Automatic Calibration; Linearizing The Scales' Characteristic Curve; Image - Siemens SIWAREX WP251 Manual

Scale parameters and functions
8.4 Calibration

Image 8-4

Load
L=0
L0
L1
L2
L
max
L
max
8.4.2

Automatic calibration

Scales can be rapidly commissioned with automatic calibration. The accuracy of the scale
greatly depends on the entered parameters and the mechanical properties of the scale. The
best level of accuracy for the scale can be achieved by calibrating with calibration weights.
During initial commissioning with automatic calibration, the module must be reset using the
"Load factory settings" or "Load standard parameters" command.
78

Linearizing the scales' characteristic curve

Comment
100 kg load cell (2 mV/V) not
loaded
Mechanical installation on load
cell (dead load)
Calibration weight 1 placed
onto scale
Calibration weight 2 placed
onto scale
Nominal weight of load cell
+10 % Rated weight + approx. 10 %
Load
e.g. 25 kg
e.g. 60 kg
e.g. 80 kg
100 kg
Approx. 110 kg
Manual, 12/2015, A5E37203357A
Digits
Approx. 0
Approx. 500 000
Approx. 1 200 000
Approx. 1 650 000
Approx. 2 000 000
Approx. 2 200 000
SIWAREX WP251