Liquid Level Control Monitoring Relay AC220V/AC380V 50/60HZ

A Liquid Level Monitoring Relay (LLMR) is a control and protection device designed to monitor and regulate liquid levels in tanks, reservoirs, and pipelines. It detects high, low, or intermediate liquid levels and triggers pumps, alarms, or valves to maintain safe and efficient operation. These relays are essential in water treatment plants, pumping stations, industrial process systems, and HVAC applications, ensuring reliable automation of liquid handling processes.

Key Benefits of Liquid Level Monitoring Relays

Reliable Level Detection

Accurately monitors high and low liquid levels, ensuring pumps and valves operate only when needed.

Prevents Dry Run & Overflow

Protects pumps from running without liquid and prevents tank overflow, reducing equipment damage and water wastage.

Easy Integration

Simple wiring, DIN-rail mounting, and adjustable sensitivity make installation and commissioning quick.

Versatile Applications

Suitable for conductive liquids like water, wastewater, and chemical solutions across industrial and commercial sectors.

Frequently Asked Questions – Liquid Level Monitoring Relay

What is a Liquid Level Monitoring Relay?

A Liquid Level Monitoring Relay is a device that senses liquid levels in tanks or pipelines and controls pumps, valves, or alarms to maintain safe operating levels.

How does a Liquid Level Monitoring Relay work?

• Uses probes or electrodes to detect liquid conductivity.
• Senses changes in resistance as liquid makes contact with probes.
• Activates or deactivates pumps/alarms based on programmed settings.

Why are Liquid Level Monitoring Relays important?

They automate liquid level management, prevent equipment failure, reduce water/energy wastage, and improve process safety.

What are the applications of Liquid Level Monitoring Relays?

GIC LLMRs are widely used in:

• Water treatment plants
• Wastewater management
• Pumping and irrigation systems
• Industrial process tanks
• Cooling and HVAC systems

Can LLMRs work with all liquids?

They are suitable for conductive liquids such as water, wastewater, and some chemical solutions. For non-conductive liquids, specialized sensors are required.

What factors should be considered when selecting a Liquid Level Monitoring Relay?

Key considerations include:

• Number of levels to be monitored (high/low/multi-level)
• Sensitivity range (resistance in kΩ)
• Supply voltage compatibility
• Type of liquid (conductive or non-conductive)
• Installation environment