Great Plains NTA2007 Material Rate - Manual (Page 11)

Great Plains Manufacturing, Inc. Contents Appendix Setting Meter Rate 9
2012-01-03 Contents Appendix 167-085B
8. Accurately weigh an empty container large enough
to catch material coming out of the meter. The
calibration bag supplied with your cart or drill weighs:
9. As needed, on models with calibration chutes,
deploy or install the chute.
Refer to Figure 11 (which depicts a meter without guards - if
your cart included guards, do not operate without them)
10. Place calibration bag under open calibration door or
onto the calibration chute:
11. On the seed monitor terminal,
set the monitor to Calibration mode .
enter [ 5 ] for the “# Meter Revs”, and
press the Start softkey .
This “# Meter Revs” parameter does not affect the
monitor calibration because the monitor counts
actual meter shaft revolutions and uses that count to
compute the Calibration Constant.
The “# Meter Revs” parameter is used for a progress
bar displayed during calibration.
12. Turn the calibration crank for the number of turns to
simulate
1 ⁄
10
hectare (or
1 ⁄
10
acre). See table at right
for the correct number of turns for your implement.
Note: A longer calibration is always more accurate,
especially for low rates and small seeds.
1 ⁄
10
hectare or acre is easy to calculate and is a
minimum calibration run.
Note: It is important to turn the calibration crank rapidly.
For ADC2350, ADC2350B, NTA907/HD and
NTA3007/HD, about 2 to 2
1 ⁄
2
revolutions per
second is the proper speed to simulate
8 to 9.6 kph (5 to 6 mph) planting speed.
For NTA607/HD and NTA2007/HD, about 1 to 1
3 ⁄
4
revolutions per second is the proper speed to
simulate 6.7 to 11.8 kph (4.2 to 7.3 mph).
ADC2350/B: 1.52 Kg (3.36 lbs)
NTA607/2007/HD: 0.91 Kg (2.0 lbs)
NTA907/3007/HD: 1.52 Kg (3.36 lbs)
ADC2350:
ADC2350B: Loop bag handles over door handles
and hook bag to front of the meter.
NTA607/HD:
NTA2007/HD: Deploy calibration chute. Attach bag
to end of chute.
NTA907HD:
NTA3007HD: Loop bag handles over door handles
and hook bag to front of the meter.
NTA907:
NTA3007: Install calibration chute. Attach bag to
discharge end of chute.
Figure 11
Calibration Bag
26402
Drill Model
Clutch Shaft (Crank) Revs for…
1 ⁄
10
Hectare
1 ⁄
10
Acre
3N-4010HDA 76
1 ⁄
2
31
CTA4000 75
1 ⁄
2
30
1 ⁄
2
CTA4000HD 75
1 ⁄
2
30
1 ⁄
2
NTA607
a
a. The implement or drill Operator Manual provides
more precise crank counts, which vary slightly with
row spacing, wing flex option and pass/bout gap.
86
1 ⁄
4
35
NTA607HD
a 86
1 ⁄
4
35
NTA907
113
b
105
c
b. Counted at jackshaft.
c. Counted at contact wheel.
45.9
b
42
1 ⁄
2
c
NTA907HD 105 42
1 ⁄
2
NTA2007
a
86
1 ⁄
4
35
NTA2007HD
a
86
1 ⁄
4
35
NTA3007
113
b
105
c
45.9
b
42
1 ⁄
2
c
NTA3007HD 105 42
1 ⁄
2
NTA3010 102 41
1 ⁄
4
NTA3510 77 31
1 ⁄
4