Application planning
4.3 Load pick-up
RN-S SA
22
Operating Instructions, 09/2016, A5E32605810A-03
Figure 4-1
Proposed solution for lifting protection
4.3
Load pick-up
Mounting surfaces
For the mounting areas of the installation units, the following requirements apply:
●
The positional and angular deviations of the mounting areas to each other should
correspond to the general tolerances for welded constructions in EN ISO 13920.
●
Ensure that the foundations are absolutely firm and free of depressions. In concrete
foundations, flat steel plates should be poured in so that installation units can be installed
on them.
●
The mounting surfaces must be vertical to the measuring direction and preferably in one
plane.
●
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.
Summary of Contents for SIWAREX WL280
Page 20: ...Description 3 2 Design and function RN S SA 20 Operating Instructions 09 2016 A5E32605810A 03 ...
Page 44: ...Mounting 5 4 Dismantling RN S SA 44 Operating Instructions 09 2016 A5E32605810A 03 ...
Page 56: ...Appendix A 1 Technical support RN S SA 56 Operating Instructions 09 2016 A5E32605810A 03 ...