EN
WIKA operating instructions pressure gauge, model 2 per ATEX 25
14375375.01 12/2019 EN/DE
6.4 Permissible ambient and operating temperatures
When mounting the pressure gauge it must be ensured that, taking into
consideration the inuence of convection and heat radiation, no devia-
tion above or below the permissible ambient and media temperatures
can occur. The inuence of temperature on the indication accuracy must
be observed.
6.5 Permissiblevibrationloadattheinstallationsite
The instruments should always be installed in locations free from vibra-
tion.
If necessary, it is possible to isolate the instrument from the mounting
point, e.g. by installing a exible 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 (approx. 5 m/s2)
6.6 Levelcheck
For lled instruments, the level must be checked on a regular basis.
The liquid level must not drop below 75 % of the instrument diameter.
6.7 Commissioning
Pressure surges must be avoided at all costs, open the shut-o
valves slowly.
The instrument must not be subjected to any external loading
(e.g. use as a climbing aid, support for objects).
6. Commissioning, operation
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