How to add calibration offsets programmatically for each sensor?

First, note that only Dracal sensors equipped with the calibratability option (-CAL option) support user adjustment. For example, a USB-PTH200-CAL is calibratable, while a USB-PTH200 is not.

Although calibratable Dracal sensors can be easily adjusted via the DracalView graphical interface, it is possible to calibrate Dracal sensors in USB mode by programming using the dracal-usb-cal command line tool. To learn how to use this tool, read this guide.