Level measurement plays a very important role in automated production, ensuring the normal and efficient operation of production. However, many users are not clear about what is level, level measurement instruments and the specific role of level measurement. In order to help users to have a deeper understanding of molten metal level measurement, this article introduces the concepts and main roles of level measurement as follows.

First. Related concepts of level measurement

　　When it comes to level measurement device, we need to know several related concepts. For example, we often talk about the level, which is actually the position of the phase interface of two different phases of objects (gas, liquid, solid). The level measurement instrument is the instrument to measure, alarm and control the level.

　　In the level measurement types, the common measurement objects are liquid, powder, granule, block and their mixture. The so-called powder is the solid with particle size below 100μm, granule is the solid with particle size about 100μm-10mm, and lump is the solid with particle size above 10mm.

　　In the process industry, the phase interface of the object is mainly as follows.

　　1, the phase interface of gas and liquid, which is often referred to as the liquid surface).

　　2, the phase interface of gas and powdered solid materials, which is often referred to as the material surface).

　　3, not mixed with the liquid phase interface, the more common are: oil - water interface.

　　4, the phase interface of liquid and powdered solid materials, more common, such as water and sediment in the water interface.

　　For the powder and other less mobile objects, the material surface and the horizontal surface is usually a certain rest angle, and the rest angle size depends on the surface characteristics of the stacked material. For liquid, slurry and other liquid objects, the surface is generally horizontal, usually stored in a certain shape such as tanks, towers, silos, underground tanks or pools of containers.

Second, the main role of level measurement

　　In industrial production, the reason why level measurement is necessary is that it has the following three important roles.

　　1、Through vibrating fork level measurement, the height of the stored material in the container can be correctly measured and its location can be understood.

　　2、Use the level measurement instrument to monitor and control the level in the container, so that it can be kept at a certain height or within a certain height range required by the process; or to limit alarm or control their upper or lower limit position (to prevent overflow, emptying, quantitative feeding, etc.).

　　3、By level measurement and adjusting the balance of inflow and outflow materials in the container according to the level situation, in order to maintain the stable operation of production and maximize production.

The above is the introduction of "the concept and purpose of magnetic level measurement", if you want to know more about level switch (level switch, liquid level switch), level meter (level meter, liquid level meter) and other level measurement instrumentation knowledge, welcome to pay attention to and contact us!