Barco SIM 7QP HB User Manual

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Barco SIM 7QP HB User Manual Manual pdf 16 page image

3. Installation guidelinesor similar (these deposit a thin layer of greasy residue upon the projectors internal optics and imaging electronic surfaces, degradingperformance), then it is highly advisable and desirable to have this contamination removed prior to it reaching the projectors cleanair supply. Devices or structures to extract or shield contaminated air well away from the projector are a prerequisite, if this is nota feasible solution then measures to relocate the projector to a clean air environment should be considered. Make sure that theprojector never runs with dirty dust filters as this will dramatically reduce the lifetime of the consumables. It is advised to replacethe air filters at any lamp change. Barco reserves itself the right to refuse warranty replacement of consumables if they have beenused in a projector with dirty air filters. Only use the manufactures recommended cleaning kit which has been specifically designedfor cleaning optical parts, never use industrial strength cleaners on a projectors optics as these will degrade optical coatings anddamage sensitive optoelectronics .Failure to take suitable precautions to protect the projector from the effects of persistent and prolonged air contaminants will culmi-nate in extensive and irreversible ingrained optical damage. At this stage cleaning of the internal optical units will be non-effectiveand impracticable. Damage of this nature is under no circumstances covered under the manufactures warranty and may deem thewarranty null and void. In such a case the client shall be held solely responsible for all costs incurred during any repair. It is theclients responsibility to ensure at all times that the projector is protected from the harmful effects of hostile airborne particles in theenvironment of the projector. The manufacture reserves the right to refuse warranty repair if a projector has been subject to wantfulneglect, abandon or improper use.What about ambient light ?In simulation applications, the effect of any ambient light or indirect lighting will influence the contrast and brightness level of theimage. Due to this the quality of the perception of the projected scene can decrease. Therefor it is most important to avoid anyunwanted light or reflection. Some rules can be useful:• switch off any light source during projection• reflection should be avoided, e.g. by using dark wall, ceiling and floor color• windows must be fully darkened• only aimed spotlight should be used to illuminate small areas if really neededIt is important to carefully consider lighting conditions. Dedicated engineers or scientists can point out the necessary conditions fora good simulation system environment and should be consulted before equipping the room.Which screen type ?There are two major categories of screens used for projection equipment. Those used for front projected images and those for rearprojection applications. Screens are rated by how much light they reflect (or transmit in the case of rear projection systems) given adetermined amount of light projected toward them. The ‘GAIN’ of a screen is the term used. Front and rear screens are both ratedin terms of gain. The gain of screens range from a white matte screen with a gain of 1 (x1) to a brushed aluminized screen with again of 10 (x10) or more. The choice between higher and lower gain screens is largely a matter of personal preference and anotherconsideration called the Viewing angle. In considering the type of screen to choose, determine where the viewers will be locatedand go for the highest gain screen possible. A high gain screen will provide a brighter picture but reduce the viewing angle. Formore information about screens, contact your local screen supplier.Image sizeThe projector is designed for projecting an image size with a screen width from 1.00 m (3.3 ft) to 6 m (19.7 ft) with an aspect ratio of4 to 3.Image retentionImage retention can affect LCOS projectors, in extreme cases, permanent “burn” can occur if still/repetitive images are left on thescreen for long periods of time. Such damage to the panels is NOT covered by warranty.Please ensure that the following precautions are taken to avoid this phenomenon :1. Use a screensaver (that moves)2. Periodically change/alter any background images3. Turn off the projector when not in useRunning cycleTo come to an acceptable lifetime for both lamps and panels it is necessary to turn off the projector once a day for at least one hour.In doing so the lifetime will increase considerably. However, the more time the projector is powered down each day, the better thepanels can recover and the longer they will last.12 R59770330 SIM 7QP SERIES 08/12/2014