Great Plains 3N-4025P Operator Manual - Manual (Page 48)

44 3N-40P Table of Contents Index Great Plains Manufacturing, Inc.
196-538M Table of Contents Index 2014-01-29
Refer to Figure 45
12. Press Function button until the Calibration window
appears as shown.
13. Press ⇑ arrow button to enter calibration mode.
Refer to Figure 46
14. This is the first window that appears in Calibration
mode. Press FUNCTION button to accept, or
⇑ button 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 47
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 8, and switched to metric mode at
step 14, 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
required.
Figure 45
Initiate Sample Calibration
28251
Figure 46
U.S. Customary Units
28252
Figure 47
Metric Units
28248