new speed cali-
bration routine. Press the Down arrow key to
restore factory default settings.
Refer to Figure 25
Set two flags 400’ apart (100 meters if in metric
mode). Begin driving at a normal field speed;
when the tractor passes the first flag, press En-
gage key.
Refer to Figure 26
The display will show the distance traveled.
22788
22789
22790
22791
Figure 23
Figure 24
Figure 25
Figure 26