162. Installation and Connections[NP610S]Screen Size B C D αDiagonal Width Height wide wideinch mm inch mm inch mm inch mm inch mm inch mm degree60 1524 48 1219 36 914 20 505 35 895 2 48 29.464 1626 51 1300 38 975 21 538 38 956 2 51 29.470 1778 56 1422 42 1067 23 589 41 1049 2 56 29.377 1956 62 1565 46 1173 26 648 46 1156 2 61 29.380 2032 64 1626 48 1219 27 673 47 1203 3 64 29.290 2286 72 1829 54 1372 30 757 53 1357 3 71 29.2100 2540 80 2032 60 1524 33 841 59 1511 3 79 29.1110 2794 88 2235 66 1676 36 926 66 1665 3 87 29.1[NP510WS]Screen Size B C D αDiagonal Width Height wide wideinch mm inch mm inch mm inch mm inch mm inch mm degree57 1448 48 1228 30 767 20 508 36 902 5 125 29.460 1524 51 1292 32 808 21 535 37 951 5 131 29.470 1778 59 1508 37 942 25 624 44 1114 6 153 29.380 2032 68 1723 42 1077 28 713 50 1277 7 175 29.287 2210 74 1874 46 1171 31 776 55 1392 7 190 29.190 2286 76 1939 48 1212 32 803 57 1441 8 197 29.194 2388 80 2025 50 1265 33 838 59 1506 8 206 29.1104 2642 88 2240 55 1400 37 928 66 1669 9 228 29.1WARNING* Installing your projector on the ceiling must be doneby a qualified technician. Contact your NEC dealer formore information.* Do not attempt to install the projector yourself.• Only use your projector on a solid, level surface. If theprojector falls to the ground, you can be injured andthe projector severely damaged.• Do not use the projector where temperatures varygreatly. The projector must be used at temperaturesbetween 41°F (5°C) and 104°F (40°C) (Eco mode se-lected automatically at 95°F to 104°F/35°C to 40°C).• Do not expose the projector to moisture, dust, orsmoke. This will harm the screen image.• Ensure that you have adequate ventilation around yourprojector so heat can dissipate. Do not cover the ventson the side or the front of the projector.Reflecting the ImageUsing a mirror to reflect your projector’s image enablesyou to enjoy a much larger image when a smaller spaceis required. Contact your NEC dealer if you need a mirrorsystem. If you’re using a mirror system and your imageis inverted, use the MENU and buttons on yourprojector cabinet or your remote control to correct theorientation. (→ page 72)CαBDB = Vertical distance between lens center andscreen centerC = Throw distanceD = Vertical distance between lens center andscreen bottom (top of screen for ceiling ap-plication)α = Throw angleNOTE: The values in the tables are design values andmay vary.Screen centerLens centerScreen bottomDistance Chart [NP610S/NP510WS]