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NG # 05680008-HW-FLEXIM-008
Non-Intrusive Ultrasonic Flow Meter – FLUXUS H721 is designed for standard volume flow measurement using clamp-on ultrasonic technology. It provides bidirectional measurement, pressure and temperature compensation, high turndown, and hazardous-area-approved transducers without requiring pipe modification or process interruption. Note: Emerson currently lists the H721 as obsolete.
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Get A QuoteThe Flexim FLUXUS H721 is a non-intrusive ultrasonic flow metering system developed for accurate standard volume flow measurement. It combines advanced flow analysis with automatic fluid and interface identification, while pressure and temperature inputs enable standard-volume compensation. Temperature-compensated transducers provide stable, drift-free measurement, and bidirectional flow capability supports flexible process monitoring. The system uses rugged mounting hardware and transducers approved for ATEX/IECEx Zone 2 and FM Class I, Division 2 applications. Emerson currently identifies the H721 as an obsolete product and recommends contacting a local representative for measurement requirements.
Flow Velocity Range: 0.01–35 m/s (0.03–115 ft/s)
Fluid Type: Gases and Liquids
Measurement: Standard Volume Flow
Accuracy: ±0.3% of reading ±0.005 m/s
Repeatability: ±0.15% of reading ±0.005 m/s
Flow Channels: 2
Pipe Size: 7 mm–1.6 m (0.28–63 in.)
Process Temperature: -40 to +200°C (-40 to +392°F)
Ambient Temperature: -20 to +60°C (-4 to +140°F)
Power Supply: 100–240 VAC; 10.5–13.5 VDC; Integrated Battery
Communication: Modbus RTU
Output: 2 Current Outputs, 2 Digital Outputs
Input: 2 Temperature Inputs, 2 Current Inputs
Approval: Safe Area Only
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