Siemens SIWAREX WL290 DB-S CA Operating Instructions Manual - Page 11

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Description

3.1

Application

3.1.1

Silo mounting unit

The self-centering mounting unit for SIWAREX WL290 DB-S CA load cells is particularly

suitable for implementation in container, platform, vehicle and roller table scales. The design

was specially developed for installation in silos. The mounting unit handles the introduction of

force into the load cell. The mounting unit covers load cell rated loads from 2.3 t to 113 t.

3.1.2

Lifting protection

The lifting protection prevents the load bearing implement from being lifted off of the load cells.

If there is a risk of the load bearing implement being lifted or toppled, then lifting protection is

required. Lifting protection 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. Protect the load cell from loads as stated in section Technical data

(Page 23).

3.1.4

Grounding cable

The grounding cable is used to protect the load cells from undesired currents. The causes of

such currents are, for example:

● Equalizing currents with missing or faulty equipotential bonding conductors

● A lightning strike nearby

● Welding work

● Static charge

DB-S CA 2.3 ... 113 t

Operating Instructions, 10/2019, A5E46619167-AA