User manual

41
English
ALADIN SQUARE USER MANUAL
L3 information on
display
L0 information in
background
Display details
No-stop No-stop Display shows L3 no-stop time.
Level stop No-stop Display shows L3 level stop information. The white
STOP symbol appears on the display.
Level stop Decompression Display shows L3 level stop information. In addition to
the white STOP symbol, also the black DECO symbol
appears to indicate that also L0 is in decompression.
2.7.7 Display of underlying L0
decompression information
During the dive, the information displayed
is always relative to the active MB level.
However, the underlying L0 data is
available as one of the alternate information
fi elds. When pressing the right button
the appropriate number of times, the L0
information will be visible instead of the
active MB level information for 5 seconds,
after which it is replaced again by the
information relative to the active MB level.
While the L0 information is shown, the
symbol L0 appears in the middle row of
the display. This allows you to be aware of
what the maximum possible no-stop time
is or what the mandatory decompression
requirements are.
2.7.8 Cascading MB levels
When diving with an MB level, Square
carries out all calculations relating to L0 and
to all MB levels in between the currently
active one and L0. This gives the diver the
fl exibility to start with a given MB level but
to cascade down to a less conservative
level during the dive: if you start the dive
at L4 but decide not to carry out all the
required L4 stops, you can cascade down
through L3, L2, L1 all the way to L0. Only
decompression stops relating to L0 are
mandatory and must be respected at all
times, whereas the level stops calculated
by the MB levels are recommended but not
mandatory.
2.7.9 Level stop ignored/MB level
reduced
If a level stop is required and you ascend
1.5m/5ft or more above it, Square will
reduce your active MB level to the next one
compatible with the current depth. When
this happens, the new active MB level is
permanently displayed on the screen. It is
no longer possible to fi nish the dive with the
MB level set at the beginning of the dive.
When the level stop depth is the same as
the deco stop depth, ascending 1.5m/5ft
above it will cause Square to cascade
down to L0.
At the end of the dive, for fi ve minutes after
reaching the surface, the active (reduced)
MB level is shown on the display. After fi ve
minutes Square changes to surface mode
and switches back to the MB level set prior
to the dive.
2.7.10 PDI Stops
Square is equipped with the innovative
Profi le Dependent Intermediate Stops
introduced on other Uwatec dive
computers.
PDI Stop optimizes the leading
compartment off gassing with a low
gradient at depth which is calculated from
the current profi le.
After the dive profi le has reached a level
where PDI Stop is recommended the Square
shows symbol PDIS on the bottom row right
followed by the suggested stop depth.
When ascending to a PDI stop depth the
PDIS symbol starts blinking and 2 minute
down time counter starts running.