Suunto DW141 User manual

SUUNTO EON
User guide

Suunto EON Steel
User guide
i
CONTENTS
CONTENTS .........................................................................................................................I
1SAFETY....................................................................................................................1
1.1 Types of safety precautions ..........................................................................1
1.2 Safety precautions.........................................................................................1
1.3 EU, FCC and IC compliance .........................................................................1
2EON STEEL AT A GLANCE .....................................................................................3
2.1 EON Steel overview .......................................................................................3
2.2 Accessories....................................................................................................3
2.3 Buttons...........................................................................................................5
2.4 Icons ...............................................................................................................5
3GETTING STARTED .................................................................................................6
3.1 Set up EON Steel............................................................................................6
3.2 Calibrating the compass................................................................................6
3.3 Installing scratch guard.................................................................................7
3.4 Connect EON Steel to DM5............................................................................7
4BASICS.....................................................................................................................8
4.1 Main views......................................................................................................8
4.2 Menus .............................................................................................................8
4.3 Charge and monitor the battery ....................................................................9
4.4 Other.............................................................................................................10
5BEFORE DIVING ....................................................................................................11
5.1 Dive modes...................................................................................................11
5.2 Personal and altitude settings for algorithm..............................................11
5.3 Gas(es) .........................................................................................................12
5.4 Tank pressure ..............................................................................................13
5.5 User adjustable alarms................................................................................14
6DURING DIVE.........................................................................................................15
6.1 Basic dive data.............................................................................................15
6.2 Bookmark .....................................................................................................15
6.3 Ascent rate ...................................................................................................15
6.4 Safety stops and deep stops.......................................................................16
6.5 Timer.............................................................................................................17
6.6 Alarms, warnings and notifications ............................................................17
6.7 Decompression dives ..................................................................................19
6.8 Oxygen calculations ....................................................................................21
6.9 Multi-gas diving............................................................................................21

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7AFTER DIVING .......................................................................................................23
7.1 Surface & no fly time ...................................................................................23
7.2 Logbook........................................................................................................23
7.3 Dive history ..................................................................................................24
8COMPASS ..............................................................................................................25
9DM5 & MOVESCOUNT ...........................................................................................26
9.1 Downloading logs from EON Steel..............................................................26
9.2 Customizing EON Steel ...............................................................................26
9.3 Updating firmware........................................................................................26
10 SUUNTO FUSED RGBM.........................................................................................27
10.1 No decompression time...............................................................................27
10.2 Safety stop ...................................................................................................27
10.3 Deepstop ......................................................................................................27
10.4 Decompression ceiling & ascent time ........................................................27
10.5 Breaking the ceiling.....................................................................................27
11 TAKING CARE OF EON STEEL .............................................................................28
11.1 Maintenance .................................................................................................28
11.2 Maximizing battery life.................................................................................28
11.3 Replacing the battery...................................................................................28
11.4 Warranty .......................................................................................................28
11.5 Disposal of the device .................................................................................29
12 SAFETY, HANDLING & SUPPORT.........................................................................30
12.1 Important safety information.......................................................................30
12.2 Safety precautions.......................................................................................30
13 TECHNICAL INFORMATION ..................................................................................35
13.1 Technical specification................................................................................35
13.2 Suunto Fused RGBM algorithm...................................................................35
13.3 Oxygen exposure .........................................................................................35
14 INTELLECTUAL PROPERTY..................................................................................36
15 DISCLAIMERS........................................................................................................37
16 GLOSSARY ............................................................................................................38

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1 SAFETY
1.1 Types of safety precautions
WARNING: is used in connection with a procedure or situation that
may result in serious injury or death
CAUTION: is used in connection with a procedure or situation that will
result in damage to the device
NOTE: is used to emphasize important information
TIP: is used for extra tips on how to utilize the features and functions
of the device.
1.2 Safety precautions
WARNING: ONLY DIVERS TRAINED IN PROPER USE OF SCUBA
DIVING EQUIPMENT SHOULD USE A DIVE COMPUTER! No dive
computer can replace the need for proper dive training. Insufficient or
improper training may cause a diver to commit errors that may lead to
serious injury or death.
WARNING: THERE IS ALWAYS A RISK OF DECOMPRESSION
SICKNESS (DCS) FOR ANY DIVE PROFILE EVEN IF YOU FOLLOW THE
DIVE PLAN PRESCRIBED BY DIVE TABLES OR A DIVE COMPUTER. NO
PROCEDURE, DIVE COMPUTER OR DIVE TABLE WILL PREVENT THE
POSSIBILITY OF DCS OR OXYGEN TOXICITY! An individual’s
physiological make up can vary from day to day. The dive computer cannot
account for these variations. You are strongly advised to remain well within
the exposure limits provided by the instrument to minimize the risk of DCS.
As an added measure of safety, you should consult a physician regarding
your fitness before diving.
1.3 EU, FCC and IC compliance
FCC:
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation. This product has been tested to comply with
FCC standards and is intended for home or office use. FCC WARNING: Changes or
modifications not expressly approved by Suunto could void your authority to operate
this device under FCC regulations.

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IC:
Suunto EON
Model: DW141
This device complies with Industry Canada licence-exempt RSS standard(s). Operation
is subject to the following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause
undesired operation of the device.
CE:
Suunto Oy hereby declares that this heart rate belt is in compliance with the essential
requirements and other relevant provisions of Directive 1999/5/EC.

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2 EON STEEL AT A GLANCE
2.1 EON Steel overview
NOTE: If no button is pressed for 1 minute in main views, the dive
computer goes automatically to standby mode and shuts down the display to
save battery. From menus it will go back to main views after 30 seconds if
no button is pressed.
2.2 Accessories
The following accessories are included with EON Steel:
Connecting cable. Use USB cable to connect your EON Steel to computer
or charge.

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Bungee cord and adapter. Use for optional mounting of EON Steel.
Suunto CD. Use Suunto CD to find this manual and DM5 PC/Mac
compatible software.
Wireless Tank POD. Use this to get wireless tank pressure information from
your scuba tank(s). Tank POD could be purchased as a separate accessory.
EON Steel works with multiple tank PODs.

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Suunto USB power adapter. Use with USB cable to charge the EON Steel
battery. Separate accessory could be purchased from
http://www.suunto.com.
ADD PICTURE HERE
Scratch guard. Separate scratch guard could be added on top of class to
protect glass from scratches.
2.3 Buttons
THIS PICTURE COULD BE WITH EON STEEL OVERVIEW?
2.4 Icons
The icons in the display gives information about EON Steel:
Status icon
What it means
No fly time icon.
Surface (interval) time icon.
Shows the EON Steel battery level or charging status.
Number on the side of battery icon tells either how
many hours approximately device could run with this
charging level or when charging how long it will take
until battery is fully charged.

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3 GETTING STARTED
To get the most out of your EON Steel, use some time to personalize it.
EON Steel is a very user-friendly dive computer, and you will quickly
become familiar with its functions. Make absolutely sure that you know your
computer and have it set up as you want, before getting into the water.
3.1 Set up EON Steel
First connect your EON Steel to your computer USB port with PC-cable.
This will wake-up your EON Steel and you will be guided through the initial
setup.
Initial setup guides you through following steps:
Units settings.
Time format (12h/24h)
Date format (dd.mm / mm.dd)
Optionally connect with DM5
After initial setup you will be redirected to main view. With select-button you
could change the main views.
3.2 Calibrating the compass
On compass main view you need to first calibrate the compass by slowly
rotating the unit in your hand with large infinite 8 loop about 15 seconds.
When graphical compass appears you know calibration is done successfully.
NOTE: If the calibration fails several times in a row, it is possible that
you are in an area with sources of magnetism, such as large metal objects,
power lines or electric appliances. Move to another location and try to
calibrate the compass again.
NOTE: Because of changes in the surrounding magnetic field,
compass needs to be re-calibrated occasionally. During the calibration
process, the compass adjusts itself to the surrounding magnetic field . As a
basic rule, you should calibrate the compass whenever it does not seem to
operate properly.

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3.3 Installing scratch guard
Pictures here ?
3.4 Connect EON Steel to DM5
plaa

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4 BASICS
4.1 Main views
EON Steel has three main views: time/no deco, tank pressure and compass
view. Changing the views can be done by pressing the select –button.
NOTE: Main views could be fit to everyone’s personal likings (see
customization in section 9.5).
4.2 Menus
From main views menu could be entered by keeping select –button down for
2 seconds.

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Up/down –buttons could be used to scroll and select -button to go deeper in
the menu. Going backwards in the menu is done by keeping select –button
down for more than 2 secs.
NOTE: While diving only gas selection menu is available. Hence dive
settings can be done only while on surface.
4.3 Charge and monitor the battery
EON Steel has an internal lithium-ion, rechargeable battery. Charging the
battery could be done by connection EON Steel to power source with
included USB cable. As a power source use either your computer USB port
or separate power adapter accessory.
The battery icon on the upper-left corner of the display shows the battery
status. On the right of the battery icon is shown estimated dive time left in
hours.
Icon
What it means
Battery icon is white and it has estimated 27h of dive
time left before need to recharge.
Battery icon and hours in red. When estimated dive
hours becomes three (3) hours or less it is shown red
as a sign for a need to recharge.
When estimated dive hours left is less than hour, “low”
text is shown on the right of the battery icon.
When battery icon is green and animation is running on
then battery is charged.
NOTE: EON Steel won’t start diving when estimated dive hours is less
than 2 hours. Instead the device recommends you to recharge it, like
following:

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When cable is connected to charge, EON Steel informs user with the
following notification:
4.4 Other
Following are presented some useful settings/info that user could go
through.
Brightness of the display can be adjusted from the menu in path: “General
> Device settings > Brightness”.
Tones can be adjusted in menu “General > Device settings > Tones”
Info about the EON can be found on menu path “General > About EON”.
For example history of the device, software version etc…

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5 BEFORE DIVING
NOTE: EON Steel is on surface mode always, when below 1.2m/4ft.
5.1 Dive modes
As a default EON Steel has three (3) different dive modes: Nitrox, Trimix
and Gauge (bottom timer). You could pick one matching your diving. Dive
mode selection is found on menu path “Menu > Dive settings > Mode”.
NOTE: You could later customize these modes for any kind of diving
or even add additional dive modes, depending the way you dive. This is delt
later in section 9.5 (Customizing EON Steel).
Nitrox and trimix modes are intended for diving with decompression
information, like no decompression stop time or decompression
ceiling/ascent time. Decompression algorithm used in EON Steel is Suunto
Fused RGBM. You can find more info about the algorithm in section x.x.
Gauge is a bottom timer mode and thus has no decompression information
or calculation included.
NOTE: After diving in gauge mode, decompression calculation is
locked for following 48 hours. This means that if during this time nitrox or
trimix mode is selected, then their decompression calculation will not work.
5.2 Personal and altitude settings for algorithm
There are several factors that can affect your susceptibility to DCS. Such
factors vary between divers and also for the same diver from one day to
another. The personal factors which tend to increase the possibility of DCS
includes things:
cold exposure –water temperature less than 20 °C / 68 °F
below average physical fitness level
fatigue
dehydration
stress
obesity
patent foramen ovale (PFO)
exercise before or after dive
The five-step personal setting is available for adjusting algorithm
conservatism. You could find the personal setting in menu path “Menu >
Dive settings > Parameters > Personal”.
Personal level
Explanation

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More aggressive (-2)
Ideal conditions, excellent physical fitness, highly
experienced with a lot of dives in the near past.
Aggressive (-1)
Ideal conditions, good physical fitness, well
experienced with dives in the near past.
Nominal (0)
Ideal conditions.
Conservative (+1)
Some risk factors or conditions exist.
More conservative (+2)
Several risk factors or conditions exist.
Addition to personal setting EON Steel can be adjusted for diving at
altitudes. This setting will automatically adjust the decompression
calculation accordingly. Following altitudes can be set:
0 –300 m / 0 –1000 ft
300 –1500 m / 1000 –5000 ft
1500 –3000 m / 5000 –10000 ft
WARNING: Traveling to a higher altitudes can temporarily cause a
change in the equilibrium of dissolved nitrogen in the body. It is
recommended that you acclimatize to the new altitude by waiting at least
three (3) hours before diving.
5.3 Gas(es)
If nitrox or trimix diving mode is selected, then you need to set the gas(es)
for decompression algorithm to work properly. You could set the gases in
menu by selecting “Menu > Gas(es)”. On nitrox mode, gas will have only
oxygen (O2%). Trimix mode makes helium (He%) available for gas and
there’s also possible to choose multiple gases.
NOTE: When you have analyzed your gas, recommendation is not to
round-up the result when entering it for EON Steel. For example if analyzed
gas was 31.8% oxygen, then set the gas as 31%. This will make
decompression calculations more safe. Oxygen calculations (pO2, OTU,
CNS%) are also kept on safe side, since used oxygen percent for those are
O2% + 1.
NOTE: Customization makes gas menu work differently. More from it
in section x.x.
It’s important to understand how gas menu works on trimix mode, which has
possibility to make multi-gas dives. On picture below is shown picture about
the gas menu. It has three (3) gases and tx18/45 is chosen as the active

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one. Important thing here is how algorithm (Suunto Fused RGBM) calculates
the ascent time (during dive) using all these three gases.
5.4 Tank pressure
EON Steel can be used with multiple Tank PODs. To pair a tank POD it
needs to be first installed to the tank via your regulator set first phase. Open
the tank valve and see that the green LED on tank POD is flashing. After
this take the EON Steel close (5-20cm) to tank POD.
Following screen pops out on EON Steel, when it is taken close to tank
POD. Choosing to pair (listen) this tank POD, you need to choose the
correct gas and then press select button.

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On dive main views only one tank pressure is shown and corresponds to the
active gas chosen. Hence when gas is changed, the shown tank pressure is
also changed accordingly.
5.5 User adjustable alarms
There are three user configurable alarms: depth, dive time and tank
pressure alarms. These alarm settings can be found on menu path “Menu >
Dive settings > Alarms. Each of these alarms can be configured separately
on or off and set the corresponding alarm limit.

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6 DURING DIVE
NOTE: On depths greater than 1.2m/4ft EON Steel will start diving
automatically.
6.1 Basic dive data
Following display shows EON Steel tank pressure main view. It is chosen to
illustrate what a diver can see during a dive on a display:
Present depth is 19.0m
Active gas is Nitrox 32%
Dive time is 22 minutes
Tank pressure left is 120 bars
No decompression stop time is 50 minutes
Safety stop is ahead at 3.0 metres
6.2 Bookmark
bookmark TBD
6.3 Ascent rate
Left bar describes ascent rate of the diver. One bar area corresponds to
2m/min rate:
Green bar means ascent rate ok, <8m/min
When the ascent bar changes to yellow diver ascent rate is between 8 to
10m/min
If bar becomes red diver is ascending >10m/min
When maximum allowed ascent rate is broken alarm is generated.
Continuous ascent rate violations will result longer safety stop times.

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6.4 Safety stops and deep stops
A three (3) minute safety stop is always recommended for every dive over
10 meters. Safety stop is calculated down when diver is between 2.4 and 6
meters. This is presented with hourglass in front of the stop depth and
safety stop calculation is shown in format m’ss. Safety stop might
sometimes be more than 3 minutes and this is caused by too fast ascent on
a dive.
Deep stops activates when diver goes deeper than 20 meters. Deep stops
are presented like safety stops. You know you’re in the deep stop area,
when stop depth has hourglass visible and deep stop time is running.

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6.5 Timer
EON Steel has stopwatch for various timing purposes. Short up –button
press start/stops the timer. Pressing up –button for more than 2 seconds
clears the timer.
6.6 Alarms, warnings and notifications
EON Steel has alarms, warnings and notifications. They each are shown
visually on display with audible alarm (if tones are set on). Alarms requires
always immediate action from diver. Alarms are presented on first table:
Alarm
Explanation
pO2high
Partial pressure of oxygen becomes >1.6. Immediately
react to this by either ascending or change gas with
lower oxygen percentage.
pO2low
Partial pressure of oxygen is <0.18. Change
immediately to gas that has bigger oxygen percentage
or descent.
Decompression
ceiling broken
On a decompression dive, when ceiling is broken by
more than 0.6m. Descent back below ceiling depth and
continue to ascent normally.
Decompression ceiling broken alarm shown on EON Steel display.