Casio 2228 Owner's Manual
Module No. 2228
Hour Minutes
• Press C to change from mode to mode.
Timekeeping Mode
Press C.
Alarm Mode Stopwatch Mode
TIMEKEEPING MODE
Press B.
GENERAL GUIDE
Month - Day
PM indicator
Hour : Minutes
• In the Timekeeping Mode, press D to switch between the 12-hour and 24-hour
format.
• When the 12-hour format is selected, “p.m.” times are indicated on the display by P,
while “a.m.” time are indicated by A. No indicators are used with the 24-hour format.
• In the Timekeeping Mode, press B to switch between the month-day/day of the
week display and day of the week/day/G mark display.
Setting the Time and Date
There are two different ways to set the time and date. The procedure you should use
depends on whether you want to make major changes or minor changes to the current setting.
When you want to do this:
Make major changes to the time and
date setting (before using the watch
for the first time, after having the battery replaced, etc.)
Make minor adjustments (within about
30 minutes of the current setting) to
the time setting
To make major time and date settings
1.Hold down A until the seconds digits start to flash.
2.Press C to move the selection around the display in the following sequence.
Seconds
Day
3.While the seconds digits are selected (flashing), press D to reset them to 00. If
you press D while the seconds count is in the range of 30 to 59, they are reset to
00 and 1 is added to the minutes. If the seconds count is in the range of 00 to 29,
the minutes count is unchanged.
4.While the DST∗ setting is selected (DST on indicator is flashing), press D to toggle
it on (on) and off (OF).
5. While any other digits (besides seconds), are selected (flashing), press D to in-
crease the number. Holding down D changes the digits at high speed.
• The date can be set with the range of January 1, 2000 to December 31, 2039.
6.After you set the time and date, press A to return to the Timekeeping Mode.
• If you do not operate any button for a few minutes while a selection is flashing, the
flashing stops and the watch goes back to the Timekeeping Mode automatically.
• The day of the week is automatically set in accordance with the date.
• 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 the replacement of the watch’s battery.
∗
Daylight Saving Time (DST), which is also sometimes called “summer time” advances the time for one hour, as is the custom in some areas during the summer.
Remember that not all countries or even local areas use Daylight Saving Time.
To zero-reset the minutes and seconds (EASY ADJUST)
1.Hold down B and D at the same time on which you want to zero-reset the min-
utes and seconds arrives.
• The watch beeps to let you know that the minutes and seconds were reset to 00 00.
• If you press B and D while the minutes count is in the range of 30 to 59, they are
reset to 00 and 1 is added to the hour. If the minutes count is in the range of 00 to
29, the hour count is unchanged.
2.Release buttons B and D.
• Though the beep may sound slightly after the point you press both buttons, the
zero-reset setting should be correct.
Month
Use this procedure:
“To make major time and date settings”
“
(EASY ADJUST
DST on/off
Day of week
Seconds
DST on indicator
To zero-reset the minutes and seconds
Year
)”
Hour
Minutes
• In any mode, press L to illuminate the display for about 4 seconds. If you turn on
the backlight in the Timekeeping Mode, the figures on the display disappear for
about the final two seconds the backlight is on.
• The backlight of this watch employs an electro-luminescent (EL) light, which loses
its illuminating power after very long term use.
• Frequent use of the backlight shortens the battery life.
• The watch emits an audible sound whenever the display is illuminated. This does
not indicate malfunction of the watch.
• The illumination provided by the backlight may be hard to see when viewed under
direct sunlight.
• The backlight automatically turns off whenever an alarm sounds.
About the animation display
• Turning on the backlight in any mode (except when a setting screen is on the display) causes one of 72 different animated figures to appear on the display. The
figure that appears depends on when you press the backlight button.
ALARM MODE
ABOUT THE BACKLIGHT
Alarm on indicator
Hourly time signal
on indicator
Mode indicator
Current time
Hour : Minutes
3.Press D to increase the number. Holding down D changes the digits at high
speed.
• The format (12-hour and 24-hour) of the alarm time matches the format you select
for normal timekeeping.
• When setting the alarm time using the 12-hour format, take care to set the time
correctly as morning or afternoon.
4.After you set the alarm time, press A to return to the Alarm Mode.
• If you do not operate any button for a few minutes while a selection is flashing, the
flashing stops and the watch goes back to the Alarm Mode automatically.
To stop the alarm
• Press any button to stop the alarm after it starts to sound.
To turn the Daily Alarm and Hourly Time Signal on and off
Press B while in the Alarm Mode to change the status of the Daily Alarm and Hourly
Time Signal in the following sequence.
To test the alarm
Hold down D while in the Alarm Mode to sound the alarm.
When the Daily Alarm is turned on, an alarm sounds for
20 seconds at the preset time each day. When the Hourly
Time Signal is turned on, the watch beeps every hour on
the hour.
• If you do not operate any button for a few minutes while
in the Alarm Mode, the watch goes back to the Timekeeping Mode automatically.
To set the alarm time
1.Hold down A until the hour digits start to flash on the
display. The hour digits flash because they are
At this time the Alarm is automatically turned on.
2.Press C to change the selection in the following se-
quence.
Both OFFBoth ON
Daily Alarm
only
Hourly Time
Signal only
selected
STOPWATCH MODE
Mode indicator
Current time
Minutes
Seconds
(a) Elapsed time measurement
Start
(b) Split time measurement
The Stopwatch Mode lets you measure elapsed time, split
times, and two finishes. The range of the stopwatch is 59
minutes, 59.99 seconds.
• If you do not operate any button for a few minutes while
the all-zero screen is on the display in the Stopwatch
Mode, the watch goes back to the Timekeeping Mode
automatically.
1/100
second
Stop Re-start Stop Clear
.
Start
(c) Split time and 1st-2nd place times
Start
Split Split release Stop Clear
Split Stop Split release Clear
First runner
finishes.
Second runner
finishes.
Record time of
first runner.
Record time of
second runner.
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