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Corrosive liquids such as sulphuric acid http://www.cheapairmaxshoesclearance.com/ , hydrochloric acid and nitric acid are common in chemical enterprises. Non-direct contact level meter is the first choice in measuring liquid level. Ultrasonic level meter is one of the commonly used level meters in zui.

Ultrasonic level meter is a non-contact measurement, suitable for most measuring media. As a new type of liquid level measuring instrument, ultrasonic level meter has a very wide range of applications in industrial process measurement. It has the characteristics of reliable operation, easy installation, long use cycle, maintenance-free cheap nike vapormax , and has a relative price advantage. Because the ultrasonic level meter does not contact with the measured medium when measuring the level, and it is a fully sealed anticorrosive structure, the effect is very good for measuring the level of viscous, corrosive, turbid and other liquids. This paper makes some analysis on matters needing attention in measuring the level of corrosive medium by ultrasonic level meter, hoping to be helpful for manufacturers to choose suitable level meter.


Selection of ultrasonic level meter should first consider the medium temperature cheap air max 2019 , ultrasonic level meter at room temperature, the temperature around the probe to - 20 ~ 80 degrees centigrade, high temperature probe to - 20 ~ 100 degrees centigrade.


Secondly is the choice of sensors, ultrasonic level meter in the measurement of corrosive media, the general manufacturers will choose corrosion-resistant probe, considering environmental factors cheap air max 270 , this occasion to choose a physical seal type of corrosion-resistant probe.


Finally, the selection of the main part, as the main part, requires good sealing, as long as there is a bit of media leakage, it is possible to enter the ultrasonic level meter from the shell or inlet cheap air max 95 , resulting in internal circuit board corrosion. For corrosive gases in the environment, separate ultrasonic level meter can be used to protect the service life of the main engine.


The ultrasonic level meter can not detect the reflected echo simultaneously when transmitting ultrasonic pulse. Because the ultrasonic pulse emitted has a certain time width, and the sensor still has aftershock after transmitting the ultrasonic wave, during which the reflected echo can not be detected, so a short distance from the probe surface down can not be normal detection, this distance is called blind area. If the high level of Zui is detected into the blind area cheap air max 97 , the instrument will not be correctly detected, and there will be errors. If necessary, the level meter can be installed high. In the selection of Engineering design, Zui should pay attention to the problem of selecting a good installation location, design the appropriate installation interface. Installation position should be as smooth as possible to choose a smooth liquid level, level position cheap air max 90 , while away from the escalator, inlet and outlet, as far as possible with the container wall to maintain a long distance from the agitator.

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