FLEXIM FLUXUS F631 EE – Portable Liquid Ultrasonic Flow and Energy Meter

  • NG # 06410001-HW-FLEXIM-001

FLEXIM FLUXUS F631 EE is a portable, non-invasive clamp-on ultrasonic flow and thermal energy meter designed for measuring liquid flow without interrupting process operations. Using transit-time ultrasonic technology, it combines flow and temperature measurement with integrated thermal energy calculation, making it suitable for HVAC systems, chillers, cooling towers and industrial energy monitoring.

 

Manufactured By :
Flexim
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Overview

The FLUXUS F631 EE enables accurate, on-demand liquid flow measurement through externally mounted ultrasonic transducers, eliminating the need for pipe cutting or process shutdown. Its integrated temperature inputs support thermal energy calculations for heating and cooling applications. Advanced diagnostics, flow disturbance correction and NoiseTrek measurement mode help maintain measurement reliability under challenging conditions. Its portable design supports maintenance, meter verification, energy audits and performance assessments across industrial facilities.

Specification

Measuring principle: Ultrasonic transit-time measurement

Process media: Acoustically conductive liquids with less than 10% gaseous or solid content by volume

Flow channels: 2

Flow velocity range: 0.01 … 25 m/s

Measurement uncertainty: ±1% of measured value ±0.005 m/s

Repeatability: ±0.15% of reading ±0.005 m/s

Response time: Down to 0.02 seconds

Pipe inner diameter: 6 mm … 6.5 m (depending on transducer)

Pipe wall temperature: −40 … +200 °C (extension possible with WaveInjector)

Battery operation: 25 hours; up to 80 days in low-power mode

Protection rating: IP65 / IP67

Inputs: Temperature and current

Outputs: 2 switchable current outputs and 2 multipurpose outputs

Communication interface: USB-C; optional Modbus RTU

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