1.)how to calibration to formed walk in type stability chamber
2.)How to calculate HPLC area
sorry to get to this late-
But you have to have a program installed on your laptop to calibrate your thermocouples and the chambers (Dickson for esxample) and monitor the change of the temperature fluctucations over the given period of time, get the graphs and record the possible changes. Hope that helps
With regards to your second question
Every possible software will calculate the peak area on your computer
For more information you can read the Quantitative analyis of any Practical Liquid Chromatography guide or a book and there will be abundant information and examples about this topic.