WIKA PGS21 - Manual (Page 14)

WIKA operating instructions models PGS10, PGS11 and PGS21 14
Requirements for the installation point
If the measuring point is not adequately stable a measuring instrument
support such as a bracket or flange should be used for fastening (and
possibly via a flexible capillary line). If the pressure gauge is exposed to
vibration or pulsating pressure or both, then a liquid filled pressure gauge
may provide considerably better performance and readability. Instruments
should be protected against coarse dirt and wide fluctuations 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 influence of convection and heat radiation, no deviation
above or below the permissible ambient and medium temperatures can
occur. The influence 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 "liquefied
gases"
dry air
moist air, flue
gases
Steam
Pressure
gauge above
the tapping
point
Pressure
gauge below
the tapping
point
11581752.02 09/2013 GB/D/F/E
GB