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Guidelines for selecting the thermocouple temperature sensor selection
2021-06-11

热电偶温度传感器选用指南 上海维连电子

Guidelines for selecting the thermocouple temperature sensor selection


The following table shows the sensors of different types of thermocouples.

Thermocouple type temperature range Remarks
B Zero -degree Celsius to 1700 degrees (32 to 3092 degrees) These thermocouple temperature sensors are suitable for temperatures up to 1800 ° C. The thermocouple generates the same output at 0 ° C and 42 ° C, and the use temperature is limited to below 50 ° C. Those who are susceptible to pollution; those who need to be protected. No need to insert metal tube.
C Zero -degree Celsius to 2320 degrees (32 to 4208 degrees) Tungsten 5% 对 is relative to 26% of the temperature sensor of 26% of the tungsten 26%, which is suitable for measurement from 0 ° C to 2320 ° C. This thermocouple temperature sensor is very suitable for vacuum furnaces at high temperatures. It must not be used in aerobic environments with a temperature of more than 260 degrees Celsius.
E  Celsius-200 to 900 degrees (-328 to 1652 degrees) And Kang copper thermocouple temperature sensor can be used to gently oxidize or restore the atmosphere. It has the highest type of thermocouple type of the highest electric momentum output. It is not corroded at low temperature
J Zero degrees Celsius to 750 degrees (32 to 1382 degrees)  Iron and Kang Copper are especially suitable to reduce atmosphere. When the temperature exceeds 538 ° C (1000 ° F), the iron legs often oxidize quickly. At a higher temperature, it is recommended to install large -scale wires in the protective pipe
K  Celsius-200 to 1250 degrees (-328 to 2282 degrees) It is especially suitable for oxidation atmosphere. This is a reliable and accurate thermocouple temperature sensor and the most commonly used line calibration type.
N Celsius-270 to 1300 degrees (-450 to 2372 degrees) Due to its stability and anti -high temperature oxidation capacity, it is suitable for high temperature (more than 1200 ° C) environment. It is designed as an improved K -type, which is becoming more and more popular.
R Zero -degree Celsius to 1450 degrees (32 to 2642 degrees) Platinum 13% and platinum. The use temperature is as high as 1450 ° C. It is recommended to use oxidation atmosphere. It is easy to be contaminated and needs to be protected.
s Zero -degree Celsius to 1450 degrees (32 to 2642 degrees) Platinum 10% and platinum. Similar to the R -shaped, the use temperature of the S -shaped thermocouple temperature sensor can reach 1450 ° C. In particular, the S type is used as a correction standard for the gold melting point (1064.43 ° C). Laboratory standards, good reproducibility. Those who are susceptible to pollution; those who need to be protected.
i Celsius-200 to 350 degrees (-328 to 662 degrees) Copper and Kang Tong. Can be used for mild oxidation or restoration atmosphere. It is especially suitable for low temperature and low temperature. Have excellent oxidation and reducing resistance within the temperature range
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