WIKA DPS40 User Manual
Page 10
GB
WIKA operating instructions DELTA-plus, DELTA-comb and DELTA-switch
10
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
1
and p
2
act on the media chambers ⊕ and ⊖, which are separated by
an elastic diaphragm (1).
The differential pressure (∆p = p
1
- p
2
) leads to an axial deflection of the
diaphragm against the measuring range springs (2).
The deflection, which is proportional to the differential 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.
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⊖
⊕