Commissioning, Operation; Mechanical Connection - WIKA DPGS40TA Mode D'emploi

6. Commissioning, operation

6. Commissioning, operation

6.1 Mechanical connection

In accordance with the general technical regulations for pressure gauges (e.g.
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EN
EN 837-2 "Selection and installation recommendations for pressure gauges").
Mounting of the pressure connections according to affixed symbols, ⊕ high
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pressure, ⊖ low pressure
Mounting by means of:
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- rigid measuring line or
- wall mounting with available mounting links
Process connections 2 x G 1/4 female, lower mount (LM), in-line, centre
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distance 26 mm, operating position NL 90 (nominal position) per DIN 16257
(i.e. vertical dial), design the threads of the connection shanks in accordance
with EN 837-3 (section 7.3.2).
Prior to the installation of the instrument, clean the measuring lines thoroughly
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by tapping and blowing or flushing.
Protect measuring instruments from contamination and high temperature
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changes!
The pressure gauge must be mounted free from vibration and should be
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aligned so that it is easy to read. It is recommended that an isolation device is
interposed between the pressure tapping point and the instrument, which will
enable the replacement of the instrument and a zero point check while the plant
is running. The instruments should be protected against coarse dirt and wide
fluctuations in ambient temperature.
For sealing the connections, use flat gaskets, lens-type sealing rings or WIKA
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profile sealings. In order to orientate the gauge so that the on-site display can
be read as well as possible, a connection with clamp socket or union nut should
be used. When screwing on and unscrewing the instruments they should not be
gripped by the case, but rather only on the spanner flats of the connection!
Wall mounting
Mounting using three integrally cast mounting lugs
20 WIKA operating instructions DPGS40TA with component testing