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Proservo NMS81 - Tank gauging instrument

Servo tank gauging instrument
Proservo NMS81

High precision servo measurement for liquid level, interface and density

NMS81
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Proservo NMS81 - Tank gauging instrument
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©Endress+Hauser
Proservo NMS81 - Tank gauging instrument
  • F
  • L
  • E
  • X
©Endress+Hauser
Proservo NMS81 - Tank gauging instrument
  • F
  • L
  • E
  • X
©Endress+Hauser
Proservo NMS81
  • F
  • L
  • E
  • X
©Endress+Hauser
Proservo NMS81
  • F
  • L
  • E
  • X
©Endress+Hauser

Specs at a glance

  • Accuracy

    up to 0.4 mm

  • Process temperature

    -200°C...200°C
    (-328°F...392°F)

  • Process pressure absolute / max. overpressure limit

    up to 25 bar (363 psi) abs

  • Max. measurement distance

    47 m (154 ft)

  • Main wetted parts

    316L, AlloyC276, PTFE

Field of application

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.

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 (154ft)

  • Accuracy: ±0.4mm (±0.02")

  • International explosion protection and custody transfer certificates, overfill prevention WHG, SIL

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 ±0.4mm (± 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

  • Superior corrosion resistance with 316L materials in the process compatible with sour applications such as crude oil

  • Measurement of interfaces between up to three liquid layers, tank bottom, spot, and profile densities

  • Best fit for LNG/LPG applications without influence of dc value or Boil Off Gas

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