Load Pick-Up - Siemens SIWAREX WL270 CP-S SB Operating Instructions Manual

Application planning

4.3 Load pick-up

4.3 Load pick-up
Mounting surfaces
For the mounting surfaces of the pressure piece set, the following requirements apply:
● The positional and angular deviations of the mounting surfaces to each other should
● Ensure that the foundations are absolutely firm and free of depressions. In concrete
● The mounting surfaces must be vertical to the measuring direction and preferably in one
● A plane of ≤ 0.2 mm is required for the mounting surfaces.
More than three support points
For more than three support points, the load bearing implement is usually statically
indeterminate. With firm foundations and load bearing implements, the load is not evenly
distributed to all load cells. The same applies to unstable mounts such as a steel
construction. Two diagonal load cells bear the main load. The other cells only support the
load bearing implement.
There are two ways to take this into consideration:
● Over-dimensioning of the load cells
● Height compensation of the support points
Over-dimensioning of the load cells
The rated load of the load cells is calculated such that with, for example, four support points
the entire weight can be borne by two load cells.
This also prevents an overload of the load cells if depressions in the foundation have to be
taken into consideration, e.g. for racks in the steel structure.
16
correspond to the general tolerances for welded constructions in EN ISO 13920.
foundations, flat steel plates should be poured in so that the pressure piece set can be
installed on them.
plane.
Operating Instructions, 11/2010, A5E03323543B
CP-S SB