FSV Ultrasonic Flow meter
Fuji’s Fixed Ultrasonic Flow meter
This fixed-mount ultrasonic flow meter applies a measurement method based on transit time difference. By taking advantage of the latest electronic advances and digital signal processing technology, Fuji has developed a compact, lightweight device with enhanced accuracy and ease of use, while retaining excellent immunity to air bubble formation.
The non-intrusive ultrasonic flowmeter for liquids optimizes your industrial processes and saves energy. Ultrasonic flow measurement technology reduces costs and improves plant safety. Thanks to its precise flow measurement capability, this device offers a reliable solution for real-time monitoring and process optimization.
Technical advantages of ultrasonic flow meters
- No pipe cut-off
- No pressure drop
- No contact with the liquid
- No risk of leakage
- No risk of contamination of the fluid
Fields of application
Non-intrusive ultrasonic flow meters are used in a wide range of industrial applications: food and beverage, water and wastewater, agriculture and irrigation, water management in buildings for energy savings, commissioning and maintenance of buildings (hotels, hospitals, etc.), water parks, swimming pools and aquariums, and the semiconductor industry.
How does an ultrasonic liquid flowmeter work?
Fuji Electric ultrasonic flowmeters use the transit time difference method (different from the Doppler principle) to determine flow rates. Unlike Doppler ultrasonic flowmeters, which measure the frequency of ultrasonic waves reflected by moving particles, transit time ultrasonic flowmeters operate differently. These flowmeters use the variation in wave propagation time. An ultrasonic wave is sent upstream and downstream of the fluid flow. In one case, the wave is “carried” by the fluid, in the other, it is “braked”. It therefore takes a different time to travel from one ultrasonic transducer to the other. This difference in transit time is proportional to the flow velocity. This method enables fluid flow to be determined with a high degree of accuracy.
Two transducers working at high frequency are installed outside the pipe.
Ultrasonic waves propagate diagonally across the cross-section from the upstream transducer to the downstream transducer, and then from the downstream transducer to the upstream transducer.
The benefits of a non-intrusive ultrasonic flowmeter
- Fuji Electric’s high-tech non-intrusive ultrasonic flowmeter has been developed for the precise measurement of liquid flow and velocity.
- Can be used over a wide range of temperatures and pressures.
- Output signals transmit information to your control or monitoring systems.
- Reduced maintenance, as the sensors are not in direct contact with the fluids being measured.
- The use of transit time technology contributes to the exceptional accuracy of this ultrasonic flowmeter, enabling flow measurement of liquids containing suspended particles or gas bubbles.
- Quick and easy to install on pipes of all materials and diameters. Installation without pipe drilling requires no modifications, no process downtime and no production stoppages. Your installation is completed in a matter of minutes, without interrupting the process. Since the pipe is not cut, there is no risk of liquid leakage.
- Maintenance-free. The non-contact clamp-on sensors have no moving parts. This product requires no calibration or cleaning.
- High-quality materials are used to ensure a long life for your process equipment. The sensors and electronic converters have an excellent protection rating.
- The high-performance 32-bit microprocessor electronics allow an accuracy of ±1 % of your flow rates with a response time of 1 sec.
- Long-term stability and insensitivity to variations in fluid pressure, temperature and viscosity
- Continuous calculation of fluid sonic velocity
- Instantaneous flow, volume and thermal energy are displayed.
The analog 4-20 mA or pulse output signal of these flowmeters ensures simple data transmission.
