Improper Use - WIKA GD-20 Mode D'emploi

3. Safety

3.3 Improper use

WARNING!
Injuries through improper use
Improper use of the instrument can lead to hazardous situations and injuries.
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Refrain from unauthorised modifications to the instrument.
EN
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Do not use the instrument within hazardous areas.
The operator must ensure the compatibility of the fluid with the materials used.
Any use beyond or different to the intended use is considered as improper use.
WARNING!
Physical injuries and damage to property and the environment through exceeding the
performance limits
Exceeding the performance limits can destroy the instrument and lead to danger in the end-use application.
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Use the instrument only in applications within the technical performance limits (→ for performance
limits, such as derating (maximum current supply at a corresponding medium temperature), see
chapter 9 "Specifications").
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Any permanent operation in the overload range is not permitted. Above the highest permissible
operating pressure, up to the overload limit, the gas density sensor is operating outside its
specification. The overload range is intended to prevent damage to the gas density sensor, as part
of a pressure vessel system, during the pressure containment test.
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The overload limit must never be exceeded, even when failures occur in the end-use application.
Loads above the overload limit can cause irreversible damage, which can lead, for example, to
permanent measuring errors.
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The manufacturer or operator of the machine or plant in which the product is used must ensure the
compatibility of the materials of the wetted parts with the medium used.
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The gas density sensor should not be used with abrasive or unstable fluids, in particular not with
hydrogen.
40 WIKA operating instructions gas density sensor, model GD-20