WIKA PGS23.063 - Manual (Page 12)

WIKA operating instructions model 232.3x.063 with 851 per ATEX 12
GB
11041781.03 03/2011 GB/D/F/E
6. Commissioning, operation
The torque depends on the seal used. Connecting the gauge using a clamp
socket or a union nut is recommended, so that it is easier to orientate the
gauge correctly. When a blow-out device is fitted to a pressure gauge, it
must be protected against being blocked by debris and dirt.
Installation
■ Nominal position per EN 837-1 / 9.6.7, figure 9: 90° ( )
■ Process connection bottom or rear
■ In order to ensure that pressure can be safely and reliably vented
through the case back, a distance of at least 25 mm must be left free
behind the case!
■ In order to avoid any additional heating, the instruments must not be
exposed to direct solar irradiation while in operation!
Permissible vibration load at the installation site
■ The instruments should always be installed in locations free from
vibration
■ If necessary, it is possible to isolate the instrument from the mounting
point by installing a flexible connection line between the measuring
point and the pressure gauge and mounting the instrument on a suitable
bracket.
■ If this is not possible, the following limit values must not be exceeded:
Frequency range < 150 Hz
Acceleration < 0.5 g (5 m/s 2 )
Commissioning
During the commissioning process pressure surges must be avoided at all
costs. Open the shut-off valves slowly.
Sealing face 
Spanner flats Sealing in the
thread 