GB
Installation instructions / 4. Installation and commissioning
2279453 08/2009 GB/D/F
WIKA Operating Instructions Differential Pressure Transmitter DELTA-trans
6
Piping
The piping should be arranged and fitted so that it can withstand the
stresses caused by expansion, vibration and the influence of heat. When
the media is gaseous, a water drain point should be provided at the lowest
point. For liquid pressure media, an air bleed should be provided at the
highest point.
4. Installation and commissioning
Correct sealing of pressure connections should be achieved by means of
suitable sealing rings, sealing washers or WIKA profile seals.
If the pressure transmitter is positioned lower than the pressure test connec-
tion, the tailpipe should be thoroughly cleaned prior to fitting the transmitter.
Once the pressure and electrical connections have been made, the transmitters
are ready for immediate use.
No attempt should be made to remove a pressurised transmitter. If the trans-
mitter cannot be otherwise isolated, the pressure system must be fully vented.
Any residual pressure medium contained in the pressure element may be
hazardous or toxic. This should be taken into account when handling and
storing pressure gauges which have been removed.
