Barco MGD 221 MKII user manual Important considerations

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Important considerations

The best environment for diagnostic imaging is one with controlled and dimmed ambient light. The human eye's sensitivity depends on the ambient light strength. It is most sensitive to small contrast changes (or subtle image details) at limited ambient light levels.

The best ambient light level, expressed in Lux, depends on the application. An office illumination typically requires 500 Lux. A dimmed environment, like a softcopy room, requires less than 100 Lux.

Using your display in a controlled and dimmed environment also extends its lifetime, because the display can operate at limited brightness and contrast. These levels correspond to the calibrated position in most cases.

A controlled ambient light environment implies the ambient light is as constant as possible. Cover windows to keep out the daylight. Avoid switching the lights and viewing boxes on and off. A consistent environment results in more image consistency and less eye fatigue.

Avoid reflections in the picture tube. Provide indirect lighting. Don't place the displays in front of or close to a light source like a window or viewing box, although this may be very tempting. As a rule of thumb, keep viewing boxes at least one metre (3 feet) away from the displays.

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Contents Medical Greyscale Display MGD 221 MkiiTrademark information MGD 221 Users Guide Safety Instructions MGD 221 Users Guide Contents MGD 221 Users Guide Overview IntroductionPower saving system Versions and optionsAbout the manuals Installation PrecautionsPackage contents Controls and connectors Connection of video signals Signal connectionConnection of optical sensor Connection of data signalsPositioning the display Connection of powerImportant considerations Operation User Controls Switching on / offPower on/off Automatic power saving system DpmsContrast and brightness control To activate the OSDTo put contrast in calibrated position To control contrast manually To put brightness in calibrated positionTo control brightness manually Viewing Status information To view the status informationExplanation of the Status information menu items Activity timeout Other adjustmentsAdvanced Settings and Adjustments For Service Staff only SettingsTo change the settings Saving the settings Explanation of the Settings menu itemsGeometry Rotation AdjustmentsHow to make the adjustments Description of the adjustmentsAdvanced SH Compensation SH Compensation ON/OFF Interlacing Pre correctionInterlacing Post correction SH Compensation optionalSH Compensation SH Position Advanced Advanced ALC optional To adjust the ALC system, proceed as followsFocus Static focus Focus zoneWhat happens upon saving? Factory resetHow to save changes Proceed as follows Luminance uniformityMaintenance Picture tubeCabinet Troubleshooting There appears no image, the green LED is onThere appears no image, the green LED is blinking Luminance Uniformity Correction Appendix a Background InformationPage AR panel 30% Appendix B Technical Specifications