EXPOSURE VALUES
18 Prostyle Intra X-ray Unit
User's manual
9.2
Preprogrammed settings values
NOTE Two sets of exposure values (time/kV) have been pro-
grammed for each exposure region: one for adult
mode and one for child mode.
NOTE The exposure values are programmed corresponding
the normal mode density value 0 (factory preset va-
lue).
NOTE In the digital imaging mode the exposure time values
are automatically scaled according to the density va-
lue used in digital imaging mode. The factory preset
density value in the digital imaging mode is -4.
These values can be programmed by the user, see sec-
tion 10.2 “Programming the preprogrammed settings”
on page20. The recommended exposure values are gi-
ven in section 12 “EXPOSURE VALUE TABLES” on
page 23.
Changing the density value will change the selected ti-
me value as follows: one density step equals to one ti-
me step. The negative density value shortens the selec-
ted time value, whereas the positive value lengthens it.
NOTE These values are for speed D films (Kodak Ultra-
speed) and for digital imaging. For the speed E films
(Kodak Ektaspeed) select three steps shorter exposu-
re time, and for the speed F films (Kodak Insight) fi-
ve steps shorter exposure time.
When using the 30 cm long cone program the values
according to the table given in section 12 “EXPO-
SURE VALUE TABLES” on page 23.
Table 4:Preprogrammed settings values with 20 cm (8”) cone
INCISORS
PREMOLARS
AND CANINES
MOLARS
OCCLUSAL
EXPOSURE
kV
time
kV
time
kV
time
kV
time
Adult
Maxilla
60
0.20
63
0.20
63
0.25
70
0.20
Mandible
60
0.16
63
0.16
63
0.20
70
0.20
Child
Maxilla
60
0.12
60
0.16
60
0.20
66
0.16
Mandible
60
0.10
60
0.12
60
0.16
66
0.16
