Ultrasonic Milk Level Gauge

In many industrial occasions, because the height of the storage tank and the speed of factory operations are fixed, once the fixed range is exceeded, it will cause waste of raw materials and even great trouble. Therefore, it is particularly important to control the liquid level of raw materials. There are many products for measuring liquid level on the market. The milk industry is a very special industry because it is directly eaten by the human body. Therefore, the safety of milk is very high. General level gauges need to be in direct contact with the medium, so If you use a general contact level gauge to measure the level of milk, it is easy to cause milk contamination. Isn’t there a safe level gauge that can measure the level of milk? 　　 It’s not just that milk has high requirements for level gauges, some In other special industrial occasions, it is also difficult to measure the liquid level with the general contact level gauge. Therefore, the ultrasonic milk level gauge was born. Since the ultrasonic level gauge does not directly contact the medium, it is easy to install, and therefore suffers a lot of problems. Welcome to industrial occasions. Then someone will ask, what is an ultrasonic level gauge? Let me introduce the principle and some performance characteristics of the ultrasonic level gauge to you. Principle: The working principle of the ultrasonic level meter is that the ultrasonic transducer (probe) sends out a high-frequency pulse sound wave when it encounters the surface of the measured level (material), is reflected, and the reflected echo is received by the transducer and converted into an electrical signal. The propagation time is proportional to the distance from the sound wave to the surface of the object. The relationship between the sound wave transmission distance S and the sound speed C and the sound transmission time T can be expressed by the formula: Su003dC×T/2. 　　 Performance characteristics: 1. Strong anti-interference . The upper and lower limit nodes and online output adjustment can be set arbitrarily, and with on-site display, analog quantity, switch quantity and RS485 output can be selected, and it is convenient to interface with related facilities. It adopts polypropylene waterproof casing. 2. The shell is small and strong, and has excellent chemical resistance. For inorganic compounds, no matter acid, alkali, salt solution, except for strong oxidizing materials, there is almost no destructive effect on it, and it has no destructive effect on almost all solvents at room temperature. It does not dissolve in the bottom, and can be used on media such as alkanes, hydrocarbons, alcohols, phenols, aldehydes, and ketones.　　3, light weight, no scaling, no pollution to the medium.　　 4. Non-toxic. It can be used for the installation of equipment in the pharmaceutical and food industries, and the maintenance is extremely convenient. The emergence of the ultrasonic level gauge is undoubtedly the gospel of the milk industry, because it does not need to directly contact the medium, so it is safe and convenient to use, but some people will say that since the ultrasonic level gauge does not need to directly contact the medium, does that mean Ultrasonic level gauge can be applied to all working conditions, it is not. Although the ultrasonic level gauge does not need to directly contact the medium, it avoids the corrosiveness of the medium. However, the ultrasonic level gauge also has limitations. For example, some foamy liquids/solids are surrounded by strong voltage, strong current, and strong Electromagnetic interference, strong winds and strong direct sunlight, strong vibrations and other harsh working conditions, ultrasonic level gauges cannot be measured, so in the process of use, in addition to understanding their own working conditions, this will avoid buying The trouble that the ultrasonic level gauge cannot be used. Another problem with ultrasonic level gauges is that they have blind spots. Therefore, you should pay attention to the installation and use of the ultrasonic level gauge. When determining the range of the ultrasonic level gauge, you must leave a margin of 50 cm. When installing, the transmitter probe must be It is about 50 cm higher than the maximum liquid level. Only in this way can the accurate monitoring of the liquid level be ensured and the safety of the ultrasonic liquid level gauge can be ensured.
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