61 25 665 D3437
174
D3437
.
076.01.15
.
02 06.2012
7 Adjusting/calibrating the unit
Sirona Dental Systems GmbH
7.3 Adjustment and calibration via the "Service Functions" menu
Service Manual GALILEOS
ª
The brightness distribution along the surrounding border must be
uniform (A).
A shadow in the image indicates horizontal or vertical
displacement of the diaphragm.
ª
The distance between the bottom edge and the lowest point in
the image should be 65 ± 5 pixels (measure with SIDEXIS scale).
No surrounding gray shadow should be visible (D).
A surrounding gray shadow in the image indicates that the
diaphragm is too small.
If the distance between the bottom edge and the lowest point in
the image is out of tolerance (E), or the brightness distribution
along the surrounding border is not uniform (C), or a surrounding
gray shadow is visible in the image (diaphragm opening too
small) (D), the diaphragm must be adjusted
6. If the exposure is OK (A+B), confirm this by clicking the check box
located to the right of the
"Collimator open"
button.
ª
The box will appear checked.
ª
The adjustment for the "open diaphragm" diaphragm setting is
now complete.
ª
The
"Upper jaw"
button is selectable.
7. Continue the calibration procedure with the adjustment of the "upper
jaw" diaphragm setting.
Adjustment of the "Upper jaw"
diaphragm setting
✔
The
"Service functions"
✔
The
"Diaphragm"
tab is selected.
✔
The
"Upper jaw"
is selectable in the
"Image acquisition"
menu area.
1. Set the rotary knob on the tube assembly to the "maxillary exposure"
position.
2. Click on the
"Upper jaw"
button.
ª
SIDEXIS XG makes the unit ready for exposure [ → 162].
ª
Service routine S030.5 is displayed on the control panel.
3. Take an exposure (85 kV/0.21 mAs) [ → 162].
4. Evaluate the image.
Summary of Contents for galileos
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