Great Plains YP4025F-1670 Material Rate - Manual (Page 29)

Great Plains Manufacturing, Inc. Contents Metric Rates Volumetric Meter Planting 27
2014-03-13 Contents Metric Rates 401-571B
8. Raise the planter, and install the lift cylinder
transport locks. Leave the tractor hydraulic system
active.
9. Activate the hydraulic drive circuit. Command the
planter seed monitor to:
FILL DISK
10. Place a collection bucket under each test meter’s
seed tube.
11. In the Spreader Constant Calibration screen, enter
the “# Meter Revs” and press the [Start] button.
12. Weigh the containers plus seed (GrossWeight).
Subtract the empty container weights to obtain the
net weight.
13. The seed monitor assumes that all rows were tested.
If you tested fewer (commonly the case), scale the
sample size to planter-wide:
14. Enter the Amount Dispensed.
The seed monitor computes a new Spreader
Constant.
Note: If the net weight of the metered sampled was
dramatically different than expected, run another
calibration to validate or revise the new spreader
constant.
15. Re-engage couplers on disabled meters.
Moving Chain Hazard:
Shafts turn and chains move as soon as the [Start] softkey is
pressed on the seed monitor. Set up collection containers so
that they may be unattended. Keep all persons clear of the
planter while calibrating.
For example: ContainerWeight: 2 lbs
GrossWeight : 12.88 lbs
12.88 - 2 = 10.88
NetWeight : 10.88 lbs
For example: NetWeight: 10.88 lbs
RowCount : 31
RowsSampled : 4
(10.88 x 31)
÷ 4 = 84.34 lbs
AmountDispensed : 84.34
NetWeight GrossWeight ContainerWeight – =
AmountDispensed
NetWeight RowCount
×
RowsSampled
--------------------------------------------------------
=