Sirona ORTHOPHOS XG 3 DS, Service Manual

Page: 181 / 578

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59 38 399 D3352
D3352.076.01.13.02
07.2008
4 – 29
Tab 4 4.3 Adjusting the panoramic X-ray unit
4.
3
– The exposed diaphragm area must lie horizontally centered in the
image field as well as inside the superimposed auxiliary lines (A).
– A white border surrounding the image on all sides must be visible.
The maximum density must lie in the center of the diaphragm area
(A).
NOTE
i
If these criteria are not yet fulfilled, repeat the adjustment procedure starting
with step 5.
NOTE
i
If you do not reach your goal via automatic adjustment, repeat the adjustment
procedure with manually determined adjustment values (see page 4-30).
NOTE
i
If a message window indicating the need to take an additional X-ray exposure
opens at this point, repeat the adjustment procedure starting with item 5. This
is necessary even if the X-ray exposure which has been taken is already within
the tolerance limits. This additional exposure ensures that the new diaphragm
gap width offset is also correctly adjusted.
Saving the values 8. If the image is identical to the ideal image (A) , save the values:
Click
SAVE VALUES
NOTE
i
In SIDEXIS versions higher than V01.50. the values for Sx and Sy in the
PAN
-
DIAPHRAGM
submenu are setequal to zero with a correct adjustment, i.e. if
they are within the permissible tolerance. For versions < V01.50, the values in
the text boxes may deviate slightly from zero even with a correct adjustment.
z
Go on to the next adjustment step.