E+H Micropilot FMR52 Premium PTFE Horn Radar Level Transmitter

Reliable Level Measurement for Corrosive & Aggressive Liquids

In severe chemical processing, petrochemical plants, and heavy industrial facilities, measuring the level of highly corrosive acids, solvents, and aggressive chemicals requires specialized sensor materials that resist chemical degradation. The Endress+Hauser Micropilot FMR52 Non-Contact Radar Level Transmitter represents top-tier radar engineering designed specifically for aggressive process liquids. Utilizing non-contact pulse radar technology, the FMR52 measures liquid levels continuously without mechanical contact, completely eliminating corrosion, crystallization buildup, and sensor wear.

Fully Clad PTFE Horn Antenna for Extreme Chemical Resistance

A primary engineering highlight of the Micropilot FMR52 is its flush-mounted, fully clad PTFE horn antenna assembly. All wetted components exposed to the internal tank atmosphere are manufactured from chemically inert, high-grade PTFE or PFA materials, isolating metallic transmitter components from aggressive chemical vapors and corrosive liquids.

The flush-mounted antenna design prevents condensation buildup and media adhesion, ensuring stable signal transmission even in tanks with heavy agitation, foaming, or rapid surface movement. It is fully rated for process temperatures ranging from -40 °C to +200 °C (-40 °F to +392 °F) and process pressures from vacuum up to 16 bar (232 psi).

Multi-Echo Tracking & Safety Functional Integrity

Measuring liquid levels in process reactors with internal heat exchangers, agitators, or narrow nozzles requires intelligent signal evaluation algorithms. The FMR52 incorporates Endress+Hauser Multi-Echo Tracking software algorithms, which automatically filter out false reflections caused by internal tank obstructions and agitator blades, securing uninterrupted level tracking across the full measuring range.

Designed in accordance with IEC 61508 standards, the FMR52 is suitable for high-consequence safety instrumented systems (SIL2 / SIL3 in homogeneous redundancy). Integrated onboard diagnostic functions continuously monitor electronic circuit health and signal quality, providing immediate error alerts according to NAMUR NE107 guidelines.

Flexible digital communication interfaces include 2-wire 4 to 20 mA HART, PROFIBUS PA, and Foundation Fieldbus protocols, allowing seamless automation integration into supervisory PLC, SCADA, or DCS architectures.

Applications

• Chemical Storage & Distribution: Continuous non-contact level measurement in bulk tanks containing hydrochloric acid, sulfuric acid, caustic soda, and aggressive solvents.

• Chemical Process Reactors: Precise level tracking in agitated reaction vessels, neutralization tanks, and mixing basins.

• Petrochemical Utilities: Reliable liquid level monitoring in solvent recovery vessels, acid dosing skids, and wastewater buffer tanks.

• Hygienic & Food Processing: Sanitary level measurement in vessels requiring FDA-compliant PTFE wetted parts and CIP/SIP cleanability.

• Environmental & Mining: Level monitoring in aggressive leach tanks, acid runoff basins, and electro-refining liquid cells.

 Technical Specifications

• Manufacturer / Brand: Endress+Hauser (E+H)

• Measurement Principle: Non-contact continuous radar level measurement.

• Operating Frequency: ~26 GHz (K-band).

• Max. Measuring Range: Up to 40 meters (131 ft).

• Measurement Accuracy: ±2 mm (0.08 in).

• Antenna Type: Flush-mounted, fully clad PTFE horn antenna / Clad flange.

• Wetted Materials: PTFE, PFA, Alloy C22 / 316L (FDA compliant wetted parts).

• Process Temperature Range: -40 °C to +200 °C (-40 °F to +392 °F).

• Process Pressure Range: Vacuum to 16 bar (-14.5 to 232 psi).

• Communication / Outputs: 4 to 20 mA HART (2-wire), PROFIBUS PA, Foundation Fieldbus.

• Functional Safety: SIL2 certified according to IEC 61508 / SIL3 in homogeneous redundancy.

• Hazardous Area Approvals: ATEX, IECEx, CSA, FM, NEPSI, UKCA, TIIS.

FAQ

Q1: Is the Endress+Hauser Micropilot FMR52 supplied as an authentic original unit? A: Yes. We supply 100% genuine, brand-new Endress+Hauser instruments complete with original factory serial numbers, calibration reports, and official documentation.

Q2: What is the main advantage of the FMR52 compared to standard radar level transmitters? A: The FMR52 features a fully clad, flush-mounted PTFE horn antenna assembly. This ensures that all wetted parts exposed to process liquids and vapors are chemically inert, making it ideal for extremely aggressive acids, alkalis, and solvents.

Q3: Can the FMR52 handle tanks with internal agitators or heating coils? A: Yes. The FMR52 utilizes Endress+Hauser Multi-Echo Tracking algorithms to automatically identify and suppress false signal reflections caused by agitator blades, heating coils, or vessel wall structures.

Q4: How can I request distributor quotes and confirm delivery lead times? A: Simply submit your required E+H model ordering code, flange pressure rating, and process liquid media through our inquiry form. Our sales team will provide a prompt, competitive quotation and export delivery timeline.

Product documents

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