Thanks for your answer.

With the cold junction record I need the make any compensation with the value from channels 1-3 or they readings that I am receiving from them are ok?

Hello I am a beginner with macros and also with the pico tc-08. I am using this instrument to measure the temperature and I need that the data is recorded. I modified the default macro to copy paste every value and record it. The problem is that I am not sure if the settings are good for the thermoc...