A temperature transmitter using a thermocouple has an output voltage of 10.5 mV. If the reference junction is at 25°C and the hot junction is at 125°C, what is the type of thermocouple being used?
A. J-type
B. K-type
C. T-type
D. E-type
Answer:B
A temperature transmitter using a thermocouple has an output voltage of 10.5 mV. If the reference junction is at 25°C and the hot junction is at 125°C, what is the type of thermocouple being used?
A. J-type B. K-type C. T-type D. E-type
Explanation: Using the standard thermocouple reference tables, we can determine the type of thermocouple based on the output voltage and the temperature difference between the hot and reference junctions. For a voltage of 10.5 mV and a temperature difference of 100°C, we can see that this corresponds to a K-type thermocouple.