Technical information

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3. Meridian as a dive computer
SCUBAPRO MERIDIAN
3. Meridian as a dive computer
shallower than 6.5m/20ft and there are no
decompression obligations, you can press
–/DOWN button to restart the countdown
manually.
Safety Stop
icons
Remaining time span
(minutes / seconds)
3.11.14 Activating the backlight
To activate the backlight, press LIGHT.
The default duration of the backlight is 6
seconds, but you can set it between 4 and
60 seconds in one second increments.
The backlight is not available when the
BATTERY CHANGE warning appears.
3.11.15 Diving with MB levels
Microbubbles are tiny bubbles that can
build up inside a diver’s body during any
dive and normally dissipate naturally
during an ascent and on the surface after
a dive. Dives within no-stop time and
observance of decompression stops do
not prevent the formation of microbubbles
in the venous blood circulation. Meridian
has been equipped with an enhanced
SCUBAPRO algorithm, named ZH-L8
ADT MB, to reduce the formation of these
microbubbles.
This enhanced algorithm allows the user
to choose a level of conservatism over
and in addition to the worldwide proven
safety record of the standard ZH-L8 ADT
algorithm. There are five levels of added
conservatism (or MB levels), from L1 to L5,
with L5 being the most conservative and
L1 being just a bit more conservative than
the standard ZH-L8 ADT, here referred to
as L0.
Choosing an MB level between L1 and L5
makes the algorithm more conservative,
therefore the diver will have either shorter
no-stop times or deeper and longer
decompression stops (referred to as
level stops) than when diving with L0.
Consequently the body will either take up
less nitrogen (shorter no-stop dives) or will
be able to off-gas more before returning to
the surface (dives with level stops). Both
work towards reducing the amount of
microbubbles present in the body at the
end of the dive.
Please refer to chapter 3.3.3 Setting the
Micro Bubble level for information on
setting the MB level.