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Conditions at the mounting location
3
Conditions at the mounting location
Series PW37 load cells are hermetically encapsulated and are therefore very
insensitive to the effects of moisture and humidity. The transducers achieve
protection class IP68 (test conditions: 100 hours under 1 m water column) and
IP69K (water at high pressure, steam cleaning), as per DIN EN 60529.
Nevertheless, the load cells should be protected against constant humidity and
moisture.
3.1
Protection against corrosion
The load cells must be protected against chemicals that could attack the
transducer body steel or the cable.
Notice
Acids and all substances that release ions also attack stainless steels and their
weld seams.
The resultant corrosion can cause the transducer to fail. If this is the case, you
must provide appropriate means of protection.
3.2
Cleaning
The load cell has been designed according to the EHEDG design guidelines to
allow for easy, mild cleaning. When mounting the load cell, make certain it can
be reached from all sides for cleaning. Cleaning can be performed without
dismounting the load cell and should be done regularly. The surface of the load
cell must not be damaged with sharp-edged brushes during cleaning.
3.3
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
distorting the measured value (force shunt).
8
A04856_03_Y00_00 HBM: public
PW37P
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