Barco REALITY 8200LC R9001218 Owner's Manual

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Barco REALITY 8200LC R9001218 Owner's Manual Manual pdf 9 page image

2-1Installation Guidelines5975848A BARCOREALITY 8200LC 2711972 INSTALLATION GUIDELINES6FUHHQZLGWKInstallation guidelinesCareful consideration of things as image size, ambient light level,projector placement and type of screen to use are critical to theoptimum use of the projection system.* EnvironmentDo not install the projection system in a site near heat sources suchas radiators or air ducts, or in a place subject to direct sunlight,excessive dust or humidity. Be aware that room heat rises to theceiling; check that temperature near the installation site is notexcessive.* What about ambient light ?The ambient light level of any room is made up of direct or indirectsunlight and the light fixtures in the room. The amount of ambient lightwill determine how bright the image will appear. So, avoid direct lighton the screen.Windows that face the screen should be covered by opaque draperywhile the set is being viewed. It is desirable to install the projectingsystem in a room whose walls and floor are of non-reflecting material.The use of recessed ceiling lights and a method of dimming thoselights to an acceptable level is also important. Too much ambient lightresults in a ëwash outí of the projected image. That appears as lesscontrast between the darkest and lightest parts of the image. Withbigger screens, the ëwash outí becomes more important. As a generalrule, darken the room to the point where there is just sufficient lightto read or write comfortably. Spot lighting is desirable for illuminatingsmall areas so that interference with the screen is minimal.* Which screen type?There are two major categories of screens used for projectionequipment. Those used for front projected images and those for rearprojection applications.Screens are rated by how much light they reflect (or transmit in thecase of rear projection systems) given a determined amount of lightprojected toward them. The ëGAINí of a screen is the term used. Frontand rear screens are both rated in terms of gain. The gain of screensrange from a white matte screen with a gain of 1 (x1) to a brushedaluminized screen with a gain of 10 (x10) or more. The choicebetween higher and lower gain screens is largely a matter ofpersonal preference and another consideration called the Viewingangle.In considering the type of screen to choose, determine where theviewers will be located and go for the highest gain screen possible.A high gain screen will provide a brighter picture but reduce theviewing angle.For more information about screens, contact your local screensupplier.* What image size? How big should the image be?The projector is designed for projecting an image size (video) from1.00m (3.3ft) to 15.00m (49.2ft) with a aspect ratio of 4 to 3.Max. ambient temperature : 104∞F.Min. ambient temperature : 32 ∞F.The projector will not operate if ambient air temperature falls outsidethis range (32∞F- 104∞F).