Meter calibration, Calibration procedure, Meter calibration calibration procedure – Great Plains ADC2350BE Operator Manual User Manual
Page 66
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ADC2350/E and ADC2350B/BE
Great Plains Manufacturing, Inc.
167-085M
2012-08-01
3.
Reinsert the hairpin cotter.
Note: The variable rate gearbox operates optimally
between 30 and 70. If a seed has charts for both
HIGH Range and LOW Range, the most consistent
results are obtained when the gearbox control arm
is set between 30 and 70. Settings below
20 degrees are not recommended. When the
control arm is set above 70 degrees, large
movements of the arm result in small changes in
seeding rate.
Note: If you will be metering the same material from both
bins at the same time, use the Seed Rate chart
entry for half the desired application rate. Do not
use a half scale setting - the effect of the variable
rate gearbox control arm is not linear.
Meter Calibration
Push
then
and then
to get to
meter calibration.
The Seed Rate charts are based on cleaned untreated
seed of average size and test weight. Many factors affect
meter rates including foreign material, seed treatment,
seed size, field conditions, and test weight. The Fertilizer
Rate chart is based on a representative granular
fertilizer.
Great Plains recommends calibrating for the exact
materials you intend to apply. Calibration determines two
very important settings for achieving accurate rates:
• The pounds per acre (or kg/ha) of the meter at the
current variable rate gearbox setting for your particular
seed or fertilizer.
• The Calibration Constant for the monitor to accurately
report the planting rate of your particular seed or fertilizer.
Calibration Procedure
The seed monitor must be correctly set up for both the air
drill and the material(s), or the calibration will not result in
useful monitor displays.
1.
Set the Final Drive Range gears and Variable Rate
Gearbox setting to the values suggested in the Seed
Rate Chart (or Fertilizer Rate Chart).
2.
Make sure there is enough material in the hopper(s)
for at least
1
⁄
10
acre (or
1
⁄
10
hectare) plus an extra
75 to 100 lbs. (35-45 kg).