Dual float switch for tank level control
5 Sep 2002
Crydom Magnetics has introduced a liquid level sensor that solves the problem of controlling the filling and emptying of tanks where no microprocessor control is available.
Crydom Magnetics has extended its range of vertical mount liquid level sensors, solving the problem of controlling the filling and emptying of tanks where no microprocessor control is available.
The new RSF66 addition features two independent switches and floats combined into one vertical stem, which can be easily wired to control pump circuits via simple electromechanical relays. Each float switch is rated at 25VA with maximum switching voltage of 120VDC/240VAC.
Versions are offered as standard with 50mm or 100mm separations between floats, with either 2 make on rise or 2 break on rise contacts. Custom variants to suit particular applications and tank sizes can also be offered.
Made from a tough blend of glass re-enforced polyphenylene sulphide (PPS), the RSF66 range can withstand working temperatures up to 120 degrees C and offers resistance to many aggressive chemicals and moisture ingress. The devices all carry WRAS and UL approvals.
A suggested latching circuit diagram for tank level control using the RSF66 can be downloaded free from Crydom’s website.
