Endress+Hauser Micropilot NMR81 Radar measurement

• 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

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

• Measuring principle

  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

Datasheet: Micropilot NMR81 Technical Information