Magnetic flap level meter is a common liquid level measuring instrument based on the principle of buoyancy and magnetic coupling principle. It has a wide range of applications in industrial production. However, due to the complexity of the actual application conditions, a variety of models of different functions of the magnetic flap level gauge to adapt to it. High temperature and high pressure environment is a more severe working conditions, ordinary magnetic flap level meter is difficult to cope with, then the high temperature and high pressure magnetic flap level meter should be used for liquid level measurement.

　　High temperature and high pressure magnetic flap level meter in the display mode, and ordinary magnetic flap level meter has a great difference. The upper white part is changed to a liquid-free form, and the lower part is red indication, so that even in the night observation is also intuitive and eye-catching. The entire high-temperature and high-pressure magnetic mflap display panel is isolated from the measured medium, and the material selected for direct contact with the medium is corrosion-resistant, high-temperature and high-pressure resistant, which makes the high-temperature and high-pressure magnetic flap level meter in the use of the process more safe and reliable than ordinary magnetic flap level meter.

Despite the obvious advantages of high-temperature and high-pressure magnetic flap level meter, but in the process of use often encounter magnetic float demagnetization and other phenomena. So, what are the factors that lead to the demagnetization of the high-temperature and high-pressure magnetic flap level meter? And how to solve it?

　　A, the common factors affecting demagnetization

　　The common factors affecting the magnetic float demagnetization failure of the high-temperature and high-pressure magnetic level gauge, usually have the following points.

　　1, the external temperature is too high, higher than the Curie temperature of the hard magnetic material.

　　2, hard magnetic materials used for too long, resulting in the magnetic float magnetic weakening.

　　3、Hydrogen embrittlement of hard magnetic material, etc.

Second, the solution to avoid demagnetization

　　According to the common reasons that lead to demagnetization of magnetic float type level gauge, to avoid demagnetization, generally speaking, it should be solved from the design, production and use aspects.

　　1, from the design point of view.

　　High-temperature and high-pressure magnetic flap level meter, like other magnetic flap level meters, also works on the principle of magnetic coupling. In high-temperature and high-pressure occasions, taking into account the impact of temperature factors on the material, the choice of suitable hard magnetic material is particularly important. Usually use the Curie temperature than the use of at least twenty percent higher than the temperature of the hard magnetic material.

　　2、From the production point of view.

　　Processing of magnetic floats requires attention to.

　　(1) When processing and producing magnetic floats, the temperature of the magnetic material should not be higher than the Curie temperature, which requires the staff to do a good job in the welding process to reduce the temperature.

　　2) Inert gas can be filled inside the magnetic float.

　　3、From the use aspect.

　　(1) users in the purchase of instruments, to confirm the temperature of the measured medium in advance, so that the selection to determine whether the selected high temperature and high pressure magnetic level indicator can withstand the temperature to be higher than the actual use of temperature.

　　(2) the selection to determine the temperature is only a basis, in daily use still need to check whether the use of normal, and record the actual temperature to ensure that the actual use of temperature will not exceed the magnetic float Curie temperature, to prevent the purchase of the actual use of temperature errors, and lead to damage to the instrument.

Due to the dangerous working conditions at high temperature and pressure, the requirements for the instrument used are high, requiring users to choose products of excellent quality when purchasing. kaidi KD UZC series magnetic flap level meter absorbs and draws on the basis of similar excellent products, relying on independent research and development of a series of innovative design, production process and testing standards, by focusing on process details, strict control of the production process and quality testing, so that The reliability of the product is extremely high, providing a reliable guarantee for the user's safe and stable production.