WIKA PGS23 - 2 Design and Function; Scope of Delivery; Overview; Description

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 speci-
cally for applications in hazardous areas.
WIKA manufactures and qualies these instruments following EN 837 (gauge pressure),
DIN 16002 (absolute pressure), DIN 16003 (dierential 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 bae 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 ampliers with certied 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.

   



5Pressure gauges with inductive contact model 831, for hazardous areas
14320154.01 06/2019 EN/DE
EN
2. Design and function