Casio 3128 User manual

1
Operation Guide 3128
MA0802-EA
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.
Timekeeping Mode Countdown Timer Mode Dual Time ModeAlarm ModeStopwatch Mode
Press .
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 for about one second.
Seconds
Hour : Minutes Month, Day
PM indicator
Day of week
Seconds
Hold down .
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
•Holding down Din the Timekeeping Mode will display the current month, day, and
day of the week. The current time will return to the display about one second after
you release D.
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.
Seconds Hour Minutes
12/24-hour format
YearDay Month
3. When the setting you want to change is flashing, use Dand Bto change it as
described below.
Screen To do this:
Reset the seconds to 00
Change the hour or minutes
Toggle between 12-hour (12H) and
24-hour (24H) timekeeping
Change the year
Change the month or day
Do this:
Press D.
Use D(+) and B(–).
Press D.
Use D(+) and B(–).
4. Press Ato exit the setting screen.
•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.
•With the 12-hour format, the PM indicator appears on the display for times in the
range of noon to 11:59 p.m. and no indicator appears for times in the range of
midnight to 11:59 a.m.
•With the 24-hour format, times are displayed without any indicator.
•The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
•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.
Mode indicator
Minutes
Seconds
Countdown Timer
The countdown timer can be set within a range of one to
60 minutes. An alarm will sound when the countdown
reaches zero.
•The initial factory default setting is one minute.
•The countdown operation continues even if you exit the
Countdown Timer Mode.
•All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C.
To set the countdown start time
In the Countdown Timer Mode, press Ato increase the
countdown start time (minutes).
•You can set the countdown start time within the range of
one minute to 60 minutes, in one-minute increments.
•Holding down Awill increase the countdown start time
at high speed.
To perform a countdown timer operation
In the Countdown Timer Mode, press Dto start the countdown.
•When the countdown reaches zero, the alarm tone will sound for 10 seconds or until
you stop it by pressing any button. The countdown time will reset automatically to its
starting value after the alarm stops.
•In addition to the alarm tone, a Flash Alert operation will be performed when the
countdown reaches zero. The Flash Alert operation will continue for 10 seconds or
until you stop it by pressing any button.
•Press Dwhile a countdown operation is in progress to pause it. Press Dagain to
resume the countdown.
•To completely stop a countdown operation, first pause it (by pressing D), and then
press A. This will return the countdown time to its starting value.
1/100 second
Minutes
Seconds
Stopwatch
The stopwatch measures elapsed time.
•The display range of the stopwatch is 59 minutes, 59.99
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.
To measure elapsed time with the stopwatch
Elapsed Time
Start Stop Re-start Stop Clear

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Operation Guide 3128
Alarm on indicator
Alarm time
(Hour : Minutes)
Mode indicator
Alarm
When the daily alarm is turned on, the alarm tone will
sound when the alarm time is reached.
•All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
Alarm Operation
The alarm tone will sound at the preset time for
10 seconds, regardless of the mode the watch is in.
•Alarm operations are performed in accordance with the
Timekeeping Mode time.
•To stop the alarm tone after it starts to sound, press any
button.
•In addition to the alarm tone, a Flash Alert operation will
be performed whenever the alarm time is reached. The
Flash Alert operation will continue for
10 seconds or until you stop it by pressing any button.
To set an alarm time
1. In the Alarm Mode, hold down Auntil the hour setting
of the alarm time starts to flash, which indicates the
setting screen.
•This will turn on the alarm automatically.
2. Press Cto move the flashing between the hour and
minutes.
3. While a setting is flashing, use D(+) and B(–) to
change it.
4. Press Ato exit the setting screen.
•With the 12-hour format, set the time correctly as a.m.
(no indicator) or p.m. (PM indicator).
To turn an alarm on and off
In the Alarm Mode, press Dto toggle it on (alarm on indicator displayed) and off
(alarm on indicator not displayed).
•The alarm on indicator flashes while the alarm is sounding.
•The alarm on indicator is displayed in all modes.
To test the alarm
In the Alarm Mode, hold down Dto sound the alarm.
Dual time
(Hour : Minutes)
Mode indicator
Dual Time
The Dual Time Mode lets you keep track of time in a
different time zone.
•In the Dual Time Mode, the seconds count is
synchronized with the seconds count of the
Timekeeping Mode.
To set the Dual Time
1. Press Cto enter the Dual Time Mode.
2. In the Dual Time Mode, hold down Auntil the hour
setting starts to flash, which indicates the setting
screen.
3. Press Cto move the flashing between the hour and
minutes.
4. While a setting is flashing, use D(+) and B(–) to
change it.
5. Press Ato exit the setting screen.
Mute indicator
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.
Flash Alert
A 10-second Flash Alert operation will be performed along with the alarm tone
whenever an alarm time is reached or when a countdown reaches zero. This helps to
alert you even in areas where surrounding noise is too loud to hear the alarm tone.
•You can stop the Flash Alert operation and the alarm tone by pressing any button.
•Note that Flash Alert is always enabled. You cannot turn it off.
Button Operation Tone
The button operation tone will sound any time you press
one of the watch’s buttons. You can turn the button
operation tone on or off as desired.
•The daily alarm and countdown alarm tones continue to
sound even if you turn off the button operation tone.
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 (mute indicator not displayed) and off (mute indicator
displayed).
•Holding down Cto turn the button operation tone on or off also causes the watch’s
current mode to change.
•The mute indicator is displayed in all modes when the button operation tone is
turned off.
Illumination
This watch has an EL (electro-luminescent) panel that causes the entire display to
glow for easy reading in the dark. In any mode (except when the setting screen is on
the display), press Bto turn on illumination for about one second.
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 Return Feature
•If you leave the watch in the Alarm Mode for two or three minutes without performing
any operation, it will change 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 will exit the setting screen
automatically.
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 will scroll at high speed.