Application and working principle of armored thermocouple

1. The application of armored thermocouples is generally used in conjunction with display appearance, recording appearance, electronic calculation, etc. Directly measure the temperature of liquid, vapor and gas medium and solid surface in the range of 0°C to 1300°C where there are explosives such as hydrocarbons at the production site. 2. Features of armored thermocouple: Various explosion-proof methods, good explosion-proof performance; Compression spring temperature sensing element, good anti-vibration performance; Large temperature measurement scale; High mechanical strength, good pressure resistance; 3. Armored The working principle of the mounted thermocouple The armored thermocouple uses the gap explosion-proof principle, and designs the junction box and other components with sufficient strength, and seals all the parts that will generate sparks, arcs and dangerous temperatures in the junction box cavity. When blasting occurs, it can be extinguished and cooled through the gap of the joint surface, so that the flame and temperature after blasting cannot be transmitted to the outside of the cavity, and then explosion-proof is carried out. 4. Main technical parameters of armored thermocouples Commodity performance specifications: IEC584, EC1515, GB/T16839-1997, JB/T5518-91, GB3836 15°C, relative humidity not greater than 80%, test voltage is 500±50V (DC) Insulation resistance between electrode and outer casing>1000Ω.m When using thermocouple compensation wire, it is necessary to pay attention to the type matching, and the polarity cannot be connected. Wrong, the temperature of the compensation wire and the thermocouple connection end cannot exceed 100 ℃.

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