Great Plains NTA3007HD Operator Manual - Manual (Page 79)

Adjustments 75
04/04/2011 166-207M
Channel Setup Screen
Channel 1 setups are for the front hopper.
Channel 2 setups are for the rear hopper.
“Type” - Set this to either “Gran Seed Monitor” or “Gran
Fert Monitor” based on the type of material in each hop-
per.
“Material Name” - Choose the name of the material con-
figured for each channel in steps 1 and 2 above.
“Sensor Constant” - [ ]
“Gear Ratio” - [ 1 ]
“Channel Width” - is your Implement Width (swath) in
inches (cm). Precise row/swath data is found on
page 144 (for NTA907HD) and page 145 (NTA3007HD).
If the monitor inputs are correctly entered, the monitor is
a handy tool for fine tuning the variable rate gearbox set-
ting. If the rate reported by the monitor does not match
the desired planting rate, rotate the crank to adjust the
variable rate gearbox control arm slightly so as to
achieve the desired planting rate.
Meter Rate Adjustment
Seed rate is determined by:
• Flute shafts (covered on page 72):
standard 2-star/1x rate, or
optional 3-star/1.5x or 4-star/2x rates
• Single/twin hopper metering.(covered on page 73)
• Seed meter Final Drive Range gearing
• Variable Rate Gearbox setting
The Seed Rate Manual 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.
Minor adjustments will be needed to compensate for
these factors. Initially set the rates according to the
charts, then calibrate for your material and conditions.
Calibration is also required to set up the monitor Calibra-
tion Constant. With the correct Calibration Constant and
material density the monitor can be used to help fine
tune the variable rate gearbox setting.