Installation Guidelines3-35976067 BARCOCINE 7 151299Positioning the projectorTo indicate a correct installation position it is necessary to know the distance :- projector - ceiling or projector - floor- projector - screenTo find this correct position for the projector, equipped with HD145 lenses, formulas are given in the next paragraph.Abbreviations used on drawing and in formulasB = Distance between ceiling and top of the screen.A = Correction Value, extra value to be added to B to obtain the correct installation position. (In some cases the A value can be negative.)CD = Total distance between projector and ceiling.CD = A + B (When the result is negative, enlarge the distance between ceiling and top of the screen, mount screen lower,until CD becomes zero or positive)SW = Screen width.PD = Perpendicular distance between screen and projector.$&'3'%SURMHFWRUFHLOLQJVFUHHQZLGWK6:)URQWYLHZ7RSYLHZLensformulasFormulas for Projector to screen distance and correction value A with regard to the screen width forHD145 lenses.MetricPD[m] = 1.2642 x SW[m] + 0.2156A[cm] = 12 x SW[m] - 22.88InchPD = 1.2642 x SW + 8.48A = 0.12 x SW - 9Max phosphor width on CRT = 11 cm (4.33 inch)