Displacer level switch

Displacer level switch is used where High temperature and High Pressure liquid level control is required. It gives potentional free 5A@250VAC 1C/0 or 2C/0 contacts for direct interface to Solinoide Valves, Relays Contactors, and Panel Lamps etc. It consists of a displacer, process flange, spring, enclosure, actuator & microswitch, flexible wire rope. Displacer is designed to suit the specific gravity of liquid. Displacer is connected to a coupler by flexible wire rope through a compression spring. The level of liquid inside the vessel or tank is indicated by the movement of the displacer. It works on the Archimedes principle. Displacer moves up & down with the rising or falling liquid level. As the liquid level rises it applies a buoyant force on the coupler in proportion to displaced liquid. It releases the spring & moves the actuator in the magnetic field to actuate the switch. As the liquid level falls spring gets its normal position & the switch releases.