Radar measurement
Micropilot NMR81

Micropilot NMR81 ©Endress+Hauser
Micropilot NMR81 ©Endress+Hauser

Drip-off lens antenna with 80 GHz transmitting frequency for custody transfer applications

Micropilot NMR81 is used for custody transfer and inventory control applications with NMi- and PTB-approvals and meets the requirements according to OIML R85 and API 3.1B. NMR81 is particularly suited for free space applications up to 70m. The drip-off lens antenna with 80 GHz transmitting frequency produces a sharply focused beam angle of 3° and avoids obstacles even close to tank wall.

  • Előnyök

    • 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...

  • Alkalmazási terület

    80GHz drip-off lens antenna suited for free space applications up to 70m offers high beam focusing for applications with nozzle situated close to tank wall.

    • Process connections: Flanges

    • Temperature: -40 to +170°C (-40 to +338°F)

    • Pressure: Vacuum to +...

Tulajdonságok és jellemzők

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Details

  • Mérési elv

    Level radar

  • Characteristic / Application

    Lens antenna, 80GHz: High precision measurement for for storage tanks up to 30 m (98ft)

  • Specialities

    Custody transfer level measurement

    Measurement close to tank wall

  • Supply / Communication

    85-264VAC

  • Accuracy

    up to 0.5 mm

  • Ambient temperature

    Standard:

    -40°C…60°C

    (-40°F...140°F)

    For calibration to regulatory
    standards:

    -25°C…55°C

    (-13°F...131°F)

  • Process temperature

    -40°C...200°C

    (-40°F...392°F)

  • Process pressure absolute / max. overpressure limit

    Vacuum.....16 bar abs

  • Main wetted parts

    316L, PTFE

  • Process connection

    Flange:

    DN50/2"…DN300/12"

    Flange w/ Alignment tool:

    DN100/4"…DN300/12"


    UNI-Flange:

    DN150/6"…DN300/12"

    UNI-Flange w/ Alignment tool:

    DN150/6"…DN300/12"

  • Max. measurement distance

    70 m (230 ft)

    For calibration to regulatory standards:

    30 m (98 ft)

  • Communication

    Outputs:

    Fieldbus: Modbus RS485, V1, HART

    Analog 4-20mA output (Exi/ Exd)

    Relay output (Exd)


    Inputs:

    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

    AD2000

  • Metrological approvals and certificates

    OIML, NMi, PTB

  • Options

    Redundant fieldbus

    Alu-coated or 316L housing

    Weather protection cover

    Adjustable mounting seals

  • Application limits

    Maximum measuring range is

    dependent on the tank form and/
    or application

    Strong condensate or build-up
    formation

Dokumentumok / Kézikönyvek / Szoftver

Tartozékok / alkatrészek

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