Epson EPL7250 - PowerLite 7250 Multimedia Projector Руководство - Страница 4
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EPSON PowerLite 5350/7250/7350 Projector
Long Throw Zoom Lens Calculations
If you are using the optional long throw zoom lens, use the
following formulas.
To determine the minimum and maximum diagonal size of an
image when you know the projection distance:
Inches:
Maximum diagonal size = (0.4742 projection distance) + 3.2489
Minimum diagonal size = (0.2849 projection distance) + 1.8968
Centimeters:
Maximum diagonal size = (1.2045 projection distance) + 8.2521
Minimum diagonal size = (0.7236 projection distance) + 4.8179
To determine the projection distance when you know the
diagonal size of the screen image:
Inches:
Maximum projection distance = (3.5094 diagonal size) 6.6568
Minimum projection distance = (2.1090 diagonal size) 6.8519
Centimeters:
Maximum projection distance = (8.9139 diagonal size) 16.9083
Minimum projection distance = (5.3569 diagonal size) 17.4038
Fixed Wide Angle Lens Calculations
If you are using the optional fixed wide angle lens, use the
following formulas.
To determine the minimum and maximum diagonal size of an
image when you know the projection distance:
Inches:
Maximum diagonal size = (0.730 projection distance) + 3.919
Minimum diagonal size = (0.616 projection distance) + 3.050
Centimeters:
Maximum diagonal size = (1.8542 projection distance) + 9.9542
Minimum diagonal size = (1.5646 projection distance) + 7.7470
To determine the projection distance when you know the
diagonal size of the screen image:
Inches:
Maximum projection distance = (1.619 diagonal size) - 4.702
Minimum projection distance = (1.367 diagonal size) - 5.640
Centimeters:
Maximum projection distance = (4.1122 diagonal size) - 11.9430
Minimum projection distance = (3.4721 diagonal size) - 14.3256
EPSON
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PowerLite 5350/7250/7350 Projector
Projector Status Lights
The status lights on top of the projector tell you the
projector's operating status.
power light
temperature light
Caution: A red light warns you if a serious problem occurs.
Power Light
Light status
Meaning
Steady orange
Sleep mode. (The projector is plugged in, but not
projecting.)
Steady green
Power and lamp are on.
Flashing green
The projector is warming up. Allow about 30 seconds.
Flashing orange
The projector is cooling down.
Off
The power cord is not plugged in, there is no power to
the electrical outlet, or there is an internal projector
problem.
Projection Lamp Light
Light status
Meaning
Orange and
Projection lamp needs replacing.
red flashing
alternately
Steady red
Projection lamp has burned out. Replace lamp.
Flashing red
Problem with projection lamp or lamp power supply.
Off
Lamp is functioning normally.
Temperature Light
Light status
Meaning
Flashing orange
Projector is too hot.
Steady red
Projector has turned off automatically because of
overheating.
Flashing red
Problem with the cooling fan or temperature sensor,
causing overheating.
Off
The projector is functioning normally.
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projection lamp light