Commissioning, Operation; Mechanical Connection - WIKA DELTA-plus 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 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 pressure connection in accordance
with EN 837-3 (section 7.3.2).
Prior to the installation of the pressure gauge, clean the measuring lines
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thoroughly by tapping and blowing or rinsing
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 pressure gauge, which
will enable the replacement of the pressure gauge and a zero point check while
the plant is running. The instruments should be protected against coarse dirt
and wide fluctuations in ambient temperature.
Correct sealing of the connections must be made using suitable flat gaskets,
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sealing rings or WIKA profile sealings. In order to orientate the gauge so that
the on-site display can be read as well as possible, a clamp socket or union nut
should be used. When screwing on and unscrewing the pressure gauges they
should not be gripped by the case, but rather only on the spanner flats of the
connection!
WIKA operating instructions DELTA-plus, DELTA-comb and DELTA-switch
EN
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