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Micropilot NMR81

Radar Level Gauge · Cargo Level & Temperature Gauging

Class-certified type (DNV register) · technical data sheet not yet verified

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.

Specifications

Technical data.reference — unverified

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Minimum terminal voltage10.4 V 1)
Maximum terminal voltage29 V 1)
Relais-Schaltleistung für ohmsche Last30 VDC @ 2 A
Max. Ansprechspannung250 VAC
Min. Ansprechspannung25 VAC
Empty0 to 10 000 000 mm
Tank reference height0 to 10 000 000 mm
Vapor density0.0 to 500.0 kg/m³
Factory setting1.2 kg/m³
Pressure-25 to 25 bar
P1 position-10 000 to 100 000 mm
P1 offset-25 to 25 bar
P3 (top) manual pressure-2.5 to 2.5 bar
P3 position0 to 100 000 mm
P3 offset-2.5 to 2.5 bar
Maximum current consumption of connected HART devices24 mA
Output voltage of Ex-d module17.0 V@4 mA to 10.5 V@22 mA
Output voltage of Ex-ia module18.5 V@4 mA to 12.5 V@22 mA
Manual vapor temperature25 °C
P1 (bottom) manual pressure-25 to 25 bar
Ambient pressure0 to 2.5 bar
Type of signalAnalog (4...20mA), HART
Maximum current consumption of the connected HART devices24 mA
Output voltage of the Ex-d module17.0 V@4 mA to 10.5 V@22 mA
Output voltage of the Ex-ia module18.5 V@4 mA to 12.5 V@22 mA
Upper density0 to 3 000 kg/m³
Calibration temperature-50 to 250 °C
Linear expansion coefficient0 to 100 ppm
Wire expansion coefficient0 to 100 ppm
Minimum pressure0 to 100 bar
Safety distance0 to 10 000 mm
Hysteresis0 to 2 000 mm
User entry0 to 5 000 mm
Adresse0 … 255
Leerabgleich0 … 10 000 000 mm
Tank Referenzhöhe0 … 10 000,00 mm
Gas Temperatur manuell25 °C
Werkseinstellung1,2 kg/m³
Druck-25 ... 25 bar
P1 Position-10 000 … 100 000 mm
P1 Offset-25 … 25 bar
P3 (oben) manueller Druck-2,5 … 2,5 bar
Start Füllstand500 mm
Sicherheitsdistanz0 ... 10 000 mm
Hysterese0 ... 2 000 mm
Wasserdichte1 000 kg/m³
SignalartAnalog (4...20 mA), HART
Maximale Stromaufnahme der angeschlossenen HART-Geräte24 mA
Ausgangsspannung des Ex-d-Moduls17,0 V@4 mA bis 10,5 V@22 mA
Ausgangsspannung des Ex-ia-Moduls18,5 V@4 mA bis 12,5 V@22 mA
Kegeldurchmesser W0,61 m (2 ft)
Minimale Distanz (A)0,31 m (1 ft)
Antennengröße50 mm (2 in)
Messdistanz5 m (16 ft)
Kegeldurchmesser0,61 m (2 ft)
Zuordnung Füllstand0,0 mm
Leitungsimpedanz0 … 15
Füllstand setzen0 … 10 000,00 mm
Wasserfüllstand manuell-2 000 … 5 000 mm
Werkseinstellung Flüssigkeitstemperatur manuell25 °C
Eingabe–25 … 25 bar
Fühler Position-5 000 … 30 000 mm
Umgebungsdruck0 … 2,5 bar
Werkseinstellung Luft Dichte1,2 kg/m³
Dichte0 … 3 000 kg/m³
Temperatura-40 a +200 °C (–40 a +392 °F)
PresiónVacío hasta +16 bar (vacío hasta 232 psi)
Rango de mediciónhasta 70 m (230 ft)
Pressionevuoto fino a +16 bar (vuoto fino a +232 psi)
Campo di misurafino a 40 m (131 ft)
Stromaufnahme bei maximaler Spannung≤ 1 mA (DC)
Part numberNMR81
Manufacturer documentation

Images from manufacturer documentation.

Photos, drawings and page previews from this model’s datasheet or catalog.

The Micropilot NMR81 is a non-contact level transmitter for measuring the level of liquids in tanks and vessels.Source: Endress+Hauser Micropilot NMR81 datasheet, p. 14

Applications

  • Hydrostatic Tank Deformation

Features

  • HyTD correction value
  • Starting level

Options

  • Antenna 50mm/2"
  • Antenna 80mm/3"
  • Antenna 100mm/4"
  • Ordering feature 100 'Antenna', option AB
  • Ordering feature 100 'Antenna', option AC
  • Ordering feature 100 'Antenna', option AD
Source: Endress+Hauser Micropilot NMR81 datasheet, p. 16
Endress+Hauser Micropilot NMR81 – Drawing (3af4fa3a512f_S12-224 S. 16)
Drawing · 3af4fa3a512f_S12-224 · S. 16
Endress+Hauser Micropilot NMR81 – Drawing (3af4fa3a512f_S12-224 S. 18)
Drawing · 3af4fa3a512f_S12-224 · S. 18
Endress+Hauser Micropilot NMR81 – Drawing (3af4fa3a512f_S12-224 S. 20)
Drawing · 3af4fa3a512f_S12-224 · S. 20
Endress+Hauser Micropilot NMR81 – Page preview (3af4fa3a512f_S12-224 S. 12)
Page preview · 3af4fa3a512f_S12-224 · S. 12
Endress+Hauser Micropilot NMR81 – Page preview (3af4fa3a512f_S12-224 S. 13)
Page preview · 3af4fa3a512f_S12-224 · S. 13
Endress+Hauser Micropilot NMR81 – Page preview (3af4fa3a512f_S12-224 S. 14)
Page preview · 3af4fa3a512f_S12-224 · S. 14
Endress+Hauser Micropilot NMR81 – Page preview (3af4fa3a512f_S12-224 S. 15)
Page preview · 3af4fa3a512f_S12-224 · S. 15
Source: Endress+Hauser Micropilot NMR81 datasheet, p. 196
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