DIADOS E
T11035
Operating Manual
– Performing a Measurement
D616.131.00/10 en
35
4.5 Measurement at Dental X-ray
Units
For measurement of the image receptor dose K
B
at
intraoral, remote and panorama X-ray units,
DIADOS E must be set to radiological units (Setup
menu).
The desired dental qualities must be selected with
the
keys
ALT
+
FILTER
.
For
filtration
with
2.5 mm Al (RAD application) and 8.5 mm Al, the
calibration factors for a tube voltage of 70 kV are
stored in the DIADOS E; you will find the correction
factors k
q
for 50 and 90 kV in the calibration certifi-
cate of the respective detector (refer also to user
manual of the detectors D860.131.00).
4.5.1 Measurement at Intraoral and Remote X-
ray Units
Positioning the semiconductor detector
Position the detector in the image receptor plane of
the X-ray unit such that the active field of the detec-
tor is fully irradiated while the radiograph is taken; a
square on the detector housing marks the active
field.
You can install the detector in the X-ray path, using
Velcro tape. The Velcro tape should be attached on
the back of the detector for this purpose.
CAUTION
Improper handling.
Equipment damage!
Do not use tape with two adhesive sides be-
cause the detector is difficult to remove. Keep
the X-ray path clear of adhesive tape.
Additionally, an absorber according to DIN 6868-51
(PTW absorber T42018 or T42029) must be in-
stalled between the focus and the detector and the
correct radiation quality must be selected with the
FILTER
key at the DIADOS E (see section 1.5.6).
Performing a measurement
Use the MODE key to set the DIADOS E to normal
mode.
DIADOS E is permanently in the Autostart mode.
This means that a dose measurement begins, as
soon as a signal is detected.
Perform a zero adjustment.
Initiate a radiograph at the X-ray unit; after the ex-
posure, you can toggle between the image receptor
dose K
B
and the duration of the measurement with
the
ALT
key.
To perform a new measurement, simply initiate
another radiograph; this will automatically delete the
previous parameter readout (Autoreset).
