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FLUXUS F731 Non-intrusive Ultrasonic Liquid Flow Meter

The Flexim FLUXUS F731 is a technological breakthrough in the ultrasonic clamp-on volume and mass flow measurement of liquids. Highly sophisticated signal filters, faster than ever processing capacities and advanced measurement algorithms make the FLUXUS F731 ultrasonic clamp-on liquid flow meter the standard-setting measuring solution for any industrial application. With the new Synchronised Channel Averaging (SCA) method and flow profile correction, the F731 ultrasonic flowmeter is ready for the most challenging conditions.

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  • Accuracy and repeatability – exceptional reliability and accuracy at high and low flows due to matched, calibrated and temperature compensated transducers, advanced signal processing capabilities and diagnostics.
  • Easy installation without process interruptions – an externally mounted system means no need for process interruptions or additional engineering costs.
  • Maintenance-free – no contact with flowing media results in a completely maintenance- free and durable metering solution to withstand even the harshest environments.
  • Operational safety – no leak paths, no fugitive emissions.
  • Advanced Meter Verification
  • Certified for operation within hazardous areas (FMc Class I Division 2, ATEX/IECEx Zone 2)
  • Every measurement system is pre-calibrated in-house (traceable to national standards) and delivered with a calibration certificate.
  • Matched transducers, integrated temperature compensation (according to ANSI/ASME MFC-5.1-2011 regulations) and digital signal processing guarantee a high zero-point stability and drift-free measurement readings.
  • ISO 24062 compliant
  • Flow disturbance correction to reduce required straight runs down to 2D inlet
Fluid type All liquids
Accuracy Measurement uncertainty of the measuring system (volumetric flow rate): ±0.3 % of reading ±0,005 m/s (±0.02 ft/s)
Measurement uncertainty at the measuring point (volumetric flow rate): ±1 % of reading ±0,005 m/s (±0.02 ft/s)
Repeatability 0.15 % of reading ±0,005 m/s (±0.02 ft/s)
Flow Channels up to 2
Range Flow Velocity Range: 0,01…25 m/s (0.03 to 82 ft/s), depending on pipe diameter
Certifications/Approvals FM Class I /Div 2
ATEX/IECEx Zone 2
Power supply 90-264VAC
11-32VDC
Pipe size 6 to 6500 mm (0.24 to 255.9 inch)
Pressure range –
Temperature range (media) -40 to +200°C (‘-40 to +392°F) / WI: -200 to +630°C (-328 to +1166°F)
Output 4-20mA active/passive
4-20mA HART® active/passive
pulse/frequency/binary
Input Temperature 4-20mA active/passive
Communication Protocol Modbus RTU/TCP
BACnet MSTP/IP
Profibus PA
FOUNDATION Fieldbus
M-Bus
System configuration and installation For more detailed Information please download the Technical Specifications

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