In this page you can find an explanation of the calibration procedure followed to calibrate the 12 thermocouples available for task BE "Building Envelope" of the coursework for 4M19 Advanced Building Physics teaching module. Moreover you can find an Excel file with all the calibration calculations, and in red bold text the calibration coefficients and relative error for each thermocouple.
Note that the calibration coefficients are the same ones you can find in the DT80-DT85 example program.