Split radar level gauge

At present, the domestic industry is developing rapidly, and some instruments and meters are widely used in many industrial places. Because of the continuous level measurement of liquid, particle and slurry, the radar level gauge is not affected by medium changes, temperature changes, inert gases and steam, dust, The influence of foam is more used in some places where the working conditions are more complicated or where the hygiene requirements are relatively high. Many friends want to know whether there is a split type radar level meter because of its convenient use. What I want to tell you is that there is no such product as a split type radar level meter, so you must do it when you buy I have a better understanding of radar level gauges. At present, there are many manufacturers selling radar level gauges on the market. They fabricate false news to cater to everyone’s choice. Then what is a radar level gauge? Now I will talk about it for you. . Principle: The radar level gauge is a radar level gauge based on the principle of time domain reflection (TDR). The electromagnetic pulse of the radar level gauge propagates along the steel cable or probe at the speed of light. When it encounters the surface of the measured medium, the radar Part of the pulse of the level gauge is reflected to form an echo and returns to the pulse emitting device along the same path. The distance between the emitting device and the surface of the measured medium is proportional to the propagation time of the pulse between them, and the liquid level height is calculated.　　Application: The radar level gauge is suitable for acid and alkali storage tanks, slurry storage tanks, solid particles, and small oil storage tanks. All kinds of conductive, non-conductive and corrosive media. Such as coal silos, ash silos, oil tanks, acid tanks and other application problems: the radar level gauge used in some working conditions has some problems due to the improper sensor installation position and conditions. Propose solutions to the problem for your reference. 1. The solution to the problem of scarring and frequent failure of the probe. The first solution is to increase the installation position of the probe, but sometimes the installation conditions are limited. If it cannot be improved, the measured value of the material level should be interlocked with the pump in the tank. The way to solve this problem: reduce the maximum material level setting value by about 0.5m, when the material level reaches the maximum value, you can stop the feed pump or open the discharge pump. 2. Radar level gauge The corresponding improvement method of the radar level gauge is flooded The corresponding improvement method of the radar level gauge is flooded, the solution to this problem is to change the radar level gauge to the still-pipe type measurement . The still-pipe type radar level gauge is still installed at the original opening. The still-pipe is about 0.2m higher than the exhaust pipe. In this way, even if there is a bad working condition where the slurry overflows from the exhaust pipe, the material will not be damaged. The antenna of the position gauge is submerged by the slurry, and the interference of the stirrer eddy current and a large amount of steam emerging from the probe are avoided, which reduces the damage to the probe. A very good measurement effect. Using still-pipe measurement method can improve meter measurement conditions and improve meter measurement performance, which has a high value for promotion and application.　　3. About the influence of foam on measurement: 　　Dry foam and wet foam can reflect radar waves back and have no effect on the measurement; neutral foam will absorb and diffuse the radar waves, which seriously affects the reflection of the echo or even no echo. When the surface of the medium is thick and thick foam, the measurement error is large or cannot be measured. Under this working condition, the radar level gauge has no advantage, which is the limitation of its application.　　4. Treatment of antenna scars: 　　The hanging material with a small dielectric constant has no effect on the measurement in the dry state, while the hanging material with a high dielectric constant has an effect on the measurement. It can be purged with compressed air (or flushed with clean water), and the cooled compressed air can reduce the temperature of flanges and electrical components. Acidic cleaning fluid can also be used to clean alkaline scars, but level measurement cannot be performed during cleaning. Through some of the principles and applications of radar level gauges that I have introduced for you above, I must have a clear understanding of radar level gauges. Another point is that radar level gauges have certain requirements for installation space. , Pay attention to the dielectric constant of the medium, and choose the appropriate model according to the dielectric constant, so as to avoid the situation that you can’t use it when you buy it. If you don’t say that all the money will be spent, it will delay the industrial process because of this, so the gain is not worth the loss. So everyone must understand their own working conditions when purchasing. If you have any questions about the split radar level gauge, you can consult Kaidi’s technical engineers, and Kaidi will provide professional selection guidance.
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