Efficient port entry lights

The SL-PEL-5 has a night-time visible range of over 23NM and day-time visible range of over 5NM, and is designed specifically to suit high-precision sector applications with a typical measured changeover between colour sectors of one minute of arc.

They can be can be configured for automatic night time dimming to eliminate the requirement for moving filters and can also be individually flashed to reduce the need to employ moving oscillating boundaries.

Dana Tomaszewicz, Sealite systems engineer, said: “We were able to maintain the low 30 watt power consumption through a series of complex internal optics to suit both five and 10 degree designs. Customers using battery backup also benefit from the considerable autonomy in the event of mains power failure.”

When it comes to energy savings, Sealite said that the PEL is more than four times brighter than its nearest competitor but only consumes 12% of the power. By using 30 watts rather than 250, it is equivalent to running a furnace versus a curling iron.

With regards to cost, Sealite said that running the PEL at a rate of $0.29 per kWh (€0.21) would cost $76.21 (€53.93) as opposed to around $635.10 (€449.42) per year to run a competitor’s PEL at full intensity – an 88% saving (based on the average cost per kWh in Australia).

Sealite’s port entry lights are also ready for immediate interfacing with AIS Type 1 or Type 3 systems, as well as GSM facilities for remote monitoring and control, and have alarm relay contacts for remote monitoring to alert to fault conditions. An external light sensor may also be connected for installation flexibility.

Programming is achieved via Sealite’s convenient PC configuration tool. The user simply connects their PC to the lantern via a built in weather-proof port eliminating the need to open the unit. Up to 32 sector intensity settings and over 256 standard and custom flash codes may be selected, in addition to advanced features such as multiple day/night intensity settings and switching between internal and external photo-cells.

Sealite said that a major Australian port has installed a Sealite SL-PEL-5 sectored port entry light for day and night navigation at its terminals. In addition, they have also been installed at ports in Slovenia, Norway, Qatar, Dubai, Canada and the USA.