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6
CONDITIONS ON SITE
Protect the transducer from weather conditions such as rain, snow, ice, and salt water.
6.1
Ambient temperature
The effects of temperature on zero signal and sensitivity are compensated.
To obtain optimum measurement results, you must comply with the nominal (rated) tem
perature range. Because of its structure, the arrangement of the SGs is particularly insen
sitive to temperature gradients. Despite this, temperatures that are constant and at best
slowly changing have a favorable effect on accuracy. A radiation shield and all-round
thermal insulation produce noticeable improvements. They must not be allowed to set up
a force shunt.
6.2
Moisture and corrosion protection
The force transducers are hermetically encapsulated and are therefore very insensitive to
moisture.
The protection class of the sensors depends on the choice of electrical connection. In the
standard version with a bayonet connector, the sensor achieves degree of protection
IP67 as per DIN EN 60259 (test conditions: 0.5 hours under 1 m water column). This ap
plies when the plug is connected.
Degree of protection IP64 is achieved in the "threaded connector" version.
With stainless steel force transducers, please note that acids and all materials which re
lease ions will also attack stainless steels and their seam welds. Any resulting corrosion
could cause the force transducer to fail. In this case, appropriate means of protection
must be provided.
Information
We recommend protecting the transducer against long-term exposure to moisture and
weather conditions.
6.3
Deposits
Dust, dirt and other foreign matter must not be allowed to accumulate sufficiently to di
vert some of the measuring force, thus invalidating the measured value (force shunt).
14
U15
CONDITIONS ON SITE
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