61 97 102 D3495
28
D3495
.
201.03.07
.
02 08.2011
6 Exposure times
Sirona Dental Systems GmbH
6.1 HELIODENT DS
Operating Instructions XIOS
Plus
Sensors
and with a focus-sensor-distance of 23 cm. Corresponding values apply
to devices from other manufacturers and to AC tube units. However, for
optimal image quality DC tube units should be used.
6.1
HELIODENT DS
HELIODENT DS
General
HELIODENT DS has its own exposure times for operation with digital X-
ray sensors.
The preset exposure times are not valid for XIOS
Plus
sensors.
To switch from conventional to digital acquisition, briefly press the D
button.
● The word "DIGITAL" lights up on the membrane keyboard to indicate
the switch-over.
● The reduced exposure time is indicated.
➢ In this case please use the radiation limiter for digital acquisition.
For a detailed description please refer to the Operating Instructions of the
HELIODENT DS.
6.1.1
HELIODENT DS Serial Nos. 15864 and higher (wall
model) and 4416 and higher (ceiling model)
HELIODENT DS Serial Nos. 15864 and higher (wall model) and 4416 and higher (ceiling model)
Possible exposure times
Recommended exposure times – with 8"
SSD cone and XIOS size 1 / size 2 X-ray
sensors
An excellent image quality is achieved with XIOS sensors when using a
radiation time of 0.08 to 0.10 s (at 60 kV, 7 mA).
NOTICE
Please observe the corresponding specifications of the X-ray device
manufacturer.
NOTICE
Better image quality
Since the positioning of the sensors in the beam path of the cone
strongly influences the image quality, using the parallel technique (with
XIOS sensor holders) is recommended for optimal positioning of the
sensors.
NOTICE
Prior to an exposure, check the following:
- Is digital exposure selected (illuminated display "DIGITAL")?
- Is the correct exposure time for the exposure region displayed?