Wika 233.50 User Manual download pdf (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 instal-

ling 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 232) Acceleration < 0.7 g (7 m/s

)

Liquid-filled gauges: Frequency range < 150 Hz

(Model 233) Acceleration < 4 g (40 m/s

)

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 and switching function should be checked once or twice every year. The

gauge 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

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Wika 233.50 User Manual Page 3