Casio 2512 User Manual
USER’S GUIDE 2512
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to carefully read this manual and keep it on hand for later reference
when necessary.
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 “Battery” for important information you need to know when
exposing the watch to bright light.
If the display of the watch is blank...
Sleep indicator
If the sleep indicator ( ) is on the display, the display is
blank because the watch’s Power Saving function has
shut it to conserve power. Power Saving automatically
turns off the display and puts the watch into a sleep state
whenever your watch is left in an area where it is dark for
a certain period.
• 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* or if you press any button.
*
It can take up to five seconds for the display to turn on.
• See “Power Saving Function” for more information.
General Guide
• Press C to change from mode to mode.
• In any mode, press L to illuminate the display.
World Time Mode
Timekeeping Mode
Press C.
▲
▲
About This Manual
Alarm Mode
▲
• 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.
Data Memory
Mode
▲
Stopwatch Mode
▲
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
• Pressing A displays the Last Signal screen (date and time the time calibration
signal was last received) in the Timekeeping Mode.
Month – Day Day of week
Press A.
▲
▲
PM
indicator
Hour : Minutes
Current Time Setting
This watch automatically adjusts its time setting in accordance with a time calibration
signal. You can also perform a manual procedure to set the time and date, when
necessary.
• Before using the watch in Western Europe, first use the procedure under “Setting Up
the Watch for Use in Western Europe” to set the time in accordance with a time
calibration signal.
• Note that after you set your Home City (the city where you normally use the watch)
code, you must also turn on the watch’s time calibration signal receiver if you want
to enable auto time calibration. See “About Auto Receive” for more information.
• See “Setting the Time and Date Manually” for information about manual settings.
Setting Up the Watch for Use in Western Europe
You need to make the following three settings before using this watch in Western
Europe. The following provides a general overview of the setting procedure. For full
details, see “Setting the Time and Date Manually” and “Time Calibration Signal
Reception”.
• Specify the city code for your Home City (the city where you will normally use the
watch).
• Select the auto summer time (DST) setting.
• Perform the manual time calibration signal receive operation to set the current time.
To set up the watch for use in Western Europe
GMT differential
City code
Seconds
1. In the Timekeeping Mode, press B. This causes the
current auto receive on/off setting (the receive indicator)
to flash, which indicates the setting screen.
2. Press C to move the flashing to the city code setting.
3. Use D(+) and A(–) to select the city code you want to
use as your Home City.
Receive indicator
Last Signal Screen
Receive date
Receive time
• The following are the city codes for major cities in the
Western Europe time zones.
BER and PAR: Berlin, Paris, Milan, Rome,
LON: London
4. Press C to display the summer time (DST) setting
screen.
5. Use D to select AUTO DST.
• AUTO DST specifies auto switching between Daylight
Saving Time and Standard Time.
6. Press B to exit the setting screen.
7. Hold down A for about two seconds until the watch
beeps.
• Release A and the message receiving appears to
indicate that signal reception has started.
• Time calibration signal reception takes from two to six
Receive indicator
• If the watch is indoors, we recommend that you place the watch near a window to
allow better signal reception.
• After signal reception is complete, the display of the watch changes to the Last
Signal screen.
Time Calibration Signal Reception
This watch is designed to pick up a time calibration signal and update its time setting
in accordance with the signal. There are two different methods you can use to receive
the signal: Auto Receive and Manual Receive. With Auto Receive, the watch
automatically receives the calibration signal three times each day and makes
appropriate adjustments. With Manual Receive, you perform a specific button
operation to receive the calibration signal.
Before performing a signal receive operation, remove the watch from you wrist and
position it as shown in the illustrations below.
• If your watch has a resin band, pass the end of the band through the band loop and
place the watch on a stable surface.
minutes. Take care that you do not move the watch
during this time.
Resin band Metal band
Amsterdam, Hamburg,
Frankfurt, Vienna
Pass through band loop.
Note
• If you are using the time calibration signal to set the time for this watch, be sure to
correctly set your Home City. Otherwise, there is the chance that the watch will not
set the correct time. See “Setting the Time and Date Manually” for details.
• Note that signal reception is possible only when the watch is within range of a time
calibration signal transmitter, and BER, PAR, LON, or ATH is selected as the Home
City code.
• See “City Code Table” for a complete list of available city codes.
• The current time setting in accordance with the time calibration signal takes priority
over any time settings you make.
• Auto receive is turned on when the watch is shipped from the factory.
• See the information under “Time Calibration Signal Reception” if you experience
problems with time calibration signal reception.
1
USER’S GUIDE 2512
To perform manual time calibration signal reception
1. Place the watch on a stable surface so its top (12 o’clock side) is facing in the
general direction of the signal transmitter.
• Note that signal reception is poor if the watch is on its back or side.
Receive indicator
Note
• To interrupt a receive operation and return to the Timekeeping Mode, press A.
• If the receive operation is unsuccessful, the message ERROR! appears on the
display for about one or two minutes. After that, the watch returns to the
Timekeeping Mode.
• You can also change from the Last Signal or ERROR! screen to the normal
timekeeping screen by pressing A.
About the Receive Indicator
The receive indicator shows the strength of the calibration signal being received. For best
reception, be sure to keep the watch in a location where signal strength is strongest.
Weak
• Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the receive indicator to indicate signal strength.
• Use the receive indicator as a guide for checking signal strength and for finding the
best location for the watch during signal receive operations.
• The receive indicator remains on the display in all modes following reception of the
time calibration signal and calibration of the watch’s time setting. The receive
indicator does not appear if signal reception was unsuccessful or after manual
adjustment of the current time setting.
About Auto Receive
When auto receive is turned on, the watch automatically starts to receive the time
calibration signal when the time in the Timekeeping Mode reaches 2:00 AM, 4:00 AM
and 6:00 AM each day (calibration times).
Note
• The auto receive operation is performed only if the watch is in the Timekeeping or
World Time Mode when one of the calibration times is reached.
It is not performed if a calibration time is reached while you are making settings
(while settings are flashing on the display), while an alarm is sounding, or while a
silent alert operation is being performed.
• Auto receipt of the calibration signal is designed to be performed early in the
morning, while you sleep (provided that the Timekeeping Mode time is set correctly).
Before going to bed for the night, remove the watch from your wrist, and put it in a
location where it can easily receive the signal.
• The receive indicator indicates that either the 2:00 AM, 4:00 AM, or 6:00 AM
calibration signal reception was successful. Note, however, that the receive indicator
is cleared from the display at 3:00 AM each day.
• If you do not see the receive indicator except for the above reason, it means there
was some problem with the calibration reception operation. Either perform reception
manually, or make sure the watch is set up properly to receive the time calibration
signal for the next automatic reception time.
• Though this watch is designed to receive both time data (hour, minutes, seconds)
and date data (year, month, day), certain signal conditions can limit reception to time
data only.
• The receive indicator (
receive both time and date data. It does not appear when only time data is received.
When time and date data is received: Receive indicator (
When time data only is received: Receive indicator (
• Normally, the signal reception date shown by the Last Signal screen is the date data
included in the received time calibration signal. When only time data is received,
however, the Last Signal screen shows date as kept in the Timekeeping Mode at the
time of signal reception.
• When auto receive is turned on, the watch receives the calibration signal for two to
six minutes each day when the Timekeeping Mode time reaches 2:00 AM, 4:00 AM
and 6:00 AM. Do not operate any of the watch’s buttons within six minutes prior to or
following the calibration times. Doing so can interfere with correct calibration.
• Remember that reception of the calibration signal depends on the time kept in the
Timekeeping Mode. The receive operation will be performed whenever the display
shows 2:00 AM, 4:00 AM and 6:00 AM, regardless of whether or not the
Timekeeping Mode time is actually the correct time.
• When two or three receptions are successful, the watch uses the data of the last
reception for calibration. When only one reception is successful, the watch uses the
data of the successful reception.
To turn auto receive on and off
2.In the Timekeeping Mode, hold down A for about two
seconds until the watch beeps.
• Release A and the message receiving appears to
indicate that signal reception has started.
• Time calibration signal reception takes from two to six
minutes. Take care that you do not move the watch
during this time.
• After signal reception is complete, the display of the
watch changes to the Last Signal screen.
• The receive indicator indicates that the calibration time
reception attempt was successful.
Strong
) appears only when the watch is able to successfully
) appears.
) does not appear.
1.In the Timekeeping Mode, press B. This causes the
current auto receive on/off setting (the receive indicator)
to flash, which indicates the setting screen.
2.Press D to toggle auto receive on (ON) and off (OFF).
3.Press B to exit the setting screen.
Setting the Time and Date Manually
Make sure you select your Home City code (the city code whose time and date you
are setting) before change the current time and date settings. World Time Mode times
are all displayed in accordance with the Timekeeping Mode settings. Because of this,
World Time Mode times will not be correct if you do not select the proper Home City
code before setting the time and date in the Timekeeping Mode.
To set the current time and date manually
Auto
Receive
Power Saving
on/off
3. When the setting you want to change is flashing, use A and/or D to change it as
described below.
Auto Receive
City code
DST
12/24-Hour format
Hour, Minutes
Seconds
Month, Day, Year
Power Saving
on/off
4. Press B to exit the setting screen.
• The auto receive setting is used for time calibration signal reception only. See
“About Auto Receive” for details.
• See “City Code Table” for a complete list of available city codes.
• 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.
1.In the Timekeeping Mode, press B. This causes the
current auto receive on/off setting (the receive indicator)
to flash, which indicates the setting screen.
2.Press C to move the flashing in the sequence shown
below to select other settings.
City Code
Day
DST
Month
ScreenSetting
12/24-Hour
Format
Year Minutes
Button Operations
Press D to toggle auto receive on and off.
Use D (+) and A (–) to change the
setting.
Press D to toggle between Daylight Saving
Time (ON) and standard time (OFF).
• Pressing D performs a different operation
when BER, PAR, LON or ATH is selected
as Home City Code. See “Auto Summer
Time (DST) Switching”.
Press D to toggle between 12-hour (12H)
and 24-hour (24H) timekeeping.
Use D (+) and A (–) to change the setting.
Press D to reset the seconds to 00.
Use D (+) and A (–) to change the
setting.
Press D to toggle the Power Saving on
(ON) and off (OFF).
Seconds
Hour
World Time
World Time shows the current time in 30 cities (29 time
GMT
City code
differential
Current time in the
selected city code
To view the time in another city code
While in the World Time Mode, press D to scroll through the city codes (time zones)
to the east or A to scroll to the west.
• If the current time shown for a city is wrong, check your Timekeeping Mode time and
Home City settings and make the necessary changes.
To toggle a city code time between standard time and Daylight Saving Time
• Daylight Saving Time (DST) advances the time setting by one hour from Standard
Time. Remember that the not all countries or even local areas use Daylight Saving
Time.
• The watch will perform a signal receive operation even if it is in the World Time
Mode when a calibration time is reached. If this happens, the World Time Mode time
settings will be adjusted in accordance with the Timekeeping Mode’s Home City
code time.
zones) around the world.
• For full information on city codes, see the “City Code
Table”.
• The current time for all city codes in the World Time
Mode is calculated in accordance with the Greenwich
Mean Time (GMT) differential for each city, based on the
your Home City time setting.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
1.In the World Time Mode, use A and D to display the
city code (time zone) whose standard time/Daylight
Saving Time setting you want to change.
2.Press B 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.
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