33
English
ALADIN SPORT USER MANUAL
combined with the relatively high ambient
pressure, inhibits bubble growth.
It should be noted that the 4 fastest
compartments, up to 10 minutes half-
times, respectively, are not considered
for the determination of the PDI stop
depth. This is due to the fact that these
compartments are only “leading” for very
short dives, for which an intermediate stop
is not required at all.
F
NOTE: The PDI stop is not a mandatory
stop and it is NOT a substitute for the
3-5 minute safety stop at 5m/15ft.
WARNING
Even when performing a PDI stop, you still
MUST perform a safety stop at 5m/15ft for 3
to 5 minutes. Performing a 3 to 5 minute stop
at 5m/15ft at the end of any dive remains the
best thing you can do for yourself!
3.10.3 Special considerations when
diving with more than one
gas mixture (Aladin Sport)
Switching to a higher oxygen concentration
mix during the dive influences the PDI stop.
This needs to be accounted for, in line with
the predictive nature of multi-gas handling
in ZH-L16 ADT MB PMG.
When diving with more than one gas
mixture, the Aladin Sport displays the PDIS
depth according to the following rules:
• If the PDI stop calculated for the bottom
mix (gas 1) is deeper than the switch
depth, than this calculated value is
displayed.
• If the PDI stop calculated for gas 1
is shallower than the switch depth to
gas d, then the displayed PDI stop is a
function of gas d.
In case of a missed gas switch, the Aladin
Sport reverts to the PDI stop for the actively
breathed mix.
3.10.4 Diving with PDIS
F
NOTE: To use the PDIS feature, you
must enable PDIS (see chapter:
Settings
, section: Setting PDIS).
PDI Stop depth
PDIS icon
When the calculated PDI stop is deeper
than 8m/25ft, the Aladin Sport shows it on
the display and continues to do so until you
reach the displayed depth during an ascent.
The displayed value changes during the
dive as the Aladin Sport tracks the uptake
of nitrogen in the 16 compartments and
updates the PDIS depth accordingly to
reflect the optimum at all times.
The PDIS depth is shown in the lower left
corner, with the PDIS icon. During a no-
stop dive, as soon as you reach that depth
during an ascent, a 2-minute countdown
will appear in place of the no-stop value
with the label STOP. In addition, the PDIS
label will blink. You can have one of 3
situations:
PDIS completed
Normal MB level stop
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