Thermocouple _ instrument in use need to pay attention to those issues

Thermocouple can bend, high pressure resistance, heat fast response time and strong and durable many advantages, such as it and industrial prefabricated thermocouple, as measure temperature sensor, through the compensating conductor and display meter, recording meter and electronic regulator, at the same time, also can be used as a prefabricated thermocouple temperature sensing element. 1, the thermocouple with flexible performance, thermocouple in addition to the head, can make the direction of bending, so it is suitable for the structure is relatively complex, DE temperature of small equipment. 2, thermocouple has good resistance to vibration and shock resistance. Thus it live longer than ordinary thermocouple. 3, thermocouple long using life, thermocouple in resistance due to twisting the cap by iron power insulation materials and metal casing maintenance, thermocouple wire is not easy to be corroded by harmful medium. 4, flameproof thermocouple with special structure of the junction box, its shell internal explosive mixed gas by affected by sparks or electric arc explosion limits in the junction box. 5, the production site won't explode. Flameproof thermocouple can be used in the Bla B3c level zone with explosion danger place temperature measurement. Anticorrosion thermocouple 5) The anti-corrosion thermocouple using PTFE anti-corrosion material. 6, as a whole case or two casing, also can be directly on the protecting tube for the anti-corrosion material handling, spraying, sintering and casing sealed three forms. In July and is applicable to measure in alkali corrosive medium, heat resistance, 250 ℃, fixed installation situation also can use the same PTFE material fixed screw thread. 8, according to the measured temperature range and measurement of object, choosing the proper type, specification and maintenance of thermocouple tube. Thermocouple it can directly measure all kinds of production process from 0 ℃ ~ 800 ℃ in the scope of liquid, steam and gas medium, as well as the surface temperature of the solid. Compared with prefabricated thermocouple, thermocouple is flexible, high pressure resistance, thermal response time is short and strong and durable, etc. Are two different components of conductor on both ends of the welding and form a loop, directly measuring WenDuan call work side, the terminal end is called the cold end, also known as the reference. When work end and reference end there is temperature difference, will produce thermal current in the circuit, digital display table is connected, the instrument will indicate the thermocouple thermoelectric emf generated by the corresponding temperature value. The thermocouple thermoelectric emfs growth over the course of measuring the temperature, the size of the thermoelectric emfs and thermocouple temperature difference on both ends of the conductor material and, only has nothing to do with hot electrode length and diameter. The structure principle of thermocouple is made up of a conductor, high insulation magnesium oxide, coat 1 cr18ni9ti stainless steel protecting tube, after many integrated control. Thermocouple products are mainly composed of terminal block, terminal and thermocouple basic structure, and with various mounting device.