Siemens SIWAREX WL230 BB-S SA Посібник - Сторінка 24

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Siemens SIWAREX WL230 BB-S SA Посібник
Installing/mounting

5.9 Checking the mounting

5.8

Compensating differences in height

Introduction
At the time of installation, check whether it makes sense to compensate for differences in
height. If load bearing implements and/or the foundation are elastic, it is not advisable to
compensate for differences of height.
In the following cases, you need to compensate for differences in height:
● Rigid load bearing implement and rigid foundation.
● A load cell is not loaded.
● Two diagonally opposite load cells with full scales are overloaded.
Requirement
Before you compensate for differences in height, the following requirements must be met:
● The mounting surfaces lie (approximately) in one plane to each other.
● The maximum inclination of the paving surfaces is 2 %.
● The compressive strength of the mounting surfaces is designed for the contact surfaces of
the load foot.
Procedure
1. Determine which load cell has the lowest load.
– Connect load cells in the junction box.
– Disconnect the load cell cables SIG+ and SIG-.
– Supply the load cells with a supply voltage, e.g. via electronic weighing system.
– Measure the output voltages of the individual load cells between SIG+ and SIG-.
2. Compensate for the differences in height:
– Calibrate the measuring signals by turning the screw shafts.
– Tightening the locknuts of the load foots to the recommended torque (Page 29).
3. Check the output voltages of the load cells again.
4. Repeat the sequence if necessary.
5.9
Checking the mounting
Procedure
To avoid destroying the load cell and load foot, check the mounting procedure as follows:
24
SB-S CA
Manual, 06/2019, A5E47600142-AA