NEC M283X Installation Guide

NEC Display Solutions of America, Inc.
M283X/M323X/M363X/M403X Installation Guide
Ceiling Mounted and Desktop Rev 1.0
www.necdisplay.com M283X, M323X, M362X, M403X Page 2 of 6
Diagrams and Distance Charts
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of
installation.
Distances are in inches. For millimeters multiply by 25.4.
Ceiling Mounted
Desktop
Distance Chart for popular 4:3 screens
4:3 Screen Formulas:
W = H x 4/3
H = W x 3/4
Screen Diagonal = W x 5/4
Projection Formulas:
B = 0.4875W – 0.156
C (wide) = 1.545W – 1.976
C (tele) = 2.626W – 3.082
D = 0.112W + 0.1726
α (wide) = tanˉ¹ (B/C(wide))
α (tele) = tanˉ¹ (B/C(tele))
Note: For screen sizes not indicated on the projection
tables, use the formulas on page 1.
Diagonal Width(W) Height (H)
inches inches inches inches
30 24 18 12 35 - 60 18.2 - 10.9
60 48 36 23 72 - 123 17.8 - 10.7
67 54 40.2 26 81 - 138 17.8 - 10.7
72 58 43.2 28 87 - 148 17.8 - 10.7
84 67 50.4 33 102 - 173 17.8 - 10.6
90 72 54 35 109 - 186 17.7 - 10.6
100 80 60 39 122 - 207 17.7 - 10.6
120 96 72 47 146 - 249 17.7 - 10.6
150 120 90 58 183 - 312 17.6 - 10.6
180 144 108 70 221 - 375 17.6 - 10.6
210 168 126 82 258 - 438 17.6 - 10.6
240 192 144 93 295 - 501 17.6 - 10.6
270 216 162 105 332 - 564 17.6 - 10.6
300 240 180 117 369 - 627 17.6 - 10.6
Screen Size (4:3)
3
inches
B
C
w ide - tele
inches
27
degrees
D
α
w ide - tele
6
6
7
8
8
9
11
14
16
19
22
24
B
C
Lens C tr
Screen C tr
Throw D istance
Screen Bottom
2.38"
C
Throw D istance
Screen Top
Lens Offset F rom
Mount Pipe
D
B
Lens C tr
Screen C tr
D
5. 43
5. 56
3. 31

NEC M283X Specifications

General

Brand	NEC
Model	M283X
Category	Projector
Language	English