- 71 -
4-
Place a container beneath the calibration cone.
5-
Use the ISOBUS machine controller to run the test, see the
specific manual for ISOBUS.
THE CALIBRATION TEST MUST BE RUN FOR THE
TWO DISTRIBUTORS.
A VALUE FOR THE CALIBRATION FACTOR
MUST BE INTRODUCED. IF THE FACTOR
IS NOT CORRECT THE CALIBRATION MAY NOT
BE CARRIED OUT.
Fig. 8.37
Fig. 8.37
INTRODUCE THE
INTRODUCE THE
FORMULA VALUE
FORMULA VALUE
CALIBRATION
1 . Start
Metering Unit
Operating Speed
Target Rate
Calibration Factor
Speed
min.
max.
g/rotation
F
rom the following formula the calibration factor to introduce
into the monitor can be obtained according to: the number
of rows, the specific weight of the product (Kg/L) and the
unit factor which depends on the roller configuration).
Calibration
Calibration
factor.
factor.
=
=
No. rows
No. rows
XX
Unit
Unit
factor
factor
Specific
Specific
weight
weight
XX
THE UNIT FACTOR TO INTRODUCE INTO
THE FORMULA IS 2.5 FOR LOW DOSAGES,
8 FOR MEDIUM DOSAGES AND 16 FOR HIGH
DOSAGES (FIG. 8.38).
Unit factor:
Unit factor:
2,5
2,5
Unit factor:
Unit factor:
8 8
Unit factor:
Unit factor:
16
16
Fig. 8.38
Fig. 8.38
IF THE SPECIFIC WEIGHT OF THE PRODUCT
IS UNKNOWN, USE THE VALUE
1
.
EXAMPLE:
For a machine with
7 rows
, a product with a specific
weight of
0.90 Kg/L
and the roller set to
HIGH
DOSAGE
. We calculate the
CALIBRATION FACTOR AS:
Calibration
Calibration
factor.
factor.
=
=
7 X 0.90 x 16 = 100.8
7 X 0.90 x 16 = 100.8
≈
≈ 101
101
Fig. 8.39
Fig. 8.39
CALIBRATION
1 . Start
Metering Unit
Operating Speed
Target Rate
Calibration Factor
Speed
min.
max.
g/rotation
6-
With the controller configured. Hold down the calibration
button (Fig. 8.40) so that it starts the calibration test.
Fig. 8.40
Fig. 8.40
H
OLD DOWN THE BUTTON TO COLLECT THE
MAXIMUM AMOUNT OF PRODUCT, THE LARGER
THE AMOUNT OF PRODUCT COLLECTED, THE
MORE ACCURATE THE CALIBRATION TEST WILL BE.