Prosonic Flow Clamp On 91W

Summary

Product identification

• Product line: Proline Prosonic Flow 91W
• Measuring principle: Ultrasonic flow
• Product headline: Device with automatic frequency scan for maximum measuring performance and cost-effective transmitter.
• Description: Clamp-on flow measurement of process water, salt water, demineralized water, drinking & wastewater.

Operating limits

• 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)
• Max. process pressure: N/A

Feed water

• Wetted materials (Clamp on system):
  • Sensor holder: 1.4308/CF-8
  • Sensor housing: 1.4301/304
  • Strapping bands: 1.4301/304

Product water

• Nominal diameter range: Single channel, 1 or 2 paths: DN15 to 2000 (1/2 to 80")

Performance

• 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)
• Measured variables: Volume flow, sound velocity, flow velocity, signal strength, totalizer

Electrical

• Outputs:
  • 1x 4-20 mA HART (active)
  • 1x Pulse/frequency/switch output (passive)
• Digital communication: HART
• Power supply:
  • AC 85 to 250 V
  • DC 20 to 28 V
  • DC 11 to 40 V

Mechanical / hydraulic

• Degree of protection:
  • IP67, type 4X for transmitter
  • IP67 type 4X for sensors
  • IP68 type 6P for sensors (option). IP67 NEMA 4X
• Transmitter housing material: AlSi10Mg, coated
• Display/Operation: 2 lines backlit display with 3 push buttons

Approvals and certificates

• 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

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Disclaimer: This summary is based on extracted text and may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror