Siemens SIWAREX R Manuale di istruzioni per l'uso - Pagina 15
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Edition 06/2009
If overload protection devices are available, these must be set so that they still
accommodate the desired load safely. They must allow an unhindered increase in
weight up to the nominal weight.
Overload protection devices must be protected against soiling and freezing.
The perfect functioning of overload protection devices must be checked in the
course of regular maintenance work.
DANGER
Soiled, frozen or incorrectly set overload protection devices block and lead to
faulty measurements or can cause overflowing of the scales with property
damage and injury to persons.
CAUTION
Correct assembly of the load cell and installation element must be checked by
inspecting the installation dimensions and pendulum travel for example.
Make sure the cable is not damaged or cut.
The cable must be laid at the cable glands in the form of a vertical downward loop
to avoid penetration by water.
CAUTION
The installation regulations of the installation element must also be taken into
account in assembly.
Special features of bending ring scales series RN, RH, RC, RS
•
Bending ring scales up to 13t are delivered with a pressure piece. The
pressure piece is inserted in the load cell and secured against falling out by
adhesive tape. It may not be lost when handling the load cell.
•
Bending ring load cells have a very small measuring distance. An overload
protection is integrated in load cells with rated loads up to 13t. The standing
area of the load cell restricts the movement of the force application tube. For
this reason the standing area of the load cell must be checked carefully for
soiling prior to installation. If there is a risk that the bottom of the load cell could
become soiled or frozen, appropriate inspection and/or sealing measures must
be taken. The bottom can be protected by a grease ring or sealing compound
for example. When these measures are taken it must be considered that the
force application also needs to be well sealed at the top of the load cell to
effectively prevent penetration by moisture.
SIWAREX R Load Cells Operating Manual
A5E00159640
Installation/Assembly
15