Pressure gauges with output signal, optionally for hazardous areas14
11297264.05 07/2019 EN/DE
EN
5. Commissioning, operation
Personnel: Skilled personnel
Before installation, commissioning and operation, ensure that the appropriate instrument has
been selected in terms of scale range, design and specic measuring conditions.
WARNING!
Physical injuries and damage to property and the environment caused by
hazardous media
Upon contact with hazardous media (e.g. with ammable or toxic substances),
harmful media (e.g. corrosive, toxic, carcinogenic, radioactive), there is a danger of
physical injuries and damage to property and the environment.
Should a failure occur, aggressive media with extremely high temperature and
under high pressure may be present at the instrument.
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For these media, in addition to all standard regulations, the appropriate exist-
ing codes or regulations must also be followed.
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Wear the requisite protective equipment.
WARNING!
Physical injuries and damage to property and the environment caused by
media escaping under high pressure
With the pressurisation of the instrument, as a result of poor sealing of the
process connection, media under high pressure can escape.
Due to the high energy of the media that can escape in the event of a failure, the
possibility of physical injuries and damage to property exists.
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The sealing of the process connection must be carried out expertly and
checked for leak tightness.
5.1 Mechanical connection
In accordance with the general technical regulations for pressure gauges (e.g. EN 837-2
“Selection and installation recommendations for pressure gauges”).
When screwing the instruments in, the force required for sealing must not be applied through
the case, but only through the spanner ats provided for this purpose, and using a suitable
tool.
For parallel threads, use at gaskets, lens-type sealing rings or WIKA prole sealings at the
sealing face . With tapered threads (e.g. NPT threads), sealing is made in the threads ,
Installation with open-ended
spanner
5. Commissioning, operation
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