ETC XDLT User manual

ETC Assembly Guide
XDLT Lens Tubes
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Product information and specifications subject to change. ETCintends this document to be provided in its entirety.
7462M2500 Rev A Released 2021-02
Overview
This Assembly Guide describes the placement of lenses in XDLT Lens Tubes, and describes how to
safely clean the lenses.
Lens Markings and Positions
Each lens has a colored dot at its edge on the side of the lens facing the front of the fixture. The
images below show the position of lenses within the lens tubes. Locations of lenses are also marked
on the inside of the lens tube housing.
14° XDLT lens tube
Lens dot color = Red
7462A2004-K
19° XDLT lens tube
Lens dot color = Green
7462A2005-K
26° XDLT lens tube
Lens dot color = White
7462A2006-K
36° XDLT lens tube
Lens dot color = Blue
7462A2007-K

ETC Assembly Guide
Lens Tubes
Lens Tubes Page 2 of 2 ETC
Clean Glass Lenses (14°,19°, 26°, and 36° Lens Tubes)
WARNING: Do not use ammonia-based cleaners or other harsh commercial
cleaners. Clean lens and reflector only as directed.
Commercially available glass cleaning agents should be avoided as they may
contain ammonia, other harsh chemical detergents or abrasive agents. These
cleaners may damage the glass surface and the Anti-Reflective coatings. Do not
immerse or soak the glass in any cleaning solution.
Remove any dust with a blast of oil-free air or wipe with a clean, lint-free cloth. You can use
isopropyl alcohol, distilled water, or a 50%-50% mixture of each to clean the glass surface.
Clean Polymer Lenses (5° and 10° Lens Tubes)
WARNING: Handle a polymer lens only by its edges. Never rub anything dry
on a polymer lens. Do not use commercial glass cleaners on a polymer lens.
Cleaning using commercial glass cleaners will damage the lens.
Remove dust with a blast of oil-free air. If this is not sufficient, follow the instructions below.
1. Dip the lens in a clean isopropyl alcohol/water mixture (9 parts water to 1 part isopropyl
alcohol).
2. Use a soft moistened nylon bristle brush to wash the smooth side of the lens using a linear
(non-circular) motion.
3. Use the same brush to lightly wash the ridged side of the lens by following its ridges.
4. Dip the lens in a clean isopropyl alcohol/water mixture (9 parts water to 1 part isopropyl
alcohol).
5. Use an air gun to dry the smooth surface, and then use the air gun to dry the ridged surface.
Use the airstream to move the liquid away from you, removing as much liquid as possible.
6. Inspect the lens for dirt. If necessary, repeat the entire process.