Micropilot NMR81
Brand: Endress+Hauser
Micropilot NMR81
Brand: Endress+Hauser
Xpert Specs at a Glance
(-40°F...392°F)
For calibration to regulatory standards:
30 m (98 ft)
Field of application
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.
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
Industry
- Chemical
- Food & Beverage
- Oil & Gas
Product Family
- Micropilot
Continuous / Liquids
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
- 52-74VAC
- 19-64VDC
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:
- DN50/2"…DN300/12"
- Flange w/ Alignment tool:
- DN100/4"…DN300/12"
- UNI-Flange:
- DN150/6"…DN300/12"
- UNI-Flange w/ Alignment tool:
Max. measurement distance
- 70 m (230 ft)
- For calibration to regulatory standards:
- 30 m (98 ft)
Communication
- Outputs:
- Fieldbus: Modbus RS485, V1, WM550
- HART, BPM and TRL/2 (via GE option)
- 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, 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
