Endress+Hauser Micropilot FMR52 26GHz Radar Level Transmitter | Corrosive & Hygienic Liquid Level Measurement

Micropilot FMR52 is a 26GHz radar level transmitter based on radar travel-time measurement, designed for highly corrosive liquids and ultra‑hygienic applications.

It features a full PTFE flush horn antenna for excellent corrosion resistance and cleanability, meeting strict requirements in food, pharmaceutical, and chemical industries.

FMR52 provides continuous, non-contact level measurement unaffected by medium density, temperature, vapor, or gas phase changes.

It supports multi‑echo tracking, HistoROM data management, and Heartbeat Technology, with seamless system integration and SIL2/SIL3 compliance.

• 26GHz K-band radar, non-contact measurement immune to medium, temperature, and vapor
• Full PTFE flush horn antenna for excellent corrosion resistance & cleanability
• Hygienic approvals: ASME BPE, USP Class VI, 3‑A, EHEDG for food & pharma
• Multi-echo tracking ensures accurate measurement even with obstructions
• IEC 61508 compliant, SIL2 (single), SIL3 (redundant)
• HistoROM data management for easy commissioning, service, diagnostics
• Heartbeat Technology for safe and reliable operation
• HART, PROFIBUS PA, FOUNDATION Fieldbus for seamless system integration
• Complete Ex, WHG, marine, and hygienic certifications

Applications

• Level measurement for highly corrosive liquids
• Food, beverage, pharmaceutical with strict hygiene requirements
• Chemical, pharmaceutical, fine chemical industries
• Hygienic tanks, reactors, and blending vessels
• Demanding applications requiring corrosion resistance, Ex, SIL, and hygienic certification

Specifications

Measuring Principle

Radar Level Transmitter

Operating Frequency

K-band (~26 GHz)

Measuring Accuracy

±2 mm (0.08 in)

Maximum Measuring Range

Standard: 40 m

Advanced dynamics: 60 m

Ambient Temperature

-50 … +80 °C

Process Temperature

-40 … +200 °C

Process Pressure

Vacuum … 25 bar

Wetted Parts

PTFE

Process Connection

Flange: DN50–DN150, ASME 2"–6", JIS 10K

Hygienic: Tri-Clamp ISO2852, DIN11851

Communication

4…20 mA HART

PROFIBUS PA

FOUNDATION Fieldbus

Certifications

• Ex: ATEX, CSA, IEC Ex, FM, TIIS, NEPSI, KC
• Safety: WHG, SIL2/SIL3
• Hygienic: 3A, EHEDG, ASME BPE, USP Class VI
• Marine: GL, ABS, LR, BV, DNV

Application Limitations

• Maximum measuring range depends on tank design and/or application
• For ammoniacal gas phase → FMR54 in stilling well recommended
• For heavy buildup formation → FMR54 with air purge recommended
• For custody transfer measurement → FMR5xx series recommended