Maintenance And Cleaning - WIKA 5 Serie Manual De Instrucciones

6. Commissioning, operation / 7. Maintenance and cleaning
Permissible ambient and operating temperatures
When mounting the instrument it must be ensured that, taking into considera-
tion the influence of convection and heat radiation, no deviation above or below
the permissible ambient and medium temperatures can occur. The influence of
temperature on the indication accuracy must be observed.
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 instru-
ment 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
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.
Commissioning
During the commissioning process pressure surges must be avoided at all costs.
Open the shut-off valves slowly.

7. Maintenance and cleaning

7.1 Maintenance
The instruments are maintenance-free. The indicator should be checked once or
twice every year. For this the instrument must be disconnected from the process
to check with a pressure testing device.
Repairs must only be carried out by the manufacturer or appropriately qualified
skilled personnel.
WIKA operating instructions pressure gauge model 5 per ATEX
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EN
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