Siemens 243-0020 Lowest Pressure Signal Selector,
The 243 Lowest Pressure Signal Selector is a dual
input, single output logic device for use in pneumatic
control systems.
Applications
The 243 Lowest Pressure Signal Selector is use where
two input air signals must compare and the lowest of
the two signals transmitted to another logic or final control
device. The 243 Lowest Pressure Signal Selector can also
use as a direct acting amplifying relay.
