Design And Function; Overview; Description; Scope Of Delivery - WIKA 831 Manual De Instrucciones

2. Design and function

2. Design and function

2.1 Overview

Example, model PGS23.100, version "S1" per EN 837
Laminated safety glass

Pressure element

Plug of the blow-out device

Pressure compensating valve

Electrical connection with cable box

Set pointer

Adjustment lock

Process connection


2.2 Description

These pressure gauges with inductive
contact(s) have been designed specifi-
cally for applications in hazardous areas.
WIKA manufactures and qualifies these instruments following EN 837 (gauge pressure),
DIN 16002 (absolute pressure), DIN 16003 (differential pressure) and DIN 16085 (switch
contacts) in the versions "S1" and "S3".
Version "S1" per EN 837
This version is designed with a blow-out device at the case.
Safety version "S3" per EN 837
This version is made up of laminated safety glass, a solid baffle wall between measuring
system and dial and a blow-out back. In the event of a failure, the operator is protected at the
front side, as media or components can only be ejected via the back of the case.
Switch contact model 831
The built-in electrical inductive contacts are non-contact slot-type inductive proximity
sensors, which are powered from switching amplifiers with certified intrinsically safe circuits.
On exceeding the adjustable limit values, their output circuits are either opened or closed.

2.3 Scope of delivery

Cross-check scope of delivery with delivery note.
Pressure gauges with inductive contact model 831, for hazardous areas
 

 
5
EN
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
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