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17
SL-PEL Series
Sectored Port Entry Light
FINAL SEA CHECK:
It may be necessary to make a night passage to determine if the automatic night dimming level selected
suits the port and its particular night-time background light.
This is particularly important while making the approaches to the sector light as the port’s flood light or
any nearby lighting drown the mark as they pass behind the sector light. The Harbour Master or Pilots
representative must realise that the light is adjustable and setting a high intensity to assist in long range
identification may perhaps destroy night vision at close range. It is therefore a compromise as the
operators become accustomed to this aid that intensities are not fixed in stone and adjustable.
Pilots and Masters will use their own personal marks during both day and night passages to verify the
accuracy of the new aid before they become comfortable with the new addition. In order to make the
most of the PEL, it is necessary to stand in a single position on the bridge without moving from Port to
Starboard. If it is necessary for observations to be made from another point, it is important to remember
only to observe the light from a given point to get a consistent indication of position.
SYNCHRONISATION WITH OTHER AIDS:
It may be part of the scheme to synchronise the PEL with other aids.
If an identification light on the same structure is employed it may be switched on after alignment. The
distance of vertical separation should be selected depending on its purpose.
If the identification light has a sector complimenting and extending the PEL boundaries, this should be
positioned on the centre line within 500mm vertically below the PEL.
If it is an omnidirectional light of a different colour intended to be seen separately from the sector, it
should be positioned (ideally) on the centre line, or at least between 3 and 6 metres below the sector
depending on range.
