E+H Micropilot FMR10B Free-space radar transmitter

Introduction to Advanced Radar Measurement

The Endress+Hauser Micropilot FMR10B Free-space radar is a highly versatile and reliable 80 GHz radar level sensor engineered to meet the demanding requirements of modern industrial processes. As an advanced non-contact level measurement solution, the FMR10B utilizes Frequency Modulated Continuous Wave (FMCW) technology to deliver precise and continuous data for both liquid level meters and solid level transmitters. Whether you are managing inventory in large storage silos or tracking flow rates in open channels, this industrial radar sensor provides exceptional accuracy and operational safety.

Cutting-Edge 80 GHz Technology and Performance

Operating at approximately 80 GHz, the Micropilot FMR10B generates a focused beam angle that minimizes interference from internal vessel fittings, obstructions, or tank walls. This high-frequency transmission power (peak power under 1.5 mW) ensures that up to eight devices can operate simultaneously within the same tank without mutual interference. The device delivers reference accuracy up to ±5 mm (0.2 in) for liquids over a maximum measuring range of up to 10 m (33 ft). Its advanced signal processing guarantees stable and reliable continuous level monitoring even when dealing with low dielectric constants (εr ≥ 1.8 for liquids, εr ≥ 1.6 for bulk solids).

Smart Operations and Wireless Connectivity via Bluetooth

Commissioning and maintaining industrial instrumentation has never been easier. The FMR10B features built-in Bluetooth wireless technology, allowing engineers and technicians to perform configuration, operation, and diagnostics using the free SmartBlue app on iOS or Android devices, as well as Field Xpert tablets. This secure, point-to-point wireless remote access is encrypted and tested by the Fraunhofer Institute, making it ideal for installation in hard-to-reach areas while significantly saving time and reducing operational costs. Additionally, a physical LED indicator provides fast status detection at a glance (green for normal operation, red for active alarms).

Rugged Mechanical Design and Environmental Protection

Built for harsh industrial environments, the Endress+Hauser FMR10B features a durable PVDF antenna end process connection and a PBT/PC sensor housing designed to withstand process temperatures ranging from -40 to +60 °C (-40 to +140 °F) and process pressures from -1 to 3 bar (-14.5 to 43.5 psi). It offers outstanding environmental protection with IP66/IP68 and NEMA Type 4X/6P ratings, ensuring watertight integrity even during temporary submersions (tested at 1.83 m or 6.00 ft under water for 24 hours).

Comprehensive Output and Integration Capabilities

The 4-20 mA current output supports multiple operating modes, including NAMUR NE 43 compliance (factory setting of 3.8 to 20.5 mA), ensuring seamless integration into existing Programmable Logic Controllers (PLCs) and control systems. Pre-programmed linearization curves allow direct conversion of measured values into volume units (for pyramid, conical, angled, horizontal cylindrical, or spherical vessels) or flow rates across standard flumes and weirs (such as Khafagi-Venturi, Parshall, and V-notch weirs).

Application

• Water and Wastewater Management: Level tracking in water basins, buffer tanks, sewer channels, and open-channel flow measurements.

• Chemical and Petrochemical Industries: Non-contact measurement of acids, organic solvents, alcohols, hydrocarbons, and chemical storage vessels.

• Food, Beverage, and Life Sciences: Reliable monitoring in utility tanks, storage vessels, and auxiliary processing units.

• Mining, Minerals, and Bulk Solids: Continuous level and inventory management for powders, grains, pellets, and aggregates in silos and bunkers.

Technical Specifications

• Measuring Principle: Free-space radar using Frequency Modulated Continuous Wave (FMCW) technology.

• Operating Frequency: Approx. 80 GHz.

• Maximum Measuring Range: Up to 10 m (33 ft).

• Process Temperature Range: -40 to +60 °C (-40 to +140 °F).

• Process Pressure Range: -1 to 3 bar (-14 to 43 psi).

• Accuracy: Up to ±5 mm (0.2 in) for liquids; up to ±10 mm (0.4 in) for bulk solids over standard measuring distances.

• Output Signal: 4 to 20 mA current output (NAMUR NE 43 compliant).

• Power Supply: 12 to 30 V DC on a DC power unit (PELV, SELV, or Class 2).

• Degree of Protection: IP66/68 and NEMA Type 4X/6P.

• Remote Operation: Bluetooth wireless technology via SmartBlue app or DeviceCare.

• Wetted Materials: PVDF (antenna end process connection), EPDM (seals).

FAQ

• Q1: How do I configure and commission the FMR10B radar sensor?

  • A: Commissioning is fast and straightforward using the free SmartBlue app on your smartphone or tablet via Bluetooth. An interactive startup wizard guides you step-by-step through tank parameters, empty/full calibration, and application settings.

• Q2: Can the FMR10B be used outdoors exposed to direct sunlight and rain?

  • A: Yes, the device features robust IP66/68 weather protection. However, for outdoor installations in strong sunlight or heavy rain, using an optional weather protective cover is recommended to prevent excessive solar heating and ensure optimal longevity.

• Q3: What is the required power supply for this radar level transmitter?

  • A: The device operates on a DC power supply ranging from 12 to 30 V DC, requiring a safety-approved power unit (such as PELV, SELV, or Class 2).

• Q4: Is it suitable for measuring media with low dielectric constants?

  • A: Yes, the sensor can measure liquids with a relative permittivity (εr) down to 1.8 and bulk solids down to 1.6. For very low dielectric properties, specific installation guidelines or offset configurations should be followed as outlined in the technical manual.

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