What is the difference between compensation and extension cable.
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Answer Posted / farhad rabiee roudsari
When connecting thermocouples to instruments, it is
essential that a cable is used, which has the same emf
output as the thermocouple; otherwise spurious emf is
generated at these junctions. The best solution is to use
the same material as the thermocouple (extension cable). A
cheaper alternative is to use compensating cables, the
alloys of which are different from those of the thermocouple
but have the same output over a limited temperature range.
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