Oceanic ATOM 2.0 User manual

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 place
in a Deep Sleep mo e prior to being shippe from the factory. The intent is to
exten storage life of the Battery for up to 7 years, before the unit is initially
place in service.
In this mo e, Date an Time are up ate as they normally woul be. However,
they are not isplaye . Upon waking the ATOM up, the correct Date an
Pacific T ime will be isplaye an it will be rea y to operate with full functions.
To wake the ATOM up from Deep Sleep mo e, simultaneously epress the
upper/right (S) an lower/left (A) buttons for 2 to 3 secon s until the isplay
comes full ON isplaying 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 an thank you for choosing the ATOM 2.0 !
It is extremely important that you rea this Operating Manual in sequence an un erstan
it completely before attempting to use the ATOM 2.0 as a ive computer.
It is equally important that you rea the Oceanic Dive Computer Safety an Reference
Manual (Doc. No. 12-2262) provi e with your ATOM 2.0. It contains information that
you must become familiar with prior to iving with your ATOM 2.0.
Remember that technology is no substitute for common sense, an a ive computer only
provi es the person using it with ata, not the knowle ge to use it.
INTERACTIVE CONTROL CONSOLE
The Interactive Control Console consists of four Control Buttons that allow you to select
mo e options an access specific information. They are also use to link the
Transmitter(s), enter Settings, activate the Backlight, an acknowle ge the Au ible Alarm.
Throughout this manual they will be referre to as the M, S, L, an A buttons.
 Upper/Left - Mo e (M) button
 Upper/Right - Select (S) button
 Lower/Right - Light (L) button
 Lower/Left - A vance (A) button
M
A
S
L

11
OPERATING MODE STRUCTURE
Unless it is operating in Dive Computer mo e, the ATOM will be
ON in the efault WATCH MAIN TIME (home time) mo e (Fig.
1), like a stan ar WATCH, until the Mo e is change .
The M button is use to access 4 other Mo es that inclu e
Alternate Time Mo e, Count own Timer, Chronograph (stop
watch/lap timer), an Daily Alarm. It is also use to revert to
the Local Default Time isplay an access Computer Mo es.
The screens of the Main Mo es an Sub Mo es will remain on
isplay until a button is presse to access another screen or
Mo e, activate a sequence, or for 2 minutes if no button is
presse . The Chronograph remains on isplay as long as it is
running unless another Mo e is accesse .
When Wet Activation is set On, the ATOM 2.0 will enter
selecte Dive Mo e upon escent to 5 FT (feet)/1.5 M (meters),
regar less of what operating Mo e 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 referre to as the ATOM, features 3
Dive Computer (DC) Operating Mo es, NORM (Fig. 2A) which
is use for Air an Nitrox ives, GAUG (Fig. 2B) use for ives
in which Nitrogen-Oxygen calculations are not performe , an
FREE (Fig. 2C) use for activities that o not use SCUBA.
Entering Settings an Plan Mo e are only available in NORM
SURF Mo e which also allows access to Battery/Transmitter
Status, Fly, Desat, Log, an History Mo es. Tank Pressure is
isplaye if a Transmitter is active an Linke with the ATOM.
GAUG Mo e only allows access to Battery/Transmitter Status,
Fly, Log, an History Mo es. It also isplays Tank Pressure.
FREE Mo e only allows access to ATOM Battery Status, Log, an
History Mo es. It oes not isplay Tank Pressure.
Once a ive is ma e in GAUG Operating Mo e, the ATOM is
locke into that Mo e for 24 hours after the ive.
The ATOM also features 2 mo es for use of Transmitter Pressure.
A setting allows you to choose whether Transmitters 2 an 3 are
for your use (SELF) or for checking 1 or 2 Bu ies' Tank
Pressure(s). The setting remains fixe until change in the
NORM/GAUG SET U menu.
Fig. 2 - DC MODES
2A
2B
2C

13
PC INTERFACE
Interface with a PC is accomplishe by connecting the ATOM to a PC USB Port using the
USB Interface Cable provi e . The same Cable is use for Uploa an Downloa .
The software program is on the CD provi e , together with a USB Driver. The program's
Help serves as the user manual an can be printe for personal use. The Settings Uploa
program is use to check the ATOM's existing Settings an for entering Time, Alarm, an
Dive Computer settings into the ATOM. The Data Downloa program is use to retrieve
Data that was sample uring ives an store in the ATOM's memory.
The ATOM checks for an External Access request once every secon while in the Watch
Main Time. Checks are not ma e if the unit is WET. For a connection to be ma e, the
Interface Cable is clippe onto the ATOM's Data Port an plugge into a PC USB Port. To
establish the connection, the PC program must be running. When the connection is ma e,
all segments of the ATOM appear on the isplay until completion of the Uploa or Down-
loa operation.
 The ATOM reverts to the W atch Main Time screen after completion of the Uploa or
Downloa operation, or after 2 minutes if no PC action was taken.
SYMBOLS AND ALPHA NUMERIC GRAPHICS
The upper line of igits on the LCD screen is use to convey alpha Messages such as Day
of the Week, Operating Mo es, items being Set, Gas an Transmitter i entification,
Altitu e level, an Alarm i entification. At times, the secon line is also use to isplay
alpha numeric graphics such as PO2 an On/Off. The FO2 setting of a selecte Gas will
appear in the lower line.

14
AUDIBLE ALARM
Most warning situations that activate the Au ible Alarm while operating in NORM or
GAUG Mo e cause the ATOM to emit 1 beep per secon for 10 secon s, or until the
situation is correcte , or it is acknowle ge by momentarily pressing an releasing the S
button (less than 2 secon s). After being acknowle ge an the situation correcte , the
Alarm will soun again upon reentry into the warning situation, or entry into another type
of warning situation.
FREE Dive Mo e has its own set of Alarms which emit 3 short beeps either 1 or 3 times
which cannot be acknowle ge or set Off.
A re LED Warning Light, locate on the left si e of the housing, is synchronize with the
Au ible Alarm. It will flash as the Au ible Alarm soun s. It will turn Off when the Alarm is
acknowle ge or the situation is correcte . The Au ible an LED will not be active if the
Alarm is Set OFF (a group A setting).
Situations that will activate the NORM/GAUG 10 secon Alarm inclu e -
 Air T ime Remaining (ATR) at 5 minutes, then again at 0 minutes.
 Turn Pressure at the Set Point selecte (Transmitter 1).
 En Pressure at the Set Point selecte (active Transmitter).
 Descent eeper than the Max Depth Set Point selecte .
 Dive T ime Remaining at the Set Point selecte .
 Elapse Dive Time at the Set Point selecte .
 High PO2 of 1.60 ATA or the Set Point selecte .
 High O2 of 300 OTU (single or aily exposure).

15
 T issue Loa ing Bar Graph at the segment Set Point selecte .
 NORM/GAUG Ascent Rate excee s 60 FPM (18 MPM) when eeper than 60 FT (18
M), or 30 FPM (9 MPM) at 60 FT (18 M) an shallower .
 Loss of the active T ransmitter Link signal for more than 15 secon s uring a ive.
 Entry into Decompression Mo e (Deco).
 Con itional Violation (above a require Deco Stop Depth for less than 5 minutes).
 Delaye Violation (above a require Deco Stop Depth for more than 5 minutes).
 Delaye Violation (a Deco Stop Depth greater than 60 FT/18 M is require ).
 Delaye Violation (Maximum Operating Depth of 330 FT/100 M is excee e ).
 A Gas Switch to another tank woul expose the iver to PO2 greater than 1.60 ATA.
 Watch Daily Alarm reaches time set ( isable uring Dive Mo es).
 Watch Mo e Count own T imer reaches 0:00.
A single short beep (which cannot be isable ) is emitte for the following -
 Upon completion of a Hot Swap battery change.
 Change from Delaye to Full Violation 5 minutes after the ive.
3 short beeps (which cannot be isable ) are emitte for the following -
 NORM/GAUG Ascent Rate is 51 to 60 FPM (15.1 to 18 MPM) when eeper than
60 FT (18 M), or 26 to 30 FPM (7.5 to 9 MPM) at 60 FT (18 M) an shallower.
 FREE Dive Elapse Dive Time Alarm (3 beeps every 30 secon s if set On).
 FREE Dive Depth Alarms 1/2/3 (set sequentially eeper) - each 3 beeps 3 times.
 FREE Dive TLBG Alarm (Caution zone, 4 segments) - 3 beeps 3 times.
 Entry into Deco uring a FREE Dive (Permanent Violation) - 3 beeps 3 times.
 Free Dive Mo e Count own Timer reaches 0:00 - each 3 beeps 3 times.

16
During the following NORM Dive situations, the 10 secon continuous tone will be fol-
lowe by a 5 secon stea y beep that will not turn off when acknowle ge -
 Ascen ing above a require Decompression Ceiling Stop Depth for more than 5
minutes (referre to as a Delaye Violation).
 Decompression requires a Ceiling Stop Depth of 70 FT/21 M or eeper.
 Being on the Surface for 5 minutes after a Con itional Violation (Permanent
Violation).
BACKLIGHT
To activate the Backlight - press the L button.
 The Backlight will activate an illuminate the isplay for button epression time* plus
the user set Duration time of 0, 5, or 10 secon s, for a maximum of 20 secon s.
(*The Backlight will turn Off if the button is hel epresse for more than 10
secon s.)
 Press the button again to activate as esire .
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 Battery. When use as a Dive
Computer, the ATOM's battery shoul operate normally for 1 year or 300 ive hours if 2
ives are con ucte uring each ive perio . The ATOM checks its battery voltage every
2 minutes uring surface operation.

17
 If voltage of the ATOM ecreases to the Warning level
(2.75 volts), the Battery icon will appear on Surface isplay
screens (fig. 3a) as an in ication that the Battery shoul be
change prior to commencing a series of ives.
 If the ATOM's voltage ecreases to the Alarm level (2.50
volts), the Battery icon will flash an the message CHNG >
BATT will scroll at the top of the isplay (Fig. 4). Operation
will automatically revert to Main Time Mo e. The ATOM
woul then only operate in Watch mo es until the Battery
becomes completely eplete .
 Low Battery Warning/Alarm con itions are not isplaye
uring Dive Mo es.
 If a Low Battery Con ition was not isplaye prior to
starting a Dive, an a Low Battery Con ition occurs uring
the ive, there will be sufficient Battery power remaining to
maintain operation for the remain er of that ive.
Transmitters use one 3 volt, CR2 Lithium Battery. A Transmitter's
battery shoul provi e normal operation for 1 year or 300 ive
hours. Transmitters check battery voltage when they are pressur-
ize an will sen a Low Battery signal to the Receiver in the
ATOM when the voltage rops below the Warning level.
 Transmitter Low Battery Warning/Alarm con itions are only
isplaye on Status screens that can be accesse while
viewing the NORM Surface Display.
Fig. 4 - LOW BATTERY
ALARM
Fig. 3 - LOW BATTERY
WARNING
a

18
To check the con ition of the ATOM or a Transmitter's Battery if
NORM or GAUG Mo e is selecte , epress the S button for 2
secon s while viewing the NORM, GAUG, or FREE Surface
Main Display, then release it.
 As the button is epresse , the ATOM's Receiver will
activate, if in NORM or GAUG Mo e.
 2 secon s later, the A TOM's Battery status will be isplaye
for 3 secon s (Fig. 5), then -
 if active an linke , Transmitter 1's Battery status will be
isplaye for 3 secon s (Fig. 6A), then -
 if active an linke , Transmitter 2's Battery status will be
isplaye for 3 secon s, then -
 if active an linke , Transmitter 3's Battery status will be
isplaye for 3 secon s, then -
 the isplay will then revert to Surface Mo e.
 If a T ransmitter is not active an linke , the message
NotA vAil (not available) will be isplaye (Fig. 6B).
Tank Pressure ( escribe later) will also appear on the active
Transmitters Battery Status isplays.
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 DISPLAY S
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 your home
location an is normally selecte as the Local Default Time.
The normal Watch screen sequence accesse with momentary
presses (less than 2 secon s each) of the M button is -
Main T ime > Alternate T ime > Count own Timer >
Chronograph > Daily Alarm
Watch Alternate Ti e (Fig. 8), which is set by Hour Differen-
tial, is the current Time isplaying Am (or Pm) at a remote travel
location. Upon arrival at the location, Alternate Time can be
interchange 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 T ime > Count own Timer >
Chronograph > Daily Alarm
While viewing Alternate Time, epressing an hol ing the S
button for 2 secon s will replace Main Time with Alternate Time
that will then become the Local Default Time until change .
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.