51B Baratron® – MKS

51B Baratron® Single-end, Absolute Pressure/Vacuum Switch

The MKS Instruments 51B Single-end Pressure Switch offers accurate and reliable protection for vacuum vacuum/pressure processes. Designed for applications where a DC signal output is not required, these switches provide relay outputs that are readily interfaced with alarms, valve actuators, computers, process controllers, load locks and other protection devices. The 51B is referenced to vacuum.

The 51B is obsolete.  Refer to 51C for replacement.