Endress+Hauser Micropilot FMR43 – Hygienic Radar Level Sensor for Demanding Applications

The Micropilot FMR43 is a compact free-space radar level sensor specially developed for hygienic applications in the Food & Beverage and Life Sciences industries. Based on advanced radar technology, it provides continuous, non-contact level measurement with excellent accuracy and reliability, even under rapidly changing or turbulent process conditions.

Designed as part of the Endress+Hauser Compact Line, the FMR43 combines a small installation footprint with high measurement performance, making it especially suitable for compact process tanks, vessels with internal structures and applications requiring strict hygiene standards.

High-Precision Radar Measurement for Hygienic Processes

The FMR43 uses proven 80 GHz radar technology and offers an additional 180 GHz frequency option for very small process connections and narrow beam angle requirements.

With an accuracy of ±1 mm and a maximum measuring distance of 15 m, the sensor provides reliable level measurement for demanding liquid applications.

Key performance:

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  Measuring principle: Free-space radar level measurement
  
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  Radar frequency: 80 GHz / optional 180 GHz
  
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  Accuracy: ±1 mm
  
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  Maximum measuring distance: 15 m
  
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  Process temperature: –40 to +150 °C
  
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  Process pressure: –1 to +20 bar
  
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  Communication: 2-wire HART, IO-Link, Bluetooth
  
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  Wetted materials: PEEK, PTFE, 316L (threaded connections)
  
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  Hygienic approvals: 3-A, EHEDG, ASME BPE, USP Class VI
  
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  Diagnostics: Heartbeat Technology
  

Hygienic Design for Food & Beverage and Life Sciences

The FMR43 is engineered for hygienic process environments where cleanliness, material traceability and product safety are critical.

The compact radar sensor supports hygienic process connections including Clamp/Tri-Clamp, NEUMO BioControl and other hygienic connection options, with materials and approvals designed to meet demanding sanitary requirements.

Typical applications include:

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  Food and beverage processing
  
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  Pharmaceutical and life science processes
  
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  Mixing tanks
  
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  Filling applications
  
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  Storage tanks for low-conductivity liquids
  
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  Small vessels with internal components
  
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  Tanks with changing media density
  

Reliable Measurement in Challenging Process Conditions

Unlike contact measurement technologies, radar measurement does not require direct contact with the medium. This helps reduce the influence of product buildup, changing liquid properties and process disturbances.

The FMR43 is especially suitable for:

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  Viscous liquids
  
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  Low-conductivity media
  
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  Rapidly changing filling processes
  
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  Turbulent process conditions
  
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  Applications requiring frequent cleaning cycles
  

Compact Design for Small Process Tanks

Many hygienic applications involve limited installation space or vessels with internal components such as agitators, mixers or heating elements.

The optional 180 GHz radar frequency provides a narrower beam angle, allowing installation in smaller tanks and applications where conventional radar sensors may have limitations.

Digital Communication and Easy Commissioning

The FMR43 supports modern digital communication methods, including:

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  IO-Link for digital plant integration
  
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  2-wire HART for conventional process systems
  
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  Bluetooth wireless technology for commissioning and maintenance through the SmartBlue App
  

Guided commissioning functions help simplify setup and reduce installation time, allowing operators to configure the device efficiently.

Heartbeat Technology for Verification and Diagnostics

The integrated Heartbeat Technology provides advanced diagnostics and on-demand verification functions.

This allows users to check radar performance and document device status without interrupting the measurement process, supporting predictive maintenance strategies and improving process availability.

Frequently Asked Questions

What is the Micropilot FMR43 used for?

The FMR43 is designed for continuous non-contact level measurement in hygienic applications, especially in Food & Beverage and Life Sciences processes.

What is the maximum measuring distance of the FMR43?

The maximum measuring distance is 15 m.

What accuracy can the FMR43 achieve?

The FMR43 provides high measurement accuracy up to ±1 mm.

What radar frequencies does the FMR43 support?

The sensor supports 80 GHz radar technology and an optional 180 GHz version for very small tanks and narrow beam angle applications.

Can the FMR43 be used in hygienic applications?

Yes. The FMR43 is specifically designed for hygienic processes and supports approvals including 3-A, EHEDG and ASME BPE depending on configuration.

What communication options are available?

The FMR43 supports HART, IO-Link and Bluetooth wireless communication.