Dome CXtra, Руководство пользователя

Страница: 48 / 168

44 | Dome CXtra
White Level Calibration Service
The white level of a Dome display is stabilized by the internal
RightLight photometer that is calibrated during display manufacture.
The White Level Calibration service allows the end user to calibrate
the sensor using an external photometer. When the calibration is
completed, the new calibration data file is stored in the display.
A one-time, end-user calibration of the white level may be necessary
when the target luminance is outside the tolerance established for
proper display conformance, such as when the white level of a display
has failed a manual external sensor conformance test, or when two or
more displays in a multi-unit configuration show disparate white
levels. The calibration may also be required for equipment changes,
such as when new external photometers are installed at your facility.
IMPORTANT: Only administrators can calibrate the white level via
the White Level Calibration service and restore factory calibration.
White level calibration is available for use on all Dome Cx, Dome Ex,
Dome GX4MP, and Dome Sx displays. Restoration of the factory
white level calibration is available for Dome Ex, Dome GX4MP, and
Dome Sx displays.
European Reference Guidelines
The EUREF guidelines, organized by the European Reference
Organization for Quality Assured Breast Screening and Diagnostic
Services, promotes mammography care of high quality in European
Union member states. Users of Dome displays must start with a unit
that meets uniformity standards, such as AAPM TG18, and complete
the White Level Calibration procedure on each display system. If one
or more displays on a system are replaced or removed altogether, or
if an additional display is added to the system, the procedure must
be repeated.