Thermocouple compensation issue
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To determine whether the temperature measured by a thermocouple is accurate, the measured potential value should be subtracted from the potential value at the cold end; the temperature obtained from a potential table is then the actual temperature. Judging the right or wrong question, the answer is said to be correct. I’m not sure; shouldn’t it be added?
I also think it should be added; I’m checking the table.
It needs to be added. And it needs to be measured on the DCS side.
It seems the person who created the questions even copied the text incorrectly.
1. The dial indicator is the potential output at the hot end relative to the cold end, with the cold end at 0°C. 2. When the cold end is away from 0°C, (the potential of the cold end relative to 0°C + the thermoelectric potential) = the potential of the hot end relative to 0°C; the correct temperature value can be obtained by referring to a table for this potential.
3. Hello, old leader. . . I’m overjoyed to see you. . .