Great Plains NTA3007HD Operator Manual - Manual (Page 77)

Adjustments 73
04/04/2011 166-207M
Find Your Chart and Rate
Standard “2 star” rates are in the main section of the
Seed Rate manual. “3 star” and “4 star” rates are in the
Appendix.
If you are planning to operate both hoppers, perform the
setup steps separately for each hopper, as the configura-
tions (including stars) may be completely different.
1. Confirm that the chart is for the material and star
configuration you have.
2. Find your target population or application rate.
Note: If you have a choice of charts, for most consistent
results, pick one that results in a variable rate gear-
box value between 30 and 70.
Dual Hopper Considerations
If you are applying the same material from both hoppers,
what chart rate to start with depends on whether you will
run both meters simultaneously, or sequentially (run one,
then the other).
The charts do not account for “twin” hopper operation. If
both hoppers are metering the same material, at the
same rate, and at the same time, the output is twice the
chart rate. If run sequentially, or metering different mate-
rials at the same time, treat them as single-hopper oper-
ation.
High Rate Flute Considerations
“High Rate” charts are provided for some seeds, but the
charts do not cover all possible combinations of high-rate
flutes. You can use any standard-rate single-hopper
chart.
Adjustment for Dual Metering / High Rate Flutes
To find the initial chart rate for dual hopper and/or alter-
nate flutes:
To find the rate to check at calibration:
Null4:
Great Plains Man
ufactur ing, Inc.
Seed Rates
27
04/23/2010
167-085B
Wheat (2 Star
s) Higher r ate Wheat char
ts, requir ing optional flutes
, are on page 37 and page
38
Notes:
Stated seed density is measured, and not customar y commodity call
weight. If y our seed has a significantly diff
erent density , see “ Den-
sity Adjustment ” on page 30. Table rates are f or application from a single hopper at a time (whether or not both are loaded with the same mater
ial). F or appli-
cation of the same mater
ial from both hoppers sim
ultaneously , do
not use the target r ate data. First divide the target r
ate b y two, and
use the setting f or that half r ate. Use that target r
ate for calibr ating
each meter .
Final Drive Range Gear
s Stars Per Outlet
Seed Density
Remarks: l e h s u b r e p s d n u o p 5 . 1 6
2
e g n a R h g i H
See table footnotes
.
54T Driving; 17T Driven
(standard)
0.79 kg/liter
Seed Rate
e t a R d e e S
e t a R d e e S
a h / g k c a / s b l
a h / g k c a / s b l
a h / g k c a / s b l
0 0 0 - 100.2 112.3 46 77955 238.5 267.3 73 81929
16.4 18.4 20 75699 104.7 117.3 47 77990 243.7 273.1 74 82307
18.4 20.6 21 75902 109.2 122.4 48 78027 248.8 278.9 75 82712
20.5 23.0 22 76092 113.9 127.6 49 78067 253.8 284.5 76 83146
22.7 25.4 23 76268 118.5 132.9 50 78110 258.8 290.1 77 83610
25.0 28.0 24 76431 123.3 138.2 51 78159 263.6 295.5 78 84106
27.4 30.7 25 76582 128.2 143.7 52 78212 268.4 300.8 79 84636
29.9 33.5 26 76722 133.1 149.2 53 78272 273.0 306.1 80 85202
32.5 36.4 27 76850 138.0 154.7 54 78338 277.6 311.1 81 85806
35.2 39.5 28 76967 143.1 160.4 55 78411 281.9 316.0 82 86451
38.0 42.6 29 77074 148.2 166.1 56 78493 286.2 320.8 83 87138
40.9 45.9 30 77172 153.3 171.8 57 78583 290.2 325.3 84 87871
43.9 49.2 31 77260 158.5 177.6 58 78684 294.1 329.7 85 88653
47.0 52.7 32 77341 163.7 183.5 59 78794 297.8 333.9 86 89486
50.2 56.3 33 77413 169.0 189.4 60 78916 301.4 337.8 87 90374
53.5 60.0 34 77479 174.3 195.4 61 79050 304.6 341.5 88 91322
56.9 63.7 35 77538 179.6 201.3 62 79197 307.7 344.9 89 92332
60.4 67.6 36 77591 185.0 207.4 63 79357 310.5 348.1 90 93410
63.9 71.7 37 77640 190.4 213.4 64 79532 313.1 350.9 91 94560
67.6 75.8 38 77683 195.8 219.4 65 79723 315.4 353.5 92 95789
71.4 80.0 39 77723 201.2 225.5 66 79930 317.4 355.8 93 97102
75.2 84.3 40 77760 206.5 231.5 67 80155 319.1 357.7 94 98506
79.2 88.7 41 77795 211.9 237.6 68 80398 320.5 359.2 95 100008
83.2 93.3 42 77828 217.3 243.6 69 80660 321.5 360.4 96 101617
87.3 97.9 43 77859 222.7 249.6 70 80943 322.2 361.1 97 103342
91.5 102.6 44 77891 228.0 255.5 71 81248 322.5 361.5 98 105194
95.8 107.4 45 77923 233.3 261.5 72 81576 322.4 361.4 99 107184
Wheat (2 St ars)
31308
Gearbox
Setti
ng Cal. Const.
Gearbox Setti ng Cal. Const.
Gearbox
Setting Cal. Const.
Target Rate Adjustments
Hoppers for This Material
Single or
Sequential
Dual
Simultaneous
2 Stars
(std.)
Chart would be 1x rate
LookupFactor = 1.0
TwinFactor = 1.0
Chart would be 2x rate
LookupFactor = 0.5
TwinFactor = 0.5
3 Stars
Chart would be 1.5x rate
LookupFactor = 0.67
TwinFactor = 1.0
Chart would be 3x rate
LookupFactor = 0.33
TwinFactor = 0.5
4 Stars
Chart would be 2x rate
LookupFactor = 0.5
TwinFactor = 1.0
Chart would be 4x rate
LookupFactor = 0.25
TwinFactor = 0.5
Null4:
For Example:
Drill: NTA907HD-4875
Crop: Barley (no high rate flute chart available)
Field rate: 500 kg/ha (above 2 flute chart coverage)
Flutes: 3 star
Metering: simultaneous dual hopper
165 = 500 x 0.33
Lookup the settings for 165 kg/ha
ChartRate FieldRate LookupFactor
×
=
Null4:
Continuing the example:
Field rate: 500 kg/ha
250 = 500 x 0.5
Calibrate each meter to 250 kg/ha
CalRate FieldRate TwinFactor
Ч
=