OCEM SLRE Series, Instruction Manual

Page: 9 / 35

Document UT-MT-0428 Page 9 of 35
Edition 11/03/2014 Supersedes edition 04/30/2012
INSET RUNWAY EDGE LIGHT SLRE
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
The shallow base installation becomes very easy because no precise toe-in is required
during civil.
The dome is provided with six through holes for fastening the light unit to the base
and two suitable slots, in opposite position, to make easy the fixture removal by
using two suitable lifting tools (available on request, P/N 332.4140 or 332.4230). As
alternative, two screwdrivers can be used.
A silicone O-Ring (separately supplied) has to be mounted outside around the dome,
to avoid dirt deposits between dome and shallow base.
2.1.2 Optical Assembly
The optical assembly (bidirectional) consists of two prisms (Figure 1 - n°3) with
relevant gaskets (Figure 1 - n°4), one or two filters with relevant holder, when
required, (Figure 1 - n°8-9) and one or two lamps (Figure 1 - n°13). Unidirectional
fixtures mount only one lamp, one prism and one filter, when required.
Fixtures can be provided with six kinds of lamp supporting plate in order to obtain
the following configurations:

ICAO 45 m and 60 m ("C"+"A") (P/N 152.9025)

ICAO 45 m and 60 m ("C"+"B") (P/N 152.9085)

FAA green-red ("C"+"A") (P/N 152.9141)

FAA green-red ("C"+"B") (P/N 152.9151)

FAA red-red ("C"+"A") (P/N 152.9161)

FAA red-red ("C"+"B") (P/N 152.9171)
The lamp is of tungsten-halogen type, rated 105 W 6,6 A, 1500 hours average lamp
life, with dichroic reflector and male faston plug wires. The lamp is locked into its seat
by a single elastic holder (stainless steel) in order to realize an easy and quick lamp
replacement.
All the optical assembly parts are factory assembled; they may be field-replaced if
necessary.
2.1.3 Lower Cover
The lower cover consists of a treated aluminium casting; it is fastened to the dome
by means of three screws HSCH M5x16. An O-Ring is provided between dome and
lower cover.
The cover is provided with one or two threaded holes for cable entry and external
grounding screw with yellow-green cable lead, size 2.5 mm
2
, 0.460 m long, with male
faston terminal. A suitable valve is outside mounted for the leakage test.