Example: Temperature setting is 240°. Furnace is measuring 245°C and the External sensor is measuring 220°C.
If you now want to solder without the External sensor you have to make a correction of -25°C measured at 245°C. This will result in the furnace sensor showing a realistic temperature on the board.
16. Activate and set a temperature correction of X °C. For your PCB, a difference in temperature registration will exist between the top sensor (furnace) and the external sensor measured at the maximum temperature in the curve. For use of the eC-reflow-mate without the external sensor for soldering this type of PCB, you can compensate this temperature difference by setting the difference value at a temperature (max). For example -25°C at 245°C measured.
17. The temperature correction is defined for top temperature X °C