Oceanic ATOM User manual

2
ATOM FULL LCD
Components:
a. Mode (M) Button
b. Select (S) Button
c. Light (L) Button
d. Advance (A) Button
e. LED Wa ning Light
f. Ba G aph
g. Icon - O2BG
h. Icon - Daily Ala m, o -
T ansmitte Link
i. Icon - Low Batte y
j. Icon - Ascend A ow
k. Symbol - NITROX (Mode)
l. Symbol - FT o M (Depth)
m. Symbol - PSI o BAR (P essu e)
n. Symbol - TIME
o. Symbol - FO2
p. Symbol - TOTAL ASCENT, o -
NDC (No Deco), o -
O2, o -
SURFACE
q. Icon - Descend A ow
. Symbol - DIVE TIME, o -
AIR TIME, o -
STOP TIME
s. Symbol - MAX FT, o -
MAX M
ab
c
d
e
f
g
h
i
j
k
l
m
q
p
n
o
r
Pay special attention to items marked
with this Warning symbol.
s

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CONTENTS
FULL DISPLAY ................................................................................................................................................................. 2
LIMITED TWO-YEAR WARRANTY .................................................................................................................................. 7
NOTICES ........................................................................................................................................................................... 7
DECOMPRESSION MODEL ............................................................................................................................................ 7
FCC COMPLIANCE .......................................................................................................................................................... 8
INTRODUCTION ............................................................................................................................................................... 9
INTERACTIVE CONTROL CONSOLE ...................................................................................................................... 10
OPERATING MODE STRUCTURE ........................................................................................................................... 11
PC INTERFACE ......................................................................................................................................................... 12
GENERAL FEATURES AND DISPLAYS ........................................................................................................................ 13
SYMBOLS AND ALPHA NUMERIC GRAPHICS ...................................................................................................... 1
AUDIBLE ALARM ...................................................................................................................................................... 1
BACKLIGHT .............................................................................................................................................................. 16
POWER SUPPLY ...................................................................................................................................................... 17
WATCH FEATURES ........................................................................................................................................................ 19
LOCAL DEFAULT TIME ............................................................................................................................................ 19
MAIN TIME ................................................................................................................................................................ 20
SET MAIN TIME ......................................................................................................................................................... 20
Set Hou Fo mat ................................................................................................................................................... 21
Set Hou and Minute ............................................................................................................................................ 22
Set Yea and Month .............................................................................................................................................. 23
Set Day ................................................................................................................................................................. 2
ALTERNATE TIME .................................................................................................................................................... 2
SET ALTERNATE TIME .............................................................................................................................................. 25
COUNTDOWN TIMER ............................................................................................................................................... 26
SET COUNTDOWN TIMER ....................................................................................................................................... 28
CHRONOGRAPH ....................................................................................................................................................... 29
DAILY ALARM ........................................................................................................................................................... 30
SET DAILY ALARM .................................................................................................................................................... 31
UPLOADING WATCH SETTINGS FROM A PC ........................................................................................................ 32

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CONTENTS (continued)
DIVE COMPUTER FEATURES AND DISPLAYS ........................................................................................................... 33
BAR GRAPH .............................................................................................................................................................. 3
ALPHA / NUMERIC DISPLAYS ............................................................................................................................... 36
Tank P essu e Display .......................................................................................................................................... 36
Depth Displays ..................................................................................................................................................... 36
Time and Date Displays ....................................................................................................................................... 37
Tempe atu e Display ............................................................................................................................................. 38
DIVE COMPUTER SURFACE SEQUENCE AND MODES ............................................................................................ 39
DIVE COMPUTER (DC) SURFACE MODE .............................................................................................................. 0
DC Su face Mode Main Display ........................................................................................................................... 41
Su face Mode Button Ope ations ......................................................................................................................... 42
Su face Mode Alte nate Display (O2 Data) .......................................................................................................... 42
SYSTEM STATUS ..................................................................................................................................................... 3
WET CONTACTS .......................................................................................................................................................
DIVE COMPUTER SET MODES .............................................................................................................................. 5
SET D GROUP (DIVE DATA) .................................................................................................................................... 5
Set FO2 fo Nit ox Dives ....................................................................................................................................... 46
Set FO2 GAS 1 ..................................................................................................................................................... 48
Set FO2 GAS 2 ..................................................................................................................................................... 49
Set FO2 GAS 3 ..................................................................................................................................................... 50
Set FO2 50% Default ........................................................................................................................................... 51
Set ATOM's Receive ............................................................................................................................................ 52
Set Digital Gauge Dive ......................................................................................................................................... 53
SET A GROUP (ALARMS) ........................................................................................................................................ 5
Set Audible Ala m ................................................................................................................................................. 54
Set Depth Ala m ................................................................................................................................................... 56
Set Elapsed Dive Time (EDT) Ala m ................................................................................................................... 57
Set Tissue Loading Ba G aph (TLBG) Ala m ...................................................................................................... 58
Set Dive Time Remaining (DTR) Ala m ............................................................................................................... 59
Set Tu n P essu e Ala m (TMT1) .......................................................................................................................... 60
Set End P essu e Ala m ....................................................................................................................................... 61
Set PO2 Ala m ...................................................................................................................................................... 62

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CONTENTS (continued)
SET U GROUP (UTILITIES) ...................................................................................................................................... 63
Set Wet Activation ................................................................................................................................................ 64
Set Units of Measu e ............................................................................................................................................ 65
Set Safety Stop ..................................................................................................................................................... 66
Set Conse vative Facto ....................................................................................................................................... 67
Set Backlight Du ation ......................................................................................................................................... 68
Set Sampling Rate ............................................................................................................................................... 69
Set T ansmitte 1 Link Code ................................................................................................................................ 70
Set T ansmitte 2 Link Code ............................................................................................................................... 72
Set T ansmitte 3 Link Code ............................................................................................................................... 74
SERIAL NUMBER (ATOM) ........................................................................................................................................ 76
PLAN MODE .............................................................................................................................................................. 77
FLY MODE ................................................................................................................................................................. 79
SAT MODE ................................................................................................................................................................. 80
DIVE LOG MODE ...................................................................................................................................................... 82
HISTORY MODE ........................................................................................................................................................ 85
OVERVIEW OF DISPLAY SYMBOLS AND ICONS ....................................................................................................... 86
OVERVIEW OF DIVE MODE INFORMATION ................................................................................................................ 87
POSITIONING OF THE ATOM .................................................................................................................................. 89
Link Inte uption Unde wate ................................................................................................................................ 89
DIVE TIME REMAINING ........................................................................................................................................... 90
No Decomp ession Dive Time Remaining ........................................................................................................... 90
Oxygen Accumulation Time Remaining ............................................................................................................... 91
Ai Time Remaining .............................................................................................................................................. 92
Ai Time Remaining Ala m ................................................................................................................................... 93
VARIABLE ASCENT RATE ....................................................................................................................................... 9
ELAPSED DIVE TIME ............................................................................................................................................... 95
CONTROL OF DISPLAYS ......................................................................................................................................... 96
DIVE MODES .................................................................................................................................................................. 97
NO DECOMPRESSION DIVE MODE ....................................................................................................................... 98
No Deco Safety Stop .......................................................................................................................................... 100

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CONTENTS (continued)
DECOMPRESSION DIVE MODE ........................................................................................................................... 101
VIOLATION MODES ................................................................................................................................................ 105
Conditional Violation Mode ................................................................................................................................ 105
Delayed Violation Modes ................................................................................................................................... 107
Immediate Violation and Gauge Mode .............................................................................................................. 108
HIGH PO2 ................................................................................................................................................................ 110
HIGH OXYGEN ACCUMULATION .......................................................................................................................... 111
USER SET DIGITAL GAUGE MODE ...................................................................................................................... 113
SUMMARY OF WARNING AND ALARM MESSAGES ........................................................................................... 11
SWITCHING GAS MIXES ............................................................................................................................................. 115
GAS SWITCH PREVIEW DISPLAYS ...................................................................................................................... 118
POST DIVE MODES ..................................................................................................................................................... 121
TRANSITION PERIOD ............................................................................................................................................ 122
AFTER THE TRANSITION PERIOD ....................................................................................................................... 123
Accessing othe Modes ...................................................................................................................................... 124
UPLOADING SETTINGS AND DOWNLOADING DATA ......................................................................................... 125
REFERENCE ................................................................................................................................................................ 127
CARE AND CLEANING ........................................................................................................................................... 128
INSPECTIONS AND SERVICE ............................................................................................................................... 128
BATTERY REPLACEMENT .................................................................................................................................... 130
TRANSMITTER INSTALLATION ON REGULATOR ............................................................................................... 137
TRANSMITTER COMPATIBILITY WITH NITROX .................................................................................................. 137
ALTITUDE SENSING AND ADJUSTMENT ............................................................................................................ 138
CHART OF NO DECOMPRESSION LIMITS AT ALTITUDE .................................................................................. 139
SPECIFICATIONS ......................................................................................................................................................... 1 1
CHART OF NOAA O2 LIMITS ...................................................................................................................................... 1 8
RECORDS ..................................................................................................................................................................... 1 9
OCEANIC WORLDWIDE .............................................................................................................................................. 151

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LIMITED TWO-YEAR WARRANTY
For details, refer to the Product Warranty Registration Card provided. Register on-line at www.OceanicWorldWide.com
COPYRIGHT NOTICE
This operating manual is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine readable form without prior consent in writing
from Oceanic / 2002 Design.
ATOM Operating Manual, Doc. No. 12-2489
© 2002 Design, 2003
San Leandro, Ca. USA 94577
TRADEMARK, TRADE NAME, AND SERVICE MARK NOTICE
Oceanic, the Oceanic logotype, the Oceanic 'O' symbol, ATOM, the ATOM logo, OceanGlo, Air Time Remaining
(ATR), Diver Replaceable Batteries, Graphic Diver Interface, Tissue Loading Bar Graph (TLBG), Pre Dive Planning
Sequence (PDPS), Set Point, Control Console, Turn Gas Alarm, and OceanLog are all registered and unregistered
trademarks , trade names, and service marks of Oceanic. All rights are reserved.
PATENT NOTICE
U.S. Patents have been issued, or applied for, to protect the following design features:
Air Time Remaining (U.S. Patent no. 4,586,136 and 6,543,444) and Data Sensing and Processing Device (U.S. Patent
no. 4,882,678). Set TLBG Alarm and other patents pending. User Setable Display (U.S. Patent no. 5,845,235) is
owned by Suunto Oy (Finland).
DECOMPRESSION MODEL
The programs within the ATOM simulate the absorption of nitrogen into the body by using a mathematical model. This
model is merely a way to apply a limited set of data to a large range of experiences. The ATOM dive computer model
is based upon the latest research and experiments in decompression theory. Still, using the ATOM, just as using
the U.S. Navy (or other) No Decompression Tables, is no guarantee of avoiding decompression
sickness, i.e. “the bends.” Every diver’s physiology is different, and can even vary from day to day. No machine
can predict how your body will react to a particular dive profile.

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FCC ID: MH8A
FCC COMPLIANCE:
This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: 1.) this equipment may not cause harmful interference, and 2.) this equipment must accept
any interference received, including interference that may cause undesired operation.
FCC INTERFERENCE STATEMENT:
This equipment has been tested and found to comply with the limits for an Intentional Radiator, a Class
B Digital Device, pursuant to Part 15 of FCC Rules, Title 47 of the Code of Federal Regulations. These
rules are designed to provide reasonable protection against harmful interference in a commercial or
residential installation. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful interference to radio
communications.
There is no guarantee that interference will not occur in a particular installation. If this equipment does
cause interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is con-
nected.
• Consult the dealer or an experienced radio/TV technician.
Warning: Changes or modifications to this unit not expressly approved by
Oceanic/2002 Design could void the user's authority to operate the equipment.

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WARNING: Prior to diving with the ATOM, you
must also read and understand the Oceanic
Dive Computer Safety and Reference Manual,
Doc. No. 12-2262, which provides Important
Warnings and Safety Recommendations as
well as general product information.
INTRODUCTION

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INTRODUCTION
Welcome to OCEANIC and thank you for choosing the ATOM !
It is extremely important that you read this Operating Manual in sequence and understand it
completely before attempting to use the ATOM as a dive computer.
It is equally important that you read the Oceanic Dive Computer Safety and Reference
Manual (Doc. No. 12-2262) provided with your ATOM. It contains information that you
must become familiar with prior to diving with your ATOM.
Remember that technology is no substitute for common sense, and a dive computer only
provides the person using it with data, not the knowledge to use it.
INTERACTIVE CONTROL CONSOLE
The Interactive Control Console consists of four Control Buttons that allow you to select
mode options and access specific information. They are also used to link the Transmitter(s),
enter Settings, activate the Backlight, and acknowledge the Audible Alarm.
Throughout this manual they will be referred to as the M, S, L, and A buttons.
• Upper/Left - Mode (M) button
• Upper/Right - Select (S) button
• Lower/Right - Light (L) button
• Lower/Left - Advance (A) button
ATOM
M
A >l
S >>
L*

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OPERATING MODE STRUCTURE
Unless it is operating in Dive Computer mode, the ATOM will be
On in the default MAIN TIME (home time) mode (Fig. 1), like a
standard Watch, until the Mode is changed.
The M button is used to access 5 other Modes that include
Alternate Time Mode, Countdown Timer, Chronograph (stop
watch/lap timer), Daily Alarm, and Dive Computer Surface
Mode. It is also used to revert to the Local Default Time display.
The screens of the Main Modes and Sub Modes will remain on
display until a button is pressed to access another screen or
Mode, activate a sequence, or for 2 minutes if no button is
pressed. The Chronograph remains on display as long as it is
running unless another Mode is accessed.
When Wet Activation is set On, the ATOM will enter Dive Mode
upon descent below 4 feet/1.2 meters, regardless of what
operating Mode it is in.
WARNING: When Wet Activation is set OFF, the
ATOM must be in Dive Surface Mode prior to the
first dive of a new series. Commencing a dive
while in Watch modes will not activate Dive
Mode unless Wet Activation is set ON.
Main Sequence
(while at home)
Main Time
Alternate Time
Countdown Timer
Chronograph
Daily Alarm
Dive Surface Mode
Alternate Sequence
(at a travel location)
Alternate Time
Main Time (home)
Countdown Timer
Chronograph
Daily Alarm
Dive Surface Mode
Fig. 1 - Main Time

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PC INTERFACE
Interface with a PC is accomplished by connecting the ATOM
(Watch) to a PC USB port using the USB Interface Cable pro-
vided. The same Cable is used for Upload and Download.
There are 2 software programs on the CD together with a USB
Driver and a separate User Manual that can be printed for
personal use. The Settings Upload program is a convenient
method for entering Time, Alarm, and Utility settings into the
ATOM. The Data Download program is used to retrieve Data
that was sampled during dives and stored in the ATOM's
memory.
The ATOM checks for an External Access request once every
second while in the Watch Main Time. Checks are not made if
the unit is WET. For a connection to be made, the Interface
Cable is clipped onto the ATOM's Data Port and plugged into a
PC USB Port. To establish the connection, the PC program must
be running asking RUTHERE. When the connection is made, all
segments of the ATOM appear on the display (Fig. 2) until
completion of the Upload or Download operation.
• The ATOM reverts to the Main Time screen after completion
of the Upload or Download operation, or after 2 minutes if
no PC action was taken.
Fig. 2 - PC Inte face

13
GENERAL
FEATURES AND DISPLAYS
WARNING: Prior to diving with the ATOM, you
must also read and understand the Oceanic
Dive Computer Safety and Reference Manual,
Doc. No. 12-2262, which provides Important
Warnings and Safety Recommendations as
well as general product information.

14
SYMBOLS AND ALPHA NUMERIC GRAPHICS
The upper line of digits on the LCD screen is used to convey
alpha Messages such as Day of the Week, Operating Modes,
items being Set, Gas and Transmitter identification, Altitude level,
and Alarm identification. At times, the second line is also used to
display alpha numeric graphics such as PO2 and On/Off. See
Figure 3. The FO2 setting of Air will appear in the lower line.
Symbols that appear on the various displays are described
throughout this manual and summarized on page 86.
AUDIBLE ALARM
When warning situations activate the Audible Alarm, the ATOM
will emit 1 beep per second for 10 seconds, or until the situation
is corrected, or it is acknowledged by momentarily pressing and
releasing the S button (< 2 seconds). After being acknowledged
and the situation corrected, the Alarm will sound again upon
reentry into the warning situation, or entry into another type of
warning situation.
A red LED Warning Light, located on the left side of the housing,
is synchronized with the Audible Alarm. It will flash as the
Audible Alarm sounds. It will turn off when the Alarm is acknowl-
edged or the situation is corrected. The Audible and LED will not
be active if the Alarm is Set OFF (a group A setting).
Fig. 3 - Sample Messages

15
Situations that will sound the Alarm include -
• Watch Daily Alarm reaches time set (disabled during Dive Modes).
• Watch Countdown Timer reaches 0:00.
• Air Time Remaining at 5 minutes, then again at 0 minutes.
• Air Time Remaining becomes less than No Deco and O2 Time Remaining for 1 minute.
• Turn Pressure at the Set Point selected (Transmitter 1).
• End Pressure at the Set Point selected (active Transmitter).
• Descent deeper than the Max Depth Set Point selected.
• Dive Time Remaining at the Set Point selected.
• Elapsed Dive Time at the Set Point selected.
• High PO2 of 1.60 ATA or the Set Point selected.
• High O2 of 300 OTU (single or daily exposure).
• Tissue Loading Bar Graph at the segment Set Point selected.
• Ascent Rate exceeds 60 feet/minute (18 meters/minute) when deeper than 60 feet (18
meters), or 30 feet/minute (9 meters/minute) at 60 feet (18 meters) and shallower.
• Loss of the active Transmitter Link signal for more than 15 seconds during a dive.
• Entry into Decompression Mode.
• Conditional Violation (above a required Decompression Stop Depth for less than 5
minutes).
• Delayed Violation (above a required Decompression Stop Depth for more than 5
minutes).
• Delayed Violation (a deco Stop Depth greater than 60 feet/18 meters is required).
• Delayed Violation (Maximum Operating Depth of 330 feet/100 meters is exceeded).
• Breathing has changed to another tank without a manual Gas Switch.
• A Gas Switch to another tank would expose the diver to a PO2 greater than 1.60 ATA.

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A single short beep (which cannot be disabled) is emitted for the following -
• Upon completion of a Hot Swap battery change.
• Change from Delayed to Full Violation 5 minutes after the dive.
3 short beeps (which cannot be disabled) are emitted for the following -
• Air Time Remaining becomes less than No Deco and O2 Time Remaining.
During the following situations, the 10 second continuous tone will be followed by a 5 sec-
ond steady beep that will not turn off when acknowledged -
• Ascending above a required Decompression Ceiling Stop Depth for more than 5
minutes (referred to as a Delayed Violation).
• Decompression requires a Ceiling Stop Depth of 70 feet/21 meters or deeper.
• Being on the Surface for 5 minutes after a Conditional Violation (Permanent Violation).
BACKLIGHT
To activate the Backlight - press the L button.
• The Backlight will activate and illuminate the display for button depression time* plus
the user set Duration time of 0, 5, or 10 seconds, for a maximum of 20 seconds.
(*The Backlight will turn Off if the button is held depressed for more than 10 seconds.)
• Press the button again to activate as desired.
NOTE: Extensive use of the Backlight reduces estimated Battery life.
Also, the Backlight does not operate during a Low ATOM Battery
Condition or when the ATOM is connected to a PC.

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POWER SUPPLY
The ATOM (Watch) utilizes 1 - 3 volt CR2430 Lithium Battery.
Transmitters use 1 - 3 volt, CR2 Lithium Battery. When used as a
Dive Computer, the ATOM's battery should provide over 100
dive hours of operation if 2 dives are conducted during each
dive period. The Transmitter's battery should provide over 1000
dive hours of operation.
Transmitters check battery voltage when they are pressurized and
will send a Low Battery signal to the Receiver in the ATOM when
the voltage drops below the Warning level. The ATOM checks
its battery voltage every 2 minutes during surface operation.
• If voltage of the ATOM decreases to the Warning level (2.75
volts), the Battery icon will appear (Fig. 4a) as an indication
that the Battery should be changed prior to commencing a
series of dives.
• If voltage decreases to the Alarm level (2.50 volts), the Battery
icon will flash and operation will revert to Main Time. The
ATOM would then operate in Watch modes until the Battery
becomes completely depleted.
• Battery Status cannot be checked during Dive Modes.
• If a Low Battery Condition was not displayed prior to starting
a Dive, and a Low Battery Condition occurs during the dive,
there will be sufficient Battery power remaining in the ATOM
to maintain it's operation for the remainder of that dive. Fig. 4 - Low Batte y
a

18
To check the condition of the ATOM or a Transmitter's Battery,
depress the S button for 2 seconds while in Dive Computer
Surface Mode then release it.
• As the button is depressed, the ATOM's Receiver will acti-
vate.
• 2 seconds later, the ATOM (Watch)'s Battery status will be
displayed for 3 seconds (Fig. 5), then -
• if active and linked, Transmitter 1's Battery status will be
displayed for 3 seconds, then -
• if active and linked, Transmitter 2's Battery status will be
displayed for 3 seconds (Fig. 6A), then -
• if active and linked, Transmitter 3's Battery status will be
displayed for 3 seconds, then -
• the display will then revert to Surface Mode.
• If a Transmitter is not active and linked, the message
NotAvAil (not available) will be displayed (Fig. 6B).
Tank Pressure (described later) will also appear on the active
Transmitters Battery Status displays.
Fig. 5 - Batte y Status (Good)
Fig. 6B - T ansmitte 3 Status
(Not Available)
Fig. 6A - T ansmitte 2 Batte y
Status (Low)

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WATCH FEATURES
LOCAL DEFAULT TIME
The normal screen sequence accessed with the M button is -
Main Time > Alternate Time > Countdown Timer > Chrono-
graph > Daily Alarm > Dive Computer Surface Mode .
Main Time (Fig. 7) is the current Time at your home location and
is normally selected as the Local Default Time.
Alternate Time (Fig. 8), which is set by hour differential, is the
current Time at a remote travel location. Upon arrival at the
location, Alternate Time can be interchanged with Main Time to
make it the Local Default Time while visiting the travel location.
The M button will then access the screens in the following se-
quence -
Alternate Time > Main Time > Countdown Timer > Chrono-
graph > Daily Alarm > Dive Computer Surface Mode.
While viewing Alternate Time, depressing and holding the S
button for 2 seconds will replace MainTime with Alternate Time
that will then become the Local Default Time until changed.
While viewing any of the Watch Mode displays, pressing and
holding the M button for 2 seconds or if no button is pressed for
2 minutes, the ATOM will revert to the Local Default Time screen.
Fig. 7 - Main Time
Fig. 8 - Alte nate Time

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MAIN TIME
Information includes:
> Alarm icon - if the Daily Alarm is set On (Fig. 9a)
> Day of the Week graphic MON (or TUE, WED, THU, FRI,
SAT, SUN), or the graphic WET (if the unit is wet).
> Battery icon - if a Low Battery Condition exists.
> Month and Day (Day and Month if set for Metric)
> Time of Day (hours, minutes, seconds*)
(*seconds appear in the middle row, Fig. 9b)
• Pressing and releasing the M button momentarily and repeat-
edly (< 2 seconds) will step through the Main Modes.
• Pressing and releasing the S button (< 2 seconds) will silence
and acknowledge the Daily Alarm (if set and it sounds).
• Pressing the L button will activate the Backlight.
• Pressing both the A and S buttons simultaneously for 2
seconds will access the SET MAIN TIME Mode.
SET MAIN TIME
This Mode will allow the Date and Time to be set which will also
serve as the basis for ALTERNATE TIME values.
There are 3 Time Set screens - Set Hour Format, Set Time, and Set
Date.
Fig. 9 - Main Time Wet
(24 Hou Fo mat)
a
b