Vacuum switches
Designed to provide one closed contact when vacuum in the system is too low or too high.
General Info
Low vacuum switch type M 3211 C with sensor is designed to provide one closed contact when vacuum is lost in the system.
The switch will activate when vacuum is lower than – 0,2 bar.
High vacuum switch type M 3220 C with sensor is designed to provide one closed contact when vacuum is high and when both ejector and vacuum regulator are in operation. The switch will activate when vacuum is higher than – 0,4 bar.
INSTALLATION
Vacuum switch must be mounted vertical to a wall convenient to point vacuum monitoring. High vacuum switch should be mounted as close to vacuum regulator as practical. Low vacuum switch should be mounted between manual or automatic gas flow control valve and ejector.
Technical Data
Model: M 3210
Low vacuum switch: when vacuum < – 0. 2 bar
Model: M 3220
High vacuum switch: when vacuum > – 0. 4 bar
