NEC NP-UM330X UM330X Installation Guide - Page 2

Ceiling Mounted Installation

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UM330X Installation Guide Desktop and Ceiling Mount NEC Display Solutions of America, Inc. v1.0 Ceiling Mounted Installation The following diagram shows the relationship between projector position and the screen. Refer to the charts below for data. Distances are in inches. For millimeters multiply by 25.4. Distance Chart for Popular 4:3 Screen Sizes S creen Size Diagonal W idth inch inc h 61.5 49 65.0 52 70.0 56 75.0 60 80.0 64 85.0 68 90.0 72 95.0 76 100.0 80 105.0 84 110.0 88 115.0 92 116.6 93 H eight inch 37 39 42 45 48 51 54 57 60 63 66 69 70 A inch 4.19 5.20 6.64 8.08 9.52 10.96 12.40 13.84 15.28 16.72 18.16 19.60 20.06 B in ch 28.02 29.38 31.32 33.27 35.21 37.15 39.09 41.03 42.97 44.92 46.86 48.80 49.42 C inch 17.71 18.72 20.16 21.60 23.04 24.48 25.92 27.36 28.80 30.24 31.68 33.12 33.58 D inch 9.57 9.88 10.32 10.77 11.21 11.65 12.09 12.53 12.97 13.42 13.86 14.30 14.44 Note: For screen sizes not indicated in the distance charts, use the formulas on page 1. www.necdisplay.com UM330X Page 2 of 8

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NEC Display Solutions of America, Inc.
UM330X Installation Guide
Desktop and Ceiling Mount
v1.0
www.necdisplay.com
UM330X
Page 2 of 8
Ceiling Mounted Installation
The following diagram shows the relationship between projector position and the screen. Refer to the charts below for data.
Distances are in inches. For millimeters multiply by 25.4.
Distance Chart for Popular 4:3 Screen Sizes
Note:
For screen sizes not indicated in the distance charts, use the formulas on page 1.
Diagonal
W idth
H eight
inch
inch
inch
inch
inch
inch
inch
61.5
49
37
4.19
28.02
17.71
9.57
65.0
52
39
5.20
29.38
18.72
9.88
70.0
56
42
6.64
31.32
20.16
10.32
75.0
60
45
8.08
33.27
21.60
10.77
80.0
64
48
9.52
35.21
23.04
11.21
85.0
68
51
10.96
37.15
24.48
11.65
90.0
72
54
12.40
39.09
25.92
12.09
95.0
76
57
13.84
41.03
27.36
12.53
100.0
80
60
15.28
42.97
28.80
12.97
105.0
84
63
16.72
44.92
30.24
13.42
110.0
88
66
18.16
46.86
31.68
13.86
115.0
92
69
19.60
48.80
33.12
14.30
116.6
93
70
20.06
49.42
33.58
14.44
C
D
S creen S ize
A
B