Improper Use - WIKA TFS135 Mode D'emploi

3. Safety
They monitor the temperature of machinery and equipment during
normal operation and, for example, switch off machinery if it
overheats.
EN
The instruments are not approved for use in hazardous areas!
The instrument has been designed and built solely for the intended
use described here, and may only be used accordingly.
The technical specifications contained in these operating instructions
must be observed. Improper handling or operation of the bimetal
temperature switch outside of its technical specifications requires the
instrument to be taken out of service immediately and inspected by
an authorised WIKA service engineer.
The manufacturer shall not be liable for claims of any type based on
operation contrary to the intended use.

3.3 Improper use

Any use beyond or different to the intended use is considered as
improper use.
Do not use this instrument in safety or emergency stop devices.
8
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.
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Do not use the instrument within hazardous areas.
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Do not use the instrument with abrasive or viscous
media.
WIKA operating instructions model TFS135