NEC Display Solutions of America, Inc.NP300/NP400/NP500/NP600 Installation GuideCeiling Mounted and Desktop Rev 1.1www.necdisplay.com NP300/NP400/NP500/NP600 Page 2 of 6Diagrams and Distance ChartsThe following shows the proper relative positions of the projector and screen. Refer to the table to determine the position ofinstallation.Distances are in inches. For millimeters multiply by 25.4.Lens Offset FromMount PipeBCLens CtrScreen CtrThrow DistanceScreen Bottom2.22"CThrow Distance Screen Top4.56"5.17"DBLens CtrScreen CtrD2.79Ceiling MountedDesktopDiagonal Width(W) Height (H)inches inches inches inches30 24 18 6 36 - 43 9.9 - 8.260 48 36 12 73 - 88 9.7 - 8.067 53.6 40.2 14 81 - 98 9.7 - 8.072 57.6 43.2 15 87 - 105 9.6 - 8.084 67.2 50.4 17 102 - 123 9.6 - 8.090 72 54 19 110 - 132 9.6 - 8.0100 80 60 21 122 - 147 9.6 - 8.0120 96 72 25 147 - 176 9.6 - 8.0150 120 90 31 184 - 221 9.5 - 8.0180 144 108 37 220 - 265 9.5 - 8.0210 168 126 43 257 - 310 9.5 - 7.9240 192 144 50 294 - 354 9.5 - 7.9270 216 162 56 331 - 398 9.5 - 7.9300 240 180 62 368 - 443 9.5 - 7.9-20-23-25-28-9-11-14-17-6-7-8-8D αw ide - teledegreesScreen Size (4:3)-6inches-3B Cw ide - teleinchesDistance Chart for popular 4:3 screensNote: For screen sizes not indicated on the projectiontables, use the formulas on page 1.