Omega ISA- BUS MULTI-FUNCTIONAL BOARD OME-A822PG Instrukcja Użytkownika Pobierz pdf (Strona 45)

4.3 A/D Calibration

1. Run the A82XDIAG.EXE

2. Press “Right Arrow Key” to select “CALIBRATION”

3. Press the “Down Arrow Key” to select “C. A/D REFERENCE” item.

4. Press the “Enter Key”

5. Input a stable 4.9988V to A/D channel 0, pin 1 of CN3

6. Adjust VR2 until the A/D data shown on the screen is between 4094 to 4095

7. Press the “ESC Key”

8. Select and Execute the “D. A/D OFFSET” item

9. Input a stable 0V to A/D channel 0, pin1 of CN3

10. Adjust VR1 until the A/D data shown on the screen is between 2048 to 2049

11. Press the “ESC Key”

12. Repeat step_3 to step_11 until there is no need to adjust VR2,VR1

13. Select and Execute “E. PGA OFFSET” item

14. Input a stable 0V to A/D channel 0, pin 1 of CN3

15. Adjust VR7 until the A/D data shown in screen between 2048 to 2049

16. Press “ESC Key”

17. Select and Execute “F. PGA REFERENCE” item

18. Input a stable 0V to A/D channel 0 , pin1 of CN3

19. Adjust VR6 until the A/D data shown on screen is between 0 and 1

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Omega ISA- BUS MULTI-FUNCTIONAL BOARD OME-A822PG Instrukcja Użytkownika Strona 45