Ultrasonic flow meter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of non-fouling operation and easy installation.
Ultrasonic flow meter is transit time clamp on flow meter utilizes two transducers that function as both ultrasonic transmitters and receivers. The transducers are clamped on the outside of a closed pipe at a specific distance from each other. The transducers of flow masonic flow meter can be mounted in V-method where the sound transverses the pipe twice, or W-method where the sound transverses the pipe four times, or in Z-method where the transducers are mounted on opposite sides of the pipe and the sound crosses the pipe once.
This selection of the mounting method depends on pipe and liquid characteristics. Ultrasonic flow meter operates by alternately transmitting and receiving a frequency modulated burst of sound energy between the two transducers and measuring the transit time that it takes for sound to travel between the two transducers. The difference in the transit time measured is directly and exactly related to the velocity of the liquid in the pipe.
Non-Invasive, Clamp-on Transducers
Since ultrasounds propagate in solids, the transducers can be mounted onto the pipe. The measurement is therefore non-invasive, and no cutting of pipes is necessary for the installation of the transducers. Because with just 3 sets of transducers, pipes ranging from 15mm to 6000mm can be covered, the ownership cost doesn’t increase as the pipe size increases, which is the decisive cost saving factor as compared to traditional flow meters.
The Features of Ultrasonic Flow Meter :
- The sensors being clamp-on type, there’s no pressure loss. The sensors are easily mounted on the surface of the pipe without interrupting the flow for installation or maintenance.
- Advanced intelligent display, computation and printing(data logger) to suit user’s diversified requirements. The flow is displayed in all pertinent engineering units. It runs out of regular AC power(110V/220V), built-in batter or DC power.
- Using the most advanced direct-time-measuring method, the meter offers a signal resolution of 0.2ns. In addition, advanced data processing functions ensure Flowmasonic series WUFof high linearity.
- Signal outputs including current signal, frequency signal, serial data, switch outputs(1 OCT and 1 relay output). All the outputs displayed on the unit can be transmitted to a PC via RS-232/485 for further processing or storage.