For conventional level transmitters, the medium temperature measured by general level transmitters is between -40~60°C, which is far from enough for some high-temperature medium environments. The high-temperature liquid level transmitter uses a gas impulse method to measure high temperatures, corrosive liquids, sewage, etc. The high-temperature liquid level transmitter is composed of stainless steel gas collector, stainless steel capillary and junction box, the sensor part and the signal processing circuit are inside the junction box, and the gas of the gas collector cylinder put into the liquid is in contact with the medium, and the pressure is transmitted to the transmitter through the air guide pipe, which avoids the direct contact between the transmitter and the measured medium, and effectively solves the problem of high-temperature liquid level measurement. The working medium temperature of the high-temperature liquid level transmitter is -40~180°C, and the measuring range is 0~1~10mH2O. The output signal of the high-temperature liquid level transmitter can be selected as an analog signal of current type, voltage type or RS485 digital signal. The power supply voltage is 12~36V DC, if it is an intrinsically safe or dust intrinsically safe high temperature level transmitter, the power supply voltage should be a standard 24V DC. The high-temperature level transmitter uses a diffusion silicon pressure-sensitive element and diaphragm isolation technology. The high-temperature level transmitter is connected by stainless steel capillary, which can be directly put into use on site, and the installation is simple and convenient. The high-temperature liquid level transmitter is also designed with anti-clogging, discharging structure and high temperature resistance to ensure its long-term stable and good working condition. The installation method of the high-temperature liquid level transmitter can be bracket mounting, flange mounting, and threaded mounting. It should be noted that the high-temperature level transmitter needs to be installed vertically, so as to avoid impurities such as sediment from burying or clogging the probe part of the high-temperature level transmitter. The capillary of the high-temperature level transmitter will play the role of imparting pressure, and should be installed vertically as far as possible to avoid sharp angle bending to prevent the capillary from being blocked or broken.

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