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

Combination operation

3.3 Gas connections

3.2.3

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/mounting (Page 23).
● The parameter assignment of the gas path must be adapted accordingly. Additional
information is available in the operating manuals: → Table A-3 References 3 - Operating
Instructions (Page 108).
● It may be necessary to adjust the signal frequency of the module combination
accordingly. Additional information is available in the operating manuals: → Table A-3
References 3 - Operating Instructions (Page 108).
3.3 Gas connections
3.3.1

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
Note
Unstable measured value display due to pressure surges
Pressure surges can result in unstable measured value displays when the sample gas flow is
superimposed by fast pressure fluctuations or a sample gas pump delivers sample gas into
the device. To protect the device from pressure surges, we recommend that:
• You use the supplied sample gas restrictors.
• Use a pneumatic low-pass filter (restrictor and damping vessel), if necessary.
18
Observe the corresponding installation guidelines.
is either equipped with a sample gas restrictor or with a clamping screw.
Compact Operating Instructions, 06/2017, A5E31805656-05
Quick Start