WIKA 4x2.30.1x0 Series, Руководство по эксплуатации

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13 WIKA operating instructions pressure gauge, model 4 per ATEX
2080276.08 08/2019 EN/DE
EN
WARNING!
The actual maximum surface temperature depends not on the equipment
itself, but mainly on the operating conditions. With gaseous substances, the
temperature may increase as a result of compression warming. In these cases
it may be necessary to throttle the rate of change of pressure or reduce the
permissible medium temperature.
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, e.g. by installing
a flexible connection line between the measuring point and the instrument 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 of pressure compensating valve
Instruments which are fitted with a pressure compensating valve
must, following installation, be vented for internal pressure compen-
sation.
Tool: Open-ended spanner SW 9
1. Remove plastic cap
2. Loosen the threaded connection above the valve body
3. Screw the valve body tight, turned through 180°, with ≤ 4.5 Nm
For information on the ingress protection, see Technical information
IN 00.18
Level check
For filled instruments, the level must be checked on a regular basis.
The liquid level must not drop below 75 % of the instrument diameter.
6.2 Commissioning
During the commissioning process pressure surges must be avoided at all costs. Open the
shut-off valves slowly.
After commissioning
Before commissioning
6. Commissioning, operation