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Selex™ PCB Mount Liquid Sensors

• For use with either standard or OEM designed metallic electrodes, one of which can be the liquid container
• Uses metallic probes to sense liquid by detecting free ions
• High immunity to probe deposits
• PCB mounting, high or low liquid level sensing
• Built in delay to avoid spurious switching
• Full galvanic isolation

Liquid Level Relays are used to monitor the levels of conductive liquids, and are available in Up/Down, Minimum, Maximum, and Fill/Empty variations. Liquid Level Relays are straightforward to install and safe to use.

Application Examples

Liquid Level Relays (Conductive Level Sensors) are used in a wide variety of applications including waste water management and the monitoring and management of corrosive liquid media, and designed specifically to provide for the:

• Monitoring and control of liquid levels
• Protection of pumps against dry running
• Ability to detect liquid leaks in a system
• Control of media mixing ratios
• Control of liquid levels

Notes

230V high and low level versions have a full-wave-rectified dc output which can be used to directly drive small relays or solenoids (maximum inrush 20VA), and built-in time delays to avoid spurious switching.