Sirona Dental Systems GmbH
5 Preparing an exposure
Operating Instructions HELIODENT DS
5.4 Adjusting the basic setting
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5.4
Adjusting the basic setting
The exposure times are factory set for the use of Class
E
film:
e.g. Kodak Ekta Speed, Agfa-Dentus M2.
NOTE
i
Digital and conventional exposure times are pro-
grammed separately. The factory adjusted DIGITAL pro-
gramming is adjusted specifically for SIDEXIS.
In case of varying exposure conditions (see below) the
basic setting must be altered as follows:
Example:
Change over of the basic setting from Class
E
to Class
D
film for the conventional radiographic technique.
1.
Set the large patient symbol to the center area of the
object selector switch (5) (maxillary bicuspid/man-
dibular molar).
2.
Press button
D
(7) (approximately 4 sec.) until the
standby
LED
(2) and the
Digital
mode indicator (6)
start flashing.
Let go of button
D
.
3.
By turning the object selector switch (5), you can
now increase
+
, or decrease
–
the basic setting
step-by-step (max. 8 steps).
4.
Press the
D
button (7) to save the selected setting.
The Ready
LED
(2) is lit up continuously.
5.
Reset the object selector switch (5) to its original po-
sition. The basic setting is now displayed 3 steps
higher.
Do not press the
D
button (7) if you do not want to save
the setting. In this case, switch the unit OFF and then ON
again.
Varying exposure conditions
E
for Class E films
such as
Kodak Ekta Speed and
Agfa-Dentus M2
D
for Class D films
such as
Kodak Ultra Speed
For Class D films:
Set object selector switch (5) three steps higher.
Film and developing conditions
Due to varying film and developing conditions, it may be
necessary to increase or decrease the exposure setting
by one step.
Please refer to the
Exposure times
tables.
0.64
D
S
Digital
7 mA 60 kV DC
0.32
S
ca. 4 Sec
7 mA 60 kV DC
0.80
D
S
7 mA 60 kV DC
1.
3.
5.
4.
2.
0.32
D
S
7 mA 60 kV DC
D
Digital
D
0.64
D
S
7 mA 60 kV DC
5
7
7
6
2
2
Tube
Tube
Summary of Contents for HELIODENT DS
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