M2(W) / M3(W) / M6W
38
How to use the quadro calibration system
BOGBALLE M-line is as standard equipped with the quadro calibration system
which is used for adjusting the spreader’s quantity and for rest emptying (see the
enclosed quadro folder).
The system is used for stationary calibration in order to precisely adjust the
spreader according to the fertiliser’s condition - as the temperature, air humidity
and other climate conditions might influence on the fertiliser flow.
Please notice that the fertiliser’s condition can vary from each delivery. It’s
advised to carry out a new calibration for each delivery.
If the hopper is moist on the inside the moisture will prevent the fertiliser from
gliding. In these cases it’s advised to carry out a minimum of three calibrations
– the last calibration value being the one that counts.
PROCEDURE:
(We also refer to the quadro folder which illustrates the practical usage)
1. The scale stop is fixed at 4,5 on the spreader’s scale
2.
Let the PTO-shaft rotate at 200-250 rpm.
(The spreader’s flow is constant with PTO rotations between 200-540 rpm.)
3. A calibration test is performed for exactly 30 sec.
(The spreader’s outlet is opened for 30 sec.).
4. The calibration value is weighed
5. The fertiliser’s Flow Factor is calculated cf. the below formula:
Quantity [
Kg/Ha
] x Spread width [
M
] x Speed [
Km/h
]
Calibration value [
Kg/
30 sec.
]
6. In the Flow Factor list on the next page you can find the Flow Factor closest to
the
calculated
Flow Factor – read off the scale figure or use the Flow Factor
directly and adjust the spreader’s scale.
Symbol explanation:
[Kg/Ha]
: The
wanted
quantity
[M]
: Spread
width
[Km/h]
: Speed
:
Calibration value after 30 sec. at scale figure 4,5
:
Scale 0-9, Flow Factor 645-6575