Safety Instructions; General; Operating Principle - WIKA DELTA-plus Mode D'emploi

1. Safety instructions ... 3. Operating principle

1. Safety instructions

The appropriate national safety regulations (i.e. VDE 0100 /
!
EN 60 079-14 / EN 837-) must be observed when installing,
commissioning and operating these instruments.
GB
Caution
Do not work on gauge while under voltage (applies to Model 70.0/03.100

and 851.0.100)
Serious injuries and/or damage can occur should the appropriate regulations

not be observed
Only appropriately qualified personnel should work on these instruments


2. General

These operating instructions are based on the following information:
EN 837-: Selection and installation recommendations for pressure gauges

Data sheet PM 07.15: Differential pressure gauge with integrated working

Data sheet PV 7.16: Differential pressure gauge with integrated working

Data sheet PV 7.17: Differential pressure switch sv


3. Operating principle

The j and i measuring medium chambers
are separated by an elastic diaphragm.
The differential pressure causes an
axial movement (measured travel) in the
diaphragm against the measuring range
spring. The measured travel is proportional
to the differential pressure and is trans-
mitted, „pressure sealed" and with minimal
friction, via a connecting rod; for:
to the movement
su
to the movement
st
and in addition to the plungers
on the microswitches
to the plungers
sv
on the microswitches
4
pressure gauge su Model 70.01.100
pressure gauge and micro switch
Model 70.0.100
Model 851.0.100
WIKA Operating instructions DELTA-plus, DELTA-comb and DELTA-switch
T
Illustration for example
st