Endress+Hauser Micropilot FMR30B – 80 GHz Radar Level Sensor

The Micropilot FMR30B is a compact free-space radar level sensor designed for continuous, non-contact measurement of liquids and solids. Based on 80 GHz radar technology, it provides reliable level measurement while keeping the sensor isolated from the process medium.

With a measuring range of up to 30 m, compact construction and guided commissioning, the FMR30B is well suited to basic level applications where reliable measurement and straightforward operation are important.

Accurate Measurement with 80 GHz Radar

The FMR30B operates in the W-band at approximately 80 GHz, providing a focused radar signal for level measurement. It can be used for both liquid and bulk-solid applications, with antenna options adapted to different measuring distances.

Key performance:

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  Measuring principle: Free-space radar
  
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  Frequency: W-band, approximately 80 GHz
  
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  Maximum measurement distance: Up to 30 m
  
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  Accuracy for liquids: ±2 mm
  
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  Accuracy for solids: ±4 mm
  
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  Process temperature: –40 to +80 °C
  
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  Process pressure: –1 to +3 bar
  
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  Output: 2-wire, 4–20 mA HART
  
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  Wireless communication: Bluetooth
  
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  Antenna: 40 mm and 80 mm
  
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  Main wetted materials: PVDF, PBT/PC
  
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  Process connections: Threaded and flange options
  

Non-Contact Measurement for Liquids and Solids

Radar measurement does not require direct contact with the process medium. This makes the FMR30B suitable for applications where a non-contact measuring principle is preferred, including storage tanks, open basins, channels, silos and stockpiles.

The instrument is designed for straightforward applications across water and wastewater, utilities, mining, minerals and metals, and food and beverage industries.

Simple Commissioning and Local Operation

The FMR30B is designed to make installation and commissioning straightforward. Guided setup wizards help users configure the device, while optional Bluetooth connectivity enables remote commissioning and maintenance through the SmartBlue App.

A color touch display is also available for convenient on-site operation, allowing measurement values and device information to be viewed directly at the installation point.

Heartbeat Technology for Verification

The FMR30B features Heartbeat Technology, including on-demand Heartbeat Verification and device diagnostics. This provides an additional tool for checking device performance and supporting maintenance activities without unnecessarily interrupting the measurement process.

Compact Design for Flexible Installation

The compact housing makes the FMR30B suitable for installations where available space is limited. Different antenna and mounting configurations provide flexibility for tanks, basins, channels and bulk-solid applications.

Typical applications include:

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  Open basins
  
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  River monitoring
  
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  Sewer management
  
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  Pump and lift stations
  
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  Open-channel flow measurement
  
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  Stormwater basins
  
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  IBC and storage tanks
  
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  Silos
  
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  Stockpiles
  
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  Pneumatic conveying
  

Broad Application and Approval Options

Depending on the selected configuration, the FMR30B is available with a range of international approvals, including ATEX, IECEx-related regional certifications, EAC Ex, INMETRO Ex, NEPSI Ex and UK Ex options. It can also be configured with approvals such as WHG overfill protection, food-contact approvals and drinking-water approval for suitable applications.

Frequently Asked Questions

What is the Micropilot FMR30B used for?

The FMR30B is designed for continuous, non-contact level measurement of liquids and solids in applications such as tanks, basins, channels, silos and stockpiles.

What is the maximum measuring distance of the FMR30B?

The maximum measuring distance is 30 m when using the 80 mm antenna. The 40 mm antenna provides a maximum range of 20 m.

What is the accuracy of the FMR30B?

The specified accuracy is ±2 mm for liquids and ±4 mm for solids.

Does the FMR30B support Bluetooth?

Yes. Bluetooth wireless technology can be used for commissioning, operation and maintenance through the SmartBlue App.

Does the FMR30B have a local display?

Yes. A color touch display is available as an option for on-site operation and visualization.

What output does the FMR30B use?

The FMR30B uses a 2-wire 4–20 mA HART interface and can also support Bluetooth wireless communication.