Casio 3248 User manual

1
Operation Guide 3248
MA1009-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 World Time Mode Countdown
Timer Mode
Alarm Mode Stopwatch 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 two seconds.
•If you do not perform any operation for a few minutes while a setting screen (with
flashing digits) is on the display, the watch exits the setting screen automatically.
•If you do not perform any operation for a few minutes in the Alarm Mode, the watch
reverts to the normal timekeeping screen automatically.
Day of week
Hour : Minutes Seconds
Month – Day
PM indicator
Timekeeping
Use the Timekeeping Mode to set and view the current
time and date.
•Pressing Ain the Timekeeping Mode will display the
currently selected Home City.
•Press Dto toggle between 12-hour and 24-hour
formats.
•With 12-hour format, times between midnight and noon
are indicated by AM, while times between noon and
midnight are indicated by PM.
•The AM and PM indicators do not appear when you are
using 24-hour format.
To set the time and date
1. While in the Timekeeping Mode, hold down Auntil the second’s digits flash on the
display, which indicates the setting screen.
2. Press Cto move the flashing in the sequence shown below.
DST
Seconds
Month
Day
City code
Minutes
Year
Hour
3. While the seconds setting is selected (flashing), press Dto reset it to 00. If you
press Dwhile the seconds setting is in the range of 30 to 59, the seconds are
reset to 00 and 1 is added to the minutes. If the seconds setting is in the range of
00 to 29, the minutes count is unchanged.
•While the DST* setting is selected (DST on indicator is flashing), press Dto
toggle it on (On) and off (OF).
•The DST on/off setting you select for the Timekeeping Mode affects the World
Time Mode.
•While the city code setting is selected, use Dand Bto scroll through the
available codes until the one you want to use as your home time city is displayed.
•For full information on city codes, see the “City Code Table”.
4. While any other setting is selected (flashing), press Dto increase it or press Bto
decrease it. Holding down Dor Bscrolls at high speed.
5. Press Ato exit the setting screen.
•The day of the week is set in accordance with the date automatically.
•The date can be set within the range of January 1, 2000 to December 31, 2099.
•The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years automatically. Once you set the date, there should be no
reason to change it except after replacement of the watch’s battery.
* See “Daylight Saving Time (DST) Setting”for details about the DST setting.
Backlight Precautions
The backlight uses an EL (electro-luminescent) panel that causes the entire display to
glow for easy reading in the dark. In any mode (except when a setting screen is on the
display), press Bto illuminate the display for about two seconds.
•The electro-luminescent panel that provides illumination loses power after very long
use.
•The illumination provided by the backlight 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.
•The backlight turns off automatically whenever an alarm sounds.
•Frequent use of the backlight shortens the battery life.
Current time in the zone
of the selected city code
City code
Mode indicator
World Time
World Time shows the current time in 30 cities (29 time
zones) around the world.
•All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
To view the time in another city code
In the World Time Mode, press Dto scroll through city
codes (time zones).
•For full information about city codes, see the “City Code
Table”.
•If the current time shown for a city is wrong, check your
Timekeeping Mode time and Home City code settings
and make the necessary changes.
Daylight Saving Time (DST) Setting
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 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 between
Daylight Saving Time (DST indicator displayed) and
Standard Time (DST indicator not displayed).
Alarm time
(Hour : Minutes)
Alarm number
Mode indicator
DST indicator
•The DST indicator will appear 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.
Alarms
You can set five independent Daily Alarms. When an
alarm is turned on, the alarm tone sounds when the alarm
time is reached.
You can turn on an Hourly Time Signal that causes the
watch to beep twice every hour on the hour.
•There are six screens in the Alarm Mode. Five are for
daily alarms (indicated by numbers from x1 through
x5), and one is for the Hourly Time Signal (indicated by
SIG).
•All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
To set an alarm time
1. In the Alarm Mode, use Dto scroll through the alarm screens until the one whose
time you want to set is displayed.
Alarm 2
Alarm 1
:00 (Hourly Time Signal)
Alarm 3
Alarm 5
Alarm 4
•To set a one-time alarm, display one of the screens indicated by an alarm number
from x1 through x5.
2. After you select an alarm, hold down Auntil the hour setting of the alarm time
starts to flash, which indicates the setting screen.
•This operation turns on the alarm automatically.
3. Press Cto move the flashing between the hour and minute settings.

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Operation Guide 3248
4. While a setting is flashing, use D(+) and B(–) to change it.
•When setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (AM indicator) or p.m. (PM indicator).
5. Press Ato exit the setting screen.
Alarm Operation
The alarm sounds at the preset time for about 10 seconds, regardless of the mode the
watch is in.
•To stop the alarm tone after it starts to sound, press any button.
To test the alarm
In the Alarm Mode, hold down Dto sound the alarm.
To turn an alarm on and off
1. In the Alarm Mode, use Dto select an alarm.
2. Press Ato toggle it on (the alarm on indicator
displayed) and off (the alarm on indicator not
displayed).
•Turning on a daily alarm (x1 through x5) displays the
alarm on indicator on its Alarm Mode screen.
•In all modes, the alarm on indicator is shown for any
alarm that is currently turned on.
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use Dto select the Hourly Time
Signal (SIG).
2. Press Ato toggle it on (the hourly time signal on
indicator displayed) and off (the hourly time signal on
indicator not displayed).
•The Hourly Time Signal on indicator is shown on the
display in all modes while the Hourly Time Signal is
turned on.
Hourly time signal
on indicator
Alarm on indicator
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
•The display range of the stopwatch is 23 hours,
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.
•Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
•All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
Elapsed time measurement
Stop Re-start Stop Clear
Start
Start
Split
(SPL displayed)
Split release Stop Clear
Start Split Stop Split release Clear
Split time measurement
Split time and 1st-2nd place times
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
Mode indicator
1/100 second
Hours Seconds
Minutes
Hours Seconds
Minutes
Mode indicator
Countdown Timer
The countdown timer can be set within a range of
one minute to 24 hours. An alarm sounds when the
countdown reaches zero.
•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 use the countdown timer
Press Dwhile in the Countdown Timer Mode to start the
countdown timer.
•When the end of the countdown is reached, the alarm
sounds for 10 seconds or until you stop it by pressing
any button. The countdown time is reset to its starting
value automatically after the alarm stops.
•Press Dwhile a countdown operation is in progress to pause it. Press Dagain to
resume the countdown.
•To stop a countdown operation completely, first pause it (by pressing D), and then
press A. This returns the countdown time to its starting value.
To set the countdown start time
1. In the Countdown Timer Mode, hold down Auntil the
hours of the countdown start time start to flash, which
indicates the setting screen.
2. Press Cto move the flashing between the hours and
minutes.
3. While a setting is flashing, use D(+) or B(–) to
change it.
•To set the starting value of the countdown time to
24 hours, set 0:00.
4. Press Ato exit the setting screen.
•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.
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.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing when you
last exited the mode appears first.
World Time
•The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
•The current time in all World Time Mode cities is calculated in accordance with the
Greenwich Mean Time (GMT) differential for each city, based on the current Home
City time setting in the Timekeeping Mode.
•The GMT differential is the time difference of the time zone where the city is located
from Greenwich Mean Time.
•GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC) data.
Specifications
Accuracy at normal temperature: ±30 seconds a month
Timekeeping: Hour, minutes, seconds, a.m./p.m., day, day of the week, month, year
Time system: Switchable between 12-hour and 24-hour formats
Calendar system: Full auto-calendar pre-programmed from the year 2000 to 2099
Standard time/Daylight saving time
Other: Home City code (can be assigned one of 30 city codes); Daylight Saving
Time (summer time)/Standard Time
World Time: 30 cities (29 time zones)
Other: Daylight Saving Time/Standard Time
Alarm: 5 Daily Alarms, Hourly Time Signal
Stopwatch
Measuring unit: 1/100 of a second
Measuring capacity: 23 hours, 59 minutes, 59.99 seconds
Functions: Elapsed time, split time and two finishes
Countdown Timer
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Other: EL backlight, Button operation tone on/off
Battery: One lithium battery (Type: CR1616)
Battery life
3 years under the following conditions
•2 seconds of backlight operation per day
•10 seconds of alarm operation per day
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 alarm,
Hourly Time Signal, and Countdown Timer Mode 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 Cfor about three seconds to toggle
the button operation tone on (mute indicator not
displayed) and off (mute indicator displayed).
Mute indicator

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Operation Guide 3248
City Code Table
PPG Pago Pago –11
HNL Honolulu –10 Papeete
ANC Anchorage –9Nome
LAX Los Angeles –8 San Francisco, Las Vegas, Vancouver, Seattle, Dawson City
DEN Denver –7 El Paso, Edmonton
CHI Chicago –6Houston, Dallas/Fort Worth, New Orleans, Mexico City,
Winnipeg
NYC New York –5Montreal, Detroit, Miami, Boston, Panama City,
Havana, Lima, Bogota
CCS* Caracas –4 La Paz, Santiago, Port Of Spain
YYT St. Johns –3.5
RIO Rio De Janeiro –3 Sao Paulo, Buenos Aires, Brasilia, Montevideo
RAI Praia –1
LON London 0 Dublin, Lisbon, Casablanca, Dakar, Abidjan
PAR Paris +1 Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
Frankfurt, Vienna, Stockholm
CAI Cairo +2 Athens, Helsinki, Istanbul, Beirut, Damascus, Cape Town
JRS Jerusalem
JED Jeddah +3 Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
THR Tehran +3.5 Shiraz
DXB Dubai +4 Abu Dhabi, Muscat
KBL Kabul +4.5
KHI Karachi +5 Male
DEL Delhi +5.5 Mumbai, Kolkata, Colombo
DAC Dhaka +6
RGN Yangon +6.5
BKK Bangkok +7 Jakarta, Phnom Penh, Hanoi, Vientiane
HKG Hong Kong +8 Singapore, Kuala Lumpur, Beijing, Taipei, Manila,
Perth, Ulaanbaatar
TYO Tokyo +9 Seoul, Pyongyang
ADL Adelaide +9.5 Darwin
SYD Sydney +10 Melbourne, Guam, Rabaul
NOU Noumea +11 Port Vila
WLG Wellington +12 Christchurch, Nadi, Nauru Island
City City UTC Offset/ Other major cities in same time zone
Code GMT Differential
•Based on data as of December 2009.
*In December 2007, Venezuela changed its offset from –4 to –4.5. Note, however,
that this watch displays an offset of –4 (the old offset) for the CCS (Caracas,
Venezuela) city code.