NFSOUND Ultrasonic Flowmeter
The NFSOUND ultrasonic flowmeter is a general-purpose liquid flow instrument developed with a low-power MCU, high-performance integrated circuits and microprocessor technology. Based on the ultrasonic transit-time principle, it supports clamp-on or insertion installation for liquid flow measurement in round pipes, delivering convenient, economical and accurate metering for industrial sites.
Product Overview
▅ Product Overview
The instrument integrates multi-pulse technology, digital signal processing and error-correction algorithms. It can measure single-phase homogeneous liquids such as water, seawater, oil and slurry, and is compatible with conductive or non-conductive, corrosive or non-corrosive liquid media.
▅ Product Features
Non-intrusive measurement: Clamp-on transducers can be installed outside existing pipelines without stopping flow or cutting pipes.
No pressure loss: The measurement process does not obstruct the fluid path, helping reduce system energy consumption.
Wide pipe adaptability: Suitable for large round pipelines and difficult-to-calibrate flow conditions, with pipe inner diameter coverage from DN15 to DN3600.
Non-conductive liquid capability: Provides an effective supplement to electromagnetic flowmeters where non-conductive liquids need to be measured.
Industrial communication: Supports 4-20 mA output and RS485 output with Modbus protocol; optional temperature input supports heat measurement.
▅ Key Technical Parameters
Measurement principle: ultrasonic transit-time method
Accuracy: flow class 1.0; heat meter class 2 or better
Repeatability: ±0.2%; linearity: ±0.5%
Output: 4-20 mA DC; RS485 with Modbus protocol
Pipe materials: steel, stainless steel, cast iron, cement pipe, copper, PVC, aluminum, FRP and other dense pipe materials
Pipe inner diameter: DN15-DN3600
Recommended straight pipe section: upstream 10D, downstream 5D, 30D from pump outlet
Measurable media: water, seawater, industrial wastewater, acid/alkaline liquids, alcohol, oils and other single-phase homogeneous liquids capable of transmitting ultrasonic waves
Medium temperature: -30°C to 160°C; standard probe -30°C to 90°C; high-temperature probe -30°C to 160°C
Turbidity: up to 10000 ppm with low bubble content
Flow velocity: 0 to ±10 m/s
Operating temperature: converter -20°C to 60°C; sensor -30°C to 160°C
Ingress protection: sensor up to IP68 with potting; converter IP65
Power supply: 8-36 V DC, 85-264 V AC or 3.6 V lithium battery, depending on configuration
▅ Application Scenarios
Water supply and drainage, petrochemical, metallurgy and mining, heating, power generation, water resources, energy-saving monitoring, water-saving management, paper making, shipbuilding, food, pharmaceutical and related industrial flow-metering applications.
▅ Application Value
With non-intrusive and no-pressure-loss measurement, the instrument reduces installation and maintenance cost, improves pipeline efficiency and provides stable metering for large-diameter, difficult-to-calibrate and non-conductive liquid applications.