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Cost-effective Ultrasonic Flowmeter Proline Prosonic Flow 91W

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Cost-effective Ultrasonic Flowmeter Proline Prosonic Flow 91W series
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Description

Application

The Prosonic Flow W clamp-on sensor is specifically engineered for water and wastewater applications. Paired with the budget-friendly Prosonic Flow 91 transmitter featuring push-button controls, the Prosonic Flow 91W is the ideal solution for flow monitoring in the water industry.

This flowmeter’s measuring principle is unaffected by variations in pressure, density, temperature, conductivity, or viscosity.

It supports clamp-on flow measurement for process water, saltwater, demineralized water, drinking water, and wastewater.

Device Features:

  • Operating temperature range: –20 to +80 °C (-4 to +176 °F)
  • Protection rating: IP68 (Type 6P enclosure), suitable for submerged pipes
  • Compliant with shock and vibration standards per IEC 68-2-6
  • Rugged aluminum transmitter housing
  • Two-line display with push-button controls
  • HART communication protocol

Benefits

  • Low upfront investment: Cost efficiency increases with larger pipe diameters (up to DN 2000).
  • Stable and reliable performance: Maintenance-free installation with permanent external mounting using coupling pads.
  • Process visibility: Integrated diagnostics enhance system transparency.
  • Cost-effective transmitter: Designed for straightforward applications.
  • Quick and easy setup: The Quick Setup menu streamlines installation.
  • Data safety: Automatic data recovery simplifies maintenance and servicing.

 

SPECIFICATIONS

Pressure Specifications

Measuring principle Ultrasonic flow
Product headline

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

Clamp-on flow measurement of process water, salt water, demineralized water, drinking & wastewater.
Sensor features

Low capital investment – cost-effectiveness increases with pipe diameter (up to DN 2000/80"). Long-term stable signal – maintenance-free permanent mounting from outside with coupling pads. Process transparency – diagnostic capability.

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.
Transmitter features

Economical transmitter – designed for easy applications. Fast and reliable commissioning – Quick Setup menu for installation. Automatic recovery of data for servicing.

Aluminium field transmitter housing. 2-line display with push buttons. HART.
Nominal diameter range Single channel, 1 or 2 paths : DN15 to 2000 (1/2 to 80")
Wetted materials

Clamp on system:

Sensor holder 1.4308/CF-8

Sensor housing 1.4301/304

Strapping bands 1.4301/304
Measured variables Volume flow, sound velocity, flow velocity, signal strength, totalizer
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)

Max. process pressure

 N/A

Medium temperature range

-20 to +80°C (-4 to +176 °F)

0 to +130°C (32 to +265 °F) option
 Ambient temperature range  -20 to +60 °C (-4 to +140 °F)
 Sensor housing material  N/A
 Transmitter housing material  AlSi10Mg, coated
 Degree of protection  IP67, type 4X for transmitter

IP67 type 4X for sensors

IP68 type 6P for sensors (option). IP67 NEMA 4X
 Display/Operation  2 lines backlit display with 3 push button
 Outputs  1x 4-20 mA HART (active)

1x Pulse/frequency/switch output (passive)
 Inputs  N/A
 Digital communication  HART
 Power supply  AC 85 to 250 V

20 to 28 V

DC 11 to 40 V
 Hazardous area approvals  Non hazardous area

FM, CSA
 Other approvals and certificates

Flowmeter verification for DN15, 25, 40, 50 & 100 only

EAC marking
 Product safety  CE, C-Tick, EAC marking
 Metrological approvals and certificates  Flowmeter verification for DN15, 25, 40, 50 & 100 only

 

Documents

You may want to read this product's catalog. If so, please click to view the Endress+Hauser Proline Prosonic Flow 91W Series datasheet.
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