Wika 632.51 Instrukcja Użytkownika Pobierz pdf (Strona 10)

2089436.03 12/2010 GB/D/F/E

WIKA operating instructions pressure gauge model 6 per ATEX

6. Commissioning, operation

Installation

 Nominal position per EN 837-3 / 9.6.7 Figure 9: 90° (

⊥ )

 Process connection: lower mount (LM) or model 63X.50 back mount (BM)

 After mounting, set the compensating valve (if available)

from CLOSE to OPEN.

 In order to avoid any additional heating, the instruments must not be exposed

to direct solar irradiation while in operation!

Admissible ambient and working temperatures

When mounting the pressure gauge it must be ensured that, taking into

consideration the inuence of convection and heat radiation, no deviation above

or below the permissible ambient and medium temperatures can occur. The

inuence of temperature on the display 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 exible connection line between the measuring point and the

pressure gauge and mounting the instrument on a suitable bracket.

 Liquid-lled gauges (model 633.50) may only be used within the following

limits:

Frequency range < 150 Hz and

Acceleration < 0.5 g (5 m/s

)

The liquid lling must be checked on a regular basis.

The liquid level must not drop below 75 % of the gauge diameter.

Commissioning

During the commissioning process pressure surges must be avoided at all costs.

Open the shut-o valves slowly.

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Wika 632.51 Instrukcja Użytkownika Strona 10