Conditions On Site; Ambient Temperature; Moisture; Deposits - HBM S9M Notice De Montage

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Conditions on site

6.1

Ambient temperature

The temperature effects on the zero signal and on the sensitivity are comp­
ensated.
To obtain optimum measurement results, the nominal (rated) temperature ran­
ge must be observed. Constant or very slowly changing temperatures are opt­
imal. Temperature-related measurement errors are caused by heating on one
side (e.g. radiant heat) or by cooling. A radiation shield and all-round thermal
insulation produce noticeable improvements, but must not be allowed to set up
a force shunt.
6.2

Moisture

Series S9M force transducers are hermetically sealed and are therefore very
insensitive to moisture influence. The transducers reach protection class IP68
per DIN EN 60259 (test conditions: 100 hours under a 1-meter water column).
Nevertheless, the force transducers must be protected against permanent
moisture influence.
The transducer must be protected against chemicals that could attack the
transducer body steel or the cable. On stainless steel force transducers, it
must be noted that acids and all materials which release ions will also attack
stainless steels and their seam welds.
Any resulting corrosion could cause the force transducer to fail. In this case,
appropriate protective measures must be implemented.
6.3

Deposits

Dust, dirt and other foreign matter must not be allowed to accumulate
sufficiently to divert some of the measuring force, thus invalidating the
measured value (force shunt).
S9M
A03019_05_YI0_04 HBM: public
Conditions on site
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