Setting Bookmarks; Safety Stop Timer; Activating The Backlight; Diving With Mb Levels - Uwatec MANTIS User Manual

During a dive, the stop timer starts at
immersion. So when displayed for the first
time during the dive, the stop timer and
dive time are identical.
When displayed, the stop timer can be
stopped by pressing the -/DOWN button.
This creates a bookmark, which can
be seen in the log book using PC/Mac
interface software
When displayed and stopped, the stop
timer can be reset to zero by a press and
hold of the -/DOWN button.
4.7.1.4

Setting bookmarks

By a press and hold of the "LIGHT" button
you can set any number of bookmarks as
reminders of particular moments during the
dive. The bookmarks will appear on the
dive profile in SCUBAPRO LogTRAK.
4.7.1.5

Safety stop timer

If a minimum depth of 10m/30ft is reached
during the dive, at a depth of 5m/15ft the
safety stop timer will automatically start
a 3-minute countdown. If you go below
6.5m/20ft, the timer will disappear and
MANTIS USER MANUAL
the no-stop time is shown again. Upon
returning to 5m/15ft, the timer will start
again automatically.
4.7.1.6

Activating the backlight

To activate the backlight, press LIGHT.
The duration of the backlight is 10 seconds.
F
NOTE: The backlight is not available
BATTERY
when the
warning appears.
4.7.1.7

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 times or that observe
of decompression stops do not prevent the
formation of microbubbles in the venous
blood circulation. MANTIS is equipped
with an enhanced SCUBAPRO algorithm,
named ZH-L8 ADT MB, that has been
designed to reduce the formation of these
microbubbles.
This enhanced algorithm allows the user to
choose a level of conservatism that exceeds
the worldwide proven safety record of the
standard ZH-L8 ADT algorithm. There are
five levels of additional conservatism (or MB
levels) that can be programmed into the
MANTIS, 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 you will have either shorter
no-stop times or deeper and longer
decompression stops than when diving at
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. Both work towards reducing
the amount of microbubbles present in the
body at the end of the dive.
Please refer to the chapter Setting the
Micro Bubble level for information on
setting the MB level.
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