NEC VT440K Installation Data

Also see for MultiSync VT440: User manual Specifications Service manual User manual

NEC VT440K Installation Data Manual pdf 1 page image

Visual Systems DivisionTechnical BulletinMultiSync VT440/540 Installation DataDesktop and Ceiling Mount Rev. 1.5Page 1ContentsLens Specs, Notes and Formulas Page 1Projection Distances and Screen SizesDesktop Setup Page 2Ceiling Mount Installation Page 3Cabinet DimensionsTop, Backt and Left Side Page 4Bottom, Front and Right Side Page 5Quick Release Ceiling Mount Dimensions Page 6Timing Chart Page 7PC Control Codes Page 8Lens SpecificationsManual Zoom, Manual Focus F2.0 – 2.3 f = 35.8 – 43.0 mmScreen Sizes: 25" - 300" diagonalThrow Ratio: Full Wide: 1.90 – 1.96 (see charts) Full Tele: 2.28 - 2.35 (see charts)Offset Angle: Full Wide: 9.01 - 8.72 (see charts) Full Tele: 7.53 - 7.28 (see charts)Notesß For Screen Sizes of 25 to 300 inches not indicated on the projection tables, use the formulas below.ß If the figures on the tables do not match the figures in the formulas, use the figures in the table.ß The ceiling must be strong enough to support the LCD projector and the installation must be in accordance with any localbuilding codes.• All calculations using Screen Diagonal are based on 4:3 aspect ratio.• Distances are in inches, for millimeters multiply by 25.4.• Distances may vary ±5%.FormulasUnits: Inches (for millimeters multiply final number by 25.4)D = Screen Diagonal (4:3)H = D x 0.8 H = Screen Width (4:3)V = D x 0.6 V = Screen Height (4:3)M = 1.25H / 0.92205 M = Projection magnificationC (Wide) = 1.4516M – 1.715 C = Horizontal throw distanceC (Tele) = C (Wide) x 1.2E = 0.2165M + 2.476 E = Vertical distance between projector feet and screen centerD = 0.0571M – 2.476 D = Vertical distance between projector feet and screen bottomB = 0.2165M B = Vertical distance between lens center and screen centerF = 0.0571M F = Vertical distance between lens center and screen topαα (Wide) = tan-1 (B / C (wide)) αα = Throw angleαα (Tele) = tan-1 (B / C (tele))