BenQ PB2250 Projector User Manual

Important safety instructions 3
Safety instructions (continued)
7. Do not place this projector in any of the
following environments.
- Space that is poorly ventilated or confined.
Allow at least 50 cm clearance from walls
and free flow of air around the projector.
- Locations where temperatures may
become excessively high, such as the
inside of a car with all windows rolled up.
- Locations where excessive humidity, dust,
or cigarette smoke may contaminate
optical components, shortening the
projector’s life span and darkening the
- Locations near fire alarms
- Locations with an ambient temperature
above 40°C / 104°F
- Locations where the altitudes are higher
than 10000 feet.
8. Do not block the ventilation holes.
- Do not place this unit on a blanket,
bedding or any other soft surface.
- Do not cover this unit with a cloth or any
other item.
- Do not place inflammables near the
If the ventilation holes are seriously
obstructed, overheating inside the unit
may result in a fire.
9. Always place the unit on a level,
horizontal surface during operation.
- Do not use if tilted at an angle of more
than 10 degrees left to right, nor at angle
of more than 15 degrees front to back.
Using the unit when it is not fully
horizontal may cause a malfunction of, or
damage to, the lamp.
10. Do not stand the unit on end vertically.
Doing so may cause the unit to fall over,
causing injury or resulting in damage to
the unit.