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Question:

Instrumentation questions? (Thermocouples)?

1)For proper installation, can a Thermocouple be installed and connected with copper wire?Explain your answer2) Thermocouple measuring devices need to compensate for ambient temperature because:A) mv tables are based on zero deg C and the measurement junction may changeB) mv tables are based on zero deg C and the reference junction may change C) mv tables are based on ambient temp and the measurement junction may changeD) mv tables are based on ambient temp and the reference junction may change Thanks alot and can someone only with knowledge of instrumentation answer these questions.

Answer:

I've seen copper wire used; compensation is usualy prformed at the meters location, so it works out; and too the wire is in the same enviroment as the couple. You could look the second one up on a data-sheet; but I'd say C is correct.

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