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SIGNALLING

SIGNALLING PSL-AX

Helideck Status Light System

The status light system consists of one or two flashing
red LED main status lights visible from any direction of
approach and on any landing heading. Additional PRL-
AX-LSM repeater lights may be placed at the helideck.
If a condition exists on an installation which may be
hazardous for the helicopter or its occupants a visual
warning system should be installed. The aeronautical
meaning of the flashing red light is either Do not land,
aerodrome not available for landing or Move clear of
landing area. The system may be automatically initiated
by means of a remote alarm signal (by others) as well
as manual activation. All castings are aluminium, all
hardware is stainless steel and the lens is glass.

PRODUCT PRODUCT AVAILABLE
INFORMATION IMAGE COLOURS

Specification
The LED red status light system shall comply with UK CAA CAP 437. All exterior aluminium cast beacon parts shall be corrision resistant. The repeater lights
shall be treated for marine conditions by cleaning per US MIL method III of TT-C-490, chromate priming per US MIL-C-5541, epoxy powder base coat and
glossy polyester powdercoat finish coat in color RAL 6003 (FED-STD-595 color #14097). Oven cured per US MIL-PRF-24712A. There shall be no exterior
plastic parts; all shall be cast aluminium, glass and stainless steel.
The main status lights shall flash in sync if two or more are installed. For each main status light there shall also be installed a reduced intensity status light
which will similarly synchronize flashing when in use. Additional repeater lights may be installed at the landing area and shall not exceed 150mm in height.
The repeater lights shall be at the reduced intensity level.
The system may be switched ON by a remote signal or manually. When ON, the system may be manually switched to reduced intensity. After 30 minutes, the
system will automatically revert to normal intensity. Failure of any light will display as an alarm at the controller.
System Color Voltage Main Lights ATEX Options
PSL-35002 R: Red 1: 120 volts 1B: One (1) AX: Zone 1 & Zone 2 1R: One (1) Repeater Light
2: 220 volts 2B: Two (2) AX2: ** 2R: Two (2) Repeater Lights
4: 24 volts DC LTP: Lamp Test Pushbutton
ROS: Remote Operating Station*
ROSAX: as above for Zone 1
** System - AX has zone 1 lights only with safe area control unit. System - AX2 has zone 1 lights and zone 1 control unit.
Technical information Options - ROS and - ROSAX (Remote Override Station)
Provided for emergency remote manual operation of the status light system.
Intensity: Main status light < 700 candelas When ordered, this station uses line voltage and connects to the “RTO” terminal
Flash rate: Main status light 120 per minute block in the PSL system control unit. For a third party detection system intended
Intensity: Reduced intensity light < 60 candelas to automatically activate the PSL system, the detection system control wire must
provide line voltage matching the PSL to the ROS. The ROS switch will normally be
Flash rate: Reduced intensity light 120 per minute set in the AUTO position, but may be manually switched ON.
Wattage per 110 watts Peak (AC & DC)
Main status light 82.5 watts Average (AC & DC) Note: For PSL systems without the ROS option, the third party detection system
Frequency (AC) 50/60 Hz control wire connects directly to the “RTO” terminal block in the PSL system control
unit.
Input Voltage Range* 93 to 144 volts (120V unit)
187 to 264 volts (220V unit)
21.6 to 26.4 Vdc (24V unit) Compliances
*Note: Input to the control unit; output to the lights is 24V. Listed to ATEX Zones 1 & 2 at -52°C to +60°C
Listed by Ineris EXII 2 GD Ex de IIC T4 IP66
UK CAA CAP 437 Offshore Helideck Status Light System
Registered ISO 9001:2008
01 - WIDE AREA AVIATION IP - 52°C / CAP437 Housing colour:
IMO 2009 MODU Code (2010) paragraph 13.5.26
ABS Green Passport per MEPC179 (59)

Lens colour:

66
+60°C