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Scale parameters and functions
8.4 Calibration procedure
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.
The load cell parameters must subsequently be defined in data record 10. Command 82
"Perform automatic calibration" then uses this data and the currently applied dead load to
calculate the characteristic curve of the scale. The characteristic curve is active immediately.
Note
The characteristic curve data in data record 3 active prior to execution of command 82 is
directly overwritten.
Automatic calibration requires the following criteria:
● Correct mechanical installation of the scale
● Scale is empty (only mechanical installation (= dead load) present on the cells)
● Installed load cells are evenly loaded
● There are no shunt circuits
80
SIWAREX WP231
Manual, 07/2014, A5E31238908A-02
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