Babbitt Liquid Level Gauge - Manual (Page 14)

PS-2 PNEUMATIC SWITCH
DESCRIPTION
The PS-2 is a pneumatic switch designed to control air and natural gas from 15 to 100 psi. The
PS-2 is rotary cam activated and incorporates a non-bleed switch. When the float passes, the
cam rotates and latches the switch in the open position. This will allow unobstructed airflow.
When the float moves back in the opposite direction the switch unlatches and blocks the airflow.
The non-bleed design of the PS-2 makes it ideal for controlling applications requiring natural
gas. The PS-2 can also be used to control pneumatic alarms, pumps and valves. Refer to
interconnect diagram for connections and mounting instructions.
PS-2 SPECIFICATIONS
Deadband 0.7 inch
Max. Temperature 300°F
Min. Temperature 0°F
Supply Pressure @ 70°F 15 -100 psi
Supply Pressure @ 300°F 15 - 35 psi
(Dry, Filtered air or gas)
Housing 316SS, Nema 4
PS-2H SPECIFICATIONS
Deadband 0.7 inch
Max. Temperature 450°F
Min. Temperature 0°F
Supply Pressure @ 70°F 15 - 100 psi
Supply Pressure @ 450°F 15 - 60 psi
(Dry, Filtered air or gas)
Housing 316SS, Nema 4
Note: Refer to Appendix A for further details.