Radar Measurement Micropilot NMR81

Brand: Endress+Hauser
Radar measurement Micropilot NMR81
Radar measurement Micropilot NMR81
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Radar Measurement Micropilot NMR81

Brand: Endress+Hauser

Local Support: Authorized Distributor Serving Alabama, Mississippi, Louisiana, Florida, New York, Connecticut, Massachusetts, Vermont, New Hampshire, Maine, Rhode Island, Puerto Rico, US Virgin Islands and parts of Tennessee and Arkansas.

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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 70 m. 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.

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 +16bar (Vacuum to +232psi)
  • Maximum measuring range: 70m (230ft)
  • Accuracy: ±0.5mm (±0.02")
  • Transmitting frequency: 80GHz
  • International explosion protection and custody transfer certificates, overfill prevention WHG, SIL
Features
  • 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
  • 80GHz technology for narrow beam angle for sharper focus, without interference from tank wall and obstructions

Specifications

Brand

Product Family

  • Micropilot

Measuring Principle

  • Level Radar

Characteristic / Application

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

Specialities

  • Custody transfer level measurement
  • Measurement close to tank wall

Supply / Communication

  • 85-264 VAC
  • 52-74 VAC
  • 19-64 VDC

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 / Max. Overpressure Limit

  • Vacuum.....16 bar abs

Main Wetted Parts

  • 316L, PTFE

Process Connection

  • Flange w/ Alignment tool: DN100/4"…DN300/12"
  • UNI-Flange: DN150/6"…DN300/12"
  • NI-Flange w/ Alignment tool: DN150/6"…DN300/12"
  • Flange: DN50/2"…DN300/12"

Max. Measurement Distance

  • 70 m (230 ft)
  • For calibration to regulatory standards: 30 m (98 ft)

Communication

  • Output - Fieldbus: Modbus RS485, V1, WM550
  • Output: HART, BPM and TRL/2 (via GE option)
  • Analog 4-20mA output (Exi/ Exd)
  • Relay output (Exd)
  • Input: Analog 4-20mA input (Exi/ Exd)
  • 2-, 3-, 4-wire RTD input
  • Discrete input (Exd, passive/active)

Certificates / Approvals

  • ATEX, FM, IEC Ex, EAC, JPN Ex, KC Ex
  • INMETRO, NEPSI, UK Ex

Safety Approvals

  • Overfill protection WHG
  • SIL

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
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