Ultrasonic water meters and transit-time ultrasonic flowmeters have some differences in aspects such as principle, application scenarios, and accuracy, which are as follows:
1. Measurement Objects:
Ultrasonic Water Meters: They are mainly used for measuring the flow rate of water and are typically applied in fields like urban water supply, residential water consumption, and industrial water usage. They accurately measure the flow of water, which is convenient for water fee settlement and water resource management.
Transit Time Ultrasonic Flowmeters: They can measure a variety of fluids, including water, chemical liquids, petroleum, alcohol, and other various fluids. They are widely applied in industrial fields such as chemical engineering, petroleum, metallurgy, and electric power, as well as in the measurement of raw water in rivers, lakes, and reservoirs.
2. Accuracy
Ultrasonic Water Meters: Generally, a relatively high level of accuracy is required to meet the need for accurately measuring water consumption and settling water fees. Typically, the accuracy of ultrasonic water meters can reach ±1% or even higher.
Transit Time Ultrasonic Flowmeters: The accuracy is also relatively high, but it may vary according to different application scenarios and requirements. For example, in some industrial process control scenarios, the accuracy may be required to reach ±0.5% or higher. While in some scenarios where the accuracy requirement is relatively low, such as the flow measurement of large-diameter pipelines, the accuracy may be around ±1% – ±2%.
3. Functional Characteristics
Ultrasonic Water Meters: They feature a low initial flow velocity, a wide range ratio, high measurement accuracy, stable operation, no moving parts inside, no flow-blocking elements, and are not affected by impurities in the water, ensuring a long service life. In addition, ultrasonic water meters usually have complete output communication functions, meeting various communication and wireless networking requirements, and are capable of realizing functions such as remote meter reading.
Transit Time Ultrasonic Flowmeters: They have the characteristics of non-contact measurement, no additional pressure loss, the ability to measure non-conductive liquids, suitability for large circular and rectangular pipelines, and in principle, are not limited by the pipe diameter. Some time-difference ultrasonic flowmeters are also equipped with the function of measuring the propagation time of sound waves, which can be used to measure the sound velocity of the liquid to determine the type of liquid being measured.
4. Installation Methods
Ultrasonic Water Meters: They are generally installed on pipelines, and there are various connection methods with the pipelines, such as flange connection and threaded connection. When installing, factors such as the diameter of the pipeline, the material of the pipeline, and the installation location need to be taken into consideration to ensure the measurement accuracy.
Transit Time Ultrasonic Flowmeters: The installation methods are relatively diverse, including external clamping type, insertion type, and pipe section type, etc. The external clamping type installation does not require cutting the pipeline, which is convenient for installation and is suitable for temporary measurement or occasions where it is not easy to install a pipe section type flowmeter. For the insertion type installation, it is necessary to make a hole in the pipeline and insert the transducer into the pipeline. The pipe section type installation integrates the transducer and the measuring pipe, and it is necessary to cut open the pipeline during installation, but its measurement accuracy is relatively high.
Post time: Mar-24-2025