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What is the performance of the s type thermocouple _ instrument

by:JVTIA     2020-10-28
S type thermocouple is a kind of common temperature measurement instrument, also is a kind of thermocouple. S type thermocouple for the precious metal thermocouple is mainly used for high temperature measurement, the application range is very wide. S type thermocouple its performance when in use and users must know. S type thermocouple performance: the temperature is 1300 ℃, the long-term use of thermocouple short-term use temperature is 1600 ℃. S type thermocouple in the thermocouple series has high accuracy, good stability, test your area wide, long service life, etc. Its physical and chemical performance is good, the thermoelectric potential stability and oxidation resistance at high temperature performance is good, suitable for oxidizing and inert atmosphere. Because of s type thermocouple has excellent comprehensive performance, in line with the use of s type thermocouple temperature scale, for a long time as a scale interpolation instruments, 'its - Although 90 'provisions will not be as within the scale of the instrument, but temperature advisory committee ( 有条件现金转移支付) S type thermocouple can still be used for approximate to realize international temperature scale. S type thermocouple deficiency is thermoelectric potential, thermoelectric potential rate is small, low sensitive to read, mechanical strength under high temperature to drop, is sensitive to pollution, precious metal materials is expensive, and one-time investment is larger. S type thermocouple is also called single platinum-rhodium thermocouple, its index number is s degree, mainly measuring the temperature of 0 ~ 1600 ℃ medium, is one of the precious metal thermocouple category. Normal use in place of coking plant, steel plant and other high temperature use. S type thermocouple under normal use for a long time at about 800 ~ 1300 ℃ temperature measurement of high precision, and in 800 ℃ temperature measurement accuracy is not high, but the long-term use of temperature above 1300 ℃ can easily damage the thermocouple, so select the correct index number of thermocouple temperature measurement accuracy is the important factor.
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