• Portable transmitter covered by FM Class I Div. 2 certification
• Two flow channels, bidirectional measurement
• HybridTrek: automatic switching between transit time and NoiseTrek mode for high particulate flows
• Measurement uncertainty of the measuring system ±0.3 % of reading ±0.02 ft/s, calibration certificate traceable to NIST from an ISO 17025 accredited facility
• Li-Ion battery for up to 25 hours of measurement operation
• Automatic loading of calibration data and transducer detection, set-up in less than 5 minutes
• Carbon fiber housing, water tight and resistant against oil, many liquids, and dirt
• Transducers for a wide range of inner pipe diameters and fluid temperatures (-328 to +1112 °F)
• Integrated data logger for more than 100 000 measured values

• Upstream on- and offshore flow surveys
• Midstream and downstream: pipelines and refineries
• Verification of installed flowmeters without removing them from the line
• Chemical industry flow checks in classified areas
• Energy sector: HVAC, geothermal, and power plants

• Type: portable ultrasonic flowmeter for liquids, FM Class I Div. 2
• Measurement principle: transit time difference correlation principle, automatic NoiseTrek selection for measurements with high gaseous or solid content
• Flow velocity: 0.03 to 82 ft/s
• Repeatability: 0.15 % of reading ±0.02 ft/s
• Fluid: all acoustically conductive liquids with < 10 % gaseous or solid content in volume (transit time difference principle)
• Measurement uncertainty of the measuring system: ±0.3 % of reading ±0.02 ft/s, includes calibration certificate traceable to NIST, calibration facility ISO 17025 accredited (with aperture calibration of the transducers)
• Measurement uncertainty at the measuring point: ±1 % of reading ±0.02 ft/s (for transit time difference principle and reference conditions)
• Temperature compensation: corresponding to the recommendations in ANSI/ASME MFC-5.1-2011
• Physical quantities: volumetric flow rate, mass flow rate, flow velocity, thermal energy rate (if temperature inputs are installed)
• Totalizer: volume, mass, optional: thermal energy
• Number of measuring channels: 2
• Power supply: 100 to 230 V/50 to 60 Hz (power supply unit, outside of explosive atmosphere), 10.5 to 15 V DC (socket at transmitter), integrated battery
• Integrated battery: Li-Ion, 7.2 V/6.2 Ah; operating time > 14 h (without inputs and backlight), > 25 h (1 measuring channel, ambient temperature > 50 °F, without inputs and backlight)
• Power consumption: < 6 W (with inputs and backlight), charging: 18 W
• Response time: 1 s (1 channel), option: 0.07 s
• Housing material: PA, TPS, PC, Polyester, stainless steel
• Degree of protection: NEMA 4
• Weight: 4.9 lb
• Fixation: QuickFix pipe mounting fixture
• Ambient temperature: 14 to 140 °F
• Display: 2 x 16 characters, dot matrix, backlight
• Inputs: max. 4; temperature input Pt100/Pt1000, 4-wire, -238 to +1040 °F
• Service interfaces: RS232, USB (with adapter)
• Data logger: > 100 000 measured values
• Transport case: 19.7 x 15.7 x 7.5 in
• Hazardous area, FM: NI/Cl. I /Div. 2/ GP. A,B,C,D / T5 Ta = 60 °C

A portable clamp-on flowmeter is the fastest way to answer a flow question without touching the process: is the installed meter right, is the pump delivering, where is the imbalance. In classified areas that tool has to carry the right approval. The Flexim FLUXUS F608 is covered by FM Class I Div. 2 certification, together with its rugged transducers.

The F608 measures on the transit time difference correlation principle, and HybridTrek switches automatically to NoiseTrek mode when the liquid carries high gaseous or solid content. It runs two flow channels, loads calibration data and detects the transducers automatically, and is ready in less than 5 minutes. The measuring system reaches ±0.3 % of reading ±0.02 ft/s, with a calibration certificate traceable to NIST from an ISO 17025 accredited facility.

The carbon fiber transmitter weighs 4.9 lb, is water tight and resistant against oil and dirt, and runs up to 25 hours on its Li-Ion battery. The integrated data logger stores more than 100 000 measured values, and optional temperature inputs add thermal energy rate. Once the survey is done, a permanent meter such as the FLUXUS F731 or, for Div. 1 areas, the FLUXUS F831 can take over.

The FLUXUS F608 is available through AV-TEK Consulting in North America. Flexim is part of Emerson. Transducer selection depends on your pipe diameters and fluid temperatures, and AV-TEK helps you build the kit around the lines you measure. Explore more clamp-on flow meters and the full Flexim range.