Great Plains 3N-4025P Operator Manual - Manual (Page 57)

Great Plains Manufacturing, Inc. Table of Contents Index Hydraulic Drive Operation 53
2014-01-29 Table of Contents Index 196-538M
Speed Calibration
In order to fine-tune the default speed calculation or to
convert to radar speed signal, the controller may be
calibrated as follows:
1. Set two flags 400 ft.apart (100 meters if in metric
mode).
Refer to Figure 70
2.
To calibrate the Controller for speed, press the
FUNCTION button until the screen at right appears.
Refer to Figure 71
3.
Press the ⇑ Up arrow button to initiate new speed
calibration routine.
Press the
⇓ Down arrow button to restore factory
default setting.
Refer to Figure 72
4.
This is the first window that appears in Speed
Calibration mode. Press FUNCTION button to
accept, or
⇑ button to change units of measure.
ENGLISH (U.S. Customary) speed units are:
mph (miles per hour)
METRIC speed units are:
kph (kilometers per hour)
If you change units of measure for speed calibration,
it also changes units for seed rate. Numeric values
entered or previously computed are not converted
a
.
Be sure to review all screens before planting.
Figure 70
Speed Calibration Mode
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Figure 71
Initiate Speed Calibration
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a. Note that this is different from how the seed monitor operates when changing modes. See page 18.
Figure 72
U.S. Customary Units
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