ViewSonic LS850WU - 5000 Lumens WUXGA Networkable Laser Projector with 1.6x Opti - Page 3

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Safety Precautions - General Please read the following Safety Precautions before you start using the projector. • Keep this user guide in a safe place for later reference. • Read all warnings and follow all instructions. • Allow at least 20" (50 cm) clearance around the projector to ensure proper ventilation. • Place the projector in a well-ventilated area. Do not place anything on the projector that prevents heat dissipation. • Do not place the projector on an uneven or unstable surface. The projector may fall over, causing personal injury or projector malfunction. • Do not use if the projector is tilted at an angle of more than 10° degrees left or right, nor at an angle of more than 15° degrees forwards or backwards. • Do not look straight at the projector lens during operation. The intense light beam may damage your eyes. • Always open the lens shutter or remove the lens cap when the projector light source is on. • Do not block the projection lens with any objects when the projector is under operation as this could cause objects to become heated and deformed or even cause a fire. • The light source becomes extremely hot during operation. Allow the projector to cool for approximately 45 minutes prior to removing the light source assembly for replacement. • Do not use light sources beyond the rated light source life. Excessive use of light sources beyond the rated life could cause them to break on rare occasions. • Never replace the light source assembly or any electronic component unless the projector is unplugged. • Do not attempt to disassemble the projector. There are dangerous high voltages inside which may cause death if you should come into contact with live parts. • When moving the projector, be careful not to drop or bump the projector on anything. • Do not place any heavy objects on the projector or connection cables. • Do not stand the projector on end vertically. Doing so may cause the projector to fall over, causing personal injury or projector malfunction. • Avoid exposing the projector to direct sunlight or other sources of sustained heat. Do not install near any heat sources such as radiators, heat registers, stoves, or other devices (including amplifiers) that may increase the temperature of the projector to dangerous levels. • Do not place liquids near or on the projector. Liquids spilled into the projector may cause it to fail. If the projector does become wet, disconnect it from the power supply and call your local service center to have the projector serviced. 3

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3
Safety Precautions - General
Please read the following
Safety Precautions
before you start using the projector.
• Keep this user guide in a safe place for later reference.
• Read all warnings and follow all instructions.
• Allow at least 20“ (50 cm) clearance around the projector to ensure proper
ventilation.
• Place the projector in a well-ventilated area. Do not place anything on the
projector that prevents heat dissipation.
• Do not place the projector on an uneven or unstable surface. The projector may
fall over, causing personal injury or projector malfunction.
• Do not use if the projector is tilted at an angle of more than 10² degrees left or
right, nor at an angle of more than 15² degrees forwards or backwards.
• Do not look straight at the projector lens during operation. The intense light
beam may damage your eyes.
• Always open the lens shutter or remove the lens cap when the projector light
source is on.
• Do not block the projection lens with any objects when the projector is under
operation as this could cause objects to become heated and deformed or even
cause a fire.
• The light source becomes extremely hot during operation. Allow the projector to
cool for approximately 45 minutes prior to removing the light source assembly
for replacement.
• Do not use light sources beyond the rated light source life. Excessive use of light
sources beyond the rated life could cause them to break on rare occasions.
• Never replace the light source assembly or any electronic component unless the
projector is unplugged.
• Do not attempt to disassemble the projector. There are dangerous high voltages
inside which may cause death if you should come into contact with live parts.
• When moving the projector, be careful not to drop or bump the projector on
anything.
• Do not place any heavy objects on the projector or connection cables.
• Do not stand the projector on end vertically. Doing so may cause the projector
to fall over, causing personal injury or projector malfunction.
• Avoid exposing the projector to direct sunlight or other sources of sustained
heat. Do not install near any heat sources such as radiators, heat registers,
stoves, or other devices (including amplifiers) that may increase the
temperature of the projector to dangerous levels.
• Do not place liquids near or on the projector. Liquids spilled into the projector
may cause it to fail. If the projector does become wet, disconnect it from the
power supply and call your local service center to have the projector serviced.