Mechanical Installation; Important Precautions During Installation; General Installation Guidelines - HBM U93 Montageanleitung

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5

Mechanical installation

5.1 Important precautions during installation

• Handle the transducer with care.
• Welding currents must not be allowed to flow over the transducer. If there is
a risk that this might happen, you must use a suitable low‐ohm connection
to electrically bypass the transducer. HBM, for example, provides the highly
flexible EEK ground cable, which can be screwed on, both above and
below the transducer.
• Make sure that the transducer cannot be overloaded.
WARNING
There is a danger of the transducer breaking if it is overloaded. This can
cause danger for the operating personnel of the system in which the
transducer is installed.
Implement appropriate safety measures to avoid overloads or to protect
against resulting dangers.

5.2 General installation guidelines

The forces to be measured must act on the transducer as accurately as pos­
sible in the direction of measurement. Torsional and bending moments, ec­
centric loading and lateral forces may produce measurement errors and de­
stroy the transducer, if limit values are exceeded.
NOTE
The transducer is hermetically sealed underneath by a welded base. This
base is very thin, and must not be subjected to mechanical stress (Fig. 5.1),
as otherwise the housing could be damaged. This would allow moisture to
penetrate and destroy the transducer.
HBM
U93
A2081-2.2 en/de/fr