Why the leakage resistance, heat integration explosion-proof? Will there be any way to prevent the leakage? Release date: 2019 04 - 23 reading

Integration of explosion-proof heat resistance refers to the heat resistance of waterproof or explosion-proof junction box into the amplification analog module ( Nickname temperature transmitter) , form integration connected to the sensor, the output standard 4 - 20 ma current signal or 0 - can also be output Or 1-5 v 5 v voltage signal. Usually and display meter, recording meter, electronic computer, used in direct measurement of various 0 degrees - in the process of production Within the scope of 500 degrees liquid, steam and gas medium, as well as solid surface temperature. Integration of explosion-proof heat resistance leakage reason probably is divided into the following several aspects: 1, electric furnace refractory bricks under high temperature insulation fault, equipped with wire furnace furnace wall inserted with metal thermal resistance is easy to make contact with heat resistance furnace silk, firebrick at room temperature is a good insulating material, but as temperatures rise, insulation performance will decline significantly. 2, furnace wire contact with thermocouple, heat resistance protection tube is alumina ceramic tube, accidentally silk made separation insulation porcelain tube wear, under the high temperature insulation performance will reduce. Prevent the integration of explosion-proof heat leakage resistance of the most effective approach: 1, users do not use thermal resistance contact with fire brick, and integration of explosion-proof hot cathode grounding resistance, thermal resistance on the leakage signal. 2, installation of filter device in thermal resistance output or on the thermal resistance tube and jacket heat-resistant steel pipe or carborundum tube, and make it grounded. Instrument in huashi remind everybody, installed in the use of a variety of thermal resistance, thermocouple, you have to use a installation instructions to guide for installation to prevent danger happening.