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Endress+Hauser Radar measurement Micropilot NMR81

Endress+Hauser Radar measurement Micropilot NMR81 產品詳情

Drip-off lens antenna with 79 GHz transmitting frequency for custody transfer applications

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 79 GHz transmitting frequency produces a sharply focused beam angle of 3° and avoids obstacles even close to tank wall.

Benefits

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
79GHz technology for narrow beam angle for sharper focus, without interference from tank wall and obstructions

Field of application

79 GHz 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 +200°C (-40 to +392°F)
Pressure: Vacuum to +16bar (Vacuum to +232psi)
Maximum measuring range: 70m (230ft)
Accuracy: ±0.5mm (±0.02")
Transmitting frequency: 79GHz
International explosion protection and custody transfer certificates, overfill prevention WHG, SIL

Measuring Principle	Level radar
Characteristic / Application	Lens antenna, 79GHz: 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	IEC Ex, ATEX, FM,
Safety approvals	SIL
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

關鍵詞：NMR

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