User`s guide

11
Puck Air prompts for a series of one-minute
Deepstops at different depths depending on
the dive profile. Thus, whenever the applicable
conditions have been met, Puck Air will
display an icon during the dive that reads
Deepstop. This indication is helpful in planning
for your Deepstop during your ascent. Near
the Deepstop depth, Puck Air will sound an
audible alarm, and the word Deepstop appears
(Figure 42).
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Fig. 42
At the indicated depth, a countdown also
appears that will show you how much time
remains in the Deepstop. There can be
more than one Deepstop during a dive. This
depends on the dive profile and on the type of
decompression (Figure 43).
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Fig. 43
NOTE
During the dive, when the button is
pressed, Puck Air will display the
estimated Deepstop required. The data
displayed during the ascent may vary as
a result of the diver’s behavior. Divers
should check this data during the ascent
for more precise information on the
estimated stop (Figure 44).
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Fig. 44
DIVE  AIR: ASCENT

WARNING
A rapid ascent increases the risk of
decompression sickness (DCS).

WARNING
Disabling the “Stop” on an uncontrolled
ascent should only be done by highly
experienced divers, who take full
responsibility for the consequences of this
action.
As soon as the depth decreases, Puck Air
activates the ascent rate control algorithm,
displaying the value both in m/min (ft/min)
and graphically; when the ascent rate exceeds
12 m/min (39 ft/ min) the bar appears with
the word “Slow.” Puck Air emits an audible
alarm that continues until the ascent rate
returns to within the maximum allowable limit
(12 m/min - 39 ft/min). At the same time that
the audible alarm is triggered, the computer
begins monitoring an “uncontrolled ascent”.
An ascent is considered “uncontrolled” when
the diver exceeds the maximum rate for a
stretch equal to at least two thirds of the depth
at which the audible alarm was triggered.
This criterion only applies to alarms triggered
below a depth of 12 m (39 ft). In case of
an uncontrolled ascent, upon surfacing
Puck Air disables the Air and Ean functions of
Dive Mode, and will only function as a timer
and depth gauge (Bottom Time).
The other operating modes remain active.
The “Stop” on uncontrolled ascent function can
be disabled in Set Data mode.
SAFETY STOP
If the maximum depth of a dive exceeds
10 meters, a “Safety Stop” is activated for the
ascent. Puck Air suggests that divers take
a 3-minute safety stop between 2.5 and 6 m
in depth (8 - 19 ft), and will display the word
“SafeStop” (Figure 45).
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Fig. 45
A timer indicates the time needed to complete
the stop. If the diver moves outside the depth
range mentioned above, the safety stop timer
is halted. When the diver re-enters the correct
depth range, the safety stop timer resumes
from where it left off. If the diver returns to
a depth below 10 m (32 ft), the “safety stop”
timer will ignore the previously aborted stop
and will start over from zero. In the case of
a decompression-stop dive, the safety stop
extends the duration of the decompression-stop
at 3 m (10 ft) by an additional 3 minutes,
displaying the safety stop information as
described previously.
DIVE  AIR: SURFACING
When the measured depth is less than 1 m (3 ft),
Puck Air considers the dive to be suspended
(“Surfacing”) and halts the dive timer. If the diver
does not return below 1.2 m (4 ft) within the next
3 minutes, Puck Air considers the dive to be
finished and records its data in the Logbook. If
the diver does re-descend within 3 minutes, the
dive continues and the dive timer resumes from
where it left off. Data displayed in Surface mode
(Figure 46):
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Fig. 46
• duration of the dive
• max depth
• icons for any mistakes made during the
dive(omitted stop, uncontrolled ascent)
• coldest logged temperature
• altitude program and level (if enabled)
• personal correction factor and level
(if enabled)
• tank pressure in bar or psi

WARNING
If an Air or Ean dive ends with an
uncontrolled ascent or an omitted stop
, Puck Air will restrict Air and Ean modes
for 24 hours and will only allow the Bottom
Time operation mode.
NOTE
The backlight function is operational in
surface mode.

WARNING
Do not fly or travel to high altitudes while
the no-fly icon remains active.
DIVE  AIR: SURFACE MODE
When Puck Air considers the dive to be
concluded, it moves from Dive mode to Time
MODE, showing the desaturation time and the
No fly icon.
In addition, Puck Air displays the icons for any
errors made during the dive (omitted stop,
uncontrolled ascent).
Press the button to display the No fly time and
the SURF Time.
Press the button to move to the Esc position.
Press and hold the button to exit this menu
and return to the main menu.
DIVE  EAN
Due to the lower percentage of nitrogen in the
breathing mix, oxygen-rich mixtures make
it possible to extend the no-decompression
limits, as compared to the same dive with air.
However, the higher oxygen content in the
mix exposes the diver to oxygen toxicity