Thermocouples for temperature measurement in power stations
- cpfl:
Description
Our company is a manufacturer of thermometers. With the continuous development of China's power industry, we are in urgent need of various thermocouples and resistors suitable for power stations to replace imports. The company in order to catch up with the international advanced level, but also for the country save foreign exchange, has introduced a special manufacturing technology and equipment from abroad, and on the basis of original products, widely listen to the views of the design institute and power users, at the same time refer to the United States EBASCO specification, to redesign of products, new varieties, the whole series of varieties, specifications fully meet domestic or imported 300000, 600000 mw generating units and other units supporting domestic needs, and meet the market with excellent quality.
range
category | Code name | Degree, | The temperature range is ℃ | Precision grade | Deviation delta t is allowed |
Nickel-chromium - nickel-silicon | WRNT | K. | 0 ~ 800 | Ⅱ | Plus or minus 2.5 ℃ or 0.75% t |
Nickel-chromium - copper-nickel | WRET | E | 0 ~ 600 | Ⅱ | Plus or minus 2.5 ℃ or 0.75% t |
Copper and copper and nickel | WRCT | T | - 40 ~ 350 | Ⅱ | T + / - 1 ℃ or 0.75% |
Platinum resistance | WZPT | Pt100 | - 200 ~ 500 | Class B | Plus or minus (0.30 + 0.005 | t |) |
Copper resistance | WZCT | Cu50 | - 50 ~ 100 | Ⅱ | Plus or minus (0.30 + 6.0 x 10-3 t) |
Note: "t" refers to the measured temperature of the temperature sensing element, while for platinum resistance and copper resistance refers to the measured temperature of the temperature sensing element. ● nominal pressure refers to the normal temperature, the protection tube can withstand the static external pressure without rupture, the test pressure is generally 1.5 times of the pressure. In fact, the allowable working pressure is not only related to the material, diameter, wall thickness of the protective tube, but also related to its structure, installation method, placement length of the measured medium velocity, type. The measured current through the platinum resistance does not exceed 5mA.