Radar measurement
Time-of-Flight
Micropilot FMR51

The standard sensor for highest demands in liquid level measurement

FMR51

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Micropilot FMR51 stainless steel housing

Specs at a glance

Accuracy

+/- 2 mm (0.08 in)
Process temperature

XT: -196...+280 °C
(-321...+536 °F)
HT: -196...+450 °C
(-321...+842 °F)
Process pressure / max. overpressure limit

Vacuum...160 bar
(Vacuum...2320 psi)
Max. measurement distance

Standard: 40 m (131 ft)
With "Advanced dynamics": 70 m (230 ft)
Main wetted parts

316L, Alloy C, PTFE, ceramic

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Field of application

Micropilot FMR51 for level measurement even under extreme process conditions like high temperature and high pressure in the oil & gas and chemical industry. The FMR51 free space radar offers maximum reliability due to an innovative and patented sensor-design. Micropilot is used for continuous, non-contact level measurement of liquids, pastes and slurries. The measurement is not affected by changing media, temperature changes, gas blankets or vapors. Remote access via SmartBlue app is available.

Horn antenna for level measurement even under extreme conditions.

Process connections: Thread, Tri-Clamp or flange
Temperature: -196 to +450°C (-321 to + 842°F)
Pressure: -1 to +160bar (-14.5 to +2,320psi)
Maximum measuring range: 40m (131ft), 70m (230ft) for enhanced dynamics
Accuracy: ±2mm
K-band: 26GHz
International explosion protection certificates, overfill prevention WHG, SIL, marine approvals, 5-point linearity protocol
Remote access with SmartBlue App via Bluetooth® is available

Benefits

Hardware and software developed according to IEC 61508 up to SIL3 (in homogeneous redundancy)
HistoROM data management concept for fast and easy commissioning, maintenance and diagnostics
Highest reliability even in the presence of obstructions in the vessel due to new Multi-Echo Tracking evaluation
Heartbeat Technology for a cost-effective and safe plant operation during the entire life cycle
Seamless integration into control or asset management systems and intuitive, menu-guided operation concept (on-site or via the control system)
World's easiest proof test concept for SIL and WHG saves time and cost
Highest safety due to double ceramic coupling and gas-tight feedthrough

Videos

Time-of-Flight measuring principle
Commissioning movie for Micropilot FMR5x free space radar and Levelflex FMP5x guided radar
Unique HistoROM data management concept for safe level measurement
Continuous adapting algorithms offering safe level measurement due to Multi-Echo Tracking
Micropilot with Advanced Dynamics offering more reliable measuring signals even in the case of turbulences
Micropilot FMR5x with Advanced Diagnostic functions offers foam detection

Extended selection

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

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Predecessor

Micropilot M FMR240

Success stories

Safe and easy access to process data via Bluetooth

Kemira, a global chemicals company, needs accurate monitoring of level and temperature for polymer manufacturing. They use instrumentation with Bluetooth for safe and easy access to process data.
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Optimized logistics concept for tank systems

We implemented a highly effective logistics concept at chemicals distributors Brenntag Schweizerhall AG's Basel site.
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Improved accuracy in butanol level measurement

Global crop protection and seed technology company Nufarm reduces measurement uncertainty to less than 1% with new-generation 80 GHz radar level sensors
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A partnership to improve operational efficiency

Portland Bunkers UK Ltd operates a state-of-the-art fuel storage terminal on the south coast. Due to the risk of pollution from high volumes of oil, advanced monitoring is required at all times.
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Time saved, safety increased

Employees of Returkraft regularly have to fulfill and document all requirements of the SIL measuring points in the plant.
Read the full story