Casio 2441 User manual

USER’S GUIDE 2441
1
Timekeeping Mode World Time Mode e-DATA MEMORY Mode Alarm Mode Stopwatch Mode
Press .
General Guide
•Press Cto change from mode to mode.
•In any mode, press Lto illuminate the display.
Timekeeping
Use the Timekeeping Mode to set and view the
current time and date.You can also select the
Timekeeping Mode display format (world map or time
and date) and display color pattern you want to use.
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 city code for your Home City (the
city where you normally use the watch).
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. Use Cand Lto move the flashing in the
sequence shown below to select other settings.
Seconds DST
City Code Hour
Minutes
Day Month Year 12/24-Hour
Format
Press . Press .
3. When the setting you want to change is flashing, use Dand Bto change it
as described below.
To change this setting
Seconds
DST
12/24-Hour Format
City Code, Hour, Minutes, Year,
Month, Day
Perform this button operation
Press Dto reset to .
Press Dto toggle between Daylight Saving Time (ON)
and standard time (OFF).
Press Dto toggle between 12-hour (12H) and 24-hour
(24H) timekeeping.
Use D(+) and B(–) to change the setting.
Day of week
PM indicator
Hour : Minutes Seconds
Month – Day
•Pressing Dwhile the seconds are in the range
of 30 to 59 resets them to and adds 1 to the
minutes. In the range of 00 to 29, the minutes are
unchanged.
•The City Code setting screen displays a world
map with the time zone of the currently selected
city code flashing.
•For full information on city codes, see the “City
Code Table” at the back of this manual.
•See “Daylight Saving Time (DST)” on page for
details about DST setting.
4.Press Ato exit the setting screen.
•The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode
is applied in all modes.
•The day of the week is automatically displayed in accordance with the date
(year, month, and day) settings.
To switch between the Time–Date screen and the Time–World Map screen
Each press of Din the Timekeeping Mode toggles the display between the
Time–Date screen and the Time–World Map screen.
Time – Date Time – World Map
World Map
Home City zone
(flashing)
Press D.
•The time zone that includes your Home City code flashes on the world map.
•Note that the shapes of the time zones that appear on the watch’s world map
are approximate and may be somewhat different from actual time zones,
which are sometimes irregularly shaped (not straight lines).
•The area on the world map where it is daytime is black on white. Nighttime is
indicated in red on blue.
City code
Color Pattern Setting
You can select one of four different color patterns for the Timekeeping Mode
display.
To change the color pattern setting
In the Timekeeping Mode, each press of Bcycles through available display
color patterns in the sequence shown below.
Black on white
Black on white
Black on white
Red on blue
Red on blue
Black on white
Red on blue
Red on blue
•For the Time–Date screen, the middle part of the display is always blue on
white.
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 Ctwice to display the DST setting screen.
3.Press Dto toggle between Daylight Saving Time
(ON displayed) and standard time (OFF displayed).
•Note that you cannot switch between standard
time and Daylight Saving Time while is
selected as the city code.
4.Press Ato exit the setting screen.
•The DST indicator appears on the display to
indicate that Daylight Saving Time is turned on.
World Time
World Time shows the current time in 27 cities (29
time zones) around the world.
•The area on the world map where it is daytime is
black on white. Nighttime is indicated in red on blue.
Note that the daytime and nighttime areas indicated
on the world map are in accordance with the
Timekeeping Mode month and time.
•The time zone that corresponds to the selected city
code flashes on the world map.
•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) to
the east or Bto scroll to the west.
•For full information about city codes, see the “City Code Table” at the back of
this manual.
•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.
•The city code that is currently selected as your Home City code is displayed
as red on blue.
World map
Current time in the zone
of the selected city code
City code
To toggle a city code time between standard time and Daylight Saving Time
1.In the World Time Mode, use Band Dto display
the city code (time zone) whose standard time/
Daylight Saving Time setting you want to change.
2.Hold down Afor about two seconds 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.
•Note that you cannot switch between standard time
and Daylight Saving Time while is selected
as the city code.

USER’S GUIDE 2441
2
e-DATA MEMORY
You can use the watch’s e-DATA MEMORY to store
e-mail addresses, Web page URLs, and other text
data.You can store up to 20 records (data items),
and even use a password to limit access to e-DATA
MEMORY contents.
•You can input alphabetic lower-case and upper-
case characters, symbols, and numbers for an e-
DATA MEMORY record.
•You can input up to 20 characters for the text of
each record.
•Records are stored in memory in the sequence
they are created.
•All of the operations in this section are performed in
the e-DATA MEMORY Mode, which you enter by
pressing C.
Te x t
Record number
(Page number)
To create a new e-DATA MEMORY record
1. In the e-DATA MEMORY Mode, press Band Dat
the same time to display the new data screen.
•You do not have to perform the above step if the
new data screen is already on the display.
•The new data screen is the one that is blank
(contains no text).
•Take care that you press Band Dat the same
time. Accidentally pressing Balone changes to
the new password setting screen ( ) or the
old password input screen ( ). If this
happens, press Bagain to exit the password
screen, and then carefully press Band Dat the
same time.
•If the message appears on the display, it
means that memory is full. To store another
record, you will first have to delete some of the
records stored in memory.
2. Hold down Auntil the flashing cursor ( ) appears on the display, which
indicates the setting screen.
3. Use Dand Bto change the character at the cursor position. The character
changes in the sequence shown below.
(space)
0to
(number)
to
(upper-case)
to
(lower-case)
to
(symbol)
Press . Press .
•See the “Character List” at the back of this manual for information about
the characters you can input.
4. When the character you want is at the cursor position, press Cto move the
cursor to the right.
•You can move the cursor to the left by pressing L.
5. Repeat steps 3 and 4 until the text is complete.
New Data Screen
6. Press Ato store your data and return to the e-DATA MEMORY record
screen (without the cursor).
•When the text has more than four characters, it scrolls from right to left on the
display.
To recall e-DATA MEMORY records
In the e-DATA MEMORY Mode, press Dto scroll forward through e-DATA
MEMORY records.
•Pressing Dwhile the last record in memory is on the display changes to the
new data screen. Pressing Dagain displays the first record.
To edit an e-DATA MEMORY record
1. In the e-DATA MEMORY Mode, display the record you want to edit.
2. Hold down Auntil the flashing cursor appears on the display.
3. Use Cand Lto move the flashing to the character you want to change.
•Use Cto move the cursor to the right, and Lto move it to the left.
4. Use Dand Bto change the character.
5. After making the changes you want, press Ato store them and return to the
e-DATA MEMORY record screen.
To delete an e-DATA MEMORY record
1. In the e-DATA MEMORY Mode, display the record you want to delete.
2. Hold down Auntil the flashing cursor appears on the display.
3. Press Band Dat the same time to delete the record.
•The message appears to indicate that the record is being deleted.
After the record is deleted, the cursor appears on the display, ready for
input.
4. Input data or press Ato return to the e-DATA MEMORY record screen.
Using a Password to Protect e-DATA MEMORY Data
You can register a 4-digit password to keep e-DATA MEMORY data secure.
Important!
Use a 4-digit password that is easy for you to remember, but difficult for others
to decipher. If you forget the password, you will have to have your watch
initialized (which deletes all data in memory) in order to access the e-DATA
MEMORY again.To have the watch initialized, contact the store or dealer
where you purchased it, and ask to have the AC operation performed.
To register a new password
1.In the e-DATA MEMORY Mode, press B.
•This displays a screen that shows
xxxx, with the first hyphen flashing. This is the
new password setting screen.
2.Press Dto scroll through numbers at the first digit.
3.When the first digit is the number you want, press
Cto advance to the next digit.
4.Repeat steps 2 and 3 to input all four digits of the
password you want.
•Pressing Bwhile inputting a new password
clears your input and returns to the e-DATA
MEMORY record screen.
5.After all four of the password digits are the way you
want, press Cto register them.
•After you register a password, the e-DATA MEMORY record screen appears
with displayed at the top in red on blue. The red on blue coloring
indicates that e-DATA MEMORY is protected by a password.
•After registering a password, you can input, recall, edit and delete data, if you
want. After you exit the e-DATA MEMORY Mode, you will have to input the
password every time you want to enter it again.
To input the password
1.Enter the e-DATA MEMORY Mode.
2.On the password input screen ( xxxx),
input the password.
•Press Dto scroll through numbers at each digit.
•Press Cto advance to the next digit.
3.After the password is the way you want, press C.
•The e-DATA MEMORY record screen appears if the
password you input matches the one you
registered.
•The password input screen reappears if the
passwords do not match.
Black on white
Red on blue
To change the password
1. While a record screen or password input screen is on the display in the e-
DATA MEMORY Mode, press B.
•This displays xxxx for input of the current password.
2. Input the current password.
•Press Dto scroll through numbers at each digit.
•Press Cto advance to the next digit.
3. After the password is the way you want, press C.
•If the password you input matches the current password xxxx
appears for input of the new password.
•The password input screen appears if the passwords do not match.
4. Input the new password.
•Press Dto scroll through numbers at each digit.
•Press Cto advance to the next digit.
5. After the new password is the way you want, press Cto register it and
change to the e-DATA MEMORY record screen.
•While the or input screen is on the display, you can press B
to change to the password input screen.
To delete the password
1. While a record screen or password input screen is on the display in the e-
DATA MEMORY Mode, press B.
•This displays xxxx for input of the current password.
2. Input the current password.
•Press Dto scroll through numbers at each digit.
•Press Cto advance to the next digit.
3. After the password is the way you want, press C.
•If the password you input matches the current password, xxxx
appears for input of the new password.
•The password input screen appears if the passwords do not match.
4. While xxxx is on the display, hold down A. Keep Adepressed
until first appears, and then the e-DATA MEMORY record screen
appears.
Alarm
You can set five independent Daily Alarms. When an
alarm is turned on, the alarm tone sounds when the
time is reached.
You can also turn on an Hourly Time Signal that
causes the watch to beep twice every hour on the
hour.
•The alarm screen is indicated by the indicator
in the upper display, while indicates the
Hourly Time Signal screen.
•The five alarms are identified by alarm numbers P-
1through P-5.
•Alarm settings (and Hourly Time Signal settings)
are available in the Alarm Mode, which you enter by
pressing C.
To set an alarm time
1.In the Alarm Mode, use Dand Bto select the
alarm whose time you want to set.
Alarm 1 Alarm 3Alarm 2
Time
Signal Alarm 4Alarm 5
Press . Press .
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 automatically turns on the alarm.
3. Press Cto move the flashing between the hour and minutes.
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. (no indicator) or p.m. (Pindicator).
5. Press Ato exit the setting screen.
Alarm time
(Hour : Minutes)
Alarm number
(Page number)

USER’S GUIDE 2441
3
Alarm Operation
Starting from the point the Timekeeping Mode time reaches one hour before an
alarm time the display pattern changes each second. This pre-alarm feature
lets you know that an alarm time is about to be reached. When the actual
alarm time is reached, an alarm tone sounds for 20 seconds.
•Pressing any button stops the pre-alarm operation or the alarm tone
operation.
•The pre-alarm feature works in the Timekeeping Mode only.
•The pre-alarm operation is not performed at all if its start time (one hour
before the specified alarm time) is reached while the watch is not in the
Timekeeping Mode or while the Timekeeping Mode setting screen is on the
display. In this case, the pre-alarm operation will not start when you enter the
Timekeeping Mode.
To test the alarm
In the Alarm Mode, hold down Dto sound the alarm.
To turn an alarm and the Hourly Time Signal on and off
1. In the Alarm Mode, use Dand Bto select an alarm or the Hourly Time
Signal.
2. When the alarm or the Hourly Time Signal you want is selected, press Ato
turn it on and off.
Alarm On Hourly Time Signal On
Hourly time
signal on
indicator
Alarm on
indicator
On/Off status
Red on blue
(Black on white
when off.)
•The alarm on indicator ( ) and the Hourly Time Signal on indicator ( ) are
shown on the display in all modes while these functions are turned on.
•If any alarm is on, the alarm on indicator is shown on the display when you
change to another mode.
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.
To measure times with the stopwatch
Elapsed Time
Start Stop Re-start Stop Clear
Start Split Split release Stop Clear
Start Split Stop Split release Clear
Split Time
Two Finishes
First runner
finishes.
Display time of
first runner.
(SPL displayed)
Second runner
finishes.
Display time of
second runner.
1/100 second
Hours
Minutes
Seconds
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.
Auto Display
Auto Display continually changes the contents of the
digital display.
To turn off Auto Display
Press any button (except for L) to turn off Auto
Display. This returns to the Timekeeping Mode.
To turn on Auto Display
Hold down Cfor about two seconds until the watch
beeps.
•Note that Auto Display cannot be performed while a
setting screen is on the display.
Color Pattern Precaution
Note the following points about the different color patterns used for the display
of this watch.
•When using the red on blue color pattern, red figures may be difficult to read
from some viewing angles.
Auto Return Features
•After you perform any button operation (except for the backlight button) in any
mode, pressing Creturns directly to the Timekeeping Mode.
•If you leave the watch in the e-DATA MEMORY Mode for two or three minutes
without performing any operation, it automatically changes to the
Timekeeping Mode.
•If you leave the watch in the Alarm Mode for one to two hours without
performing any operation, it automatically changes to the Timekeeping Mode.
•If you leave a screen with flashing digits or a cursor on the display for two or
three minutes without performing any operation, the watch automatically
saves any settings you have made up to that point and exits the setting
screen.
Initial Screens
When you enter the Timekeeping, World Time, e-DATA MEMORY, or Alarm
Mode, the data you were viewing when you last exited the mode appears first.
Data and Setting 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 through the data at high speed.
Timekeeping
•With the 12-hour format, the P(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 in the range of 0:00 to 23:59,
without any indicator.
•The year can be set in the range of 2000 to 2039.
•The watch’s built-in full automatic calendar automatically 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 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.
•Daylight Saving Time (DST) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use
Daylight Saving Time.
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, press Lto
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 automatically turns off whenever an alarm sounds.
•Frequent use of the backlight shortens the battery life.