Installation Instructions - WIKA PGT23.100 Betriebsanleitung

4. Installation instructions

4. Installation instructions
The pressure gauge must be installed in a shock-free way and positioned in order
EN
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 837-3 / 9.6.6 fig 7: 90° (⊥)
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Bottom entry pressure connection
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There must be a free space of at least 25 mm behind the housing to allow the
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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
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top of the housing before commissioning!
Permissible vibration load at the mounting point
The instruments should always be installed in locations free from vibration.
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If necessary, it is possible to isolate the instrument from the mounting point
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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:
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Unfilled devices:
Liquid filled devices:
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.
10
Frequency range < 150 Hz
Acceleration < 0.7 g (7 m/s²)
Frequency range < 150 Hz
Acceleration < 4 g (40 m/s²)
WIKA Operating Instructions intelliGAUGE family