The variety of industrial measuring equipment is complex. Among them, the thermocouple is an important instrument for measuring the temperature of liquids in industrial applications. It has high precision, simple and convenient, and flexible use. Classification of thermocouples 1. Assembling thermocouples Industrial thermal resistances are used as sensors to measure temperature, and are generally used in conjunction with display surfaces, recording surfaces and electronic regulators. It can directly measure the liquid, steam and gas medium and solid surface temperature in the range of -200℃~_420℃ in various production processes. According to national regulations, since 1995, our company has started to produce two types of assembled and uniformly designed thermal resistors: Ptl00 platinum thermal resistance that conforms to the IEC international standard graduation number and Cu50 copper thermal resistance that conforms to the professional standard graduation number. 2. Surface thermocouple WRNM series In many occasions, on-site activity measurement is required according to technical requirements. WRNM series surface thermocouples are new products designed according to the above technical requirements and are matched with WSK-101 and WSK-1310 series pocket temperature digital display surfaces It is widely used in textile, printing and dyeing, papermaking, plastics, rubber, aluminum liquid, construction and other industries. WRNM series surface thermocouples are divided into several different shapes, such as handle type, straight handle type, suction column type, right angle type, four-wheel type, etc., which can be selected according to the needs of different shapes of the measured object. The matching appearance is WSK type pocket temperature digital display instrument, which is light in appearance and easy to carry. It is especially suitable for processing sites such as field operations. Main performance index Graduation number: K Accuracy class: 1.5 Temperature measurement scale: -50～+1300 3. Simple thermocouple WR Simple thermocouple is a kind of small size, no junction box, and flexible extension wire , can be twisted freely, has the characteristics of small thermal response time, simple structure, low price, convenient use, etc. It is suitable for industrial temperature measurement such as analytical instruments. The graduation numbers generally include: K, E (EA-2)*, J, I, etc. 4. Armored thermocouples Armored thermocouples have many advantages such as flexibility, high pressure resistance, fast thermal response time, and durability. Like industrial fabricated thermocouples, as a sensor for measuring temperature, it is generally used in conjunction with display surfaces, recording surfaces and electronic regulators. At the same time, it can also be used as a temperature sensing element for fabricated thermocouples. It can directly measure the temperature of liquid, steam and gas medium and solid surface from 0℃ to 800℃ in various production processes. 5. Explosion-proof thermocouples In the chemical industry, petrochemical industry, natural gas and metallurgy and other production sites, there are often various flammable and explosive gases, steam, and the use of general thermocouples and thermal resistances can easily cause ambient gas explosions. For these reasons, it is necessary to use flameproof thermocouples and temperature sensors for thermal resistance. The products of flameproof thermocouples and thermal resistances are suitable for use in occasions with explosive gases in the temperature range of dllBT4 and dllCT5.
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