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Scale parameters and functions
8.4 Calibration procedure
Figure 8-3
Load
L=0
L0
L1
L
max
L
max
You do not need to perform calibration if the calibration digits and the calibration weights are
known to the weighing module described here. They are simply sent to SIWAREX by data
record DR 3 and the scales are ready for use immediately.
The SIWATOOL program facilitates rapid calibration.
Following commissioning and calibration, all data records must be read from the weighing
module and saved as a scale file.
Identical scales can be put into operation immediately. Connect the PC to the new scales
and enable the "Send all data records" function. This transfers the parameters for calibration
weights and calibration digits, and the characteristic curve are determined immediately. The
same applies when you change a weighing module.
Note
Two working points are usually sufficient for determining the scales' characteristic curve. An
additional working point is only required for non-linear systems.
78
Calibration digits and calibration weight
Comment
100 kg load cell (2 mV/V) not
loaded
Mechanical installation on load cell
(dead load)
Calibration weight 1 placed onto
scale
Nominal weight of load cell
+10%
Rated weight + approx. 10 %
Load
Digits
Approx. 0
25 kg
Approx. 500 000
e.g. 60 kg
Approx. 1 200 000
100 kg
2 000 000
Approx. 110 kg
2 200 000
Manual, 07/2014, A5E31238908A-02
SIWAREX WP231
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