Mares Puck Air User's Guide download pdf (Page 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

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Mares Puck Air User's Guide Page 11

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