Casio 3455 User manual

Operation Guide 3455
E-9
B
B
Dual Time ModeStopwatch Mode
E-8
Selecting a Mode
xPress Bto cycle between the modes as shown below.
xIn any mode (except a setting mode), press Lto illuminate the display.
Timekeeping Mode
B B
Alarm Mode
E-7
Mode Reference Guide
The mode you should select depends on what you want to do.
To do this: Enter this mode: See:
xView the current time and date
xConfigure time and date settings
xChange the display illumination duration setting
Timekeeping Mode E-11
xSet an alarm time
xTurn an alarm or the hourly time signal on or off Alarm Mode E-15
xUse the stopwatch to measure elapsed time Stopwatch Mode E-19
xDisplay a second time Dual Time Mode E-22
E-6
E-5
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-27
Operating Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-29
User Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-39
E-4
Using the Stopwatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-19
To enter the Stopwatch Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-20
To perform an elapsed time operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-20
To pause at a split time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-20
To measure two finishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-21
Dual Time Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-22
To enter the Dual Time Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-22
To set the Dual Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-22
Illumination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-24
To turn on illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-24
To change the illumination duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-25
Main Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-26
E-3
Contents
About This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2
Mode Reference Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-7
Timekeeping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-11
To set the time and date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-12
To select 12-hour or 24-hour timekeeping . . . . . . . . . . . . . . . . . . . . . . . . . . . E-14
Using the Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-15
To enter the Alarm Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-15
To set an alarm time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-16
To turn an alarm and the Hourly Time Signal on and off . . . . . . . . . . . . . . . . . E-17
To stop the alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-18
To test the alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-18
E-2
About This Manual
xDepending 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.
xButton operations are indicated using the letters shown
in the illustration.
xNote that the product illustrations in this manual are
intended for reference only, and so the actual product
may appear somewhat different than depicted by an
illustration.
E-1
ENGLISH
Congratulations upon your selection of this CASIO watch.
To ensure that this watch provides you with the years of service for which it is
designed, carefully read and follow the instructions in this manual, especially the
information under “Operating Precautions” and “User Maintenance”.
Be sure to keep all user documentation handy for future reference.
MA1704-EA © 2017 CASIO COMPUTER CO., LTD.

Operation Guide 3455
E-19
Using the Stopwatch
The stopwatch measures elapsed time, split times, and two finishes.
xThe measurement range of the stopwatch is 23hours, 59minutes, 59.99seconds.
xA stopwatch continues to run, restarting from zero after it reaches its limit, until
you stop it.
Hour
Mode indicator
Second
Minute
1/100 Second
E-18
To stop the alarm
Press any button.
To test the alarm
In the Alarm Mode, hold down Cto sound the alarm.
E-17
To turn an alarm and the Hourly Time Signal on and off
In the Alarm Mode, press Cto cycle through on and off
settings as shown below.
Both off
C
C
Both on
Daily alarm only
C
Hourly Time Signal
only
C
Hourly time signal on
indicator
Alarm on indicator
E-16
To set an alarm time
1. Hold down Auntil the current alarm time hour digits
start to flash.
xALM appears on the display, indicating that alarm
setting is enabled.
2. Press Bto move the flashing between the hour and
the minute digits.
xThe selected digits are those that are flashing.
3. Use Cto change the hour and minute settings.
xWhen setting the alarm time using the 12-hour
format, take care to set the time correctly as a.m. (no
indicator) or p.m. (Pindicator).
4. Press Ato exit the setting mode.
Alarm on indicator
E-15
Using the Alarm
When a daily alarm is turned on, an alarm tone will sound
for about 10seconds each day when the time in the
Timekeeping Mode reaches the preset alarm time.
You can also turn on an Hourly Time Signal, which will
cause the watch to beep twice every hour on the hour.
xThe P(PM) and 24 indicators are not displayed with the
current (Timekeeping Mode) time at the top of the Alarm
Mode screen.
To enter the Alarm Mode
Use Bto select the Alarm Mode as shown on page E-8.
Mode indicator
Timekeeping Mode
time
(Hour : Minutes)
Alarm time
(Hour : Minute)
E-14
Note
xResetting the seconds to 00 while the current count is in the range of 30 to
59causes the minutes to be increased by 1.
xThe 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.
To select 12-hour or 24-hour timekeeping
In the Timekeeping Mode, press Cto toggle between the 12-hour timekeeping and
24-hour timekeeping formats.
xThe 24 indicator is displayed while the 24-hour format is selected, while the PM
indicator (P) is displayed while the 12-hour format is selected.
xThe P(PM) and 24 indicators are not displayed with the current (Timekeeping
Mode) time at the top of the Alarm Mode and Dual Time Mode screens.
xThe 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
E-13
3. When the timekeeping setting you want to change is flashing, perform the
operation described below.
Screen To do this: Do this:
Reset the seconds to 00 Press C.
Change the hour or minute
Press Cto increase or
advance the flashing setting.
Change the year
Change the month or day
Change the day of the week
4. Press Ato exit the setting mode.
E-12
To set the time and date
1. In the Timekeeping Mode, hold down Auntil the seconds digits start to flash.
2. Press Bto move the flashing in the sequence shown below to select the other
settings.
Seconds
B
Hour
B
Minute
B
Year
BB
Day of the week
B
Day
B
Month
E-11
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
PM indicator
Day of week
Second
Hour : Minute
Month-Day
E-10
General Functions (All Modes)
The functions and operations described in this section can be used in all modes.
Auto Return
If you do not perform any operation for about one or two minutes while configuring
settings (setting flashing on the display) in any mode, the watch will exit the setting
operation and return to normal display.
Scrolling
Use the Cbutton in the setting mode to scroll through available settings. In most
cases, holding down Cwhen scrolling will scroll at high speed.

Operation Guide 3455
E-28
Power Supply: One lithium battery (Type: CR1620)
Approximate battery operating time: 10 years under the following conditions:
xOne alarm operation (10 seconds) per day
xOne illumination operation (1.5 seconds) per day
Frequent use of illumination runs down the battery.
Specifications are subject to change without notice.
E-27
Specifications
Accuracy at normal temperature: ±20 seconds a month
Timekeeping: Hour, minutes, seconds, p.m. (P), month, day, day of the week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Alarms: Daily alarm; Hourly time signal
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 23:59' 59.99"
Measuring modes: Elapsed time, split time, two finishes
Dual Time: Hour, minutes
Illumination: LED (light-emitting diode); Selectable illumination duration
(approximately 1.5 seconds or 3 seconds)
E-26
Main Indicators
Number Name See
1
1
24 indicator E-14
2
2
PM indicator E-11
3
3
Alarm on indicator E-16, E-17
4
4
Hourly time signal on indicator E-17
5
5
SPL indicator E-20
6
6
Three-second indicator E-25
1 2
4 53 6
E-25
To change the illumination duration
In the Timekeeping Mode, hold down Cfor at least two seconds to toggle between
the illumination duration settings below.
−Approximately 1.5 seconds: 3"-second indicator not displayed.
−Approximately three seconds: 3"-second indicator displayed.
xPressing Cin the above operation also toggles between the 12-hour and 24-hour
timekeeping formats.
xTo prevent running down the battery, the watch will
automatically switch back to the 1.5-second setting
about seven hours after you select the three-second
setting.
Three-second indicator
E-24
Illumination
You can illuminate the display of the watch for easy reading in the dark.
To turn on illumination
Press Lin any mode to illuminate the display.
xIllumination normally remains on for about 1.5 seconds. You can use the procedure
below to change the illumination to three seconds.
Note
xIllumination turns off automatically whenever an alarm sounds.
E-23
3. Use Cto change the hour and minute settings.
4. Press Ato exit the setting mode.
xIn the Dual Time Mode, the seconds count is synchronized with the seconds
count of the Timekeeping Mode.
E-22
Dual Time Mode
The Dual Time Mode lets you keep track of the time
in another time zone.
xThe P (PM) and 24 indicators are not displayed with
the current (Timekeeping Mode) time at the top of
the Dual Time Mode screen.
To enter the Dual Time Mode
Use Bto select the Dual Time Mode as shown on
page E-9.
To set the Dual Time
1. Hold down Auntil the dual time hour digits start
to flash.
2. Press Bto move the flashing between the hour
and the minute digits.
xThe selected digits are those that are flashing.
Mode indicator
Timekeeping Mode time
(Hour : Minutes)
Hour : Minute
Seconds
E-21
To measure two finishes
CA C A A
Start Split
(SPL displayed)
First runner finishes.
Display time of first
runner.
Stop
Second runner
finishes.
Split release
Display time of
second runner.
Reset
Note
xAn ongoing elapsed time measurement operation will continue internally even if
you change to another mode. However, if you exit the Stopwatch Mode while a
split time is displayed, the split time will not be displayed when you return to the
Stopwatch Mode.
E-20
To enter the Stopwatch Mode
Use Bto select the Stopwatch Mode as shown on page E-9.
To perform an elapsed time operation
CC C C A
Start Stop (Resume) (Stop) Reset
To pause at a split time
CA A C A
Start Split
(SPL displayed)
Split release Stop Reset
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