Radar level meter note

Radar level meter high temperature and high pressure, corrosion resistance, such as mixing complex working conditions. Can be used as asphalt, acid and alkali tanks, reaction kettle mainly in chemical, petrochemical and other industries; The blast furnace burden material level, the high temperature melt metal liquid level. This kind of working condition of the material being tested at higher temperature, due to the thermal radiation, material level meter installed temperature is very high, so usually adopt with curved extension tube beep antenna, electronic parts away from thermal radiation area, stainless steel horn antenna and the higher temperature. The propagation and reflection and radar is not affected by temperature. Typical applications have a blast furnace burden material level measurement, molten steel level measurement, melted aluminum liquid level measurement, etc. Large storage tank liquid level precision measurement. Crude oil, product oil, liquefied petroleum gas, chemical liquid level measurement, can this Ann or explosion. The process level instrument measuring accuracy can reach & plusmn; 3 mm, level measurement instrument can reach & plusmn; 1mm。 In recent years, radar level meter will gradually become the main instrument in the field. Magnetic flap e6Y | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

in the selection, radar thermometer should give full consideration to the specific situation of the material being tested. According to the process of pressure and temperature to choose corresponding connecting flange: according to the range and medium dielectric constant, shaking or vortex and bubble, etc. , determine the antenna size, the larger the range, the lower the dielectric constant, the antenna size should be bigger; Such as measurement occasions for the corrosive, should choose the surface coated PTFE rod antenna measurement system; Such as measurement occasions for high temperature ( More than 200 ℃) , high pressure, should choose band antenna extension tube of high temperature and high pressure; If medium easy condensation can be used with shielding tube rod antenna system; For food, health industry, and health products to choose from. E6Y magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

in the center of the transmitting antenna be vertical axis and the material surface under test, well at least ensure the tank wall spacing of 30 cm. Antenna syndromes beep front end should be stretched into the container inside, in order to reduce due to take over and equipment installed between meet the emission energy loss caused by the welding. Avoid installed in the center of the trough, because that would make false echo enhancement. Do not install in the top of the feeding mouth, mainly to prevent loading amplitude than the measured liquid level may be produced when the shooting of effective false echo echo is much bigger. When measuring with a mix of container liquid level, should avoid as far as possible when the blender mixing vortex formed by the district, to as much as possible to eliminate irregular scattering attenuation caused by the liquid in the face of the microwave signal. When tank manufacturing material dielectric constant is less than 7, such as fiber reinforced glass, such as polyethylene, polypropylene, or lead-free glass, Ken wall thickness is moderate, can be installed on the outside of the tank. If medium reservoir of spherical container, should be guided wave tube or by-pass pipe installation, so that we can eliminate multiple echo interference brought by the shape of container. Improve the signal-to-noise ratio. In measuring dielectric constant small medium ( Such as liquefied petroleum gas, gasoline, diesel oil, transformer oil, etc. ) Because these medium can produce relatively large of microwave attenuation, to improve the reflection energy to ensure the accuracy of measurement, also should be installed with guided wave tube. Magnetic flap e6Y | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

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