Navigation Light System Components
Light
The LED 155 lantern is used as a light signal on floating devices and harbour lights. Compared to standard 85 mm lanterns, the light output of the red and the green lights at the same input power is more than 5 times greater. The vertical divergence is equivalent to or better than the standard 85 mm and 155 mm lenses on the market.
The single piece moulded polycarbonate lens ensure minimal fading or discoloration. The base is marine aluminium alloy with a high quality hot baked epoxy coating. The light intensity can be adjusted from 20% to 100% of the nominal intensity by changing a resistor. The controller “Smart Flasher 6-28” fits inside the base of the lamp.
The light source and the optical system are designed for up to 10 years of unattended operation.
The lights have two intensity options available in different light colours (red, green, white and yellow) and they have a lifetime of up to 10 years.
Technical specifications of the lamp:
Overall diameter 170 mm
Signal standards IALA
Weight 3.9 kg
Temperature range -40° to + 60°C
Luminous intensity (cd) at different power consumption:
|
2W
|
5W
|
|
white
|
39
|
100
|
|
green
|
46
|
116
|
|
red
|
37
|
94
|
Controller
The controller Smart Flasher 8-28 represents the best available technology, with a wide range of functions in one unit. The flash characteristics are freely programmable. Smart Flasher fits into the base of the lantern and also acts as a charge controller for the solar array.
A built-in daylight sensor provides the signal for switching on the light when it gets dark. Seasonal light control is possible using the built-in calendar clock. A serial communications port allows for configuration and/or remote monitoring and control. Monitored data include voltage, current, Ampere-hours and operating hours. High reliability is assured by reducing the number of components to the absolute minimum.
Solar module
Depending on the insolation and weather in the location we select low to medium power modules in the range 13 to 85 peak Watts (Wp), according to system needs.
For example the 13-Watt module type NP13RGFV is a special rugged construction with a 3mm composite base and a durable fluoropolymer cover. We have made it especially for ease of mounting and durability. The other modules used are of the conventional framed glass construction.
Mounting the module
A special adjustable mounting structure allows the module to be mounted on a 75mm or 60 mm pole or other vertical structure.
In tropical locations, the sun may be in either the North or South sky, depending on the season and a module mounted this way could be in shadow. Thus for tropical systems with this type of mounting, two modules are specified, one on each side of the pole or mast.
Battery
One or two sealed (valve-regulated) batteries are housed in the battery enclosure along with the controller and associated electrical hardware. These batteries are maintenance-free in that they require no water additions throughout their lifetime!
The actual battery life will depend on the exact conditions of the site location system installation. We have carefully chosen these batteries to give the longest possible lifetime in SPNL systems, typically a minimum of 3 years in the hottest environments and up to 8 years in cooler climates.
The batteries have been sized to give system autonomy of at least 5 days under mid-winter conditions, and in the larger systems the autonomy period is considerably more than 5 days.
| 
