HBM 1-C11/100N-3, Инструкция по монтажу, Страница: 13 / 64

Conditions on site
C11
A05449_01_Y00_02 HBM: public
11
6 Conditions on site
C11 series force transducers are made of rustless materials. It is nevertheless
important to protect the transducers from weather conditions such as rain,
snow and ice, and salt water.
6.1 Ambient temperature
The effects of temperature on the zero signal and on sensitivity are
compensated
.
To obtain optimum measurement results, comply with the nominal (rated)
temperature range. The strain gage arrangement results in extreme
insensitivity to temperature gradients, due to the construction (radially
symmetric shear force transducer). Nevertheless, constant or very slowly
changing temperatures are best. A radiation shield and all-round thermal
insulation produce noticeable improvements. However, they must not be
allowed to set up a force shunt, i.e. slight movement of the force transducer
must not be prevented.
6.2 Moisture and corrosion protection
The force transducers are hermetically encapsulated and are therefore
insensitive to moisture under normal operating conditions. Despite the careful
encapsulation, it makes sense to protect the transducers against permanent
exposure to moisture.
The force transducer must be protected against chemicals that could attack the
steel.
With stainless steel force transducers, note that acids and all materials which
release ions will in general also attack stainless steels and their welded seams.
Should there be any corrosion, this could cause the force transducer to fail. In
this case, appropriate protective measures must be provided.