This product is obsolete.
Relevant documents and drawings are listed below. Please contact your local Emerson representative for your measurement needs.
Flexim FLUXUS F721 Non-Intrusive Ultrasonic Liquid Flow Measurement
Flexim FLUXUS F721 Non-Intrusive Ultrasonic Liquid Flow Measurement (Obsolete)

Specs

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
PESO
KOSHA
Power supply
100-230VAC
24VDC
12VDC
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
voltage
Input
Temperature
4-20mA active/passive
binary
voltage
Communication Protocol
Modbus RTU/TCP
BACnet MSTP/IP
Profibus PA
Foundation Fieldbus
System configuration and installation
For more detailed Information please download the Technical Specifications

Features

  • Certified for operation within hazardous areas (ATEX/IECEx Zone 2 and FMc Class I, Division 2 certified).
  • High sampling rates (output of measurement data every 10 ms), capturing pulsating flows.
  • Reliable measurements of slurries or liquids with gaseous entrainments.
  • High operational safety with no risk of leaks.
  • Independent of pipe material, diameter, wall thickness and internal pressure and temperature.
  • Accurate and repeatable measurement readings - even at extremely low flow rates (high turndown ratio).
  • Highly cost-efficient in comparison to wetted instrumentation.
  • 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 advanced digital signal processing guarantee a high zero-point stability, drift-free and accurate measurement readings.
  • Permanent coupling ensures long-term reliable non-intrusive flow measurement even under harsh environmental conditions, such as submersion.
  • Bi-directional communication as well as remote parameterization and diagnostic capabilities.
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