EPSON PowerLite 5350/7250/7350 Projector
4 -
EPSON
PowerLite 5350/7250/7350 Projector
8/99
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:
M
aximum projection distance = (8.9139
×
diagonal size)
−
16.9083
M
inimum 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:
M
aximum projection distance = (4.1122
×
diagonal size) - 11.9430
M
inimum projection distance = (3.4721
×
diagonal size) - 14.3256
Projector Status Lights
The status lights on top of the projector tell you the
projector’s operating status.
Caution: A red light warns you if a serious problem occurs.
Power Light
Projection Lamp Light
Temperature 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.
Light status Meaning
Orange and
red flashing
alternately
Projection lamp needs replacing.
Steady red Projection lamp has burned out. Replace lamp.
Flashing red Problem with projection lamp or lamp power supply.
Off Lamp is functioning normally.
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.
