How to calibrate Regula 7017D?

Regula 7017D has two cameras, so calibration process of it slightly differs from other devices.

1. Run Document Reader application, then press and hold Left Ctrl button and open menu File/Device/Calibrate…
   
2. After a dialogue window appeared, place Test-object Side 1 and put it with the arrows facing away from you and its white side downwards to the glass over camera №1 (next to the guide frame). Press OK button.
   
3. After the second dialogue window appeared, place Test-object Side 2 and put it with the arrows facing away from you and its chessboard side downwards to the glass over camera №1 (next to the guide frame). Press OK button.
   
4. After calibration of camera №1 system will continue calibration process for camera  №2.
5. After a dialogue window appeared, place Test-object Side 1 and put it with arrows to yourself and its white side downwards to the glass over camera №2 glass. Press OK button. 
6. After the second dialogue window appeared, place Test-object Side 2 and put it with arrows to yourself and its chessboard side downwards to the glass over camera №2 Press OK button.
7. Your device is calibrated and ready to operate.

 Here is video of calibration process: