To identify the thermocouple damage by color1

Thermocouple is a kind of common measuring instruments, and widely applied in multiple industries. Thermocouple can appear in the process of use are of a certain fault and wear, the thermocouple how damage is how do we check? How can we know the thermocouple has been damaged?

the following engineering teach everybody a by the method of judging color thermocouple damage.

to observe the damage of the thermocouple by colors

1, mild: gray, with a small amount of luster, with white foam

2, moderate: ivory, lacklustre, with a yellow foam

3, more severe: in yellow, hardening, green bubble

4, severe: yellow, brittle, have pits, hardening, into worse slag.

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure sensor and digital temperature sensor