Gas Connections; Safety Instruction(S); Sample Gas Disposal - Siemens SIPROCESS GA700 Quick Start Manual

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 is
Note
Unstable display of the measured value
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.
3.3.1.1

Sample gas disposal

Note
Sample gas disposal
Make sure that the exhaust line is free from fast pressure fluctuations. To do so, take one of
the measures listed below:
● Install a special exhaust line.
● Install a damping vessel (> 1 l) with a downstream restrictor between the device and the
exhaust line (pneumatic low pass).
Quick Start
Compact Operating Instructions, 05/2015, A5E31805656-03
Observe the corresponding installation guidelines.
either equipped with a sample gas restrictor or with a clamping screw.
Combination operation
3.3 Gas connections
25