Scale parameters and functions
8.4 Calibration procedure
SIWAREX WP321
Manual, 07/2014, A5E33715669A-02
55
This defines the characteristic curve and the scale can now calculate weights for the full
measuring range.
The diagram below illustrates the relationship between calibration digits and the calibration
weight.
Figure 8-3 Calibration digits and calibration weight
L=0 Load cells empty Approx. 0
Lo Calibration weight 0 "Zero
point"
0 kg e.g. 70 682 for calibration
point 0
L1 Calibration weight 1 e.g. 60 kg e.g. 308 452 for calibration
digits 1
L
max
Rated load of the load cell(s) e.g. 100 kg 1 000 000
L
max
+10 % Rated weight + approximately
10%
e.g. approximately
110 kg
1 090 000
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 scale is 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.
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