M&C TechGroup SP2400-H Operator's manual - Manual (Page 31)

2-1.1-ME Gas sampling and gas conditioning technology 31
16.3.3 OPTION ELECTRICAL BALL VALVE DRIVE
The electrical ball valve drives for control of two operating modes are available in three control voltag-
es 230V, 115V or 24V DC.
Figure 15 Electrical connection for electrical ball valve drive
16.4 OPTION SOLENOID VALVE UNITS FOR BLOW BACK, TEST GAS FEEDING
AND CONTROL OF THE PNEUMATIC DRIVES
All solenoid valve units contain a 3/2-way solenoid valve for control of the pneumatic drive. One way of
the solenoid valve is used for switching the ball valve the other for ventilation and hence resetting the
ball valve. Furthermore depending on demand 2/2-way solenoid valves for blow back and/or test gas
feeding are existing.
N O T E !
Feed the back purge gas with a nominal width as big as possible in or-
der to avoid losses of pressure in the feeding line during the back
purge action.
The following solenoid valve units are for example available:
Solenoid valve unit 2
With 2 solenoid valves for control of 2 operating conditions:
1 x 3/2-way solenoid valve for switching from measurement operation to back purging or feeding of
test gas.
1 x 2/2-way solenoid valve for feeding of test gas or back purge gas