Radar Level Transmitters

An Endress+Hauser level transmitter is a non-contact industrial sensor that uses high-frequency radar pulses to continuously measure the level of liquids, pastes, and slurries in tanks. It works by emitting a signal and measuring the time it takes for the reflection to return, which is proportional to the distance to the product surface. These radar level transmitters are known for being maintenance-free and unaffected by properties like density, conductivity, or environmental conditions such as dust or temperature changes.

How Do Radar Level Transmitters Work?

Here is the step-by-step process of how an E&H level transmitter works:

• First, the E&H Micropilot transmitters are placed at the top of a tank.
• Then it will start sending a series of radar pulses downward into the vessel.
• That pulses reflect off the product surface.
• After that, the transmitter catches those pulses and measures the time-to-flight to calculate the distance to the surface.
• Lastly, this distance is then used to calculate the level within the tank.

Benefits of Radar Level Transmitters

Have a look at the benefits of E&H’s Micropilot radar level transmitter:

• These transmitters cut setup time and human error while enabling remote operation via smartphone or tablet to reduce staff exposure to hazards.
• Non-contact measurement reliably handles various liquids and solids, even aggressive or explosive types, unaffected by pressure, temperature, or air turbulence.
• The E&H’s transmitters offer Heartbeat Technology that allows on-demand verification and diagnostics guided through the wizard without process interruption.
• The latest E&H transmitter uses 80 GHz technology for higher accuracy and works well in narrow tanks. While features like the Radar Accuracy Index (RAI) help optimize processes.
• The HistoROM data management concept simplifies commissioning and maintenance by storing all device and process data.
• Some transmitters, like the FWR30, offer cloud connectivity for remote inventory management and can integrate with other systems for data analysis and predictions.

Key Features of Radar Level Transmitters

Endress+Hauser radar transmitters offer several features that make them effective for industrial use:

• Many models, especially the newer ones with 80 GHz sensors, can achieve accuracies of ±1 mm.
• Since the sensor does not touch the medium, there are no moving parts to wear out or be contaminated.
• The measurement is largely unaffected by changes in process temperature, pressure, vapor, or density. The latest models with higher frequencies, such as 80 GHz, are also highly effective at ignoring foam and build-up on tank walls.
• The latest models of E&H transmitters, like the Micropilot series, can be configured and operated remotely via Bluetooth or the app. Then there are some models that also offer cloud-based IIoT capabilities for logistics and inventory tracking.
• The Micropilot range offers models for demanding uses, from high-temperature and aggressive chemical environments to hygiene food and life science applications.
• The 80 GHz models are made according to international functional safety standards for use in safety-critical applications.