Great Plains ADC2250 Operator Manual - Manual (Page 51)

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Section 6 Options
7/28/10 Model 2250 Air Drill Cart 167-033M
Great Plains Mfg., Inc.
and/or fertilizer falling out of the bin meter (sack, bucket,
etc.). Keep the fan off, then pull forward an accurately
known distance. The fan pressure switch must be jum-
pered across.
When the rotary switch is set to AREA, pressing the
ACK/MODE button for five seconds will enable the appli-
cation rate mode. The display will show “0r00” which is a
measure of the application area precise to 1/100 of an
acre. (If metric units have been selected, the “r” will flash
to indicate hectares.)
Driving the implement will cause the application area to be
incremented, during which time the applied material
should be collected. When a large enough material sam-
ple has been collected, the implement should be stopped
the sample weighed. The weight is entered into the moni-
tor and the rate is calculated.