Oceanic ATOM 2.0 User manual

OCEANIC
ATOM 2.0
Operating Manual
(-r04 cover art to be placed on front/back is provided separatel )

3
CONTENTS
WARRANTY, NOTICES, DECOMPRESSION MODEL ....................................................................................................7
INITIAL ACTIVATION ........................................................................................................................................................ 8
INTRODUCTION AND GENERAL FEATURES AND DISPLAYS .................................................................................... 9
INTERACTIVE CONTROL CONSOLE ..................................................................................................................... 10
OPERATING MODE STRUCTURE ........................................................................................................................... 11
OPERATION AS A DIVE COMPUTER ...................................................................................................................... 12
PC INTERFACE ......................................................................................................................................................... 13
SYMBOLS AND ALP A NUMERIC GRAP ICS ...................................................................................................... 13
AUDIBLE ALARM ...................................................................................................................................................... 14
BACKLIG T .............................................................................................................................................................. 16
POWER SUPPLY ...................................................................................................................................................... 16
WATC FEATURES AND DISPLAYS ............................................................................................................................ 19
LOCAL DEFAULT TIME ............................................................................................................................................ 20
MAIN TIME ................................................................................................................................................................. 21
SET MAIN TIME ......................................................................................................................................................... 22
ALTERNATE TIME ..................................................................................................................................................... 25
SET ALTERNATE TIME ............................................................................................................................................. 26
COUNTDOWN TIMER ............................................................................................................................................... 27
SET COUNTDOWN TIMER ...................................................................................................................................... 28
C RONOGRAP ...................................................................................................................................................... 29
DAILY ALARM ........................................................................................................................................................... 31
SET DAILY ALARM .................................................................................................................................................... 32
DIVE COMPUTER FEATURES AND DISPLAYS ........................................................................................................... 33
BAR GRAP .............................................................................................................................................................. 34
ALP A / NUMERIC DISPLAYS ................................................................................................................................ 36
Tank Pressure Disp ay .......................................................................................................................................... 36
Depth Disp ays ...................................................................................................................................................... 36
Time and Date Disp ays ....................................................................................................................................... 37
Temperature Disp ay ............................................................................................................................................. 38

4
CONTENTS (continued)
DIVE COMPUTER SURFACE SEQUENCE AND OPERATING MODES ...................................................................... 39
SURFACE MODE ...................................................................................................................................................... 40
Norma Surface Main Disp ay ............................................................................................................................... 41
Norma Surface Main Button Operations ............................................................................................................. 43
ATOM Battery Status .......................................................................................................................................... 44
Transmitter Status .............................................................................................................................................. 45
Norma Surface Secondary Disp ay ..................................................................................................................... 45
Norma Surface A ternate Disp ay ........................................................................................................................ 46
NORMAL AND GAUGE SURFACE SET MODES .................................................................................................... 47
SET F GROUP (FO2) ................................................................................................................................................ 47
Set FO2 for NORM Nitrox Dives .......................................................................................................................... 48
Set FO2 GAS 1 ..................................................................................................................................................... 50
Set FO2 GAS 2 ..................................................................................................................................................... 51
Set FO2 GAS 3 ..................................................................................................................................................... 52
Set FO2 50% Defau t ........................................................................................................................................... 53
SET A GROUP (NORM/GAUG ALARMS) ................................................................................................................ 54
Set Audib e A arm ................................................................................................................................................. 55
Set Depth A arm ................................................................................................................................................... 56
Set EDT (E apsed Dive Time) A arm ................................................................................................................... 57
Set TLBG (Tissue Loading Bar Graph) A arm ...................................................................................................... 58
Set DTR (Dive Time Remaining) A arm ................................................................................................................ 59
Set Turn Pressure A arm (TMT1) ......................................................................................................................... 60
Set End Pressure A arm ....................................................................................................................................... 61
Set PO2 A arm ...................................................................................................................................................... 62
SET U GROUP (UTILITIES) ...................................................................................................................................... 63
Set Wet Activation ................................................................................................................................................ 64
Set Units of Measure ............................................................................................................................................ 65
Set NORM Safety Stop ......................................................................................................................................... 66
Set Conservative Factor ....................................................................................................................................... 67
Set Back ight Duration .......................................................................................................................................... 68
Set Samp ing Rate ................................................................................................................................................ 69

5
CONTENTS (continued)
Set TMT1 (Transmitter 1 Link Code) .................................................................................................................... 70
Set TMT (Transmitter) 2-3 Use ............................................................................................................................ 72
Set TMT2 (Transmitter 2 Link Code) ................................................................................................................... 73
Set TMT3 (Transmitter 3 Link Code) ................................................................................................................... 75
SERIAL NUMBER (ATOM) ........................................................................................................................................ 77
NORM (Normal Dive) PLAN MODE ......................................................................................................................... 78
FLY MODE ................................................................................................................................................................. 81
SAT MODE (NORM) .................................................................................................................................................. 82
NORM/GAUG LOG MODE ........................................................................................................................................ 83
ISTORY MODE (NORM/GAUG) ............................................................................................................................ 87
OVERVIEW OF DIVE MODE INFORMATION ............................................................................................................... 91
POSITIONING OF T E ATOM .................................................................................................................................. 93
Link Interruption Underwater ................................................................................................................................ 93
DIVE TIME REMAINING (DTR) ................................................................................................................................. 94
No Decompression Dive Time Remaining (NDC) ................................................................................................ 95
Oxygen Accumu ation Time Remaining (OTR) .................................................................................................... 96
Air Time Remaining (ATR) .................................................................................................................................... 96
Air Time Remaining A arm .................................................................................................................................... 97
VARIABLE ASCENT RATE ....................................................................................................................................... 98
ELAPSED DIVE TIME ............................................................................................................................................... 99
CONTROL OF DISPLAYS ......................................................................................................................................... 99
NORM TYPE DIVE MODES (AIR/NITROX) ................................................................................................................. 101
WET CONTACTS ..................................................................................................................................................... 102
NORM NO DECOMPRESSION DIVE MODE ......................................................................................................... 103
NORM Dive No Deco Safety Stop ..................................................................................................................... 106
DECOMPRESSION DIVE MODE ............................................................................................................................ 107
VIOLATION MODES ................................................................................................................................................ 111
IG PO2 ................................................................................................................................................................ 116
IG OXYGEN ACCUMULATION .......................................................................................................................... 117
SUMMARY OF WARNING AND ALARM MESSAGES .......................................................................................... 118

6
CONTENTS (continued)
SWITC ING GAS MIXES AND BUDDY PRESSURE C ECK ....................................................................................119
SWITC ING GAS MIXES (NORM ONLY) .............................................................................................................. 120
BUDDY PRESSURE C ECK (NORM ONLY) ......................................................................................................... 125
NORM POST DIVE MODES ......................................................................................................................................... 129
TRANSITION PERIOD ............................................................................................................................................ 130
AFTER T E TRANSITION PERIOD ....................................................................................................................... 131
GAUGE OPERATING MODE ....................................................................................................................................... 133
GAUG SURFACE DISPLAYS .................................................................................................................................. 134
GAUG DIVE DISPLAYS .......................................................................................................................................... 135
FREE DIVE OPERATING MODE ................................................................................................................................. 137
FREE SURFACE DISPLAYS ................................................................................................................................... 138
FREE COUNTDOWN TIMER (CDT) ....................................................................................................................... 140
SET FREE CDT ....................................................................................................................................................... 142
SET FREE ALARMS (EDT, FDA) ............................................................................................................................ 143
FREE DIVE DISPLAYS ............................................................................................................................................ 148
REFERENCE ................................................................................................................................................................. 153
UPLOADING SETTINGS AND DOWNLOADING DATA ........................................................................................ 154
CARE AND CLEANING ........................................................................................................................................... 156
INSPECTIONS AND SERVICE ............................................................................................................................... 156
BATTERY REPLACEMENT .................................................................................................................................... 158
INSTALLING A TRANSMITTER ON A REGULATOR ............................................................................................ 164
TRANSMITTER COMPATIBILITY WIT NITROX .................................................................................................. 164
ALTITUDE SENSING AND ADJUSTMENT ............................................................................................................ 165
C ARTS OF NO DECOMPRESSION LIMITS AT ALTITUDE ................................................................................ 166
C ART OF OXYGEN EXPOSURE LIMITS ............................................................................................................ 167
SPECIFICATIONS ................................................................................................................................................... 168
FULL DISPLAY ........................................................................................................................................................ 175
ERROR DURING A DIVE ........................................................................................................................................ 176
INSPECTION/ SERVICE RECORD ......................................................................................................................... 177

7
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. t 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 2.0 Operating Manual, Doc. No. 12-2698
© 2002 Design, 2005
San Leandro, CA USA 94577
TRADEMARK, TRADE NAME, AND SERVICE MARK NOTICE
Oceanic, the Oceanic logotype, the Oceanic 'O' symbol, ATOM, the ATOM 2.0 logo, Air Time Remaining (ATR), Diver
Replaceable Batteries, Graphic Diver nterface, 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, ust 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.

8
Beginning with firmware revision 2E, ATOM Watch/Dive Computers are placed
in a Deep Sleep mode prior to being shipped from the factor . The intent is to
extend storage life of the Batter for up to 7 ears, before the unit is initiall
placed in service.
In this mode, Date and T ime are updated as the normall would be. However,
the are not displa ed. Upon waking the ATOM up, the correct Date and
Pacific T ime will be displa ed and it will be read to operate with full functions.
To wake the ATOM up from Deep Sleep mode, simultaneousl depress the
upper/right (S) and lower/left (A) buttons for 2 to 3 seconds until the displa
comes full ON displa ing the MAIN TIME screen, then release them.
NOTE: Once the ATOM is brought out of the Deep Sleep
ode, it can only be placed back in it by the factory.
NOTICE
STORAGE and INITIAL ACTIVATION

9
WARNING: Prior to diving with the ATOM 2.0,
you ust also read and understand the Oce-
anic Dive Co puter Safety and Reference
Manual, Doc. No. 12-2262, which provides
I portant Warnings and Safety Reco enda-
tions as well as general product infor ation.
INTRODUCTION
AND
GENERAL FEATURES AND DISPLAYS

10
INTRODUCTION
Welcome to OCEANIC and thank ou for choosing the ATOM 2.0 !
It is extremel important that ou read this Operating Manual in sequence and understand
it completel before attempting to use the ATOM 2.0 as a dive computer.
It is equall important that ou read the Oceanic Dive Computer Safet and Reference
Manual (Doc. No. 12-2262) provided with our ATOM 2.0. It contains information that
ou must become familiar with prior to diving with our ATOM 2.0.
Remember that technolog is no substitute for common sense, and a dive computer onl
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 ou to select
mode options and access specific information. The are also used to link the
Transmitter(s), enter Settings, activate the Backlight, and acknowledge the Audible Alarm.
Throughout this manual the 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
M
A
S
L

11
OPERATING MODE STRUCTURE
Unless it is operating in Dive Computer mode, the ATOM will be
ON in the default WATCH MAIN TIME (home time) mode (Fig.
1), like a standard WATCH, until the Mode is changed.
The M button is used to access 4 other Modes that include
Alternate Time Mode, Countdown Timer, Chronograph (stop
watch/lap timer), and Dail Alarm. It is also used to revert to
the Local Default Time displa and access Computer Modes.
The screens of the Main Modes and Sub Modes will remain on
displa 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 displa as long as it is
running unless another Mode is accessed.
When Wet Activation is set On, the ATOM 2.0 will enter
selected Dive Mode upon descent to 5 FT (feet)/1.5 M (meters),
regardless of what operating Mode it is in.
WARNING: When Wet Activation is set OFF, the
ATOM 2.0 ust be in Dive Surface Mode
(NORM< GAUG, or FREE prior to the first dive of
a new series. Co encing a dive while in
Watch odes 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
Alternate Sequence
(at a travel location)
Alternate Time
Main Time (home)
Countdown Timer
Chronograph
Daily Alarm
Fig. 1 - MAIN TIME

12
OPERATION AS A DIVE COMPUTER
The ATOM 2.0, hereafter referred to as the ATOM, features 3
Dive Computer (DC) Operating Modes, NORM (Fig. 2A) which
is used for Air and Nitrox dives, GAUG (Fig. 2B) used for dives
in which Nitrogen-Ox gen calculations are not performed, and
FREE (Fig. 2C) used for activities that do not use SCUBA.
Entering Settings and Plan Mode are onl available in NORM
SURF Mode which also allows access to Batter /Transmitter
Status, Fl , Desat, Log, and Histor Modes. Tank Pressure is
displa ed if a Transmitter is active and Linked with the ATOM.
GAUG Mode onl allows access to Batter /Transmitter Status,
Fl , Log, and Histor Modes. It also displa s Tank Pressure.
FREE Mode onl allows access to ATOM Batter Status, Log, and
Histor Modes. It does not displa Tank Pressure.
Once a dive is made in GAUG Operating Mode, the ATOM is
locked into that Mode for 24 hours after the dive.
The ATOM also features 2 modes for use of Transmitter Pressure.
A setting allows ou to choose whether Transmitters 2 and 3 are
for our use (SELF) or for checking 1 or 2 Buddies' Tank
Pressure(s). The setting remains fixed until changed in the
NORM/GAUG SET U menu.
Fig. 2 - DC MODES
2A
2B
2C

13
PC INTERFACE
Interface with a PC is accomplished b connecting the ATOM to a PC USB Port using the
USB Interface Cable provided. The same Cable is used for Upload and Download.
The software program is on the CD provided, together with a USB Driver. The program's
Help serves as the user manual and can be printed for personal use. The Settings Upload
program is used to check the ATOM's existing Settings and for entering Time, Alarm, and
Dive Computer settings into the ATOM. The Data Download program is used to retrieve
Data that was sampled during dives and stored in the ATOM's memor .
The ATOM checks for an External Access request once ever 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. When the connection is made,
all segments of the ATOM appear on the displa until completion of the Upload or Down-
load operation.
 The ATOM reverts to the W atch Main Time screen after completion of the Upload or
Download operation, or after 2 minutes if no PC action was taken.
SYMBOLS AND ALPHA NUMERIC GRAPHICS
The upper line of digits on the LCD screen is used to conve alpha Messages such as Da
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 displa
alpha numeric graphics such as PO2 and On/Off. The FO2 setting of a selected Gas will
appear in the lower line.

14
AUDIBLE ALARM
Most warning situations that activate the Audible Alarm while operating in NORM or
GAUG Mode cause the ATOM to emit 1 beep per second for 10 seconds, or until the
situation is corrected, or it is acknowledged b momentaril pressing and releasing the S
button (less than 2 seconds). After being acknowledged and the situation corrected, the
Alarm will sound again upon reentr into the warning situation, or entr into another t pe
of warning situation.
FREE Dive Mode has its own set of Alarms which emit 3 short beeps either 1 or 3 times
which cannot be acknowledged or set Off.
A red LED Warning Light, located on the left side of the housing, is s nchronized with the
Audible Alarm. It will flash as the Audible Alarm sounds. It will turn Off when the Alarm is
acknowledged or the situation is corrected. The Audible and LED will not be active if the
Alarm is Set OFF (a group A setting).
Situations that will activate the NORM/GAUG 10 second Alarm include -
 Air T ime Remaining (ATR) at 5 minutes, then again at 0 minutes.
 Turn Pressure at the Set Point selected (Transmitter 1).
 End Pressure at the Set Point selected (active T ransmitter).
 Descent deeper than the Max Depth Set Point selected.
 Dive T ime 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 dail exposure).

15
 T issue Loading Bar Graph at the segment Set Point selected.
 NORM/GAUG Ascent Rate exceeds 60 FPM (18 MPM) when deeper than 60 FT (18
M), or 30 FPM (9 MPM) at 60 FT (18 M) and shallower.
 Loss of the active T ransmitter Link signal for more than 15 seconds during a dive.
 Entr into Decompression Mode (Deco).
 Conditional Violation (above a required Deco Stop Depth for less than 5 minutes).
 Dela ed Violation (above a required Deco Stop Depth for more than 5 minutes).
 Dela ed Violation (a Deco Stop Depth greater than 60 FT/18 M is required).
 Dela ed Violation (Maximum Operating Depth of 330 FT/100 M is exceeded).
 A Gas Switch to another tank would expose the diver to PO2 greater than 1.60 ATA.
 Watch Dail Alarm reaches time set (disabled during Dive Modes).
 Watch Mode Countdown Timer reaches 0:00.
A single short beep (which cannot be disabled) is emitted for the following -
 Upon completion of a Hot Swap batter change.
 Change from Dela ed to Full Violation 5 minutes after the dive.
3 short beeps (which cannot be disabled) are emitted for the following -
 NORM/GAUG Ascent Rate is 51 to 60 FPM (15.1 to 18 MPM) when deeper than
60 FT (18 M), or 26 to 30 FPM (7.5 to 9 MPM) at 60 FT (18 M) and shallower.
 FREE Dive Elapsed Dive T ime Alarm (3 beeps ever 30 seconds if set On).
 FREE Dive Depth Alarms 1/2/3 (set sequentiall deeper) - each 3 beeps 3 times.
 FREE Dive TLBG Alarm (Caution zone, 4 segments) - 3 beeps 3 times.
 Entr into Deco during a FREE Dive (Permanent Violation) - 3 beeps 3 times.
 Free Dive Mode Countdown Timer reaches 0:00 - each 3 beeps 3 times.

16
During the following NORM Dive situations, the 10 second continuous tone will be fol-
lowed b a 5 second stead 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 Dela ed Violation).
 Decompression requires a Ceiling Stop Depth of 70 FT/21 M 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 displa 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 esti ated Battery life.
Also, the Backlight does not operate during a Low ATOM Battery
Condition or when the ATOM is connected to a PC.
POWER SUPPLY
The ATOM (Watch) utilizes one 3 volt CR2430 Lithium Batter . When used as a Dive
Computer, the ATOM's batter should operate normall for 1 ear or 300 dive hours if 2
dives are conducted during each dive period. The ATOM checks its batter voltage ever
2 minutes during surface operation.

17
 If voltage of the ATOM decreases to the Warning level
(2.75 volts), the Batter icon will appear on Surface displa
screens (fig. 3a) as an indication that the Batter should be
changed prior to commencing a series of dives.
 If the ATOM's voltage decreases to the Alarm level (2.50
volts), the Batter icon will flash and the message CHNG >
BATT will scroll at the top of the displa (Fig. 4). Operation
will automaticall revert to Main Time Mode. The AT OM
would then onl operate in Watch modes until the Batter
becomes completel depleted.
 Low Batter Warning/Alarm conditions are not displa ed
during Dive Modes.
 If a Low Batter Condition was not displa ed prior to
starting a Dive, and a Low Batter Condition occurs during
the dive, there will be sufficient Batter power remaining to
maintain operation for the remainder of that dive.
Transmitters use one 3 volt, CR2 Lithium Batter . A Transmitter's
batter should provide normal operation for 1 ear or 300 dive
hours. Transmitters check batter voltage when the are pressur-
ized and will send a Low Batter signal to the Receiver in the
ATOM when the voltage drops below the Warning level.
 T ransmitter Low Batter Warning/Alarm conditions are onl
displa ed on Status screens that can be accessed while
viewing the NORM Surface Displa .
Fig. 4 - LOW BATTERY
ALARM
Fig. 3 - LOW BATTERY
WARNING
a

18
To check the condition of the ATOM or a Transmitter's Batter if
NORM or GAUG Mode is selected, depress the S button for 2
seconds while viewing the NORM, GAUG, or FREE Surface
Main Displa , then release it.
 As the button is depressed, the ATOM's Receiver will
activate, if in NORM or GAUG Mode.
 2 seconds later, the ATOM's Batter status will be displa ed
for 3 seconds (Fig. 5), then -
 if active and linked, T ransmitter 1's Batter status will be
displa ed for 3 seconds (Fig. 6A), then -
 if active and linked, T ransmitter 2's Batter status will be
displa ed for 3 seconds, then -
 if active and linked, T ransmitter 3's Batter status will be
displa ed for 3 seconds, then -
 the displa will then revert to Surface Mode.
 If a T ransmitter is not active and linked, the message
NotA vAil (not available) will be displa ed (Fig. 6B).
Tank Pressure (described later) will also appear on the active
Transmitters Batter Status displa s.
NOTE: If Trans itter 2-3 Use is set for BUD
(Buddy Pressure Check), Battery Status of those
Trans itters is not displayed (only Pressure).
Fig. 5 - ATOM BATT GOOD
Fig. 6B - TMT 3 BATT
(Not Avai ab e)
Fig. 6A - TMT 1 BATT LOW

19
WATCH
FEATURES AND DISPLAYS
WARNING: Prior to diving with the ATOM,
you ust also read and understand the Oce-
anic Dive Co puter Safety and Reference
Manual, Doc. No. 12-2262, which provides
I portant Warnings and Safety Reco enda-
tions as well as general product infor ation.

20
LOCAL DEFAULT TIME
Watch Main Ti e (Fig. 7) is the current Time at our home
location and is normall selected as the Local Default Time.
The normal Watch screen sequence accessed with momentar
presses (less than 2 seconds each) of the M button is -
Main T ime > Alternate T ime > Countdown T imer >
Chronograph > Dail Alarm
Watch Alternate Ti e (Fig. 8), which is set b Hour Differen-
tial, is the current Time displa ing Am (or Pm) 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 this sequence -
Alternate T ime > Main Time > Countdown Timer >
Chronograph > Dail Alarm
While viewing Alternate Time, depressing and holding the S
button for 2 seconds will replace Main Time with Alternate Time
that will then become the Local Default Time until changed.
Fig. 7 - MAIN TIME
Fig. 8 - ALTERNATE TIME
TIME for the Remote
Location wi disp ay Am
(or Pm). Loca Defau t
TIME wi not.

21
While viewing an of the Watch Mode displa s, pressing and
holding the M button for 2 seconds or if no button is pressed for
2 minutes, operation will revert to the Watch Time screen se-
lected to be the Local Default Watch Time (Main or Alternate).
MAIN TIME, information displa ed includes:
> T issue Loading Bar Graph, if an after NORM/FREE dives.
> Alarm icon - if the Dail Alarm is its set On (Fig. 9a)
> Da of the Week graphic MON (or TUE, WED, THU, FRI,
SAT, SUN), or the graphic WET (if the unit is wet).
> Batter icon - if a Low Batter Condition exists.
> Month and Da (Da and Month if set for Metric)
> Time of Da (hours, minutes, seconds*)
(*seconds appear in the middle row, Fig. 9b)
 Pressing and releasing the M button momentaril and
repeatedl (< 2 seconds each time) will step through the
Main Modes.
 Pressing and releasing the S button (< 2 seconds) will
silence and acknowledge the Dail Alarm (if set On and it
sounds).
 Pressing the L button will activate the Backlight.
 Pressing both the A and S buttons simultaneousl for 2
seconds will access the SET MAIN TIME Mode.
Fig. 9 - MAIN TIME
(24 Hour Format)
a b