Siemens SIWAREX WP231, Руководство пользователя

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Commissioning
7.5 5 minute quick start with the operator panel and the Ready-for-Use software
SIWAREX WP231
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Manual, 07/2014, A5E31238908A-02
7.5.6 Calibrating the scale automatically
The scale can also be calibrated without weights. To do this, it is necessary to enter data
specific to the load cells. In addition, it is essential that the scale is empty.
Figure 7-6 Quick start step 4b
The number of points of support corresponds with a silo, for example, to the number of
clamps or feet of the silo. A quadratic platform scale with a load cell at each corner has 4
support points. The characteristic values of the individual load cells are required to calculate
the average characteristic value of the cells.
The equation for the calculation is as follows:
(characteristic of cell 1 + characteristic of cell 2 + characteristic of cell n) / n
If the exact characteristic values are unknown, it is permissible to also use rounded-off
numbers (e.g. 1.0 mV/V, 2.0 mV/V). The nominal load of an individual load cell (not the
nominal load of the complete scale!) must subsequently be defined.