Transform between the Mollier diagram and the psychrometric chart.The psychrometric chart is made with the PsycPro software available from Open the printable pdf file - Psychrometric Chart - Barometric Pressure 29.921 inches of Mercury.dry bulb temperature ranging 20 oF to 120 oF.barometric pressure 29.921 inches of Mercury.English (Imperial) units with wet bulb and dry bulb temperature and relative humidity.The psychrometric chart below is made for standard atmospheric conditions.