26 –
ENGLISH
Installation (continued)

Calculation formulas for projection distance by lens types (for PT-D12000U)

Model number of
projection lens Throw ratio Aspect ratio Projection distance (L) formula (Units: m)
Zoom lens
ET-D75LE1 1.5-2.0 : 1
4:3 Minimal distance : L = 0.0307 × Screen diagonal (inch) – 0.0760
Maximal distance: L = 0.0410 × Screen diagonal (inch) – 0.1004
16:9 Minimal distance : L = 0.0334 × Screen diagonal (inch) – 0.0760
Maximal distance: L = 0.0446 × Screen diagonal (inch) – 0.1004
ET-D75LE2 2.0-3.0 : 1
4:3 Minimal distance : L = 0.0412 × Screen diagonal (inch) – 0.0795
Maximal distance: L = 0.0617 × Screen diagonal (inch) – 0.1064
16:9 Minimal distance : L = 0.0448 × Screen diagonal (inch) – 0.0795
Maximal distance: L = 0.0672 × Screen diagonal (inch) – 0.1064
ET-D75LE3 3.0-5.0 : 1
4:3 Minimal distance : L = 0.0617 × Screen diagonal (inch) – 0.0958
Maximal distance: L = 0.1031 × Screen diagonal (inch) – 0.1216
16:9 Minimal distance : L = 0.0672 × Screen diagonal (inch) – 0.0958
Maximal distance: L = 0.1123 × Screen diagonal (inch) – 0.1216
ET-D75LE4 5.0-8.0 : 1
4:3 Minimal distance : L = 0.1031 × Screen diagonal (inch) – 0.1158
Maximal distance: L = 0.1639 × Screen diagonal (inch) – 0.1013
16:9 Minimal distance : L = 0.1123 × Screen diagonal (inch) – 0.1158
Maximal distance: L = 0.1786 × Screen diagonal (inch) – 0.1013
ET-D75LE8
7.9-15.0 : 1 4:3 Minimal distance : L = 0.1640 × Screen diagonal (inch) – 0.3862
Maximal distance: L = 0.3072 × Screen diagonal (inch) – 0.3598
8.0-15.0 : 1 16:9 Minimal distance : L = 0.1786 × Screen diagonal (inch) – 0.3862
Maximal distance: L = 0.3346 × Screen diagonal (inch) – 0.3598
ET-D75LE6 1.0-1.2 : 1
4:3 Minimal distance : L = 0.0207 × Screen diagonal (inch) – 0.0566
Maximal distance: L = 0.0248 × Screen diagonal (inch) – 0.0736
16:9 Minimal distance : L = 0.0225 × Screen diagonal (inch) – 0.0566
Maximal distance: L = 0.0270 × Screen diagonal (inch) – 0.0736
Fixed-
focus
lens
ET-D75LE5 0.8 : 1 4:3 L = 0.0158 × Screen diagonal (inch) – 0.0835
16:9 L = 0.0172 × Screen diagonal (inch) – 0.0835
Installation dimensions diagram

Figure 1 : Dimensions applying when

one unit is used

Figure 2 : Dimensions applying when

two units are used)

Figure 3 : Maximum rotation

allowable

50 cm (19.7˝)
50 cm (19.7˝)
or more
or more
Exhaust
30 cm (11.8˝) or more
30 cm (11.8˝)
30 cm (11.8˝)
or more
or more
40 cm (15.7˝)
or more
Exhaust
50 cm (19.7˝)
50 cm (19.7˝)
or more
or more
50 cm (19.7˝)
50 cm (19.7˝)
or more
or more
10 cm (3.9˝) or more
10 cm (3.9˝) or more
50 cm (19.7˝)
50 cm (19.7˝)
or more
or more
40 cm (15.7˝)
40 cm (15.7˝)
or more
or more
Exhaust
FILTER
CLEANING
OPEN
CLOSE
+15
+15
+15
+15
+15
+15
+15
+15
Attention

Leave a clearance of at least 50 cm (19.7˝) so that the ventilation opening on the rear panel will not be blocked.• Set up the projector so that air can flow freely around the rear of the projector. In addition, leave a space of • 30 cm (11.8˝) or more at the sides so that the hot air coming out from the air outlet vents does not get drawn in

through the air intake vents.

Set up the projector with a space of 40 cm or more at the front so that the air filter can be replaced.• When the projector is to be placed inside a box and used, ensure the structure has a duct or the like to • discharge air from the box, leave the clearances shown in Fig. 2, and ensure the temperature during operation

remains within the 0 C to 35 C range.