Great Plains 3N-4020 Operator Manual User Manual
Page 46
42
3N-4010F/3N-4010HDF/3N-4020F
Great Plains Manufacturing, Inc.
196-359M
2013-10-29
Refer to Figure 42
13. Press Function button until the Calibration window
appears as shown.
14. Press
⇑
arrow button to enter calibration mode.
Refer to Figure 43
15. This is the first window that appears in Calibration
mode. Press FUNCTION button to accept, or
⇑
but-
ton to change units of measure.
ENGLISH (U.S. Customary) units are:
pounds/acre, pounds, feet and mph
METRIC units are:
kg/hectare, kilograms, meters and kph
If you change units of measure for rate calibration, it
also changes units for speed calibration.
Refer to Figure 44
Note: When units of measure is changed, all previous
and subsequent values entered or computed are
assumed to be in the new units, but their numeric
values are not converted.
For example, if you entered a rate of 50.0 (intending
lbs/ac) at step 9, and switched to metric mode at
step 15, the seed rate is left at 50.0 and taken to be
50.0 kg/ha during any calibration and planting.
Which changing units of measure, be sure to
re-check all other settings, and convert any as re-
quired.
Figure 42
Initiate Sample Calibration
28251
Figure 43
U.S. Customary Units
28252
Figure 44
Metric Units
28248