Experience | 3 Key Points for Installing Ultrasonic External Level Switches

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What are the precautions for using ultrasonic external level switches? When installing ultrasonic external level switches, it is essential to follow these precautions in order to avoid unnecessary problems. https://imgsa.baidu.com/forum/w%3D580/sign=81a934019d58d109c4e3a9bae159ccd0/529d027a02087bf4562c0096fdd3572c10dfcf92.jpg When using an ultrasonic external level switch, in order to ensure automatic sealing, the liquid inside the container must have a certain pressure, at least 0.2 megapascals. When opening or closing the upper and lower valves, the valve stem must rotate at least four full turns; this is because the steel ball used for sealing should not come into contact with the top of the valve stem, so as to avoid damage. 　　During transportation and handling after unboxing, be sure to avoid touching hard objects to prevent the glass panels from breaking. 　　It is also important to pay attention to the specifications and models; liquid level gauges of inappropriate specifications must not be installed. There are restrictions on certain types of media when it comes to liquid level gauges – for example, media that are corrosive to glass or steel plates cannot be used. 　　For other maintenance and cleaning tasks, the methods for disassembly, cleaning, installation are similar to those for glass tube level gauges. 　　Precautions for the installation and use of magnetic float level gauges: It is necessary to take into account the substance being measured, such as its physical and chemical properties, as well as the operating pressure, temperature, installation conditions, and the rate of level changes. Additionally, measurement and control requirements must be considered, including the measurement range, accuracy, display method, on-site indication, remote indication, interface with computers, safety and corrosion resistance, reliability, and ease of installation. Only by taking all these factors into consideration can an appropriate gauge be selected for use. 　　During installation, it is necessary to ensure that the level gauge is vertical and that the float can move freely; it must not be installed upside down. The rest of the procedures are similar to those for glass plate and glass tube level gauges. 　　The above is an analysis of the precautions for using ultrasonic external level switches; only by knowing the installation and usage methods of various level gauges can we properly install them.