50 Installation and set-up manual 208668
4. Checking the alignment and fi nishing the installation CRANEX Novus e
NOTE:
The QA images are recommended to be saved
to a dedicated place or patient card. This way
it is easy to use previous QA images as a
reference during e.g. monthly Quality Assurance
inspections.
NOTE:
When using the 0.8 mm copper fi lter the
expected Line Pair resolution achievable with
the unit is 3.1 LP/mm or better, with all four low
contrast resolution holes distinguishable.
The line pair and low contrast resolutions
actually distinguishable from the image depend,
not only on the unit capabilities, but also on
other parts of the system, for example the dental
imaging software and the display monitor being
used.
4.5 Completing the Installation
Check that the unit functions correctly:
- Take a test exposure to verify that the unit
operates correctly and the image is transferred
successfully to the PC.
Protect yourself from radiation when taking
the exposure.
- Check that the up/down keys drive the unit up
and down.
- Check that the light key switches the
positioning lights on and off.
- Check that the lights come on when the mirror
is opened.
- Check that when the emergency switch is
pressed the unit stops operating.
Remote exposure switch
- If the remote exposure switch option was
installed, check that the remote exposure
switch button works (initiates an exposure).
Also check that the remote exposure switch
warning light comes on and warning sound is
audible during the exposure.
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