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3. Installation guidelines
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.
What image size? How big should the image be?
The projector is designed for projecting an image size : min 1.00m (3.3ft) to max 15 m (49.21ft) (depending on the ambient light
conditions), with the native aspect ratio of the projector.
3.2
Air
fl
ow guidelines
What are the air
fl
ow guidelines ?
The Air Outlet on the side of the Projector can reach high temperatures due to the High Light Output Range of the lamp.
Image 3-1
Air outlets
air intake
Image 3-2
Air inlet obstruction
C
AUTION
:
Never obstruct the cooling air inlet at the bottom of the projector.
Always insure there is enough space between the bottom of the projector and the
fl
oor, to allow air to enter
the projector.
W
ARNING
:
Do not touch this Air Outlet when the projector is switched on.
10
R59770121 NH-12 04/05/2011
Summary of Contents for Galaxy NH-12
Page 1: ...NH 12 User Guide R9010610 R59770121 06 04 05 2011...
Page 8: ...Table of contents 4 R59770121 NH 12 04 05 2011...
Page 10: ...1 Introduction 6 R59770121 NH 12 04 05 2011...
Page 16: ...3 Installation guidelines 12 R59770121 NH 12 04 05 2011...
Page 54: ...5 Setup 50 R59770121 NH 12 04 05 2011...
Page 56: ...6 Getting started 52 R59770121 NH 12 04 05 2011...
Page 93: ...7 Advanced Image 7 68 Image 7 69 Image 7 70 R59770121 NH 12 04 05 2011 89...
Page 139: ...7 Advanced Image 7 147 Image 7 148 Image 7 149 Image 7 150 R59770121 NH 12 04 05 2011 135...
Page 162: ...7 Advanced 158 R59770121 NH 12 04 05 2011...
Page 174: ...8 Maintenance Image 8 24 Installing the rear cover step 5 170 R59770121 NH 12 04 05 2011...
Page 184: ...9 Troubleshooting 180 R59770121 NH 12 04 05 2011...
Page 188: ...Glossary 184 R59770121 NH 12 04 05 2011...