Dual float switch for tank level control
A
Crydom International product story
Edited by the Engineeringtalk editorial team
Sep 10, 2002
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 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 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 120V DC/240V AC.
Versions are offered as standard with 50 or 100mm separations between floats, with either two make on rise or two break on rise contacts.
Custom variants to suit particular applications and tank sizes can also be offered from this low-cost and flexible design.
Made from a tough blend of glass re-enforced polyphenylene sulphide (PPS), the RSF66 range can withstand working temperatures up to 120C and offers excellent resistance to many aggressive chemicals and moisture ingress.
These devices 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.
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