Servo tank gauging instrument
Proservo NMS81

Proservo NMS81 ©Endress+Hauser
Proservo NMS81 ©Endress+Hauser

High precision servo measurement for liquid level, interface and density

The intelligent tank gauge Proservo NMS81 is designed for high accuracy liquid level measurement in custody transfer and inventory control applications with NMi- and PTB-approvals. It meets the relevant requirements according to OIML R85 and API 3.1B. It fulfills the exact demands of tank inventory management and loss control and is optimized in regards of total cost saving and safe operation.

  • Előnyök

    • 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 ±0.4mm (± 0.02")

    • Developed according to international metrology recommendations such as...

  • Alkalmazási terület

    For high accuracy custody transfer measurement in crude oil, gasoline, diesel, petrochemicals and chemicals.

    • Process connections: Flanges

    • Temperature: -200 to +200°C (-328 to +392°F)

    • Pressure: 0 to +25bar (0 to +362psi)

    • Maximum measuring range: 47m (...

Tulajdonságok és jellemzők

Vissza

Details

  • Mérési elv

    Servo / Float Tank Gauging

  • Servo Tank Gauging: High precision measurement for liquid level, interface, spot density, profile density

  • 85-264 VAC

  • Standard:

    -40°C…60°C

    40°F...140°F)


    For calibration to regulatory

    Standards:

    -25°C…55°C

    (-13°F...131°F)

  • -200°C...200°C

    (-328°F...392°F)

  • up to 25 bar (363 psi) abs

  • 316L, AlloyC276, PTFE

  • 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)

  • ATEX, FM, IEC Ex, NEPSI, EAC

  • Redundant fieldbus

    Alu-coated or 316L housing

    Weather protection cover

    Guide wire assembly

    Relief valve

    Gas purging nozzle connection

    Pressure gauge
    Cleaning nozzle connection

  • Custody transfer level measurement

    Interface measurement

    Spot density, density profile measurement

  • 47 m (154 ft)

  • OIML, NMi, PTB

  • Mérési elv

    Servo / Float Tank Gauging

  • Servo Tank Gauging: High precision measurement for liquid level, interface, spot density, profile density

  • Custody transfer level measurement

    Interface measurement

    Spot density, density profile measurement

  • 85-264 VAC

  • up to 0.4 mm

  • Standard:

    -40°C…60°C

    (40°F...140°F)


    For calibration to regulatory Standards:

    -25°C…55°C

    (-13°F...131°F)

  • -200°C...200°C

    (-328°F...392°F)

  • up to 25 bar (363 psi) abs

  • 316L, AlloyC276, PTFE

  • Flange:
    DN80/3" / DN100/4" / DN150/6"

  • 47 m (154 ft)

  • 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)

  • ATEX, FM, IEC Ex, NEPSI, EAC

  • EN 10204-3.1

    NACE MR0175, MR0103

  • OIML, NMi, PTB

  • Redundant fieldbus

    Alu-coated or 316L housing

    Weather protection cover

    Guide wire assembly

    Relief valve

    Gas purging nozzle connection

    Pressure gauge
    Cleaning nozzle connection

  • Stilling well or guide wires for turbulent
    application

    Recommend PTFE displacer for high
    viscosity application

    Recommend AlloyC276 displacer for corrosive application

    Interface measurement requires min. difference of 0.100 g/ml
    between layers

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