Improper Use; Personnel Qualification; Skilled Personnel; Special Hazards - WIKA 821 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.
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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.
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.

3.4 Personnel qualification

WARNING!
Risk of injury should qualification be insufficient!
Improper handling can result in considerable injury and damage to
equipment.
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The activities described in these operating instructions may only
be carried out by skilled personnel who have the qualifications
described below.

3.5 Skilled personnel

Skilled personnel, authorised by the operator, are understood to be personnel
who, based on their technical training, knowledge of measurement and control
technology and on their experience and knowledge of country-specific regula-
tions, current standards and directives, are capable of carrying out the work
described and independently recognising potential hazards.

3.6 Special hazards

WARNING!
For hazardous media such as oxygen, acetylene, flammable or toxic
gases or liquids, and refrigeration plants, compressors, etc., in ad-
dition to all standard regulations, the appropriate existing codes or
regulations must also be followed.
WARNING!
Residual media in dismounted measuring instruments can result in a
risk to persons, the environment and equipment.
Take sufficient precautionary measures.
Operating instructions pressure gauges with switch contact models 821, 851 or 830 E
EN
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