Arrangement, On a horizontal surface suspended from the ceiling – Hitachi CP-RX79 User Manual
Page 78
6
On a horizontal surface
Suspended from the ceiling
• 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 specied mounting accessories
(
16
) and service may be required. Before installing
the projector, consult your dealer about your installation.
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
a
Screen size (diagonal)
b
Projection distance (±10%)
c1
,
c2
Screen height (±10%)
WARNING
►Install the projector in a stable horizontal position.
►Place the projector in a cool place, and ensure that there is sufcient ventilation.
►Do not place the projector anyplace where it may get wet.
►Do not place the projector where any oils, such as cooking or machine oil, are used.
► Use only the mounting accessories the manufacturer specied, 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.
Screen size
(diagonal)
4 : 3 screen
16 : 9 screen
Projection distance
Screen
height
Screen
height
Projection distance
Screen
height
Screen
height
min.
max.
min.
max.
type
(inch)
m
m
inch
m
inch
cm
inch
cm
inch
m
inch
m
inch
cm
inch
cm
inch
30
0.8
0.9
35
1.1
43
39
15
7
3
1.0
39
1.2
47
36
14
1
0
40
1.0
1.2
47
1.5
58
52
21
9
3
1.3
52
1.6
63
49
19
1
0
50
1.3
1.5
60
1.8
72
65
26
11
4
1.7
65
2.0
79
61
24
1
1
60
1.5
1.8
72
2.2
87
78
31
13
5
2.0
78
2.4
95
73
29
2
1
70
1.8
2.1
84
2.6
102
91
36
15
6
2.3
92
2.8
111
85
34
2
1
80
2.0
2.4
96
3.0
116
105
41
17
7
2.7
105
3.2
127
97
38
2
1
90
2.3
2.8
108
3.3
131
118
46
20
8
3.0
118
3.6
143
109
43
3
1
100
2.5
3.1
120
3.7
146
131
51
22
9
3.3
131
4.0
159
122
48
3
1
120
3.0
3.7
145
4.4
175
157
62
26
10
4.0
158
4.8
191
146
57
4
1
150
3.8
4.6
181
5.6
219
196
77
33
13
5.0
198
6.1
239
182
72
4
2
200
5.1
6.1
242
7.4
292
261
103
44
17
6.7
264
8.1
319
243
96
6
2
250
6.4
7.7
303
9.3
366
327
129
54
21
8.4
330 10.1 398
304
120
7
3
300
7.6
9.2
364 11.2 439
392
154
65
26
10.1 396 12.2 478
365
144
9
4
b
a
b
c1
c1
c2
c2