Wika 233.50 User Manual download pdf (Page 13)

2080268.06 02/2013 GB/D/F/E

WIKA operating instructions pressure gauge, model 2 per ATEX

6. Commissioning, operation

pressure gauge, it must be protected against being blocked by debris

and dirt.

With safety pressure gauges (see dial symbol

) ensure that the free

space behind the blow-out back is at least 15 mm.

Requirements for the installation point

If the measuring point is not suciently stable a measuring instrument

support such as a bracket or ange should be used for fastening

(possibly via a exible capillary). If vibrations cannot be avoided by

taking suitable measures during installation, liquid-lled instruments

should be used. Instruments must be protected against coarse dirt and

wide uctuations in ambient temperature.

Installation

 Nominal position per EN 837-1 / 9.6.7 Figure 9: 90° ( ⊥ )

 Process connection lower mount (LM) or 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!

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Wika 233.50 User Manual Page 13