Ducati Monster 796 Workshop Manual page 219

Instruments
After use, disconnect the DDA from the main wiring harness.
Erase DDA
This function enables you to delete the data saved on the DDA: the DDA must be connected to the motorcycle wiring.
To delete the data, enter the menu and select the "Erase DDA" page.
If you press switch (1) in position B "t" for 3 seconds and the DDA is not acquiring data, the message "WAIT..." is shown
on the display for 10 seconds. After 10 seconds, the message "ERASE OK" appears for 3 seconds, to confirm that the DDA
data has been deleted.
If switch (1) is pressed in the B "t" position for 3 seconds while the DDA data logger is acquiring data, the data logger
memory is not erased and the display shows message "FAIL" for 3 seconds.