Radar Level Transmitter

Accurate liquid level measurement is significant for industrial safety and stability. And that’s where radar level transmitters come into play. These transmitters are widely used for their precision and reliability, using electromagnetic waves to measure the distance between the liquid surface and the sensor through transmitted and received microwave signals.

Working Principle of Radar Level Transmitter

Have a look at how a radar level transmitter works:

• The radar level transmitter emits microwave signals to the surface of the liquid.
• A part of that signal reflects back, forming a return signal.
• Then the receiver receives the echo signal, and calculates the time required to transmit the signal to return to the echo signal; the time to flight.
• After that, the time to flight is multiplied by the speed of signal propagation to calculate the distance between the surface of the liquid and the sensor.
• Lastly, the calculated distance is converted to a level measurement and is shown on a display or control system.

Key Points in the Operational Process

Have a look at the additional operational process of how guided wave radar level transmitters work:

• The radar level transmitter continuously sends and receives signals to ensure real-time monitoring of the liquid level in the settling tank.
• By monitoring changes in the liquid level, it is possible to understand the progress of the settling process and wastewater treatment, so that appropriate measures can be taken to adjust the treatment process.
• It is necessary to pay attention to the reflection of the signal on the surface of the liquid, while avoiding the interference of the signal by factors such as air bubbles, foam or turbidity of the sewage.

Features and Benefits of Radar Level Transmitter

Here are the key features and benefits of radar level transmitters:

• Operates without contact, avoiding contamination or wear.
• Performs reliably despite dust, steam, smoke, and temperature or pressure variations.
• Ideal for measuring liquids and solids in industries such as food, chemical, and mining.
• Ensures accurate and consistent data for effective process monitoring and control.

Applications of Radar Level Transmitter

Radar level transmitters are commonly used in various industrial scenarios where precise measurement of liquid levels is required, including but not limited to the following areas.

• In the oil and gas industries, guided wave radar level transmitters are used for level monitoring in tanks, storage tanks, pipelines, etc., to help control the storage, transportation and handling of oil and liquid gases.
• In chemical plants and process installations, they are used to monitor the level of chemicals in storage tanks, reactors, tanks, or pipelines.
• In the food and beverage industry, the transmitters are used to keep a track of the level of tanks or troughs in food production, such as the storage of raw materials in brewing, dairy, or beverage production.