Gas Connections; Restrictors/Clamping Screws; Safety Instructions - Siemens SIPROCESS GA700 Operating Instructions Manual

Connecting

7.2 Gas connections

7.2 Gas connections
Safety information
Possible leakages of gas path
Tighten the clamp ring screwed glands in accordance with the mounting specifications of the
manufacturer using a suitable open-ended wrench. In the process, make sure that you
counter properly. Otherwise, there is a danger that the gas path will leak.
Danger of poisoning by escaping gas
Components which come into contact with the sample gas must be resistant to it. Otherwise,
there is a danger that the gas path will leak.
Introduction of toxic, aggressive or flammable gases
The limited release of toxic or corrosive gases cannot be avoided with absolute certainty.
Flush the device with oil-free and dry purge air or inert gas.
Collect the emerging purge gas for environmentally-friendly disposal with a suitable device.
7.2.1

Restrictors/clamping screws

7.2.1.1

Safety instructions

NOTICE
Leaky gas connections
A gas-tight connection cannot be achieved if you install the clamping ring connections before
a sample gas restrictor or clamping screw was screwed onto the connecting socket. The gas
connection is irreversibly leaky.
● Observe the information provided by the manufacturer of the clamping ring connections.
● Before you install the clamping ring connections, make sure that the connecting socket is
92
WARNING
WARNING
WARNING
Observe the corresponding installation guidelines.
either equipped with a sample gas restrictor or with a clamping screw.
Rack-mounted device
Operating Instructions, 05/2015, A5E31874006-03