Safety Instructions For Hazardous Areas; Connection Information - Siemens SIPROCESS GA700 Compact Operating Instructions

Connecting
5.1 Gas connections
5.1.2

Safety instructions for hazardous areas

Introduction of combustible media in OXYMAT 7
Explosion hazard
The introduction of combustible media in OXYMAT 7 can lead to an explosion.
• Install suitable flame arresters in the sample gas and reference gas paths directly at the
Loose lines or open purging gas connections at the wall-mounted device (operation with
types of protection Ex t and Ex ec)
Danger of explosion in hazardous areas
In the case of operation with the types of protection Ex t and Ex ec, purging gas connections
(connection nozzles) must always be closed.
• Close all openings, such as purging gas connections, with Swagelok pipe plugs (SS-12MO-
• Ensure sure that all lines to be connected are secured in place.
5.1.3

Connection information

Pipe connections
The gas paths in explosion-proof devices are implemented with pipes.
Gas connection
Sample gas
Reference gas
Identifier of the gas connections
The identifier of the gas connections is imprinted as numbers 1 to 4 on the module plate.
36
DANGER
device.
WARNING
C, included in scope of delivery).
Material
Stainless steel Mat. No. 1.4404
or Hastelloy Material No. 2.4819.
Stainless steel Mat. No. 1.4404
Compact Operating Instructions, 01/2022, A5E35134047-11
Connection external diameter
6 mm
6 mm
Devices in explosion-proof design