Casio 2291 Owner's Manual
Module No. 2291
2291-1
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.
(Light)
• 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.
GENERAL GUIDE
• Press C to change from mode to mode.
• In any mode, press L to illuminate the display.
• Pressing C in the Timekeeping Mode displays either the Countdown Timer or Stopwatch screen. The screen that appears first is the one that was last on the display when you exited the
Countdown Timer/Stopwatch Mode.
Alarm ModeTimekeeping Mode Countdown Timer/Stopwatch Mode
GETTING ACQUAINTED
Stopwatch
COUNTDOWN TIMER
Hold down .
Minutes
Seconds
1.In the Countdown Timer Mode, hold down A until the
hour digit of the countdown time starts to flash, which
indicates the setting screen.
2.Press C to move the flashing between the hours and
minutes.
3.While a setting is flashing, press D to increase it.
• To set the countdown start time to 24 hours, set
0:00.
4.Press A to exit the setting screen.
1.In the Countdown Timer Mode, hold down A until the
hour digit of the countdown time starts to flash, which
indicates the setting screen.
2.Press B to toggle the timing method between match
race timing (
(
3.Press A to exit the setting screen.
indicator) and ocean race timing
indicator).
Press .
TIMEKEEPING
Month – Day
Day of week
PM indicator
Hour : Minutes
To set the time and date
Seconds
• See “Daylight Saving Time (DST)” for details on the DST setting.
3. While a setting is flashing, press D to increase it.
4. Press A to exit the setting screen.
Note
• The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
• 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.
To toggle between the 12-hour/24-hour timekeeping formats
In the Timekeeping Mode, hold down B for about two seconds to toggle between 12-
hour and 24-hour timekeeping.
• With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 p.m. and no indicator appears to the left of the
hour digits 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, with 24
indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also
applied in all modes.
Daylight Saving Time (DST)
Daylight Saving Time automatically 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
Use the Timekeeping Mode to set and view the current
time and date.
To reset the second’s count to zero
1.In the Timekeeping Mode, hold down A until the
second’s digits start to flash, which indicates the setting
screen.
2.Press D to reset the second’s count to 00.
• Pressing D while the second’s count is in the range
of 30 to 59 resets the seconds to 00 and adds 1 to
the minutes. In the range of 00 to 29, the minute’s
Seconds
count is unchanged.
3.Press A to exit the setting screen.
1.In the Timekeeping Mode, hold down A until the
second’s digits start to flash, which indicates the setting
screen.
2.Press C to move the flashing in the sequence shown
below to select other settings.
Month
Hour
Year
DST
Day
1.In the Timekeeping Mode, hold down A until the
second’s digits start to flash, which indicates the setting
screen.
2.Press C to move the flashing to the DST On/Off
setting.
3.Press D to toggle between Daylight Saving Time (ON)
and standard time (OFF).
4.Press A to exit the setting screen.
• The DST indicator appears on the display to indicate
that daylight saving time is turned on.
Minutes
Countdown Timer
Hold
down .
The start time of the countdown timer can be set within a range of 1 minute to 24
hours. The operation of the countdown timer is configured to make it useful for timing
yacht races.
• All of the operations in this section are performed in the Countdown Timer Mode.
Use the procedure below to switch between the Countdown Timer and Stopwatch.
To switch between the Countdown Timer and Stopwatch
1. Enter the Countdown Timer/Stopwatch Mode.
2. Hold down D for about two seconds to toggle the Countdown Timer Mode and
Stopwatch Mode.
Countdown Timer Mode Stopwatch Mode
Hours
• Note that the above steps work only when the currently displayed screen is
initialized (reset). The Countdown Timer is initialized when its start time is displayed,
while the Stopwatch is initialized when it shows all zeros.
• See “STOPWATCH” for information about using the Stopwatch.
Countdown Timer Operation
The countdown timer counts down the displayed time in one-second increments,
starting from a countdown start time set by you. A progress beeper beeps each
minute, and each second for the last 10 seconds of the countdown. The operation of
the beeper is very useful for match race and ocean race timing.
• Before using the Countdown Timer, you should set the countdown start time and
select either match race timing or ocean race timing as the timing method.
Match Race Timing
When you set up the countdown timer for match race timing, the countdown
automatically restarts from the countdown start whenever zero is reached. This type
of timing is best for match races, with start at regular intervals (every five minutes, for
example).
Ocean Race Timing
With ocean race timing, the stopwatch starts timing automatically as soon as the
countdown reaches zero. This type of timing is best for ocean racing, which is
conducted based on accumulated time following the start.
To set the countdown time
To select the timing method
To use the countdown timer
Press B while in the Countdown Timer Mode to start the countdown timer.
• Press B while a countdown operation is in progress to pause it. Press B again to
resume the countdown.
• To completely stop a countdown operation, first pause it (by pressing B), and then
press D. This returns the countdown time to its starting value.
Note
• Match race timing continues until you stop it. Note that the progress beeper can
down the battery power after long periods, so you should stop the timing operation
when you are not using the countdown timer.
• In the case of ocean race timing, stopwatch operation that starts at the end of the
countdown is the same as that for normal Stopwatch Mode timing. See “To measure
times with the stopwatch” for more information. Note that initializing the stopwatch
(clearing it to all zeros) after an ocean race timing operation also initializes the
countdown timer by returning it to its starting value.
2291-2
Auto light switch on
indicator
More than 15 degrees
too high
STOPWATCH
1/100 second
Hours
Minutes
To measure times with the stopwatch
Elapsed Time
Start
Split Time
Start
Two Finishes
Start
The stopwatch lets you measure elapsed time, split times,
and two finishes.
• The display range of the stopwatch is 199 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.
• All of the operations in this section are performed in the
Seconds
Stopwatch Mode. See “To switch between the
Countdown Timer and Stopwatch” for information about
entering the Stopwatch Mode.
Stop Re-start Stop Clear
Split Split release Stop Clear
Split Stop Split release Clear
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
ALARM
Month – Day
Hour : Minutes
Alarm number
Alarm Types
The alarm type is determined by the settings you make, as described below.
• Daily alarm
Set the hour and minutes for the alarm time. This type of setting causes the alarm to
sound everyday at the time you set.
• Date alarm
Set the month, day, hour and minutes for the alarm time. This type of setting causes
the alarm to sound at the specific time, on the specific date you set.
• 1-Month alarm
Set the month, hour and minutes for the alarm time. This type of setting causes the
alarm to sound everyday at the time you set, only during the month you set.
• Monthly alarm
Set the day, hour and minutes for the alarm time. This type of setting causes the alarm
to sound every month at the time you set, on the day you set.
To set an alarm time
2. After you select an alarm, hold down A until the hour digits of the alarm time start
to flash, which indicates the setting screen.
• This operation automatically turns on the alarm.
3. Press C to move the flashing in the sequence shown below to select other
settings.
Hour Minutes
4. While a setting is flashing, press D to increase it.
• To set an alarm that does not include a month (Daily alarm, Monthly alarm), set x
for the month. Press D until the x mark appears (between 12 and 1) while
month setting is flashing.
• To set an alarm that does not include a day (Daily alarm, 1-Month alarm), set xx
for the day. Press D until the xx mark appears (between 31 and 1) while the
day setting is flashing.
• 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. (P indicator).
5. Press A to exit the setting screen.
To turn an alarm and the Hourly Time Signal on and off
Hourly time signal on
indicator
3 (on)
Alarm 1 (on)
4 (off)
2 (off)
You can set up to five independent alarms with hour,
minutes, month, and day. When the 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 time (hour and minutes) and alarm number
(1 though 5) indicates an alarm screen. :00 is shown
in place of the alarm time on the Hourly Time Signal
screen.
• Alarm settings (and Hourly Time Signal settings) are
available in the Alarm Mode, which you can enter using
C.
1.In the Alarm Mode, press D to select the alarm whose
time you want to set.
Alarm 1 Alarm 2
Time Signal Alarm 5
Month Day
1.In the Alarm Mode, press D to select an alarm or the
Hourly Time Signal.
2.When the alarm or the Hourly Time Signal you want is
selected, press B to turn it on and off.
• The lower graphic area shows the current on/off status
of each of the five alarms.
• The
indicator appears on the display whenever the
Hourly Time Signal is turned on.
• 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.
5 (on)
Alarm 3
Alarm 4
Alarm Operation
The alarm sounds at the preset time for about 20 seconds, or until you stop it by
pressing any button.
• The corresponding alarm on indicator flashes in the lower graphic area while the
alarm is sounding.
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
BACKLIGHT
The backlight uses an EL (electro-luminescent) panel that
causes the entire display to glow for easy reading in the
dark. The watch’s auto light switch automatically turns on
the backlight when you angle the watch towards your
face.
• The auto light switch must be turned on (indicated by
the auto light switch on indicator) for it to operate.
• See “Backlight Precautions” for other important
information about using the backlight.
To turn on the backlight manually
In any mode, press L to illuminate the display for about two seconds.
• The above operation turns on the backlight regardless of the current auto light
switch setting.
About the Auto Light Switch
Turning on the auto light switch causes the backlight to turn on for about two seconds,
whenever you position your wrist as described below in any mode.
• Be sure to wear the watch on the outside of your left wrist while using the auto light
switch.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you more than 40 degrees causes the backlight to turn on.
Parallel to ground More than 40
Warning!
• Always make sure you are in a safe place whenever you are reading the
display of the watch using the auto light switch. Be especially careful when
running or engaged in any other activity that can result in accident or injury.
Also take care that sudden illumination by the auto light switch does not
surprise or distract others around you.
• When you are wearing the watch, make sure that its auto light switch is
turned off before riding on a bicycle or operating a motorcycle or any other
motor vehicle. Sudden and unintended operation of the auto light switch can
create a distraction, which can result in a traffic accident and serious
personal injury.
To turn the auto light switch on and off
In the Timekeeping Mode, hold down D for about two seconds to toggle the auto light
switch on (
• The auto light switch on indicator (
light switch is turned on.
displayed) or off ( not displayed).
) is on the display in all modes while the auto
°
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 Return Features
If you leave a screen with flashing digits on the display for two or three minutes
without performing any operation, the watch automatically saves anything you have
input up to that point and exits the setting screen.
Data and Setting Scrolling
The D button is used to scroll through setting screen data on the display. In most
cases, holding down this button during a scroll operation scrolls through the data at
high speed.
Backlight Precautions
• 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.
• The backlight remains lit for about two seconds from the point you press the button,
even if it is already lit when you press the button. If you keep the button depressed
for two seconds or more, the backlight automatically turns off.
• Frequent use of the backlight shortens the battery life.
Auto light switch precautions
• In order to protect against running down the battery, the auto light switch
automatically turns off approximately six hours after you turn it on.
• Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light
switch to operate when it is not needed, which shortens battery life. If you want to
wear the watch on the inside of your wrist, turn off the auto light switch feature.
• Static electricity or magnetic force can interfere with proper operation of the auto
light switch. If the backlight does not light, try moving the watch back to the starting
position (parallel with the ground) and then tilt it back toward you again. If this does
not work, drop your arm all the way down so it hangs at your side, and then bring it
back up again.
• Under certain conditions, the backlight may not light until about one second after
you turn the face of the watch towards you. This does not necessarily indicate
malfunction of the backlight.
• The backlight may not light if the face of the watch is
more than 15 degrees above or below parallel. Make
sure that the back of your hand is parallel to the ground.
• The backlight turns off in about two seconds, even if you
keep the watch pointed towards your face.
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