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
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.
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
Specification Category | Micropilot NMR81 | Micropilot NMR84 |
Product Model | Micropilot NMR81 | Micropilot NMR84 |
Measurement Principle | 80 GHz FMCW (Frequency-Modulated Continuous Wave) radar, non-contact | 6 GHz FMCW radar, non-contact |
Antenna Type | Drop antenna (lens antenna), 3° narrow beam angle | Planar drip-off antenna, specifically designed for stilling wells |
Main Application | Free-space liquid level measurement, custody transfer, inventory control | Liquid level measurement in stilling wells / inner pipes, custody transfer |
Accuracy | ±0.5 mm (for ranges ≤30 m) | ±0.5 mm |
Max Measuring Range | 70 m (230 ft) | 40 m (131 ft) |
Process Temperature | -40 … +200 °C (-40 … 392 °F) | -40 … +150 °C (-40 … 302 °F) |
Process Pressure | Vacuum … +16 bar abs (Vacuum … +232 psi) | Vacuum … +25 bar abs (Vacuum … +362 psi) |
Dielectric Constant (εr) | ≥ 1.9 | ≥ 1.5 |
Process Connection | Flanged: DN50 (2"), DN80 (3"), DN100 (4") | Flanged: DN100 (4"), DN150 (6"), DN200 (8"), DN250 (10"), DN300 (12") |
Wetted Parts | 316L stainless steel, PTFE | 316L stainless steel, PTFE |
Process Sealing | FFKM (-20…+200 °C), FKM GLT (-40…+200 °C) | HNBR (-30…+150 °C) |
Power Supply | 10 … 30 V DC (2-wire loop-powered) | 10 … 30 V DC (2-wire loop-powered) |
Output Signals | • 4…20 mA HART (analog + digital) • Modbus RS485• Switch output | • 4…20 mA HART (analog + digital) • Modbus RS485• Switch output |
Communication | HART 5/7, Modbus RS485 | HART 5/7, Modbus RS485 |
Display | Local LCD with backlight | Local LCD with backlight |
Ingress Protection | IP66 / IP68 | IP66 / IP68 |
Ambient Temperature | -25 … +55 °C (-13 … 131 °F) | -25 … +55 °C (-13 … 131 °F) |
Safety Certification | SIL 2 (single), SIL 3 (homogeneous redundancy) | SIL 2 (single), SIL 3 (homogeneous redundancy) |
Custody Transfer Approval | NMi, PTB, OIML R85, API 3.1B | NMi, PTB, OIML R85, API 3.1B |
Housing Material | Stainless steel (1.4404 / 316L) | Stainless steel (1.4404 / 316L) |
Vibration Resistance | 20 … 2000 Hz, 4.5 g (DIN EN 60068-2-64) | 20 … 2000 Hz, 4.5 g |
EMC | IEC 61326 Class B, NAMUR NE21 | IEC 61326 Class B, NAMUR NE21 |
Packaging: Original box
Esito (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
We can offer rosemount, Endress+Hauser, yokogawa, Siemens, ABB,Fisher,Koso, Samson, Abzil, NELES,UE etc, Brands.
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