USER’S MANUAL
TOP-X 100LC
<18>
R-4709-EN/G
Pushing the
PREP
button or the hand-held exposure switch to the first stop starts the
generator preparation (revs up X-ray tube anode and heats up the filament), indicated by
the
“PREPARATION…”
message on the anatomical program display and a continuous
sound. Preparation duration is usually between 1 and 2 seconds, set during generator
installation according to the X-ray tube type.
After preparation the control panel changes tone level and
“PREPARATION OK”
appears on the anatomical program display; furthermore, a green light comes on in the
middle of the X-ray symbol. Then, exposure can be made by pushing the
EXP
button
within 9 seconds while holding down the
PREP
button, or pushing the hand-held switch
to the second position.
At the start of exposure the control panel changes tone level again,
“EXPOSURE…”
appears on the anatomical program display and the X-ray symbol changes to yellow.
After exposure the actual (measured) parameters flash on the exposure parameter
display.
If exposure finishes without errors, pressing the
PREP
and
EXP
buttons or pressing the
two-state switch again will let you create another exposure with the same settings.
If an error occurred during exposure, the error message appears on the anatomical
program display. If the error did not occur due to releasing
PREP
button during
preparation (interrupted preparation), you can make the exposure again. If another error
occurred, the control panel gives a sound at pressing
PREP
. In this case you cannot
immediately make the exposure again; you have to acknowledge the error with any
button (except the
PREP
and
EXP
) on the control panel. Before acknowledging read the
error message on the anatomical program display and interpret it according to chapter 3.
If the error message is aimed at the service staff, record the message and the
parameters of the last exposure. If the error message occurred due to incorrect
parameter setting (for example AEC), modify exposure parameters and repeat the
exposure.
Notice:
If you would like to make the exposure quickly, it is not necessary to wait until
the end of preparation by pushing the
EXP
button or the second state of the manual
exposure switch. If you also push
EXP
during preparation, the X-ray starts immediately
after preparation.
2.5 Automatic exposure control (AEC, optional)
Automatic exposure control means that the generator automatically defines the exposure
time. The generator continuously measures the dosage reaching the film during exposure
with a detector chamber built in front of the film cassette, and when the amount required
for correct exposure is reached, it stops the exposure.
Notice! The exposure button must be held down during exposure! If
you release it before, exposure stops immediately and the control
panel indicates an error message.
