Endress+Hauser
Tank Gauging Level Sensor Micropilot NMR81
- SKU:
- Tank Gauging Level Sensor Micropilot NMR81 series
- Weight:
- 0.00 Grams
Description
Application
The Micropilot NMR81 is designed for precise custody transfer and inventory management, featuring NMi and PTB approvals and complying with OIML R85 and API 3.1B standards. It is ideal for free space measurement applications up to 70 meters in height. The innovative 80 GHz drip-off lens antenna generates a highly focused 3° beam angle, effectively avoiding any obstacles near the tank wall.
- Free Space Measurement: 80 GHz drip-off lens antenna provides enhanced beam focusing for measuring distances up to 70 meters, even with nozzles positioned close to the tank wall.
- Process Connections: Flanged connections
- Temperature Range: -40 to +170°C (-40 to +338°F)
- Pressure Range: From vacuum to +16 bar (vacuum to +232 psi)
- Maximum Measuring Range: 70 meters (230 feet)
- Measurement Accuracy: ±0.5 mm (±0.02 inches)
- Transmitting Frequency: 80 GHz
- Certifications: Global explosion protection, custody transfer, overfill prevention (WHG), SIL compliance
Benefits
- High Safety Standards: Both hardware and software are developed in accordance with IEC 61508 standards up to SIL3 (in homogeneous redundancy), ensuring a high level of safety.
- Exceptional Accuracy: Provides reliable measurements with an accuracy of up to ±0.5 mm (±0.02 inches).
- Compliance with Global Standards: Developed to meet international metrology standards such as OIML R85 and API MPMS, with local certifications like NMi and PTB for custody transfer applications.
- Easy Integration and Operation: Streamlined installation and seamless operation with major DCS systems through open protocol support.
- Advanced 80 GHz Technology: Narrow beam angle for precise targeting, minimizing interference from tank walls and nearby obstructions.
SPECIFICATIONS
Pressure Specifications
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 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: 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, 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 |
Documents
You may want to read this product's catalog. If so, please click to view the Endress+Hauser Tank Gauging Level Sensor Micropilot NMR81 Series datasheet.