Refer to the drawing of a simple thermocouple circuit (see figure below).
A thermocouple temperature indication is initially 390°F.
A small steam leak raises reference (cold) junction temperature by 20°F, while the measuring junction temperature remains constant.
Without temperature compensation for the reference junction, the new temperature indication will be…
A. 370°F.
B. 390°F.
C. 400°F.
D. 410°F.
Show Answer
Answer: A
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