WIKA operating instructions models PGS10, PGS11 and PGS21
13
Requirements for the installation point
If the measuring point is not adequately stable a measuring instrument
support such as a bracket or ange should be used for fastening (and
possibly via a exible capillary line). If the pressure gauge is exposed to
vibration or pulsating pressure or both, then a liquid lled pressure gauge
may provide considerably better performance and readability. Instruments
should be protected against coarse dirt and wide uctuations in ambient
temperature.
Installation
Nominal position per EN 837-1 / 9.6.7 Figure 9: 90° ( ⊥ )
Process connection bottom or rear!
In order to avoid any additional heating, the instruments must not be
exposed to direct solar irradiation while in operation!
Measuring assemblies
Proven measuring assemblies for various types of media.
7. Commissioning, operation
Admissible ambient and working temperatures
When mounting the pressure gauge it must be ensured that, taking into
consideration the inuence of convection and heat radiation, no deviation
above or below the permissible ambient and medium temperatures can
occur. The inuence of temperature on the display accuracy must be
observed.
liquid media gaseous media
Filling of the
capillary
liquid
liquid with
vapour
vapour only gaseous wet gas
liquid gas
condensate
Examples
condensate boiling liquid
"liqueed
gases"
dry air
moist air, ue
gases
Steam
Pressure
gauge above
the tapping
point
Pressure
gauge below
the tapping
point
11581752.01 07/2010 GB/D/F/E
GB
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