AGFA 5420/100, User Manual

Page: 125 / 188

DX-D 400
User Manual
0232F EN
20191213
115
5.4 EXPOSURE CONTROLS AND STATUS INDICATORS
Radiographic exposures from the Console are made with the “ Prep ”
(preparation) and “ Expose ” buttons on the Handswitch. The status of the
exposure is indicated by the “ Ready ” and “ X-ray On ” indicators for the duration
of the exposure.
PREP: Press the Handswitch half-way (“ Prep” ) to prepare the selected X-ray
Tube for exposure. The “Ready” indicator on the Console appears in yellow
when the Tube is prepared and there are no interlock failures or system faults.
After pressing this button, the following functions are activated:

Anode rotation.

Filament current switches from stand-by to the selected mA.
Press “Prep” only when the technique is selected on the Console
and the patient is ready for the exposure. High Speed Generators
can be configured so that the anode remains running for
approximately one minute when “Prep” is pressed three
consecutive times in intervals shorter than 30 seconds.
EXP : When the “ Ready ” indicator is ON, completely pressing the Handswitch
commences the exposition. Releasing the button before the Generator
completes the selected time or AEC time will cause the exposure to prematurely
terminate. The Console will then show the actual mAs and Exposure Time
values. The message “
Exp aborted by the operator ” appears until the “Reset
Error” button is pressed to reset the error condition.
READY : When highlighted, this button indicates that the technique selected is
properly set, there are no interlock failures or system faults, the anode is rotating
and the X-ray Tube is ready for exposure.
X-RAY ON : When highlighted, this button indicates that the X-ray exposure is
in progress. When radiographic exposures are performed, an audible signal
sounds.
Prep
OFF
Exp
Note
.