Document UT-MT-0693_EN
Page 8 of 33
Edition 15/01/2020
Supersedes edition 08/01/2019
LED INSET HELIPORT LIGHT LHI
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
1.
Dome
2.
Slot for dome removal
3.
Through hole for light unit
fastening
Figure 1
–
8” Dome outside view
2.1.2
Optical Assembly
The
optical assembly
consists of one lens (Figure 5 - n°5) with relevant gasket (Figure
5 - n°4) and one LED module complete with collector lens (Figure 5 - n°12) kept into
the proper position by its support.
LED module, complete with collector lens, consists of six LEDs mounted on a metal
core PCB, coupled with the support through thermo conductive material.
All the optical assembly parts are factory assembled; they may be field-replaced if
necessary.
2.1.3
Power Supply/Control Board
The power supply/control board is encapsulated into waterproof and heat
conductive silicon resin.
The PCB powers and controls the LEDs and it’s
available in two versions: series
circuits or voltage power supply.
2.1.4
Lower Cover
The
lower cover
consists of a treated aluminium casting; it is fastened to the dome
by means of three screws HSFH M5x10. An O-Ring is provided between dome and
lower cover.
The cover is provided with one threaded hole for cable entry and external grounding
screw with yellow-green cable lead, size 2.5 mm
2
, 0.250 m long, with male faston
terminal. A suitable valve is outside mounted for the leakage test.
Watertightness between fixture and shallow base is ensured by means of a gasket
(separately supplied) to be placed on the relevant groove around the lower cover.
The fixture is supplied with one
cable lead with L-823 plug
; it consists of two single-
pole teflon leads, size 2.1 mm
2
(#14 AWG), 0.700 m long. The plug is in compliance
