AGFA DX-D 300 User Manual page 92

92 | DX-D 300 | Operating the DX-D Software Console
Figure 29: Patient size
AEC Backup Time
If the exposure is aborted by the AEC back-up timer, the "CONT." button
blinks and the message "Not Enough Dose" is shown on the software console.
Next exposure is inhibited until the AEC function is reset by touching the
"CONT." button. When the generator is in "Prep" mode, the AEC function can
not be reset.
Figure 30: AEC Backup time
Rapid Termination
The rapid termination safety device terminates the X-ray exposure when no
radiation is detected in the ion chamber or when the selected parameters
(short backup time/mAs) are not appropriate for an exposure with AEC.
AEC rapid termination compares the AEC ramp with a 25% of the final value
at 30% of the AEC backup time. It is activated after 30% of the AEC backup
time and after 10 ms of exposure, both conditions have to be fulfilled.
Whenever the AEC is active, it is recommended to select an exposure back-up
time higher than 100 ms for improved operation of rapid termination.
The error code related to the rapid termination is E95.
0172G EN 20230627 1651