Last Updates: 16/08/2020

E&H Micropilot NMR84 Radar measurement

Part Number: NMR84 Categories: ,
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  • Micropilot NMR84 is used for custody transfer and inventory control applications with NMi- and PTB-approvals. It meets the relevant requirements according to OIML R85 and API 3.1B. The NMR84 free space radar with drip-off planar antenna is specifically suited for stilling well applications. The superior drip-off antenna design with proven track record eliminates problems caused by condensation.

    • Hardware and software developed according to IEC 61508 up to SIL3 (in homogeneous redundancy) for high level of safety
    • Maximum reliability through accuracy up to ±0.5mm (±0.02″)
    • Developed according to international metrology recommendations such as OIML R85 and API MPMS
    • Local and country-specific certifications like NMi or PTB for custody transfer applications
    • Simplified installation and trouble-free operations due to easy connection to major DCS systems via open protocols
    • Unique drip-off antenna design eliminates measurement error due to condensation build-up

    With planar antenna particularly suited for stilling well applications.

    • Process connections: Flanges
    • Temperature: -40 to +150°C (-40 to +302°F)
    • Pressure: Vacuum to +25bar (Vacuum to +362psi)
    • Maximum measuring range: 40m (131ft)
    • Accuracy: ±0.5mm (±0.02″)
    • Transmitting frequency: 6GHz
    • International explosion protection and custody transfer certificates, overfill prevention WHG, SIL
    • Measuring principle

      Level radar

    • Characteristic / Application

      Planar antenna, 6GHz: High precision measurement for for storage tanks up to 30 m (98ft)

    • Specialities

      Custody transfer level measurement

    • Supply / Communication


    • Accuracy

      up to 0.5 mm

    • Ambient temperature




      For calibration to regulatory




    • Process temperature



    • Process pressure absolute / max. overpressure limit

      Vacuum … 25 bar abs

    • Main wetted parts

      316L, PTFE

    • Process connection





    • Max. measurement distance

      40 m (131 ft)

      For calibration to regulatory standards:

      30 m (98 ft)

    • Communication


      Fieldbus: Modbus RS485, V1, HART

      Analog 4-20mA output (Exi/ Exd)

      Relay output (Exd)


      Analog 4-20mA input (Exi/ Exd)

      2-, 3-, 4-wire RTD input

      Discrete input (Exd, passive/ active)

    • Certificates / Approvals

      ATEX, FM, IEC Ex, EAC

    • Design approvals

      EN 10204-3.1

      NACE MR0175, MR0103


    • Metrological approvals and certificates

      OIML, NMi, PTB

    • Options

      Redundant fieldbus

      Alu-coated or 316L housing

      Weather protection cover

    • Application limits

      Maximum measuring range is 
      dependent on the tank form and/ 
      or application 
      Strong condensate or build-up 

    Datasheet: Micropilot NMR84 Technical Information

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