8
9
0800 4 VOGAL (0800 486 425)
E:
W:
www.rataequipment.com
0800 4 VOGAL (0800 486 425)
E:
W:
www.rataequipment.com
SETTING
1
2
3
4
5
6
7
Urea
-
-
11.00
27.50
44.83
63.30
82.50
Super
-
-
19.30
44.00
77.00
112.80
140.30
DAP
-
-
19.30
35.80
57.80
79.80
104.50
CALIBRATION
CALIBRATION SETTINGS
Calibrated at a speed of 15kph (kg/ha)
Calibrated at a speed of 20ph (kg/ha)
Note:
these calibrations are a guide only and should be checked to confirm accuracy.
SETTING
1
2
3
4
5
6
7
Urea
-
-
7.50
20.00
32.50
50.00
62.50
Super
-
-
20.00
42.00
62.50
82.50
102.50
DAP
-
-
10.00
25.00
40.00
60.00
75.00
To calibrate your spreader, view this blog and accompanying explainer video on our
website:
rataequipment.com/how-to-calibrate-a-spreader
If you are unable to access the internet, carefully read and perform the following
instructions:
1.
Place a measured amount of fertiliser in the hopper, e.g. 10kg (A).
2.
Choose an aperture setting to suit the rate required for the type of fertiliser
used, e.g. Setting 6 (B).
3.
Obtain the desired travel speed (12 to 15 km/hr) and open the aperture to
preset setting 6, e.g. 200 metres (C).
Note
maintain a constant speed and coverage width, e.g. 8 metres (D).
4.
Check the effective spread coverage width, e.g. 8 metres (D).
5.
Measure the amount of fertiliser left in the hopper, e.g. 4kg (E).
6.
Then perform the following calculations:-
Measured amount of fertiliser initially loaded in the hopper (A)
10kg
Deduct any remaining fertiliser (E)
4kg
Balance used
6kg
Multiply width of spread (D)
8 metres
By the metres travelled (C)
x 200 metres
= 1,600sq. metres
Divide 10,000 by the answer (1,600)
10,000 / 1,600 = 6.30
Multiply the sum (6.30) by the test quantity used (B)
6kg (B) x 6.30
= 37.80kg
The figure achieved is the sowing rate per hectare at the constant speed selected
for the test.
Due to the variations of seed and fertiliser types, it is recommended the test be
carried out for each product being used.
