The selection of ultrasonic flowmeter should pay attention to several problems
The selection of ultrasonic flowmeter should pay attention to several problems
1, the measurement site is suitable for the use of ultrasonic flowmeter, if there is strong magnetic field interference nearby, or the pipeline vibration is particularly intense, the measurement can not be selected; Close to elbows, valves, tees, pumps and other water flow disorders are not suitable for selection;
2, whether the material of the pipeline to be tested is conducive to ultrasonic transmission, carbon steel, stainless steel, PVC plastic, copper and other dense materials can use ultrasonic flow meters, while cement pipes, foamed plastic pipes, threaded pipes and so on are not suitable for use;
3, whether the measured medium is conducive to ultrasonic transmission, all kinds of water, ultra-pure water, alcohol, soy sauce, beer, etc., can use ultrasonic flowmeters for non-contact health measurement, and some organic chemical raw materials need to be tested;
4, the measured medium is full pipe state, whether the water flow is stable, if the medium in the pipeline is not satisfied with the pipe, or even less than half the water level, it can not be measured.