Introduction:
The diameter of the coupling wire is specified as 0.5mm, and the allowable deviation is -0.015mm. The nominal chemical composition of the positive electrode (RP) is a platinum-rhodium alloy, which contains 13% rhodium, 87% platinum, and the negative electrode (RN) is pure platinum.
The use environment of R-type thermocouple:
Thermoelectric potential stability and good oxidation resistance at high temperatures, suitable for oxidizing and inert atmospheres. The overall performance of the R-type thermocouple is equivalent to that of the S-type thermocouple.
Advantages of R-type thermocouple:
1: R-type thermocouple has high accuracy in the thermocouple series,
2: R-type thermocouple has good stability in the thermocouple series,
3: The measuring temperature range is large
4: Long service life
Disadvantages of R-type thermocouple
1: The thermoelectric potential rate is small
2: Low sensitivity,
3: The higher the temperature, the lower the mechanical strength.
4: Environmental pollution is very large, pay attention to environmental protection.
5: Precious metal materials are expensive, so the one-time investment is relatively large.
Measuring temperature range of R-type thermocouple
1: The long-term maximum use temperature is 1300℃
2: The short-term maximum use temperature is 1600℃