MO0302-A
USERS GUIDE 2534/2654
Getting Acquainted
About This Manual
Button operations are indicated using the letters shown
Congratulations upon your selection of this CASIO watch. To get the most out of your
in the illustration.
purchase, be sure to carefully read this manual and keep it on hand for later reference
Each section of this manual provides you with the
when necessary.
information you need to perform operations in each
mode. Further details and technical information can be
found in the ŇReference section.
Expose the watch to bright light to charge its battery before using it.
You can use this watch even as its battery is being charged by exposure to bright
light.
Be sure to read ŇBattery of this manual for important information you need
to know when exposing the watch to bright light.
(Light)
If the display of the watch is blank...
If the SLEEP indicator is on the display, it means that the
display is blank because the watchs Power Saving
function has turned off the display to conserve power.
Power Saving automatically turns off the display and puts
the watch into a sleep state whenever your watch is left for
a certain period where it is dark.
The initial factory default setting is Power Saving on.
The watch recovers from the sleep state if you move it to
*
a well-lit area , if you press any button, or if you angle
the watch towards your face for reading.
*
It can take up to five seconds for the display to turn on.
See ŇPower Saving Function for more information.
Telememo Mode
General Guide
World Time Mode
Press C to change from mode to mode.
In any mode, press L to illuminate the display.
Timekeeping Mode
Press C.
Stopwatch Mode
Countdown Timer Mode
Alarm Mode
H
Timekeeping
To create a new Telememo record
Use the Timekeeping Mode to set and view the current
Hour : Minutes Seconds
time and date.
1. In the Telememo Mode, use B and D to cycle through
Name area
the record screens until the new data screen appears.
Year
To set the time and date
The new data screen is the one that is blank (contains
1. In the Timekeeping Mode, hold down A until the
no name and telephone number).
seconds start to flash, which indicates the setting
If the message FULL appears on the display, it
screen.
means that memory is full. To store another record,
2. Press C to move the flashing in the sequence shown
you will first have to delete some of the records stored
below to select other settings.
in memory.
Number area
2. Hold down A until the flashing cursor (_) appears in
12/24-Hour
Seconds
Hour
Minutes
the name area of the display.
New Data Screen
Format
3. In the name area, use D and B to cycle through
Day of week
characters at the cursor position. The characters cycle
Month Day
in the sequence shown below.
Power Saving
Day
Month
Year
PM indicator
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Press D.
Setting
Button Operation
Screen
0 9
-
.
:
/
to
(space)
A Z
to
Seconds
Press D to reset to 00.
Press B.
Hour, Minutes
Use D (+) and B () to change the setting.
4. When the character you want is at the cursor position, press C to move the cursor
12/24-Hour
Press D to toggle between 12-hour (12H) and
to the right.
Format
24-hour (24H) timekeeping.
5. Repeat steps 3 and 4 until the name is complete.
Year,Month,Day
Use D (+) and B () to change the setting.
You can input up to eight characters for the name.
6. After you input the name, press C as many times as necessary to move the cursor
Power Saving
Press D to toggle Power Saving on (ON) and
to the number area.
off (OFF).
When the cursor is located at the eighth space of the name area, moving the
cursor to the right causes it to jump to the first digit of the number. When the
4. Press A to exit the setting screen.
cursor is at the 12th digit of the number, moving it to the right (by pressing C)
See ŇPower Saving Function for details about configuring Power Saving settings.
causes it to jump to the first character in the name.
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
7. In the number area, use D and B to cycle through numbers and symbols
applied in all modes.
(hyphen, space) at the cursor position. The characters cycle in the sequence shown
The day of the week is automatically displayed in accordance with the date (year,
below.
month, and day) settings.
Press D.
x
(space)
0 to 9
Telememo
Press B.
The Telememo Mode lets you store up to 30 records, each
Remaining memory
containing name and telephone number data. Records are
8. When the character you want is at the cursor position, press C to move the cursor
automatically sorted based on the characters of the name.
to the right.
You can recall records by scrolling through them on the
9. Repeat steps 7 and 8 until you complete number input.
display.
You can input up to 12 digits for the number.
See ŇSort Table for details on how the watch sorts
10. After inputting your data, press A to store it.
records.
Name
After data storage is complete, the cursor appears in the name area of the
All of the operations in this section are performed in the
display, ready for input of a new Telememo record.
Telememo Mode, which you enter by pressing C.
11. Input more data (starting from step 3) or press A again to return to the Telememo
record screen (without the cursor).
The name can show only three characters at a time, so longer text scrolls
continuously from right to left. The last character is indicated by the symbol after it.
Telephone number
1
USERS GUIDE 2534/2654
To recall Telememo records
Reset Time
In the Telememo Mode, use D (+) and B () to scroll through Telememo records on
You can set a Ňreset time, which is a kind of alternate countdown start time you can
the display.
recall with the press of a button any time a countdown operation is in progress.
Pressing D while the last Telememo record is on the display or B while the first
record is on the display displays the new data screen.
Timer Mode
The countdown timer gives you a choice of two modes: auto-repeat and elapsed time.
To edit a Telememo record
Auto-repeat
1. In the Telememo Mode, use D (+) and B () to scroll through the records and
Auto-repeat mode automatically restarts the countdown from the countdown start time
display the one you want to edit.
you set whenever zero is reached.
2. Hold down A until the flashing cursor appears on the display.
Auto-repeat mode is best when timing the starts of match races.
3. Use C to move the flashing to the character you want to change.
Even if you start a countdown operation from the reset time, the countdown
4. Use D (+) and B () to change the character.
automatically restarts from the countdown start time whenever it reaches zero.
5. After making the changes that you want, press A to store them and return to the
Auto repeat timing repeats up to seven times.
Telememo record screen.
Elapsed Time
To delete a Telememo record
When the end of the countdown is reached in the elapsed time mode, the timer
1. In the Telememo Mode, use D (+) and B () to scroll through the records and
automatically switches to an elapsed time measurement operation.
display the one you want to delete.
The elapsed time mode is best when timing the speed of yachts during ocean races.
2. Hold down A until the flashing cursor appears on the display.
The elapsed time operation is performed in one-second increments up to 99 hours,
3. Hold down D and B until the watch beeps and
stops flashing on the
CLR
59 minutes, 59 seconds.
display.
The message
appears, which indicates that the record is being deleted.
CLR
Countdown Timer Beeper Operations
After the record is deleted, the cursor appears on the display, ready for input.
The watch beeps at various times during a countdown so you can keep informed
4. Input data or press A to return to the Telememo record screen.
about the countdown status without looking at the display. The following describes the
types of beeper operations the watch performs during a countdown.
Countdown End Beeper
World Time
The watch beeps each second of the final 10 seconds before a countdown reaches
zero, and at zero. The first five beeps (seconds 10 through 6) are higher pitched than
The World Time Mode shows you the current time in 27
the final five beeps (seconds 5 through 1). The watch emits a longer beep to signal
GMT differential
cities (29 time zones) around the world.
when the countdown reaches zero.
The time settings of the Timekeeping Mode and the
City Code
The countdown end beeper always sounds, regardless of the on/off status of the
World Time Mode are independent from each other, so
progress beeper.
you must make separate settings for each.
Whenever you change the time setting for any city in the
Progress Beeper
World Time Mode, the settings of all other cities are
The progress beeper actually includes two beepers: a reset time beeper and a reset
changed accordingly.
period progress beeper.
For full information on city codes, see the ŇCity Code
The reset time beeper and reset period progress beeper sound only while the
Table.
progress beeper is turned on.
All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
Reset Time Beeper
Timekeeping Mode time
The reset time beeper is similar to the countdown end beeper. When the progress
beeper is turned on, the watch beeps each second of the final 10 seconds before the
Current time in the zone
countdown reaches the reset time.
of the selected city code
Reset Period Progress Beeper
To view the time in another city code
The reset period is the portion of the countdown between the reset time and zero.
In the World Time Mode, press D to scroll through city codes (time zones) to the east
When the progress beeper is turned on, the watch emits four short beeps at the top of
or B to scroll to the west.
each minute during the reset period, and 30 seconds before the end of the
countdown.
To set the World Time
1. In the World Time Mode, use D and B to scroll
Countdown Timer Examples
through the city code (time zone) and find the one you
Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Auto-repeat;
want.
Progress beeper: On
2. Hold down A until the hour setting of the world time
Reset Period
starts to flash, which indicates the setting screen.
3. Press C to move the flashing between the hour and
Start Time
Reset Time
Countdown
Reset Period Progress Beeper
minute settings.
End Beeper
4. While a setting is flashing, use D (+) and B () to
0'00"
1'00" 0'30"
2'00"
3'00"
4'00"
5'00"
10'00"
change it.
Reset Time Beeper
5. Press A to exit the setting screen.
Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Elapsed time;
Progress beeper: Off
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from
Elapsed time
Standard Time. Remember that not all countries or even local areas use Daylight
Start Time
Reset Time
measurement
Saving Time.
To toggle a city code time between Standard Time and Daylight Saving Time
0'00"
5'00"
10'00"
Countdown
1. In the World Time Mode, use D and B to display the
End Beeper
city code whose Standard Time/Daylight Saving Time
setting you want to change.
To configure the countdown timer
2. Hold down A until the hour setting of the world time
1. While the countdown start time is on the display in the
starts to flash, which indicates the setting screen.
Countdown Timer Mode, hold down A until the
3. Press L to toggle Daylight Saving Time ( displayed)
countdown start time setting starts to flash, which
and Standard Time ( not displayed).
indicates the setting screen.
4. Press A to exit the setting screen.
If the countdown start time is not displayed, use the
The Daylight Saving Time indicator appears while the
procedure under ŇTo use the countdown timer to
GMT differential is on the display only. It does not
display it.
appear while the city code is on the display.
2. Press C to move the flashing in the sequence shown
Note that you cannot switch between Standard Time
below to select other settings.
and Daylight Saving Time while
is selected as the
GMT
city code.
Note that the DST/Standard Time setting affects only the
Start
Reset
Timer
Progress
currently displayed city code. Other city codes are not
Time
Time
Mode
Beeper
affected.
The indicator is on the display whenever you display a
city code for which Daylight Saving Time is turned on.
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Countdown Timer
Setting
Screen
Button Operations
Seconds
Minutes
The countdown timer can be set within a range of one
Start Time
Use D (+) and B () to change the setting.
minute to 60 minutes. An alarm sounds when the
You can set a start time in the range of 1 to 60 minutes
countdown reaches zero. The countdown timer has two
in 1-minute increments.
modes: auto-repeat and elapsed time, and a progress
beeper signals the progress of the countdown. All of this
Reset Time
Use D (+) and B () to change the setting.
makes the countdown timer a valuable tool for timing the
You can set a reset time in the range of 1 to 5 minutes
start of a yacht race.
in 1-minute increments.
All of the operations in this section are performed in the
Timer Mode
Press D to toggle between the auto-repeat mode (ON)
Countdown Timer Mode, which you enter by pressing
Timekeeping Mode time
and the elapsed time mode (OFF).
C.
An auto-repeat indicator (
) appears when the auto-
repeat mode is selected.
Configuring the Countdown Timer
Progress
Press D to toggle progress beeper on (ON) and off (OFF).
The following are the settings you should configure before actually using the
Beeper
A progress beeper indicator (
countdown timer.
) appears when this
Countdown start time and reset time
setting it turned on.
Timer mode (auto-repeat, elapsed time)
4. Press A to exit the setting screen.
Progress beeper on/off
The reset time setting must be less than the countdown start time setting.
See ŇTo configure the countdown timer for information about setting up the timer.
2
USERS GUIDE 2534/2654
To use the countdown timer
1
1
To select the operation of Alarm 11
1
In the Countdown Timer Mode, press D to start the
1. In the Alarm Mode, use D to select Alarm 1.
countdown timer.
2. Press B to cycle through the available settings in the sequence shown below.
The countdown timer measurement operation continues
SNZ indicator and one-time alarm on indicator
even if you exit the Countdown Timer Mode.
The table below describes button operations you can
SNZ ALM
ALM
perform to control countdown operations.
One-time alarm on
Snooze alarm on
Alarm off
To do this:
Do this:
Stop the countdown operation
Press D.
The applicable alarm on indicator (ALM or SNZ ALM) is displayed in all modes
when an alarm is turned on.
Resume a stopped countdown operation
Press D again.
The SNZ indicator flashes during the 5-minute intervals between alarms.
Display the countdown start time
While the countdown is
Displaying the Alarm 1 setting screen while the snooze alarm is turned on
stopped, press B.
automatically turns off the snooze alarm (making Alarm 1 a one-time alarm).
Stop the countdown operation and display the reset time
Press B.
To turn the hourly time signal and the brightness alarm on and off
Start the countdown from the displayed reset time
Press D.
1. In the Alarm Mode, use D to select the Hourly Time
Hourly time signal on
Signal or the brightness alarm.
indicator
The table below describes button operations you can perform during an elapsed
2. Press B to toggle the displayed item on and off.
time measurement operation in the elapsed time mode.
Turning on the Hourly Time Signal displays the hourly
time signal on indicator (SIG) on its screen.
To do this:
Do this:
Turning on the brightness alarm displays the brightness
Stop the elapsed time operation
Press D.
alarm on indicator (BRT) on its screen.
The hourly time signal on indicator and brightness alarm
Press D again.
Resume a stopped elapsed time operation
on indicator are displayed in all modes.
While the elapsed time is
Display the countdown start time
stopped, press B.
Brightness alarm on
indicator
Stop the elapsed time operation and display the reset time
Press B.
Press D.
Start the countdown from the displayed reset time
Alarms
You can set five independent Daily Alarms. When an
Alarm number
alarm is turned on, the alarm tone sounds when the alarm
Alarm time
(Hour : Minutes)
time is reached. One of the alarms can be configured as a
Stopwatch
snooze alarm or a one-time alarm, while the other four are
one-time alarms.
The stopwatch lets you measure elapsed time, split times,
You can also turn on an Hourly Time Signal that causes
Minutes
and two finishes.
the watch to beep twice every hour on the hour, and a
The display range of the stopwatch is 99 hours, 59
Hours
Seconds
brightness alarm that beeps whenever the watch is moved
minutes, 59.99 seconds.
from an area where it is dark to an area where it is light.
The stopwatch continues to run, restarting from zero
There are five alarm screens numbered 1 through 5.
after it reaches its limit, until you stop it.
Timekeeping Mode time
The hourly time signal screen is indicated by :00. The
The stopwatch measurement operation continues even
brightness alarm screen shows ON or OFF.
if you exit the Stopwatch Mode.
All of the operations in this section are performed in the
Exiting the Stopwatch Mode while a split time is frozen
Alarm Mode, which you enter by pressing C.
on the display clears the split time and returns to
elapsed time measurement.
1/100 second
All of the operations in this section are performed in the
To set an alarm time
Stopwatch Mode, which you enter by pressing C.
1. In the Alarm Mode, use D to scroll through the alarm
screens until the one whose time you want to set is
To measure times with the stopwatch
displayed.
Elapsed Time
x3
x4
x1
x2
B
D
D
D
D
➤
➤
➤
➤
Start
Stop
Re-start
Clear
Stop
ON or OFF
:00
x5
Split Time
B
D
B
B
D
➤
➤
➤
➤
You can configure Alarm 1 as a snooze alarm or a one-time alarm. Alarms 2
through 5 can be used as one-time alarms only.
Clear
Start
Split
Split release
Stop
The snooze alarm repeats every five minutes.
(SPL displayed)
2. After you select an alarm, hold down A until the hour setting of the alarm time
Two Finishes
starts to flash. This indicates the setting screen.
B
B
D
B
D
3. Press C to move the flashing between the hour and minute settings.
➤
➤
➤
➤
4. While a setting is flashing, use D (+) and B () to change it.
Start
Split
Clear
Stop
Split release
When setting the alarm time using the 12-hour format, take care to set the time
First runner
Second runner
Display time of
finishes.
second runner.
finishes.
correctly as a.m. (no indicator) or p.m. (P indicator).
Display time of
5. Press A to exit the setting screen.
first runner.
Alarm Operation
The alarm sounds at the preset time for about 10 seconds. In the case of the snooze
Backlight
alarm, the alarm operation is performed a total of seven times, every five minutes,
The backlight uses an EL (electro-luminescent) panel that
until you turn the alarm off or change it to a one-time alarm.
Auto light switch
causes the entire display to glow for easy reading in the
The watch also has a brightness alarm. When turned on, the brightness alarm causes
on indicator
dark. The watchs auto light switch automatically turns on
the watch to beep for 10 seconds when the watch is brought from the dark into the
the backlight when you angle the watch towards your face.
light. The following are the conditions for brightness alarm operation.
The auto light switch must be turned on (indicated by
The watch needs to be in the dark for about 30 to 35 minutes for the brightness
the auto light switch on indicator) for it to operate.
alarm to become activated.
See ŇBacklight Precautions for other important
The brightness alarm sounds about 15 to 20 minutes after the watch is next exposed
information about using the backlight.
to light.
The brightness alarm sounds only once and then turns off automatically.
To turn on the backlight manually
In any mode, press L to illuminate the display for about
Note
one second.
Pressing any button stops the alarm tone operation.
The above operation turns on the backlight regardless of
Performing any one of the following operations during a 5-minute interval between
the current auto light switch setting.
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen
About the Auto Light Switch
Displaying the Alarm setting screen
1
Turning on the auto light switch causes the backlight to turn on for about one second,
whenever you position your wrist as described below in any mode. Note that this
To test the alarm
watch features a ŇFull Auto EL Light, so the auto light switch operates only when
In the Alarm Mode, hold down D to sound the alarm.
available light is below a certain level. It does not turn on the backlight under bright
light.
2
2
5
5
To turn Alarms through on and off
2
5
2
2
5
5
1. In the Alarm Mode, use D to select a one-time alarm
One-time alarm on
(alarm number 2 through 5).
Moving the watch to a position that is parallel to the ground and then tilting it towards
indicator
2. Press B to toggle the displayed alarm on and off.
you more than 40 degrees causes the backlight to turn on.
Turning on a one-time alarm (2 through 5) displays the
one-time alarm on indicator (ALM) on its screen.
The one-time alarm on indicator is displayed in all
modes.
Parallel to
More than
If any alarm is on, the alarm on indicator is shown on
ground
40
°
the display in all modes.
3