MARES Puck Dive computer User Guide

User’s Guide

Dive ComputerPUCK

Puck Dive computer

TABLE OF CONTENTS•

QUICK GUIDE 2
PUCK DIVE COMPUTER 3

IMPORTANT WARNINGS 3
RESPONSIBLE DIVING PRA

HOW THE PUCK DIVE COMPUTER WORKS 4
SETTING PARAMETERS FOR THE PUCK COMPUTER 4

ADJUSTING THE WATCH: WATCHSET 4
ADJUSTING THE GENERAL DIVE PARAMETERS: SET DATA 5

JUSTING THE DIVE PARAMETERS: SET MODE 5

AD
AIR 5
EAN 6
BOTTOM TIME 6
TIME MODE 7

DIVING WITH PUCK 7

PREDIVE - AIR 7
DIVE – AIR: “NO-DECOMPRESSION” DIVE 7
DIVE – AIR: “DECOMPRESSION STOP” DIVE 7
TIME TO SURFACE (ASC TIME) 8
DECOMPRESSION STOPS 8
DEEP STOPS 8
ASCENT 8
SAFETY STOP 8

CTICES 3

SURFACING - AIR 8
SURF

ACE MODE - AIR 9
DIVE - EAN 9
CHECKING THE GENERAL DIVE P
PREDIVE - EAN 9
DIVE - EAN: “NO-DECOMPRESSION” DIVE 9
DIVE - EAN: “DECOMPRESSION STOP” DIVE 10
SURFACING – EAN 10

ACE MODE – EAN 10

SURF
DIVE - BOTTOM TIME (GAUGE) 10
SURFACE MODE – BOTTOM TIME 11
BOTTOM TIME WITH BEHAVIOR ERROR 11
LOGBOOK 11
PLANNING: SCROLLING OF NO DECOMPRESSION LIMITS 12
SYSTEM 12

FAQ 12
MAINTENANCE 12
TECHNICAL/FUNCTIONAL CHARACTERISTICS 13

TECHNICAL FEATURES 13
FUNCTIONAL CHARACTERISTICS 13

WARRANTY 13
DISPOSAL OF THE DEVICE 13

ARAMETERS 9

QUICK GUIDE•

1 Button
2 DIVE - maximum depth
3 DIVE - depth
4 DIVE - DEEP STOP depth
DIVE - decompression stop depth
5 DIVE - % CNS
6 DIVE - % oxygen
7 DIVE - no-decompression time remaining
DIVE - duration of the decompression stop
DIVE - DEEP STOP time remaining
DIVE - Minutes remaining for the safety stop
8 No-decompression dive indicator (NO DECO)
Decompression-stop diving indicator (DECO)
9 DEEP STOP Indicator
10 Decompression stop indicator
11 Total ascent time
12 Altitude level
13 "No fly" indicator
14 Low battery indicator

P

15

ersonal factor
16 Omitted stop indicator
17 Uncontrolled ascent indicator
18 % ascent speed
19 Ascent speed
20 Dive time
21 Display bar: various types of information are displayed

based on usage

2

•

PUCK DIVE COMPUTER

Congratulations!

Your new PUCK Dive Computer is the result
of the latest Mares technology, and has been
designed to guarantee maximum safety,
efficiency, reliability and long life.
Simple and easy to use, it is ideal for all types
of dives.
This manual contains all the instructions for
its use.
Mares thanks you for your choice and urges
you to always practice safe and responsible
diving.
Enjoy!

No part of this document may be reproduced,
stored in a retrieval system, or transmitted
in any form without the written permission of
Mares S.p.A.
Mares adopts a policy of continuing
improvement, and therefore reserves the right
to make changes and enhancements to any of
the products described in this manual without
notice.
Under no circumstances shall Mares be held
responsible for any loss or damage sustained
by third parties deriving from the use of this
instrument.

IMPORTANT WARNINGS

Important:
Any critical information or warnings that might
affect the performance or result in the injury
of the technician, PUCK Computer owner,
or other persons are highlighted with the
following symbols:

 CAUTION

Indicates a potentially hazardous situation
which, if not avoided, may result in minor
or moderate injury. It may also be used to
alert against unsafe practices.

 WARNING

Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.

DANGER



Indicates an imminently hazardous
situation which, if not avoided, will result in
death or serious injury.

Before diving, make sure you have read and
understood all parts of this manual.



WARNING

The PUCK computer is designed
exclusively for recreational use and is not
intended for professional applications.



WARNING

In addition to the dive computer, also use
a depth gauge, a submersible pressure
gauge, a timer or watch, and dive tables.



WARNING

Never dive alone; PUCK is no substitute
for a diving buddy.



WARNING

Do not dive if the readings on the
instrument appear irregular or unclear.



WARNING

The dive computer cannot ensure against
possible decompression sickness. The dive
computer cannot take into account the
physical conditions of the individual diver,
which may vary from one day to the next.
For your safety, have a general medical
check-up before undertaking a dive.



WARNING

Always check the battery power level
before starting the dive. Do not dive if
the icon indicates that the battery is low.
Replace the battery.



WARNING

Do not fly within 24 hours of your last
dive, and in any case wait until the PUCK
(“no fly”) indic



WARNING

Recreational divers should not dive
deeper than 40 m (130 f
this computer will continue to provide
information for compressed-air dives
deeper than 40m (130 ft.), the risk of
nitrogen narcosis and decompression
sickness (DCS) is greatly increased;
therefore this information should be
treated as only approximate.



WARNING

Never dive to depths greater than 40 m
(130 feet), and never take decompression
dives with PUCK unless you possess the
specific license (IANTD, NAUI, PADIDSAT,
PSA, SSI, TDI, etc.) for deep scuba diving to
depths of mor
understand the risks and the skills that
this type of dive requires. This type of dive
can entail a greater risk of decompression
sickness, even for the most qualified
and expert divers, and regardless of the
instrumentation or computer used. Divers
attempting these types of dives must have
completed a specialist course and gained
the necessary experience.

The safety of a dive can only be increased
through adequate preparation and training.
Mares therefore recommends using the dive
computer only after having completed a
specialist diver training course.

Mares recommends scrupulous adherence to
the simple rules of behavior listed below:

ation disappears.

eet). Although

e than 40 m (130 ft) and fully

RESPONSIBLE DIVING PRACTICES

• Always plan your dives in advance.

• Never exceed the limits of your skill and
experience.

• Go to your deepest planned depth at the
beginning of the dive.

• Check your computer frequently during the dive.

• Comply with the ascent rate indicated by the
computer.

• Always do a safety stop between -6 and

-3 meters (-20 and -10 feet) for at least
3 minutes.

• After any decompression stops, ascend very
slowly to the surface.

void yo-yo dives (repeatedly ascending and

• A
descending underwater).

• A

void strenuous activity during the dive and

for half an hour after surfacing.

• When diving in cold water or after intense
exertion, start ascending well before
reaching the no-decompression limits.

• In the case of a decompression dive, prolong
the decompression stop nearest the surface
for safety.

• Repetitiv
surface interval of at least 2 hours.

• Your deepest dive should be the first one of
the day.

• A
cleared from the preceding day’s dive.

• When doing repetitive dives for several
consecutive days, take at least one day
off from diving every week. In the case
of decompression-stop diving, it is
recommended to take one day off from
diving every three days.

• Avoid decompression-stop dives and do not
dive deeper than 40 meters (130 ft) unless
you have been specifically trained in this
type of technical diving.

• Avoid repetitive “square profile” dives (dives to
a single depth) deeper than 18 meters (60 ft).

• Always wait at least 12 hours, and preferably
24 hours, after a dive before flying,
in accordance with the recommendations of
the Divers Alert Network (DAN).

e dives should be separated by a

void diving until the computer memory has

3

Puck Dive computer

HOW THE PUCK DIVE COMPUTER

•
WORKS

Press the button to switch on PUCK, which
starts in PREDIVE - AIR mode (Figure 1).

Fig. 1

Press the button to scroll through the main
menu, which offers 9 operating modes
(Figure 2).

• PREDIVE

• SET MODE

• SET DATA

• TIME

• WATCHSET

• PC

• LOGBOOK

• PLANNING

• SYSTEM

If a low charge level is detected (BATT LO 1
), the battery icon turns on and the display
backlight function is disabled (Figure 3).

Fig. 3

When the icon first appears, replace the
battery as soon as possible.

If the level reaches the minimum level
(BA

TT LO 2), all the PUCK functions will be
disabled, and only SYSTEM mode can be
accessed.



WARNING

When the computer has not been used
for a long time, we recommend that you
check the battery power, and replace it if
necessary.

BACKLIGHTING

Pressing the button for 4 seconds will
temporarily turn on the backlight (for about
4 seconds).

When the backlight is on, pressing the button will
prolong illumination of the display.



WARNING

Temperature can noticeably affect battery
voltage.
The icon that signals a low battery level
may appear due to low temperatures, even
if the battery still has sufficient capacity. In

this case, backlighting is disabled.

If backlighting has been disabled due to low
temperature, you can repeat the battery status
check by entering SYSTEM mode.

If the battery icon disappears, the backlighting
function has been re-enabled.



WARNING

We advise that you replace the battery if
you intend to dive in cold water.

• ADJ TIME

- Time

- Watch display (12h-24h)

- Date

• CONTRAST

- Display contrast

• KEY BEEP

- Enable/disable the beep that sounds
when the button is pressed

Scroll through the main menu and move to
WATCHSET.
To enter the WATCHSET menu, press and hold
the button. The words ADJ TIME will appear.

W

ATCHSET  ADJ TIME

When the words ADJ TIME appear, press and
hold the button.
The minutes number will flash.
Press the button to increase the minutes.
Press and hold the button to save the current
minutes value.
The hour number will flash.
Change and set the number using the same
procedure as for the minutes.
In sequence, the other information displayed
is:

• Minutes

• Hour

• Time Format

• Year

• Month

• Day
Setting the day returns you to the ADJ TIME

menu. Press the button to move to the
CONTRAST menu.

W

ATCHSET  CONTRAST

Press and hold the button to enter this mode.
The current contrast value will flash. Press
the button to increase the contrast (maximum
value 15).
Press and hold the button to select the desired
value.

WATCHSET  KEY BEEP

Press and hold the button to enter this mode.
The current value, ON or OFF, will flash.
Press the button to change your selection.
Press and hold the button to confirm your
selection.
Press the button to move to the ESC position

Figure 4).

(

Fig. 2

The buttons follow the same logic in all
operating modes:

• Press and release to scroll through the
menu items.

• Holding down the button for approximately
2 seconds will enter a specific menu or
confirm the selections you have made.

CHECK THE BATTERY POWER LEVEL

PUCK will periodically check the battery power
level; you can view an indicator in SYSTEM
mode.
There are three power levels:

• BA

TT OK

• BATT LO 1

• BATT LO 2

4

AUTOMATIC SWITCHOFF

If PUCK is turned on but no button is pressed
for a certain period of time, it will turn off
automatically. The delay before automatic
switch-off varies depending on the current
operating mode.

•

SETTING PARAMETERS FOR

THE PUCK COMPUTER

ADJUSTING THE WATCH

:

WATCHSET

The WATCHSET menu is divided into three
submenus, where you can adjust the following
parameters:

Fig. 4

Press the button to return to the WATCHSET
menu.
Press and hold the button to exit this menu
and return to the main menu.

NOTE

The ESC position is available in all menus.
When you are in this position, if you press
the button, it takes you to the beginning of
the current menu.
If you press and hold the button, it will exit
the current menu and go back to the main
menu.

ADJUSTING THE GENERAL DIVE
PARAMETERS: SET DATA

In this menu you can adjust the general dive
parameters selected.

• SALT / FRESHWATER

• METERS – DEGREES CELSIUS / FEET –
DEGREES FAHRENHEIT

• CLEAR RESIDUAL NITROGEN

Scroll through the main menu and move to
SET DATA.
To enter the SET DATA menu, press and hold
the button. Either FRESH or SALT will appear.

SET DATA  FRESH / SALT

To ensure maximum accuracy, you need to
set PUCK for either fresh water (“Fresh”)
or seawater (“Salt”) as appropriate. Check
this setting often, especially if you use the
instrument in a variety of environments (lake,
sea, swimming pool).
Press and hold the button to enter change
settings mode.
Press the button to select the desired mode.
Press and hold the button to confirm your
selection.
Press the button to move to the next selection.



WARNING

Before diving, make sure you have
correctly set the units of measurement. An
incorrect setting may give rise to confusion
during the dive, and hence to underwater
behavior errors.

SET DATA  °C METERS / °F FEET

You can select the units of measure to use:
metric (°C and m) or Imperial (°F and ft).
Press and hold the button to enter change
settings mode.
Press the button to select the desired unit of
measure.
Press and hold the button to confirm your
selection.
Press the button to move to the next selection.

SET DATA - DELETE TISSUE



WARNING

This option is intended only for highly
experienced divers. Users who clear the
residual nitrogen memory cannot use the
instrument for repetitive dives. After this
operation, do not dive with PUCK if you
have already dived within the previous

s.

24 hour

Use this function to clear the residual nitrogen
memory.

In Set DATA mode, display the word DELETE
(

Figure 5).

Fig. 5

Press and hold to enter; the word NO will
begin to flash.
Press the button to change the selection.
To clear the residual nitrogen memory in the
tissue compartments, press and hold when the
word “YES” appears.
If you do not want to clear the residual nitrogen
memory in the tissue compartments, press
and hold when the word “NO” is displayed.

Press the button to move to the ESC position.
Press and hold the button to exit this menu
and return to the main menu.

ADJUSTING THE DIVE
PARAMETERS: SET MODE

In SET MODE you can define the specific
parameters for the type of dive you intend to
take.
When “SET MODE” appears, press and hold to
enter that menu.
The current setting will be displayed:

• AIR

• EAN

• BOTTOM TIME
At this point you can choose to keep the

current dive mode or select another.
Press and hold to change the desired dive type.

The last operating mode will begin to flash
(

Figure 6).

Fig. 6

Press the button to scroll through the 3 dive
mode options (Figure 7).

Fig. 7

When the dive type you want is displayed,
press and hold the button. This will save the
selected mode. Press the button to move to
subsequent settings.

NOTE

If you have completed an EAN dive and
wish to do a repetitive dive with air, set the
computer for “EAN” with O2 at 21%. By so
doing, the calculation of the %CNS will
remain active.

AIR

In this mode you can set:

• Personal Correction Factor

• Fast Asc (Uncontrolled ascent)

• Altitude

• Audible alarms

SET AIR  PERSONAL CORRECTION FACTOR

PUCK allows you to set an additional personal
safety factor to make the computer more
conservative. The correction factor should be
used by inexperienced divers, for strenuous
dives or when diving after a prolonged period
of inactivity. The PF 0 program introduces no
additional margin of safety. When activated,
the current personal correction factor will be

ed. This can be PF0, PF1, or PF2.

display
To change the desired value, press and hold

w

hen the letters PF appear (Figure 8).

Fig. 8

The number next to PF will flash.
If the value selected is PF1 or PF2, an icon will

appear that will remain visible during the dive
to indicate that the personal correction factor
is enabl

ed and at what level (Figure 9).

Fig. 9

Press the button to select the desired safety
factor.
Press and hold the button to record your
selection and move to the next setting.

SET AIR  FAST ASC

This function enables or disables the “Stop”
function in case of uncontrolled ascent, to
prevent the dive computer from locking
out after a rapid ascent. The feature can be
useful for instructors who need to practice
emergency ascents.
Press and hold the button if you wish to change
this setting (Figur

e 10).

5