The correct selection of ultrasonic flowmeter can ensure the better use of ultrasonic flowmeter. What kind of ultrasonic flowmeter should be selected should be determined according to the physical and chemical properties of the measured body medium, so that the diameter, flow range, lining material, electrode material and output current of the ultrasonic flowmeter can adapt to the properties of the measured body and the requirements of flow measurement. Precision function check accuracy level and function according to the measurement requirements and the use of the instrument precision level, so as to be economical.

For example, for trade settlement, product handover and energy measurement, the accuracy level should be higher, such as 1.0, 0.5, or higher; For process control, different precision levels are selected according to control requirements; Some just detect the process flow, do not need to do precise control and measurement occasions, you can choose a slightly lower accuracy level.

When measuring the flow rate of the medium, the meter range and the diameter of the general medium, the full degree flow rate of the ultrasonic flowmeter can be selected in the range of 0.-32m/s for measuring the flow rate of the medium, and the range is relatively wide. The selection of instrument specifications (caliber) is not the same as the process pipeline, should be determined according to the measurement flow range, in the flow rate range, that is, when the pipeline flow rate is low, can not meet the requirements of the flow meter or the measurement accuracy cannot be guaranteed at this flow rate, it is necessary to reduce the diameter of the instrument, so as to increase the flow rate in the tube, to obtain satisfactory measurement results.