Radar Measurement Micropilot NMR84

Brand: Endress+Hauser
Radar measurement Micropilot NMR84
Radar measurement Micropilot NMR84
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Radar Measurement Micropilot NMR84

Brand: Endress+Hauser
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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.

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
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
  • Unique drip-off antenna design eliminates measurement error due to condensation build-up

Specifications

Brand

Measuring Principle

  • Level radar

Characteristic / Application

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

Specialities

  • Custody transfer level measurement

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…150°C (-40°F...302°F)

Process Pressure / Max. Overpressure Limit

  • Vacuum ... 25 bar abs

Main Wetted Parts

  • 316L, PTFE

Process Connection

  • Flange: DN100/4"…DN300/12"
  • UNI-flange: DN150/6"…DN300/12"

Max. Measurement Distance

  • 40 m (131 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)
  • 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

Application Limits

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