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Picture of ultrasonic flowmeter Proline Prosonic Flow 91W for water and wastewater applications

Proline Prosonic Flow 91W
ultrasonic flowmeter

Device with automatic frequency scan for max. measuring performance and cost-effective transmitter

91W
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Picture of ultrasonic flowmeter Proline Prosonic Flow 91W for water and wastewater applications ©Endress+Hauser

Proline Prosonic Flow 91W for water and wastewater applications

Proline Prosonic Flow 91W for water and wastewater applications

Specs at a glance

  • Max. measurement error

    Volume flow:
    ±3% o.r. for DN15
    ±2% o.r. for DN25 to 200
    ±2% o.r. above DN200

  • Measuring range

    0.3 to 10 m/s (1 to 33 ft/s)

  • Medium temperature range

    -20 to +80°C (-4 to +176 °F)
    0 to +130°C (32 to +265 °F) option

  • Max. process pressure

    N/A

  • Wetted materials

    Clamp on system:
    Sensor holder 1.4308/CF-8
    Sensor housing 1.4301/304
    Strapping bands 1.4301/304

Field of application

The Prosonic Flow W clamp-on sensor is specially designed for water and wastewater applications. Combined with the cost-effective Prosonic Flow 91 transmitter with push buttons, Prosonic Flow 91W is ideally suited for flow monitoring in the water industry.

  • The measuring principle is independent of pressure, density, temperature, conductivity and viscosity

  • Clamp-on flow measurement of process water, salt water, deminerialized water, drinking & wastewater.

Device properties:

  • Medium temperature: –20 to +80 °C (-4 to +176 °F)

  • Degree of protection IP68 (Type 6P enclosure) for pipes under water

  • Shock and vibration resistance according to IEC 68-2-6

  • Aluminium field transmitter housing

  • 2-line display with push buttons

  • HART

Benefits

  • Low capital investment – cost-effectiveness increases with pipe diameter (up to DN 2000)

  • Long-term stable signal - maintenance-free permanent mounting from outside with coupling pads

  • Process transparency – diagnostic capability

  • Economical transmitter – designed for easy applications

  • Fast and reliable commissioning – Quick Setup menu for installation

  • Automatic recovery of data for servicing

Videos

  • The Ultrasonic Flow Measuring Principle

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Variable

FLEX selections Technical excellence Simplicity
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Fundamental selection

Meet your basic measurement needs

Technical excellence
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  • E
  • X

Lean selection

Handle your core processes easily

Technical excellence
Simplicity
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  • E
  • X

Extended selection

Optimize your processes with innovative technologies

Technical excellence
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Xpert selection

Master your most challenging applications

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