Servo tank gauging instrument
Proservo NMS80

Proservo NMS80 ©Endress+Hauser
Proservo NMS80 ©Endress+Hauser

High precision servo measurement for liquid level, interface and density

The intelligent tank gauge Proservo NMS80 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.

  • Voordelen

    • 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...

  • Toepassingsgebied

    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 +6bar (0 to +87psi)

    • Maximum measuring range: 36m (118ft)

    • Accuracy: ±0.4mm (±0.02")

    • ...

Kenmerken en specificaties



  • Meetprincipe

    Servo / Float Tank Gauging

  • Characteristic / Application

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

  • Specialities

    Custody transfer level measurement

    Interface measurement

    Spot density, density profile measurement

  • Supply / Communication


  • Accuracy

    up to 0.4 mm

  • Ambient temperature




    For calibration to regulatory



  • Process temperature



  • Process pressure absolute / max. overpressure limit

    0,2...6 bar abs

  • Main wetted parts

    316L, AlloyC276, PTFE

  • Process connection


    DN80/3" / DN150/6"

  • Max. measurement distance

    36 m (118 ft)

  • Communication


    Fieldbus: Modbus RS485, V1, HART

    Analog 4-20mA output (Exi/ Exd)

    Relay output (Exd)


    Analog 4-20mA input (Exi/ Exd)

    2-, 3-, 4-wire RTD input

    Discrete input (Exd, passive/ active)

  • Certificates / Approvals


  • Metrological approvals and certificates

    OIML, NMi, PTB

  • Options

    Redundant fieldbus

    Weather protection cover

    Guide wire assembly

    Relief valve

    Gas purging nozzle connection

    Pressure gauge

    Cleaning nozzle connection

  • Application limits

    Stilling well or guide wires for turbulent

    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

Documenten / handleidingen / software

Accessoires / Spare parts

Order code
  • 10
    • Nr 10 Order code 71273748

      Drum Housing Cover, Alu

      Drum behuizing van aluminium. Gebruik: Proservo NMS 80.

  • 20
    • Nr 20 Order code 71273749

      Calibration window cover, Alu

      Kalibratie onslagvenster gemaakt van aluminium met inbegrip van glas en houder. Gebruik: Proservo NMS 80.

  • 39
    • Nr 39 Order code 71273688

      Cable, mainboard to electronics, Servo

      Kabel naar platform om moederbord aan te sluiten tot elektronica Proservo. Gebruik: Proservo NMS 80/81/83.

  • 50
  • 51
    • Nr 51 Order code 71273689

      Sensor module, Servo

      Elektronica voor op de detectoreenheid. Gebruik: Proservo NMS 80/81/83.

  • 33,34,35,3
    • Nr 33,34,35,3 Order code XPN0031-

      I/O Module NMR81/84, NRF81, NMS80/81/83

      Gebruik: NRF81, NMR81/NMR84, NMS80/NMS81/NMS83.

  • 65
    • Nr 65 Order code 71319738

      Seal, HNBR, FVQM, EPDM, NMS80

      HNBR: back cover, kalibratie venster, FVQM: beeldscherm. EPDM: gore tex filter. Gebruik: Proservo NMS 80.

    • Nr 65 Order code 71319973

      Seal, FKM, FVQM, EPDM, NMS80

      FKM: back cover, kalibratie venster. FVQM: beeldscherm. EPDM: gore tex filter. Gebruik: Proservo NMS 80.

    • Nr 65 Order code 71319975

      Seal, CR, FVQM, EPDM, NMS80

      CR: back cover, kalibratie venster FVQM: beeldscherm. EPDM: gore tex filter. Gebruik: Proservo NMS 80.

    • Nr 65 Order code 71319979

      Seal, PTFE, FVQM, EPDM, NMS80

      PTFE: back cover, kalibratie venster. FVWM: beeldscherm. EPDM: gore tex filter. Gebruik: Proservo NMS 80.

    • Nr 65 Order code 71319983

      Seal, VMQ, FVQM, EPDM, NMS80

      VMQ: back cover, calibration window. FVQM: display cover. EPDM: goretex filter. Usage: Proservo NMS80.

  • 80
    • Nr 80 Order code 71273690

      Wire drum bracket, Alu

      Draad vat beugel van aluminium. Gebruik: Proservo NMS 80.

    • Nr 80 Order code 71273744

      Wire ring, 316L

      Draad ring van 316L verbinding meten draad met verdringer. Gebruik: Proservo NMS 80/81.

    • Nr 80 Order code 017800-0243

      Wire ring, AlloyC

      Wire ring made of AlloyC to connect measuring wire with displacer. Usage: NMS5/NMS7, NMS80/NMS81/NMS83.

    • Nr 80 Order code 71273746

      Wire ring, PTFE

      Draadring van PTFE om aan te sluiten meetdraad met verdringer. Gebruik. nms80/81/83, nms5/nms5/ngm5: NMS80/81/83, NMS5/NMS7, TGM5.

  • 82
    • Nr 82 Order code 71273739

      Bearing, wire drum bracket, PTFE

      Dragende op de draad van vat beugel ondersteuning van PTFE. Gebruik: Proservo NMS 80/81/83.

  • 86
    • Nr 86 Order code 71273740

      Measuring wire, 316L, 0.15mm dia., 60m

      Measuring draad gemaakt van 316L. 0,15 mm diameter met 60 m lengte. Gebruik: Proservo NMS 80/81.

    • Nr 86 Order code 71273742

      Measuring wire, AlloyC, 0.2mm dia., 22m

      Te meten draad gemaakt van legeringen 0,2 mm diameter met 22 meter lengte. Gebruik: Proservo NMS 80/81/83.

    • Nr 86 Order code 56004912

      Measuring wire, 16m, PFA>316L, 0.4 mm

      PFA gecoat 0.4 draads, 16m, PTFE O-ring. Gebruik: NMS5, TGM5.

  • 14
    • Nr 14 Order code 71312592

      Blind plug, M20, 316L, O-ring EPDM, TG

      Bestaat uit: blinde plug, O-ring 18.0x2.0. Gebruik: huisvesting F 35/36/37/38, NMR81 / NMR84, NRF81, NMS80 / NMS81 / NMS83.

  • 20
    • Nr 20 Order code 71312596

      Cover Alu, sight glas, gasket, TG

      Materiaal: aluminium. Bestaat uit: O-ring deksel FVMQ, PTFE-gecoate. Gebruik: huisvesting F35/36, NMR81/NMR84, NRF81,NMS 80/NMS 81/NMS 83.

  • 17
    • Nr 17 Order code 71312627

      Cover clamp, 2 pcs., TG

      Gebruik: behuizing F 35/36/37/38. NMR81/NMR84,NRF81,NMS80/NMS81/NMS83.

  • 40
    • Nr 40 Order code 71312638

      Display set, RS485, holder, TG

      Bestaat uit: operatie-module, A300,optische knopen, -display houder, bevestigingsring, dekking. Gebruik: NMR81/NMR84,NRF81, NMS80/NMS81/NMS83.

  • 41
    • Nr 41 Order code 71312640

      Display holder, fixing ring, TG

      Bestaat uit: vaststelling ring, houder. Gebruik: NMR81/NMR84, NRF81, NMS80/NMS81/NMS83.

  • 37
    • Nr 37 Order code 71324756

      Terminal set, I/O module, Push-in, TG

      Bestaat uit: voltooien terminal set. Gebruik: NMR81/NMR84,NRF81, NMS80/NMS81/NMS83.

    • Nr 37 Order code 71324757

      Terminal set, I/O module, screw type, TG

      Bestaat uit: complete aansluitingset. Gebruik: NMR81/NMR84,NRF81, NMS80/NMS81/NMS83.

  • 88
  • 84