ORTHORALIX 9200
Service Manual
A-10
Gendex Dental Systems 4519-190-71193-7
A.5.4.15
Exposure control
There is a single step exposure handswitch which commands the
rotation start (Pan modes only) and the X-ray exposure.
A remote control box is available, to enable remote exposure
command.
It includes a 20 m long cable provided with plug connector, for
connection to the Z-carriage.
The handswitch plugs into the Z-carriage, or into the remote
control box, via a flexible cord, 3 m long.
When not hand held, it is hung to a suitable hook of the Z-carriage,
or at the remote control box.
A.5.4.16
Centering lights
The equipment is provided with three centering lights, generated
by laser projectors:
1.
the first is for the horizontal alignment at the Frankfurt plane
and is projected on to the patient’s face through the semi-
transparent frontal mirror
2.
the second, a mid-sagittal vertical light, detects lateral dis-
placement and inclination of the patient’s head and is pro-
jected on to the patient’s face through the semi-transparent
frontal mirror
3.
the third is for the longitudinal alignment at the tip of the
cuspids, and is projected on to the patient’s face from the
lamp projector on the Pan cassette carriage.
The position of laser sources are emphasised by
mean of a warning label. Although compliant to the
safety rules, it is a good practice for the operator to
avoid to expose his eyes and patient’s eyes directly
to the laser beam.
A.5.4.17
Screen film sensibility selection
The operator can select the sensibility corresponding to the
screen/film combination used by changing the default speed
value (250 for the Kodak Lanex Medium - Kodak T-MAT-G or
equivalent) via a software procedure.
Depending on the above selection the system will automatically
adjust the mA value used during the X-ray exposure.
Please refer to the Operator’s Manual for the different screen/
film combinations that can be used and for more details about
the software procedure.
This is not applicable for the Orthoralix versions having the digital
sensor.
A.5.4.18
Service programs
The Orthoralix system incorporates diagnostic service software
programs, which can be run either by the operator for a routine
check of the machine before use, or by the service engineer
for assessing system operation before starting any corrective
maintenance.
The service program procedure is started up by pushing together
the DUMMY RUN and PATIENT SIZE keys when switching on the
machine: the keys must be kept pressed till the message WAIT
disappears on the display.
The service programs consist of several selective tests, each one
independent from the others.
The main tests allowed are as follows:
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Refer to Section F of this manual for more details about the service
programs.
A.5.4.19
Orthoralix 9200 CCD sensor
Sensor active area:
147 X 6 mm Pan 220 X 6 mm Ceph
Sensor pixel size:
0.096 mm
Image size:
full panoramic 1536 x 2725 pixels
full ceph 2304 x 2529 pixels
Cable length:
25 m from Or thoralix system
to the LAN plug
Resolution:
4 lp/mm
A.5.4.20
Laser projectors
Class:
2, according to IEC 60825-1 (2001-8)
Wavelength:
650 nm
Beam divergence
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Pulse duration:
30 s
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Printed on: 20 Apr 2012, 04:59:40 pm; Printed by: UWE.ZELLER
