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The FLUXUS F731 TE from Flexim is engineered for precise thermal energy monitoring in both heating and cooling systems. This all-in-one device simultaneously measures flow rates, captures temperature readings, and calculates thermal energy usage. It complies with the EN 1434 standard for thermal energy metering. Flow measurements are performed non-invasively using clamp-on ultrasonic sensors, eliminating the need for pipe modifications.

Temperature data is gathered at both the supply and return lines using either clamp-on surface sensors or insertion probes, depending on system requirements. The F731 TE also supports dual-channel configuration, enabling it to monitor two pipelines at once for comprehensive and reliable performance.

Ultrasonic Clamp-On Flow Meter Rentals

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Flexim FLUXUS F731 TE Heat and Cold Metering in any Environment

Specs

Fluid type
Air, nitrogen, oxygen, helium, argon
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…2 % 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 to 35 m/s (0.03 to 115 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
10 to 250 mm (0.39 to 9.8 inch)
Pressure range
1barg (15 psig) to unlimited
Temperature range (media)
-40 to +130°C ('-40 to +266°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

Features

  • Non-intrusive compressed air and technical gas flow measurement from 3 bar absolute onwards.
  • Available as a dual channel meter, stainless steel housing, ATEX/IECEx and FM approval.
  • Integrated standard volume flow calculation.
  • Extreme measurement dynamics from lowest to highest flow velocities - easy detection of leakages and load peaks.
  • Bi-directional measurement, able to detect back-flow.
  • Simple and cost-effective retrofitting without shut down.
  • USB and LAN interface.
  • Communication interfaces Modbus TCP, Modbus RTU, BACnet MS/TP, BACnet IP, M-Bus.
  • Advanced Meter Verification.
  • ISO 24062 compliant.
  • Flow disturbance correction to reduce required straight runs down to 2D inlet.