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2.2.9
Active backlight
The display of the Aladin H can be
illuminated both on the surface and under
water. The backlight can be activated with
a press-and-hold of the left button.
The light will turn off automatically with a
default duration of 10 seconds. However,
duration can be adjusted between 2 and 12
seconds. The backlight can also be set to
"push on/push off" in which case the light
stays on until you press the button again.
To set backlight duration:
• Starting from the time of day display,
push the left or right button to get to the
dive menu screen, then press-and-hold
the right button.
• Press the right button twice to get to
the user settings screen, then press-
and-hold the right button.
• Press the right button twice to get to
the backlight duration screen, then
press-and-hold the right button.
• Press the left or right button to choose
your backlight duration or to set push
on/push off, then lock in your choice
with a press-and-hold of the right
button.
• Press-and-hold both left and right
buttons simultaneously to return to the
time of day display.
F
NOTE: Repeated activation of the
backlight will reduce battery life.
ALADIN H USER MANUAL
F
NOTE: Keeping the backlight on
permanently represents a severe
strain on the battery. In warm waters
(20°C/68°F and above), a new battery
can sustain 20 to 40 1-hour dives with
the backlight always on. In cold waters
(4°C/40°F and below) the low battery
warning may come on within the
first dive. For temperatures between
4°C/40°F and 20°C/68°F the life of
a new battery will fall somewhere
between 1 and 20 1-hour dives.
The Aladin H monitors the battery
level throughout every dive, and if
the available energy drops below the
warning threshold, the Aladin H will
automatically disable the backlight to
prevent a computer shut-down.
2.2.10
Switching off the display
From the time of day display you can
switch off the Aladin H by pressing and
holding
both
buttons
On the surface the Aladin H switches off
automatically after 3 minutes of non-use.
2.2.11
Alarm clock
The alarm clock tone works only at the
surface.
If the alarm clock is "on" the time of day
display shows the alarm clock/transmit
symbol.
When the alarm is triggered, the alarm
clock/transmit symbol flashes and special
attention beeps sound for 30 seconds or
until you press a button.
simultaneously.
13
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