Sirona ORTHOPHOS XG 3 DS, Service Manual

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4 – 50
D3352.076.01.13.02 07.2008
4.3 Adjusting the panoramic X-ray unit Tabs 4
Evaluating the X-ray image 7. Evaluate the X-ray image:
– The shadow of the center needle, the needle image and the auxil-
iary 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).
NOTE
i
Always measure exactly from pin center to pin center.
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