NEC Display Solutions of America, Inc.
UM330X Installation Guide
Desktop and Ceiling Mount v1.1
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
61.549 374.19 28.02 17.71 9.57
65.052 395.20 29.38 18.72 9.88
70.056 426.64 31.32 20.16 10.32
75.060 458.08 33.27 21.60 10.77
80.064 489.52 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
CD
Screen S ize
AB
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