Operator's manual User Manual

32 Gas sampling and gas conditioning technology 2-1.1-ME
Figure 16 Connections solenoid valve unit 2
Solenoid valve unit 3
With 3 solenoid valves for control of 2 operating conditions:
1 x 3/2-way solenoid valve for switching over from measuring operation to back purging for eg. option
/3VA
1 x 2/2-way solenoid valve for feeding of test gas via option /R
1 x 2/2-way solenoid valve for feeding of back purge gas