Sirona orthophos xg 3, Installation Instructions Manual

Page: 130 / 142

11 Appendix Sirona Dental Systems GmbH
11.2 Adjusting the panoramic X-ray unit Installation Instructions ORTHOPHOS XG 3
60 51 416 D 3352
130
D 3352.031.03.18.02
7. Evaluate the X-ray image:
– The shadow of the center needle, the needle
image and the auxiliary line must be coincident
and located behind each other.
A tolerance (offset of needle from the central
auxiliary line) of
± 0.75
mm is admissible A.
– Distance A1 must be 88.6
± 1
mm A.
– Distances A2 must be identical, each being 44.3
± 0.5
mm A.
– A white border surrounding the image on all
sides must be visible B.
IMPORTANT
Always measure exactly from pin center to pin center.
IMPORTANT
If the X-ray image still does not correspond to the ideal
image, it is possible that one or more criteria have not
yet been fulfilled:
Case 1: Center needle not coincident with auxiliary line
If the shadow of the center needle, the needle image and
the auxiliary line do not yet coincide, then repeat the adjust
-
ment procedure starting with step 5.
Case 2: Symmetry not OK
If the shadow of the center needle, the needle image and
the auxiliary line coincide, but the symmetry or the distance
between the two outer needles is not yet correct, then re
-
peat the adjustment procedure starting with step 5.
IMPORTANT
If you do not reach your goal via automatic adjustment, re
-
peat the adjustment procedure with manually determined
adjustment values (see page 132).
7.
A2 = 44.3 ± 0.5 mm
A1 = 88.6 mm ± 1 mm
Adjustment: ok (length measurement with SIDEXIS)
± 0.75 mm
ZOOM: 1:1
A
B
A2 = 44.3 ± 0.5 mm
A2 A2
± 0.75 mm