Siemens SIWAREX WL280, Руководство по эксплуатации, Страница: 19 / 58

Description
3.2 Design and function
RN-S SA
Operating Instructions, 09/2016, A5E32605810A-03
19
3.2.3 Design and principle of operation of the guide element
Structure
The main components of a guide element are:
1.
Turnbuckle with two pivot heads
2. 2 x flanges
The flanges are screwed onto the sides of the top and base plates. One or two guide
elements can be mounted on a compact installation unit. The turnbuckle can be moved
freely in the pivot heads.
Principle of operation
A guide element prevents the top plate from moving in exactly one direction. All other
directions are free.
When arranged appropriately, three guide elements prevent the load bearing implement from
moving horizontally. The movement in the measuring direction is not restricted. Expansion of
the load bearing implement as a result of changes in temperature or load is not prevented.
Transverse forces acting on the load bearing implement are routed directly into the
foundation.
With more than three guide elements, the risk exists that the guide elements tension each
other. This could result in errors in measurement.
Figure 3-7 Compact installation unit with load cell and guide element