3. Safety
3.3 Improper use
Any use beyond or different to the intended use is considered as improper use. Unauthorised modifications to the
instrument are not permissible.
Use in the following apllication areas counts as improper use:
Safety or emergency shutdown devices
■
Hazardous areas
■
Abrasive or viscous media and applications with hydrogen and oxygen
■
Rail vehicles, medical devices, refrigeration technology and water pumps
■
Places of use that are not protected from weather influences
■
Processes with high condensation
■
3.4 Personnel qualification
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
regulations, current standards and directives, must be capable of carrying out the work described and independently
recognising potential hazards.
3.5 Labelling, safety marks
Product label
Product number
Serial number
Measuring range
WIKA operating instructions pressure sensor, model MH-4
Output signal
Voltage supply
Pin assignment
Coded date of manufacture
Auxiliary power
EN
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