Conditions on site
FIT
®
7A
A03924_02_YI0_00
HBM: public
7
3
Conditions on site
Series FIT7A load cells are hermetically encapsulated and are therefore not at
all sensitive to the influence of moisture and humidity. The transducers achieve
protection class IP66 (when vent hose is properly connected) in accordance
with DIN EN60529. The load cells should nevertheless be protected against
the lasting influence of moisture and humidity.
3.1
Protection against corrosion
The load cell must be protected against chemicals that could attack the steel of
the housing and base plate, or the cable.
Notice
Acids and all substances that release ions also attack stainless steels and their
welded seams.
The resultant corrosion can cause the transducer to fail. If this is the case, you
must provide appropriate means of protection.
The sealing element for load application comprises a soft bellows made from
silicone rubber. Substances that could attack this material must not be used.
3.2
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).
Do not use hard or pointed objects when cleaning the gap between the load
application thrust piece and the housing. Be very careful during cleaning,
making sure that you do not damage the silicone rubber bellows.
