Conditions On Site; Protection Against Corrosion; Deposits - HBM PW27P Série Notice De Montage

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Conditions on site

Series PW27P load cells are hermetically encapsulated and are therefore not
at all sensitive to the influence of moisture and humidity. The transducers
attain protection class IP68 (test conditions: 100 hours under 1 m water
column) and IP69K (water at high pressure, steam cleaner), as per DIN
EN60529. Nevertheless, the load cells must be protected against constant
humidity and moisture.

2.1 Protection against corrosion

The load cell must be protected against chemicals that could attack the
transducer body steel, or the cable.
NOTE
Acids and all substances that release ions also attack stainless steels and
their welded seams.
Should there be any corrosion, this could cause the transducer to fail. If this is
the case, you must provide appropriate means of protection.

2.2 Deposits

Dust, dirt and other foreign matter must not be allowed to accumulate
sufficiently to divert some of the measuring force onto the housing, thus
invalidating the measured value (force shunt).
HBM
PW27P

A3631-1.0 en/de/fr