Which electromagnetic flowmeter is better

Industrial sewage measurement is inseparable from electromagnetic flowmeters, but the electromagnetic flowmeter market is mixed. How to distinguish which electromagnetic flowmeter is good and how to choose the appropriate electromagnetic flowmeter are very important issues. The following editor will share with you how to distinguish which electromagnetic flowmeter is better, and the key points that need to be paid attention to when selecting electromagnetic flowmeters.　　 If you want to determine which electromagnetic flowmeter is better, you must first understand the application principle of electromagnetic flowmeter. The following editor briefly introduces the principle of electromagnetic flowmeter. The electromagnetic flowmeter first creates a stable magnetic field around the pipeline. When water and other conductive media flow through the pipeline, it will cut the magnetic lines of force and generate an electromotive force. The signal is obtained through the pre-placed electrode, and the standard signal output is formed after the converter is processed. Communication and display And other functions.　　 After understanding the principle of electromagnetic flowmeter, how to choose a suitable electromagnetic flowmeter? When choosing an electromagnetic flowmeter, you need to pay attention to the following points: 　　1, determine the caliber. (In order to facilitate the installation and the connection of the process pipeline) 　　2, determine the flow rate. According to the principle of conductor cutting magnetic lines, the faster the conductor cutting speed, the stronger the signal. To ensure the measurement accuracy, we generally select the flow rate not less than 0.3M/S (generally economic flow rate is 1-3M/S), and the correct selection The type can also save investment for users.　　 3. Determine the working pressure. Understanding the pressure of the process pipeline is necessary for the stable operation and connection of the flowmeter.　　 4. Determine the conductivity of the medium. According to the working principle of electromagnetic flowmeter, the medium must be a conductor, so the conductivity is not less than 5US/CM. Too low conductivity will cause the electromagnetic flowmeter to fail to work.　　 5. Determine the lining material. According to the temperature, acidity, alkalinity and corrosivity of the medium, choose the correct lining material.　　 6. Determine the electrode material. Both the electrode and the inner lining are in contact with the medium, so choose the correct electrode material according to the acid-base and corrosiveness of the medium.　　7. Determine the protection level. Choose the correct protection level IP65 and IP68 according to the location of the site installation. Once a user installed the pipe gallery on the ground level for beautiful appearance, and encountered heavy rain, the whole flowmeter was immersed in water and suffered heavy losses. At this time, if you choose the IP68 protection level Then it's safe and sound.　　 8. Determine the working voltage. According to the power supply on site, select the correct working voltage.　　 9. Confirm the output signal. According to the requirements of the user system, select the correct output signal, communication method, etc. That is, to choose the electromagnetic electromagnetic meter correctly, we must understand the name of the medium, temperature, conductivity, working pressure, minimum flow, normal flow, maximum flow, diameter of the process pipe, protection level, installation method, working voltage, output signal Wait. After understanding the basic knowledge of electromagnetic flowmeters, how do we judge which electromagnetic flowmeter is good is particularly simple. A qualified electromagnetic flowmeter manufacturer will inevitably consider the above-mentioned parameter requirements and customers when choosing electromagnetic flowmeters for customers. Whether the site matches, whether the after-sales problems are dealt with in a timely manner, such as the number of offline offices, etc. I believe that seeing this, everyone should have already understood how to choose electromagnetic flowmeter manufacturers and selection.
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