How to distinguish the thermocouple type

The commonly used thermocouple indexing, R, B, S, K, T, E, N.

1, the first sight from the thickness points: R, B, S, is a precious metal composition, fine wire diameter; K, T, E, N is ordinary metal, wire diameter thick.

2, followed by heating to measure the output thermoelectric potential 【 Data about 】 :

to coarse wire diameter, heated to 100 ℃, the thermoelectric potential of 4 K. 095mV； E thermoelectric potential is 6. 317mV； N the thermoelectric power of 2. 774mV； T of thermoelectric potential of 4. 277mV；

of fine wire diameter, heated to 1000 ℃ when the thermoelectric potential for 4 B. 833 mv; R of thermoelectric potential for 13. Thermoelectric potential for 9 of 316 mv, S. 586mV。

【 If you cannot determine the thickness of wire diameter, thermoelectric potential direct heating measurement, first heated to 100 ℃, and then heated to 1000 ℃, E, T can't afford to 1000 ℃)