Obsolete 732.51.2170 Instructions D'utilisation page 9

10. Optional extras / Accessories
Mounting of alarm contacts
First the snap fit style bezel with sealing ring and the window of the measuring instrument
have to be removed. Prior to attaching the transparent hood to the measuring instrument,
the contacts must be adjusted in accordance with their operating range.
Using the magnetic snap-action contact, the magnetic retention force must be adapted to
the conditions relating to the specific instrument by adjusting (twisting) the screw-in
magnet. The magnet must then be protected against unintentional adjustment by using an
appropriate protection lacquer.
The small plate spring at the flexible contact arm must be angled accordingly.
The fully adjusted unit must now be attached to the measuring instrument together with the
snap fit bezel and aligned to the extent that the fork coupling guiding the flexible contact
arms grips over the instrument pointer of the measuring instrument without touching the
dial. Should this occur, the carrying fork must be shortened by means of an appropriate
cutting tool.
The contacts are best adjusted if they are supplied together with the pressure gauge.
By snapping the bezel onto the case the whole contact unit will be mounted within the
pressure gauge.
Wiring details
Magnetic snap-action contacts:
As counterpart to the plug socket welded onto the transparent hood
T Plug with PG 7 cable gland, 3-pin + l
T 3-pin plug + l , with 2 m cable 4 x 0.75 mm
Inductive contacts:
T 4-pin low voltage plug with 2 m cable 4 x 0.75 mm
All plugs (in plugged-in and protected condition) correspond to ingress protection IP 65.
Versions
Single and double magnetic snap-action contacts or
single and double inductive contacts
10.3 Capacitive transmitters with magnetic-field dependent sensor and amplifier
Remote transmission of pressure values in the form of an electric signal. The output signals
can either be carried out by means of
T 2-wire system 4 ... 20 mA (also
3-wire system 0 ... 20 mA
T
Please refer to data sheet AE 08.02 as well as to the operating instructions for pressure
transmitters with local readout model 891.34. or
and construction details.
WIKA Operating instructions compact differential pressure gauge
2
2 (without grounded conductor)
-intrinsically safe) or
-class model 892.34 for technical data
GB
9