WIKA PGT43.100 - Manual (Page 10)

GB
4. Installation instructions
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97
64 05/
009 GB/D/F/E
WIKA Operating Instructions intelliGAUGE family 10
4. Installation instructions
The pressure gauge must be installed in a shock-free way and positioned in
order to be clearly visible. We recommend connecting an interlocking device
between the pressure tapping point and the pressure gauge, enabling the
measuring device to be changed and to allow the zero point to be checked with
the plant still running.
Installation
Nominal position in accordance with EN 87- / 9.6.6 fig 7: 90° ( ⊥)
Bottom entry pressure connection
There must be a free space of at least 5 mm behind the housing to allow
the pressure to be safely and reliably vented through the rear wall in the
event of a fault!
To avoid supplementary heating, the instruments must not be exposed to
direct sunlight during operation!
With filled variants, open the vent valve (with pressure ranges ≤ 10 bar) on
the top of the housing before commissioning!
Permissible vibration load at the mounting point
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:
Unfilled devices: Frequency range < 150 Hz
Acceleration < 0.7 g (7 m/s²)
Liquid filled devices: Frequency range < 150 Hz
Acceleration < 4 g (40 m/s²)
Check the liquid filling at regular intervals.
The liquid level must not drop below 75 % of the instrument‘s diameter.
Test connector
Local safety codes such as those for pressure or steam vessels may specify
isolating devices to enable on-site testing of the pressure instrument.
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