Floatless Level Control Relay

Detailed Description:
This Floatless Level Control Relay is a compact, high-reliability control unit designed to monitor and regulate liquid levels in storage tanks, reservoirs, water towers and similar systems without the use of mechanical floats. Using electrode or sensor technology it detects the presence or absence of conductive liquid and triggers pump or valve action accordingly. 

Key features include:

• Suitable for automatic water supply or drainage control applications. 

• Operates on standard AC supply (e.g., 110 V or 220 V, 50/60 Hz) depending on model. 

• Uses a sensing electrode arrangement rather than a mechanical float, which means fewer moving parts, longer life and higher reliability. 

• Includes LED indication for operational status, built-in surge and lightning protection in many models. 

• Capable of controlling a pump or valve via relay contacts when the liquid level reaches or drops below a preset point. 

Applications and notes:
Ideal for use in water treatment plants, chemical processing tanks, food & beverage level control, building services (e.g., sump tanks), sewage and wastewater level monitoring. Because the principle relies on the liquid’s conductivity or dielectric properties, it is best suited for conductive fluids (for non-conductive liquids or explosive environments, alternative sensors may be required). rel

Maintenance & installation tips:

• Ensure correct supply voltage and wiring (e.g., select correct 110 V or 220 V version).

• Use appropriately rated electrodes and spacing for the liquid type and installation environment.

• Periodically inspect probe/electrode condition (especially in harsh or corrosive liquids) to maintain reliable sensing.

• When installing in deep or remote tanks, consider models designed for long-distance cable runs or remote sensing.