The relative humidity of the drying air was determined using calibrated humidity transmitter with accuracy 2.95%.
A differential pressure transmitter with a calibrated accuracy 2% of the selected range of 25 Pa was used to measure
dynamic pressure and hence air drying velocity. The weight was quantified using four load cells (total nominal load 10 kg)
with accuracy 0.05% and an analog transmitter with accuracy 0.03%. A custom application in Labviews was used to
operate and contro lthe LTCD device.