A copper constantan thermocopule with
0oC reference junction temperature was found to have linear calibration between
0oC and
400oC as shown in figure.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1474441/original_II-LJ_3.png)
The temperature of the hot junciton
(inoC) if the indicated emf is
10 mV with cold juction temperature of
10oC is
- 200