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2345/2347-5
4. After all the settings are the way you want, press A to exit the setting
screen.
• The on/off status of Auto-repeat is indicated on the normal Countdown
Alarm Mode screen as shown below. To view the Progress Beeper ON/OFF
setting, you must display the setting screen.
To use the countdown alarm
1. Press D while in the Countdown Alarm Mode to start the countdown.
2. Press D again to stop the countdown.
• You can resume countdown by pressing D.
3. Stop the countdown and then press B to reset the countdown time to its
starting value.
A
Auto-repeat ON Auto-repeat OFF
Auto-repeat on indicator
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A
AB
CD
BATTERY REPLACEMENT
ALWAYS LEAVE BATTERY REPLACEMENT UP TO THE DEALER
WHERE YOU BOUGHT THE WATCH OR TO AN AUTHORIZED CASIO
DISTRIBUTOR. BE SURE TO SHOW THE FOLLOWING INFORMATION
TO THE PERSON REPLACING THE BATTERY.
Attention dealer or CASIO distributor
Be sure to use the following procedure when replacing the battery.
1. Remove the back cover screws, and then remove the back cover.
2. Pull up the battery holder.
3. Remove the old battery and load a new one.
4. Close the battery holder.
5. Touch the AC contact and the battery (+) side with metallic tweezers.
6. Replace the back cover and secure it with the screws.
7. Check the display of the watch. If the message “OPEn” is on the display, it
means the back cover is not closed correctly. Remove the back cover and
carefully replace it again.
* Absence of the “OPEn” message does not necessarily indicate an air-tight
seal.
Other tests are required to check for air tightness.
STOPWATCH MODE
The Stopwatch Mode lets you record elapsed time, split times, and two
finishes. The range of the stopwatch is 59 minutes, 59.99 seconds.
Stopwatch functions are available in the Stopwatch Mode, which you can
enter using C .
1 second
later
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Stopwatch Mode indicator
1/100 second
Minutes
Seconds
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DDB
Stop ClearStart
(a) Elapsed time measurement
(b) Split time measurement
(c) Split time and 1st-2nd place times
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DDB
Start Stop Clear
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DBB
Start Split release Clear
Record time of
second runner.
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D
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B
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D
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D
Stop
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B
Split
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B
Split
First runner
finishes.
Re-start
Split release
Stop
Second runner finishes.
Record time of first runner.
C
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WARNING INDICATORS
This watch displays warning indicators to let you know when the sensor is
malfunctioning and when battery power is low.
Err Display – Sensor Malfunction Warning
This message indicates malfunction of the
watch’s pressure sensor circuitry. When
sensor malfunction initially occurs, the watch
stops taking measurements, the “Err” message
appears, and a buzzer sounds for about three
seconds.
• If the sensor is malfunctioning when it comes time for a barometric pressure
measurement to be taken, the barometric pressure value appears as “– – – –”
on the display and the corresponding point on the barometric pressure graph is
left blank.
• Whenever there is a sensor malfunction, be sure to take the watch to an
authorized CASIO distributor or Service Center as soon as possible.
Alteration of and Graph – Temporary Low Power
Warning
Temporary low power is indicated on the display when the battery level
temporarily drops below a certain level.
• Sensors are disabled while the temporary low power warning is being
indicated, but the light and tones are operational.
• Very low temperature can cause the low power warning to appear even
though battery power is not low. The low power warning should disappear
when the watch is restored to normal temperature.
• If the low power warning appears under normal temperature, replace the
battery as soon as possible.
Alteration of and – Battery Usage Warning
The watch automatically monitors your use of certain high battery drain
functions. The battery usage warning display appears whenever the watch
determines that your use of these functions is putting a heavy load on the
battery.
• Sensors, the light, and tones are disabled while the battery usage warning
is on the display.
• The following are the trigger values for the functions that are monitored for
battery usage.
Light: 100 Sensor Operations: 1,000
Alarm: 100 Mode Change: 1,000
• The battery usage warning appears whenever any single function is
performed the number of times noted above, or for any proportional number
of operations of multiple functions (such as 50 light operations and 50 alarm
operations, 50 light operations and 500 mode change operations, etc.).
• The monitor counter continues to be incremented as long as the duration
between two high power drain operations is less than 15 minutes. The
counter is reset to 0 whenever 15 minutes pass between operations.
Display – Low Power Warning
The low power warning appears to let you
know that battery power is low.
• Sensors, the light, and tones are disabled
while the low power warning is on the
display.
• The low power warning may appear under
very low temperatures, although battery
power is not low. Correct operation should
resume when the watch returns to normal
temperature.
• If the low power warning appears under normal temperatures, have the
watch’s battery replaced as soon as possible.
• Be sure to read “BATTERY REPLACEMENT” before trying to replace the
battery.
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