The structure of thermocouple in order to keep the thermocouple is reliable, steady work, the structure of its requirement is as follows:

1, the composition of the thermocouple two hot electrode welding must be strong;

2, two hot electrode should be well insulated between each other, in case of short circuit;

3, compensation conductor should be connected to the free cod of a thermocouple to be convenient and reliable;

4, protect casing thermal electrodes should be able to make sufficient isolation and harmful medium.