Effect factors of Thermocouple stability and solutions

There are 5 possibilities if the thermocouple doesn’t work stable:

1. Bad contact for terminal and thermal electrode:

Solution: clean the terminal and thermal electrode retighten.

2. Insulation fails which may bring intermittent short circuit and ground connection.

Solution: find the fault point, repair the insulation.

3. Intermittence of the thermode or measuring therminal.

Solution: If the break point is on the measuring therminal, the break point should be welded ,or change the thermocouple.

4. insufficient installation or external vibration.

Solution: Anti-detonation measures to install the thermocouple firmly.

5. External disturbance:

Solution: Examine the interference source

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