Operating Modes: Selection Of Operating Mode; Gas Connections; Safety Instruction(S) - Siemens SIPROCESS GA700 Operating Instructions Manual

See also
References (Page 141)
Pressure operation/Suction operation
The analyzer modules can also be operated in pressure operation and in suction operation:
● Pressure operation: For sample gas supply, only the overpressure of the sample gas from
the gas line or gas cylinder is used.
● Suction operation: The sample gas is sucked away by a downstream pump.
The mounting position of the sample gas restrictor can be derived from the operating modes
selected for the specific application.
3.7.2.2

Operating modes: Selection of operating mode

Selection of operating mode
The operating modes selected for the specific application result in the following consequences:
● The mounting positions of sample gas restrictors or clamping screws at the sample gas
connections must be checked and changed, if necessary. Additional information is available
at: → Conditions for use/installation (Page 48).
● The parameter assignment of the gas path must be adapted accordingly. Additional
information is available in the operating manuals: → References (Page 141).
● It may be necessary to adjust the signal frequency of the module combination accordingly.
Additional information is available in the operating manuals: → References (Page 141).
3.7.3

Gas connections

3.7.3.1

Safety instruction(s)

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
Rack-mounted device
Operating Instructions, 05/2015, A5E31874006-03
Observe the corresponding installation guidelines.
either equipped with a sample gas restrictor or with a clamping screw.
Description
3.7 Combined operation
43