Arrangement - Hitachi ED-D11N User Manual

Arrangement

Refer to the illustrations and tables below to determine screen size and projection distance.
The values shown in the table are calculated for a full size screen: 1024 x 768
Screen size (diagonal)
a
• On a horizontal surface
a
c2
c1
b
• Suspended from the ceiling
b
c1
a
c2
• The screen position may shift after installation if the projector is suspended from the
ceiling or other location due to the flexibility of the plastic projector body. If readjustment
is necessary, consult with your dealer or service personnel.
• The projected image position and/or focus may change during warm-up (approx. 30
minutes after the lamp is turned on) or when the ambient conditions change. Readjust
the image position and/or focus as necessary.
• Since the projector features an ultra short throw, be aware that it is required to select a
screen carefully to have better performance.
- A soft screen such as a pull-down screen may cause serious distortion of a projected image.
A hard screen such as a board screen is recommended for use with this projector.
- A high-gain screen such as a bead screen that has narrow viewing angle is not suitable for
this projector. A low-gain screen (around 1.0) such as a matte screen that has wide viewing
angle is recommended for use with this projector.
- A screen with a weave pattern may cause moiré on the projected image, which is not a
failure of the projector. A screen that has less moiré effects is recommended for use with this
projector.
WARNING ►Install the projector in a stable horizontal position.
►Place the projector in a cool place, and ensure that there is sufficient ventilation. Do not
place the projector where the air from an air conditioner or similar unit will blow on it directly.
►Do not place the projector anyplace where it may get wet.
► Use only the mounting accessories the manufacturer specified, and leave installing
and removing the projector with the mounting accessories to the service personnel.
► Read and keep the user's manual of the mounting accessories used.
CAUTION ►Avoid placing the projector in smoky, humid or dusty place.
►Position the projector to prevent light from directly hitting the projector's remote sensor.
NOTE
• The projector may make a rattling sound when tilted, moved or shaken,
since a flap to control the air flow inside of the projector has moved. Be aware that
this is not a failure or malfunction.
Projection distance (±8%)
b
Screen size
a
(diagonal) Projection distance
m
type(inch)
60 1.5 0.683
70 1.8 0.805
80 2.0 0.927
90 2.3 1.049
100 2.5 1.170
• Keep a space of 30 cm or more between the sides of the
projector and other objects such as walls. Do not place or
attach anything that would block the lens or vent holes.
• For the case of installation in a special state such as
ceiling mount, the specified mounting accessories (18)
and service may be required. Before installing the
projector, consult your dealer about your installation.
6
, Screen height
c1 c2
b c1
Screen height
m inch m inch
27 0.279 11
32 0.314 12
36 0.350 14
41 0.385 15
46 0.421 17
c2
Screen height
m inch
1.193 47
1.381 54
1.569 62
1.757 69
1.945 77