Lifting Protection; Overload Protection - Siemens SIWAREX WL280 Operating Instructions Manual

Description
3.1 Application
● Designed relief of the load cell during installation
● Overload protection of the load cell during installation
● Prepared for the attachment of guide elements: single-sided or double-sided
● Compensation of tolerance of connection holes through mounting with spring washers
● Checking of correct installation using conical washer
● Highly flexible ground wire for protection of load cell against parasitic currents
● Parts made of stainless steel for applications in the food and pharmaceutical industries
Compact installation unit for SIWAREX WL280 RN-S SA
The type SIWAREX WL280 RN-S SA self-centering compact installation unit for load cells is
especially well suited for installation in container scales, platform scales and roller table
scales.
3.1.2

Lifting protection

The lifting protection prevents the load bearing implements from being lifted off the load
cells.
If there is a risk of the load bearing implement being lifted or toppled, then lifting protection is
required. This is required in the case of lightweight containers and tall, outdoor silos.
3.1.3

Overload protection

The overload protection protects load cells from a load that is too great.
There is overload protection against excessive loads in the measuring direction and overload
protection against excessive transverse forces.
Transverse forces are caused by, for example, wind, filling processes, acceleration, or
conveyor belt friction. If these forces exceed certain values, the load cells must be protected
from them.
12
Operating Instructions, 09/2016, A5E32605810A-03
RN-S SA