Appendix; Flash Codes - Iridium Sealite SL-510-SA Installation & Service Manual

The Sealite SL-510-SA may be set to any of 256 IALA recommended flash settings which are user-
adjustable onsite.
Symbols
FL Flash followed by number Eg. FL 1 S, one flash every second
F Fixed
Q
Quick Flash
VQ
Very Quick Flash
OC Occulting; greater period on than off
ISO Isophase; equal period on and off
LFL
Long Flash Long
MO Morse code ( ) contains letter
For example, VQ (6) + LFL 10 S means 6 very quick flashes followed by a long flash, during a 10-second
interval.
The amount of power your lantern draws through the night depends on the duty cycle, i.e. the amount
of time on as a proportion to the timing cycle. For example, 0.5 seconds on and 4.5 seconds off equals a
10% duty cycle.
It is best to operate at the lowest duty cycle appropriate to the actual needs of the application.
Latest products and information available at www.sealite.com

Appendix

Flash Codes

SEALITE code reference is listed by number of flashes
®
For the latest version of this document visit www.sealite.com,
or email
5-9NM Stand-Alone Marine Lantern
info@sealite.com
SL-510-SA
47