Casio 2991 User manual

1
Operation Guide 2991
MA0604-EB
About This Manual
•Depending on the model of your watch, display text
appears either as dark figures on a light background or
light figures on a dark background. All sample displays
in this manual are shown using dark figures on a light
background.
•Button operations are indicated using the letters shown
in the illustration.
•Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the “Reference” section.
General Guide
•Press Cto change from mode to mode.
•In any mode (except when a setting screen is on the display), press Bto illuminate
the display.
Timekeeping
Use the Timekeeping Mode to set and view the current
time and date.
Read This Before You Set the Time and Date !
The times displayed in the Timekeeping Mode and World
Time Mode are linked. Because of this, make sure you
select a Home Time zone before you set the time and
date.
Timekeeping Mode Stopwatch Mode Preset Timer Mode Alarm ModeWorld Time ModeCountdown Timer Mode
Press .
Hour : Minutes
Day of week
PM indicator
Seconds
Month – Day
To set the time and date
1. In the Timekeeping Mode, hold down Auntil the
seconds start to flash, which indicates the setting
screen.
2. Press Cto move the flashing in the sequence shown
below to select other settings.
•For details about time zones, see the “City Code Table”.
•See “Daylight Saving Time (DST)”for details about DST setting.
4. Press Ato exit the setting screen.
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
To toggle the Timekeeping Mode time between DST and Standard Time
1. In the Timekeeping Mode, hold down Auntil the
seconds start to flash, which indicates the setting
screen.
2. Press Cto display the DST setting screen.
3. Press Dto toggle between Daylight Saving Time
(ON displayed) and Standard Time (OFF displayed).
4. Press Ato exit the setting screen.
•The DST indicator appears on the display to indicate
that Daylight Saving Time is turned on.
Seconds City Code Hour
Year MinutesDay
DST
Month
3. When the setting you want to change is flashing, use Dand Bto change it as
described below.
Screen
50
OFF
P
10:58
6-30
To do this:
Reset the seconds to 00
Toggle between Daylight Saving Time (ON)
and Standard Time (OFF)
Change the city code
Change the hour or minutes
Change the year
Change the month or day
Do this:
Press D.
Press D.
Use D(east) and B(west).
Use D(+) and B(–).
DST indicator
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press Dto toggle between 12-hour timekeeping and
24-hour timekeeping.
•With the 12-hour format, the P(PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 p.m. and no indicator appears to the left of the
hour digits for times in the range of midnight to 11:59 a.m.
•With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
•The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
•The Pindicator is not displayed when the current time is displayed in other modes.
Stopwatch
The stopwatch lets you measure elapsed time. The upper
display and lower display can be used for official timing of
an event or game.
•The measurement range of the upper display is
59 minutes 59 seconds.
•The measurement range of the lower display is
99 minutes 59 seconds.
•The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
•The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
•All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
Minutes' Seconds
*Press Dto pause and
restart elapsed time
measurement.
Minutes' Seconds''
*This time measurement cannot be
paused.
It shows the total elapsed time
since the timing operation started.
Elapsed Time Screen
* This time measurement (1/100
second) cannot be paused.
To measure times with the stopwatch
Elapsed Time
Start Stop*1Re-start
Hold down
Stop*1Clear
*1 Elapsed time measurement in the lower display continues.
Using the Watch to Officially Time a Sporting
If you set a game or event time, the watch will sound an alarm when the time in the
lower display reaches that time.
If the event is interrupted for some reason, you can press Dto pause and restart
timing in the upper display. The lower display shows the total elapsed time since the
start of the timing operation. You can calculate the total amount of time that play was
interrupted (lost time or injury time) by subtracting the upper display time from the
lower display time.
Current time
Initial Stopwatch Mode
Screen

2
Operation Guide 2991
To set the event time
1. In the Stopwatch Mode, Hold down Auntil current
event time setting starts to flash in the lower display.
This is the setting screen.
•If the current event time is not displayed, use the
procedure under “To reset elapsed time to zero”to
display it.
2. While a setting is flashing, use D(+) and B(–) to
change it.
•You can set the event time in the range of 1 minute to
60 minutes, in 1-minute units.
•“xx”indicates there is no event time set.
3. Press Ato exit the setting screen.
Preset Timer
The watch includes a number of different preset time
that you can select for the countdown start time.
An alarm sounds when the countdown reaches zero.
•The following are the preset start times, all in minutes:
10, 12, 15, 20, 25, 30, 35, 40, 45.
•You can also select auto-repeat, which automatically
restarts you set whenever zero is reached.
•All of the operations in this section are performed in the
Preset Timer Mode, which you enter by pressing C.
Current time
Preset timer time
To perform a preset timer operation
1. In the Preset Timer Mode, use Ato scroll through the
preset times until the one you want to use is displayed.
10 minutes 12 minutes 15 minutes 20 minutes
25 minutes
30 minutes45 minutes 40 minutes 35 minutes
•To turn on auto-repeat, hold down Awhile a start time
selection screen is displayed. The number of repeats
will appear above the timer time.
•Frequent use of auto-repeat and the alarm can run
down battery power.
Auto-repeat on indicator
Number of repeats
2. Press Dto start the countdown timer.
•Press Dwhile a countdown operation is in progress
to pause it. Press Dagain to resume the countdown.
•When the end of the countdown is reached, the alarm sounds for 10 seconds or until
you stop it by pressing any button.
•When the end of the countdown is reached while auto-repeat is turned off, the watch
will go into an elapsed time operation and display how much time has elapsed since
the end of the countdown was reached. The elapsed time operation will stop
automatically when it reaches 60 minutes. At that time the countdown timer start
time selection screen will appear.
•When the end of the countdown is reached while auto-repeat is turned on, a new
countdown starts for the preset start time. The number of repeats is displayed above
the timer time. The number of repeats display changes to “xx”when the count
reaches 100.
•To completely stop a countdown operation, first pause it (by pressing D), and then
press A. This will display the initial Preset Timer Mode screen.
Countdown Timer
With the countdown timer, you can set up to nine start
times, which are counted down in sequence one after the
other.
The countdown timer can be used for interval training (for
example, three minutes running , 1 minute rest ,
five minutes running ) or for timing an multi-period
event (for example, 45 minutes of play , 15 minutes
rest , 45 minutes play ).
•The watch beeps when any timer reaches zero.
•An alarm sounds for about five seconds when the last
countdown timer reaches zero.
•You can turn on an auto-repeat feature that restarts the
timer sequence from the beginning when the end of the
last timer is reached.
•All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C.
To configure countdown timer settings
1. In the Countdown Timer Mode, hold down Auntil the
countdown number starts to flash.
This is the setting screen.
2. Use Dand Bto scroll through the countdown
numbers until the one you want to set is displayed.
Current time
Start time
(Minutes' Seconds")
Countdown timer number
3. Press Cto move the flashing in the sequence shown below to select other
settings.
MinutesCountdown Timer numbers Seconds Auto-repeat
4. While a setting is flashing, use Dand Bto change it as described below.
•Any timer whose start time is 00'00''will not be used during the countdown timer
operation.
•There is no auto-repeat for individual countdown timers. In the Countdown Timer
Mode, auto-repeat repeats the entire set of timers.
5. Set the times of all of the timers that you want.
6. Press Ato exit the setting screen.
•When auto-repeat is turned on, the number of repeats
will appear above the timer time.
•Frequent use of auto-repeat and the alarm can run
down battery power.
Screen
03'00''
03'00''
To do this:
Change the numbers
Change the minutes
Change the seconds (5-second units)
Toggle auto-repeat off ( ) and on ( )
Do this:
Use D(+) and B(–).
Use D(+) and B(–).
Use D(+) and B(–).
Press D.
Number of repeats
Auto-repeat on indicator
To perform a countdown timer operation
In the Countdown Timer Mode, press Dto start the countdown timer.
•To pause a countdown timer operation, press D. Press Dagain to restart.
•While auto-repeat is turned off, the watch beeps when each countdown timer
reaches zero. An alarm will sound for about five seconds when the final countdown
timer reaches zero.
•While auto-repeat is turned on, the watch beeps when each countdown timer
reaches zero. An alarm will sound for about five seconds when the final countdown
timer reaches zero. The timing restarts from the first timer when the final countdown
timer reaches zero. The number of repeats is displayed above the timer time. The
number of repeats display changes to “xx”when the count reaches 100.
•An ongoing countdown timer operation continues to be performed even if you exit
the Countdown Timer Mode.
•To stop the countdown timer, first press Dto pause it, and then press A. This
returns the countdown time to its starting value.
World Time
World Time shows the current time in 48 cities (29 time
zones) around the world.
•When you enter the World Time Mode, the data you
were viewing when you last exited the mode appears
first.
•All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
To view the time for another city code
In the World Time Mode, press Dto scroll eastwardly
through city codes.
•For full information about city codes, see the “City Code
Table”.
•If the current time for a city is wrong, check your
Timekeeping Mode time and time zone settings and
make necessary changes.
Current time in the zone
of the selected city code
Timekeeping Mode time
City code
To start timing at the beginning of an event
When the current time in the lower display reaches the event start time, press Dto
start timing.
•This will display elapsed time measurement in the upper and lower displays.
To pause timing
1. Press D.
This stops elapsed time measurement in the upper display.
•Elapsed time measurement in the lower display continues.
2. To restart elapsed time measurement in the upper display, press Dagain.
When the preset event time is reached
•The watch will sound an alarm when the elapsed time measurement in the lower
display (total elapsed time since timing started) reaches the preset event time.
•Elapsed time measurement continues to be performed even after the preset event
time is reached.
To reset elapsed time to zero
1. Press D. This stops elapsed time measurement in the upper display.
•Elapsed time measurement in the lower display continues.
2. Hold down Auntil the initial Stopwatch Mode screen appears.

3
Operation Guide 2991
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use Dto display the city code
(time zone) whose Standard Time/Daylight Saving Time
setting you want to change.
2. Hold down Afor about one second to toggle Daylight
Saving Time (DST displayed) and Standard Time (DST
not displayed).
•The DST indicator is on the display whenever you
display a city code for which Daylight Saving Time is
turned on.
•Note that the DST/Standard Time setting affects only the
currently displayed city code. Other city codes are not
affected.
Alarm
When the Daily Alarm is turned on, the alarm sounds for
10 seconds at the preset time each day. When the Hourly
Time Signal is turned on, the watch beeps every hour on
the hour.
•All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
To set the alarm time
1. Hold down Awhile in the Alarm Mode until the hour
digits start to flash on the display. The hour digits flash
because they are selected.
•This operation automatically turns on the alarm.
DST indicator
Hourly time signal
on indicator
Current time
Alarm on indicator
Alarm time (Hour : Minutes)
2. Press Cto change the selection in the following sequence.
Hour Minutes
3. While a setting is flashing, use Dand Bto change it as described below.
4. After you set the alarm time, press Ato return to the Alarm Mode.
To stop the alarm
Press any button to stop the alarm after it starts to sound.
To switch the Daily Alarm and Hourly Time Signal on and off
Press Dwhile in the Alarm Mode to change the status of the Daily Alarm and Hourly
Time Signal in the following sequence.
Hourly Time
Signal only
Daily Alarm
only
Both offBoth on
To test the alarm
Hold down Dwhile in the Alarm Mode to sound the alarm.
Screen
12:00
To do this:
Change the hour and minutes
Do this:
Use D(+) and B(–).
•With the 12-hour format, set the time
correctly as a.m. or p.m. (Pindicator).
Illumination
This watch has an EL (electro-luminescent) panel that
causes the entire display to glow for easy reading in the
dark. The watch’s auto light switch turns on illumination
automatically when you angle the watch for reading
towards your face.
•The auto light switch must be turned on (indicated by
the auto light switch indicator) for it to operate.
•See “Illumination Precautions”for more important
information.
Warning!
•Always make sure you are in a safe place whenever you are reading the watch
using the auto light switch. Be especially careful when running or engaged in
any other activity that can result in accident or injury. Also take care that
sudden illumination by the auto light switch does not startle or distract others
around you.
•When you are wearing the watch, make sure that its auto light switch is turned
off before riding on a bicycle or operating a motorcycle or any other motor
vehicle. Sudden and unintended operation of the auto light switch can create
a distraction, which can result in a traffic accident and serious personal injury.
To turn the auto light switch on and off
In the Timekeeping Mode, hold down Bfor about three seconds to toggle the auto
light switch on (auto light switch indicator displayed) or off (auto light switch indicator
not displayed).
•The auto light switch indicator is on the display in all modes while the auto light
switch is turned on.
•In order to protect against running down the battery, the auto light switch turns off
automatically approximately six hours after you turn it on.
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Button Operation Tone The button operation tone sounds any time you press one
of the watch’s buttons. You can turn the button operation
tone on or off as desired.
•Even if you turn off the button operation tone, the
alarms, the Hourly Time Signal, the countdown alarm,
and the event timer alarm all operate normally.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the
display), hold down Cto toggle the button operation tone
on ( not displayed) and off ( displayed).
•Holding down Cto turn the button operation tone on or off also causes the watch’s
current mode to change.
•is displayed in all modes when the button operation tone is turned off.
Scrolling
The Band Dbuttons are used in various modes and setting screens to scroll
through data on the display. In most cases, holding down these buttons during a scroll
operation scrolls at high speed. This is true except when the countdown number is
flashing on the Countdown Timer Mode screen.
Auto Return Features
•If you leave the watch in the Alarm Mode for two or three minutes without performing
any operation, it changes to the Timekeeping Mode automatically.
•If you leave a screen with flashing digits on the display for two or three minutes
without performing any operation, the watch exits the setting screen automatically.
Timekeeping
•Resetting the seconds to 00 while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to 00 without changing the minutes.
•The year can be set in the range of 2000 to 2099.
•The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except after you have the watch’s battery replaced.
World Time
•The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
•All World Time Mode times are calculated from the current Home City time in the
Timekeeping Mode using UTC time differential values.
•The UTC differential is a value that indicates the time difference between a
reference point in Greenwich, England and the time zone where a city is located.
•The letters “UTC”is the abbreviation for “Universal Time Coordinated”, which is the
world-wide scientific standard of timekeeping. It is based upon carefully maintained
atomic (cesium) clocks that keep time accurately to within microseconds. Leap
seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s
rotation.
Illumination Precautions
•The electro-luminescent panel that provides illumination loses power after very long
use.
•Illumination may be hard to see when viewed under direct sunlight.
•The watch may emit an audible sound whenever the display is illuminated. This is
due to vibration of the EL panel used for illumination, and does not indicate
malfunction.
•Illumination turns off automatically whenever an alarm sounds.
•Frequent use of illumination runs down the battery.
Auto light switch precautions
•Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light
switch to operate when it is not needed, which shortens battery life. If you want to
wear the watch on the inside of your wrist, turn off the auto light switch feature.
•Illumination may not turn on if the face of the watch is
more than 15 degrees above or below parallel. Make
sure that the back of your hand is parallel to the ground.
•Illumination turns off in about one seconds, even if you
keep the watch pointed towards your face.
•Static electricity or magnetic force can interfere with
proper operation of the auto light switch. If illumination
does not turn on, try moving the watch back to the
starting position (parallel with the ground) and then tilt it
back towards you again. If this does not work, drop your
arm all the way down so it hangs at your side, and then
bring it back up again.
•Under certain conditions, illumination may not turn on until about one second after
you turn the face of the watch towards you. This does not necessarily indicate
malfunction of the auto light switch.
•You may notice a very faint clicking sound coming from the watch when it is shaken
back and forth. This sound is caused by mechanical operation of the auto light
switch, and does not indicate a problem with the watch.
Auto light switch indicator
To illuminate the display
In any mode, press Bto turn on illumination.
•The above operation turns on illumination regardless of the current auto light switch
setting.
About the Auto Light Switch
While the auto light switch is enabled, illumination turns on whenever you position
your wrist as described below in any mode.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you at more than 40 degrees causes illumination to turn on.
• Wear the watch on the outside of your wrist.
Parallel to ground More than 40 °

4
Operation Guide 2991
Pago Pago
Honolulu
Anchorage
Vancouver
San Francisco
Los Angeles
Denver
Mexico City
Chicago
Miami
New York
Caracas
St. Johns
Rio De Janeiro
Praia
Lisbon
London
Barcelona
Paris
Milan
Rome
Berlin
Athens
Johannesburg
Istanbul
Cairo
Jerusalem
Moscow
Jeddah
Tehran
Dubai
Kabul
Karachi
Male
Delhi
Dhaka
Yangon
Bangkok
Singapore
Hong Kong
Beijing
Seoul
Tokyo
Adelaide
Guam
Sydney
Noumea
Wellington
–11.0
–10.0
–09.0
–08.0
–07.0
–06.0
–05.0
–04.0
–03.5
–03.0
–01.0
+00.0
+01.0
+02.0
+03.0
+03.5
+04.0
+04.5
+05.0
+05.5
+06.0
+06.5
+07.0
+08.0
+09.0
+09.5
+10.0
+11.0
+12.0
Papeete
Nome
Las Vegas, Seattle/Tacoma, Dawson City
El Paso, Edmonton
Winnipeg, Houston, Dallas/Fort Worth, New Orleans
Montreal, Detroit, Boston, Panama City, Havana, Lima,
Bogota
La Paz, Santiago, Port Of Spain
Sao Paulo, Buenos Aires, Brasilia, Montevideo
Dublin, Casablanca, Dakar, Abidjan
Amsterdam, Algiers, Hamburg, Frankfurt, Vienna,
Stockholm, Madrid
Helsinki, Beirut, Damascus, Cape Town
Kuwait, Riyadh, Aden, Addis Ababa, Nairobi
Shiraz
Abu Dhabi, Muscat
Mumbai, Kolkata
Colombo
Jakarta, Phnom Penh, Hanoi, Vientiane
Kuala Lumpur, Taipei, Manila, Perth, Ulaanbaatar
Pyongyang
Darwin
Melbourne, Rabaul
Port Vila
Christchurch, Nadi, Nauru Island
PPG
HNL
ANC
YVR
SFO
LAX
DEN
MEX
CHI
MIA
NYC
CCS
YYT
RIO
RAI
LIS
LON
BCN
PAR
MIL
ROM
BER
ATH
JNB
IST
CAI
JRS
MOW
JED
THR
DXB
KBL
KHI
MLE
DEL
DAC
RGN
BKK
SIN
HKG
BJS
SEL
TYO
ADL
GUM
SYD
NOU
WLG
City Code Table
City City UTC Other major cities in same time zone
Code Differential
*Based on data as of June 2005.