To be done before spreading
72
Suppose you would want to spread NPK 17-17-17 from the example
with the features as given in the spreading chart on this page:
With a working width of 59 ft, a driving speed of 5 mph and a selected
application rate of 21 lbs/acre.
The required application rate falls beyond the scope of the spreading
chart.
Calculate the required flowrate.
Result: flowrate required = 12.4 lbs/min.
Set the discharge point as indicated in the first line of the chart: O.
Calculate the required flowrate with fine application: 3 x 12.4 = 37,2
lbs/min.
This value is in the dosing setting: 24+0 (= 24).
Do a manual calibration test to check the flowrate setting.
500
flowrate required (lbs/min) =
59 (ft) x 5 (mph) x 21 (lbs/acre)
66,2 lb/ft³
Grande Paroisse (AZF)
2 MM
3,3 MM
4,75 MM
0
Granulaat
59 ft
NPK 17-17-17
- 30 -
-
70
0
18+0
7,7
O
19
53
40
32
26
23
20
18
18+3
13
O
31
86
65
52
43
37
32
29
24+0
18
O
43
119
90
72
60
51
45
40
24+3
24
O
55
153
115
92
76
65
57
51
30+0
29
O
67
186
140
112
93
80
70
62
30+3
34
O
78
219
165
132
110
94
82
73
36+0
40
O
90
253
189
152
126
108
95
84
36+3
49
O
111
311
233
186
155
133
116
104
42+0
59
O
132
369
277
221
184
158
138
123
42+3
68
O
153
427
320
256
213
183
160
142
48+0
78
O
173
485
364
291
242
208
182
162
48+3
87
O
194
543
407
326
271
233
204
181
54+0
97
O
215
601
451
360
300
257
225
200
54+3
111
O
244
681
511
409
341
292
255
227
60+0
124
O
272
762
571
457
381
326
286
254
60+3
138
O
301
842
632
505
421
361
316
281
66+0
151
O
330
922
692
553
461
395
346
307
66+3
165
O
359 1003 752
602
501
430
376
334
72+0
179
O
387 1083 812
650
542
464
406
361
72+3
193
O
414 1157 868
694
578
496
434
386
78+0
207
O
440 1230 923
738
615
527
461
410
78+3
222
O
466 1304 978
782
652
559
489
435
84+0
227
O
475 1329 997
797
665
570
498
443
84+3
232
O
484 1354 1016 813
677
580
508
451
90+0
237
O
493 1380 1035 828
690
591
517
460
lb/min
lb/min
lb/ac
mph
3,0
4,0
5,0
6,0
7,0
8,0
9,0
570
420
750
550
4-Y
1-Y
425
560
1-X
-30%
-2
570 rpm
750 rpm
285 / 285 / 285
36,1 ft
< 55 cm
75 cm
0°
4°
625
475
7
420
550
B
Содержание Exacta-TL-GEOSPREAD GS3
Страница 6: ...Preface 6 ...
Страница 166: ...Notes 166 Notes ...