Why choose an ultrasonic external level gauge?

With the development of science and technology, the expansion of chemical production scale and the improvement of intensity, the control and management of the production process are becoming more and more strict, and the process detection instrument and control are becoming more and more critical. Therefore, there are various types of instruments involved in the field. Whether the design and selection of the instrument is scientific and whether it can meet the actual needs and use of the field is a problem that every instrument staff should consider in actual work. If there is a mistake in the selection and design of the control instrument, it will often bring about great losses and seriously affect the safe and stable operation of production. Usually, there are many types of liquid level measurement, and each parameter corresponds to a different model and is suitable for different sites. There are many kinds of measuring instruments, so the selection of the instrument is a very technical and practical work. It not only requires the instrument personnel to have more comprehensive basic knowledge and on-site maintenance experience, but also requires various measurement methods and instrument characteristics before the selection. Do a thorough understanding and detailed comparison. In general, the principle is to first meet the requirements of the process, and then focus on comprehensive consideration from the characteristics of the instrument, installation conditions, environmental conditions and economic factors, so as to select the safest, reliable, economical and durable most suitable for production requirements. The best measurement and control instrument. Although the instrument serves the process, unscientific selection and installation cannot serve the process well, so the process should create necessary conditions for the instrument selection and installation. For example, liquid level measurement of various flammable, explosive, toxic and other dangerous media, strong acid and strong alkali in high temperature and high pressure airtight containers. While avoiding hot welding as much as possible, it is necessary to use an external level gauge. The external level gauge is based on the time domain echo principle of ultrasonic pulses. The ultrasonic sensor of the external level gauge sends out ultrasonic pulses. After passing through the bottom of the tank, the ultrasonic waves propagate in the liquid, and after reaching the interface between the liquid and the gas, they are reflected again. Back to the detector. The external liquid level gauge obtains the height of the liquid by calculating the time difference and the propagation speed of the ultrasonic wave in the liquid. This measurement method of the external level gauge truly realizes the non-invasive measurement of 'penetrating through the wall'. The measurement with the external level gauge does not require opening holes on the container, especially for high pressure, strong corrosion, and toxic and harmful conditions. Suitable for. The sonar sensor (probe) of Kaidi's external liquid level gauge is installed directly below (bottom) of the outer wall of the container to be tested, and it is not necessary to open a hole in the container to be tested. It is easy to install and can be installed online.

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