Light-For-Me 4TEC RCA head Manuel utilisateur
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User’s Manual
4TEC RCA head
Please read the following manual carefully before the first use and keep it for future reference.
Scuba diving is treated as an extreme sport and requires proper training and certification. Using scuba equipment, 3XML
Alexandra head included, by an untrained and inexperienced person without proper certification may cause health
damage and even risk of death.
Light-for-me 4TEC RCA head:
-4 x XPE diodes
-up to 1200 lumens
-light angle: 6 degrees
-18 W
-Piezo switch
-two modes of light: 30% and 100%
-made from anodised aluminium
-detachable cable
-cable length:
standard: 110cm
SideMount (custom made): up to 123cm
Before the dive
Check the head’s visual condition - see if the front glass is not chipped or broken. Check the cable - if it is cut
or damaged. Check the cable’s RCA plug - it should be clean and dry, remove any dust or sand with a clean
tissue (see photo below).
Put the head’s RCA plug into the ACCUs cable entry, press it slightly and turn
the rotating cap tightly (see photos below).
Check if the head is working by pressing the switch - make sure the torch is
not switched on for more than 2-5 seconds on the surface. Switching the light
on on the surface and using it for longer time may cause overheating of the
LEDs and lead to irreversible damage (melt the optics and deform the front
glass) and cause flooding.
Do not direct the light into yours or anyone else’s eyes.
Operating the head - to switch between the modes press firmly the Piezo
switch: first press - 30%, second press 100%, third press - off.
Attach the 4TEC head securely to your dive harness when not held in hand. Do not let the light head dangle
or be dragged on the bottom during the dive.
Do not disconnect the head from the accu when under water - this will cause flooding and irreversible
damage to the head and the inside parts.
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After the dive
Before disconnecting the head from the canister, rinse the whole set
(connected head plus accu) in fresh water. Dry the head, cable and
RCA connection point (plug and canister’s RCA port) completely
before disconnecting the RCA plug from the canister.
To disconnect the plug from the canister, turn the rotating nut in an
anti-clockwise direction and pull it firmly. Do not pull by the cable.
Immediately after disconnecting the cable’s RCA plug - dry it.
Check the visual condition of the head and cable again.
Burn time
4TEC RCA head can be powered by light-for-me ACCUs with
compatible RCA cable entry point. Burn times (given at 100% power)
depends on the battery pack and are as follows:
ACCU XS 4.4Ah: 3.5h
ACCU S 6.75Ah: 5h 20min
ACCU M 11.25Ah: 9h
ACCU L 22Ah: 17.5
ACCU 12V 18Ah: 12h
Given burn times may differ from actual burn time +/- 10%.
Given burn times are based on battery packs provided by light-for-me only.
Given burn times are based on one head connected to the ACCU.
Storage
Check the head’s condition and dry if necessary,
Store the head in a dry place.
Store the head in a way preventing accidental switch on or
disconnected from the accu (make sure the ACCU’s RCA port and
head’s RCA plug are not prone to getting wet / moisture).
Make sure the RCA plug is stored dry and clean. Remove any dirt or
mud and dry the RCA plug thoroughly.
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Troubleshooting
Manual ver. 1.2
Problem
Solution
4TEC RCA light head does not switch on.
Charge the ACCU according to the instructions
provided. Clean the ACCU’s connection port and
cable RCA plug.
One /some of the LEDs is not working.
The light head needs to be serviced. The LED is
damaged and/or burnt.
One/some of the LEDs seem to be darker than
the rest.
The light head needs to be serviced. The LED is
burnt.
The light spot of the light head seems to be
different / irregular. The light power seems to be
lower.
The light head needs to be serviced. The optics is
probably damaged due to too high temperature
inside the head (from switching the light on the
surface for too long time)
The 4TEC RCA head + accu have been
underwater without the RCA plug fully closed.
There is water in the head. The front glass is
fogged from the inside.
The set needs to be serviced, it has flooded.
The cable is damaged, torn or cut. There are
visible holes / cuts in the cable.
The light head needs to be serviced. High risk of
flooding the torch if it is immersed in water with its
cable damaged.
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