Wika DPS40 Manual do Utilizador descarregar pdf (Página 10)

WIKA operating instructions DELTA-plus, DELTA-comb and DELTA-switch10

14093265.01 03/2014 GB/D/F/E

4. Design and function

4.1 Description

4. Design and function

DELTA-plus model DPG40

Pressures p

and p

act on the media chambers ⊕ and ⊖, which are separated by

an elastic diaphragm (1).

The dierential pressure (∆p = p

- p

) leads to an axial deection of the

diaphragm against the measuring range springs (2).

The deection, which is proportional to the dierential pressure, is transmitted to

the movement (4) in the indicating case via a pressure-tight and low friction rocker

arm (3).

Overpressure safety is provided by metal bolsters (5) resting against the elastic

diaphragm.

14077369.01

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Wika DPS40 Manual do Utilizador Página 10