WIKA 111.11 - Manual (Page 3)

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 pressure gauge and
mounting the instrument on a suitable bracket.
■ If this is not possible, the following limit values must not be exceeded:
Dry gauges: Frequency range < 150 Hz
(Model 111) Acceleration < 0.7 g (7 m/s 2 )
Liquid-filled gauges: Frequency range < 150 Hz
(Model 113, 213) Acceleration < 4 g (40 m/s 2 )
The liquid filling must be checked on a regular basis.
The liquid level must not drop below 75 % of the gauge diameter.
4. Commissioning
During the commissioning process pressure surges must be avoided at all costs. Open the
shut-off valves slowly.
5. Maintenance and cleaning
■ 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.
■ Clean the pressure gauge with a moist cloth.
■ Repairs must only be carried out by the manufacturer or appropriately qualified skilled
personnel.
■ When dismounting, close the compensating valve (if available).
WARNING!
Residual media in dismounted pressure gauges can result in a risk to persons,
the environment and equipment.
Take sufficient precautionary measures.
Appendix 1: Declaration of conformity