Barco R92112071, User Manual

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3. Installation guidelines
or similar (these deposit a thin layer of greasy residue upon the projectors internal optics and imaging electronic surfaces, degrading
performance), then it is highly advisable and desirable to have this contamination removed prior to it reaching the projectors clean
air supply. Devices or structures to extract or shield contaminated air well away from the projector are a prerequisite, if this is not
a feasible solution then measures to relocate the projector to a clean air environment should be considered. Make sure that the
projector never runs with dirty dust
fi lters as this will dramatically reduce the lifetime of the consumables. It is advised to replace
the air fi lters at any lamp change. Barco reserves itself the right to refuse warranty replacement of consumables if they have been
used in a projector with dirty air fi lters. Only use the manufactures recommended cleaning kit which has been speci fi cally designed
for cleaning optical parts, never use industrial strength cleaners on a projectors optics as these will degrade optical coatings and
damage 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-effective
and impracticable. Damage of this nature is under no circumstances covered under the manufactures warranty and may deem the
warranty null and void. In such a case the client shall be held solely responsible for all costs incurred during any repair. It is the
clients responsibility to ensure at all times that the projector is protected from the harmful effects of hostile airborne particles in the
environment of the projector. The manufacture reserves the right to refuse warranty repair if a projector has been subject to wantful
neglect, abandon or improper use.
What about ambient light ?
In simulation applications, the effect of any ambient light or indirect lighting will in fl uence the contrast and brightness level of the
image. Due to this the quality of the perception of the projected scene can decrease. Therefor it is most important to avoid any
unwanted light or re
fl ection. Some rules can be useful:
• switch off any light source during projection
• re fl ection should be avoided, e.g. by using dark wall, ceiling and fl oor color
• windows must be fully darkened
• only aimed spotlight should be used to illuminate small areas if really needed
It is important to carefully consider lighting conditions. Dedicated engineers or scientists can point out the necessary conditions for
a 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 rear
projection applications. Screens are rated by how much light they re
fl ect (or transmit in the case of rear projection systems) given a
determined amount of light projected toward them. The ‘GAIN’ of a screen is the term used. Front and rear screens are both rated
in 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 a
gain of 10 (x10) or more. The choice between higher and lower gain screens is largely a matter of personal preference and another
consideration called the Viewing angle. In considering the type of screen to choose, determine where the viewers will be located
and go for the highest gain screen possible. A high gain screen will provide a brighter picture but reduce the viewing angle. For
more information about screens, contact your local screen supplier.
Image size
The 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 of
4 to 3.
Image retention
Image retention can affect LCOS projectors, in extreme cases, permanent “burn” can occur if still/repetitive images are left on the
screen 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 images
3. Turn off the projector when not in use
Running cycle
To 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 the
panels can recover and the longer they will last.
12 R59770198 BARCO SIM 7D 13/02/2013