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Conditions On Site; Ambient Temperature; Moisture And Other Ambient Conditions; Deposits - HBK HBM RSCC Montageanleitung

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6

CONDITIONS ON SITE

6.1

Ambient temperature

The temperature effects on the zero signal and on the sensitivity are compensated.
To obtain optimum measurement results, the nominal (rated) temperature range must be
observed. Temperature‐related measurement errors are caused by heating (e.g. radiant
heat) or by cooling on one side. A radiation shield and all‐round thermal insulation
produce noticeable improvements, but must not be allowed to form a force shunt.
6.2

Moisture and other ambient conditions

Series RSCC load cells are hermetically sealed and are therefore not at all sensitive to
humidity and moisture. The transducers attain protection class IP68 as per DIN EN 60529
(test conditions: 100 hours under 1 m water column). Nevertheless, the load cells must
be protected against permanent humidity and moisture.
The load cell must be protected against chemicals that could attack the transducer body
steel, or the cable. With stainless steel load cells, please note that acids and all materials
which release ions will also attack stainless steels and their welded seams. Should there
be any corrosion, this could cause the load cell 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).
Notice
Measurement errors may be the result if dust or dirt is deposited inside the load cells. The
relevant areas are marked by arrows in Fig. 6.1.
Fig. 6.1
Deposits at the marked areas must be avoided
RSCC
CONDITIONS ON SITE
9

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