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Scale parameters and functions
8.4 Calibration procedure
Identical scales can be put into operation immediately. Connect the PC to the new scale and
enable the "Send all data records" function in service mode. This transfers the parameters
for calibration weights and calibration digits, and the characteristic curve is determined
immediately. The same applies when you change a weighing module.
Note
Two working points are usually sufficient for determining the scale's characteristic curve. An
additional working point is only required for non-linear systems.
Specification of negative calibration points is not possible. However, the characteristic can
also be used in the negative range down to -2 000 000 digits. To achieve this, the
characteristic curve generated in the positive range is extended into the negative range.
Figure 8-4
Load
L=0
Lo
L1
L2
L
max
L
max
56
Linearizing the scale's characteristic curve
Comment
Load cells empty
Calibration weight 0 "Zero
point"
Calibration weight 1
Calibration weight 2
Rated load of the load cell(s)
+10 %
Rated weight + approximately
10%
Load
0 kg
e.g. 60 kg
e.g. 80 kg
e.g. 100 kg
e.g. approximately 110
kg
Manual, 07/2014, A5E33715669A-02
Digits
Approx. 0
e.g. 76 082 for calibra-
tion point 0
e.g. 386 452 for calibra-
tion digits 1
e.g. 451 367 for calibra-
tion digits 2
1 000 000
1 090 000
SIWAREX WP321
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