54 Installation Diagram
a’ (N) = {(PS × 18.527/0.6299) – 24.3} × 1.020 + 9.3
a’ (M) = {(PS × 22.247/0.6299) – 24.3} × 0.98 + 9.3
x = b + {PS × 5.073 + (a’ + 24.3 – 9.3) × 0.07484 – 1.8 + 76.7}
The alphabetical letters in the charts and calculation methods indicate the following.
PS:projected image size me asured diagonally
a’: distance between the hole (front) for mounting a projector suspension support on bottom
surface of this projector and the center of the screen
b: distance between the projector suspension support mounting surface on bottom of this
projector and the ceiling
x: distance between the center of the screen and the ceiling
N: minimum
M: maximum
Unit: mm (inches)
PS
(inches)
40 60 80 100 120 150 180 200 250 300
(mm) 1016 1524 2032 2540 3048 3810 4572 5080 6350 7620
a’ N 1185
(46 5/8)
1785
(70 1/4)
2385
(93 7/8)
2985
(117
1
/
2
)
3585
(141
1
/
8
)
4485
(176
9
/
16
)
5385
(212)
5985
(235
5
/
8
)
7485
(294
11
/
16
)
8985
(353
23
/
32
)
M1370
(53
15
/
16
)
2062
(81
3
/
16
)
2754
(108
7
/
16
)
3447
(135
11
/
16
)
4139
(162
15
/
16
)
5177
(203
27
/
32
)
6216
(244
23
/
32
)
6908
(271
31
/
32
)
8638
(340
3
/
32
)
10369
(408
7
/
32
)
xBased on the calculation formula given below.
bFree