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Operation Guide 2818
Alarms
The Alarm Mode gives you a choice of four one-time
Alarm number
alarms and one snooze alarm.
Also use the Alarm Mode to turn the Hourly Time Signal
(
SIG
) on and off.
There are five alarms numbered
and
SNZ
. You can configure
only. Alarms
time alarms only.
Alarm settings (and Hourly Time Signal settings) are
Home city time
available in the Alarm Mode, which you enter by
Alarm time (Hour : Minutes)
pressing C.
To set an alarm time
1. In the Alarm Mode, use D to scroll through the alarm
screens until the one whose time you want to set is
displayed.
AL1
SIG
2. After you select an alarm, hold down A until the hour
setting of the alarm time starts to flash, which indicates
the setting screen.
This operation automatically turns on the alarm.
3. Use C to move the flashing between the hour and
minute settings.
4. While a setting is flashing, use D (+) and B (–) to change it.
5. Press A to exit the setting screen.
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).
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the
watch is in. In the case of the snooze alarm, the alarm operation is performed a total
of seven times, every five minutes, or until you turn the alarm off.
Pressing any button stops the alarm tone operation.
Performing any one of the following operations during a 5-minute interval between
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen
Displaying the snooze alarm setting screen
To test the alarm
In the Alarm Mode, hold down B to sound the alarm.
To turn an alarm on and off
1. In the Alarm Mode, use D to select an alarm.
Snooze on indicator
2. Press B to toggle it on and off.
Turning on a one-time alarm (
AL4
) displays the alarm on indicator on its Alarm
Mode screen. Turning on the snooze alarm (
displays the alarm on indicator and snooze alarm
indicator on its Alarm Mode screen.
In all modes, the alarm on indicator is shown for any
alarm that is currently turned on. When the snooze
alarm is on, the snooze alarm indicator is displayed in all
Alarm on indicator
modes.
The alarm on indicator flashes while the alarm is
sounding.
The snooze alarm indicator flashes during the 5-minute
intervals between alarms.
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use D to select the Hourly Time
Hourly time signal
Signal (
SIG
on indicator
2. Press B to toggle it on (Hourly Time Signal on
indicator displayed) and off (Hourly Time Signal on
indicator not displayed).
The Hourly Time Signal on indicator is displayed in all
modes when the Hourly Time Signal is turned on.
Stopwatch
The stopwatch lets you measure elapsed time, split times,
Hours
and two finishes.
Minutes
Seconds
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.
Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
The stopwatch measurement operation continues even
Home city time
if you exit the Stopwatch Mode.
1/100 second
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
D
➤
D
➤
D
Start
Stop
Re-start
Split Time
➤
B
➤
B
D
Start
Split
Split release
(SPL displayed)
Two Finishes
D
➤
B
➤
D
Start
Split
Stop
First runner
Second runner
finishes.
finishes.
Display time of
first runner.
AL1
through
AL4
,
SNZ
as a snooze alarm
AL1
through
AL4
can be used as one-
AL2
AL3
SNZ
AL4
AL1
,
AL2
,
AL3
,
SNZ
)
).
➤
D
➤
B
Stop
Clear
➤
D
➤
B
Stop
Clear
➤
B
➤
B
Clear
Split release
Display time of
second runner.
Backlight
The backlight uses an EL (electro-luminescent) panel that
Auto light switch on indicator
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
in the dark.
The auto light switch must be turned on (indicated by
indicator) for it to operate.
AUTO
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
one second.
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 one second,
whenever you position your wrist as described below in any mode. Note that this
watch features a "Full Auto EL Light," so the auto light switch operates only when
available light is below a certain level. It does not turn on the backlight under bright
light.
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
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 any mode, hold down L for about two seconds to toggle the auto light switch on
(
displayed) or off (
not displayed).
AUTO
AUTO
The auto light switch on indicator (
AUTO
auto light switch is turned on.
Battery
This watch is equipped with a solar cell and a rechargeable battery (secondary
battery) that is charged by the electrical power produced by the solar cell. The
illustration shown below shows how you should position the watch for charging.
Example: Orient the watch so its face
is pointing at a light source.
Note that charging efficiency drops
when any part of the solar cell is
blocked by clothing, etc.
The illustration shows how to position
a watch with a resin band.
Important!
Storing the watch for long periods in an area where there is no light or wearing it in
such a way that it is blocked from exposure to light can cause rechargeable battery
power to run down. Be sure that the watch is normally exposed to bright light
whenever possible.
This watch employs a solar cell that converts light into electricity that charges a built-
in rechargeable battery. Normally, the rechargeable battery should not need
replacement, but after very long use over a number of years, the rechargeable
battery may lose its ability to achieve a full charge. Should you notice problems with
getting the rechargeable battery to a full charge, contact your dealer or CASIO
distributor about having the rechargeable battery replaced.
The rechargeable battery should be replaced with a CASIO-specified CTL1616
battery only. Other rechargeable batteries can cause damage to the watch.
All data stored in memory is deleted, and the current time and all other settings
return to their initial factory defaults whenever battery power drops to Level 4 and
when you have the battery replaced.
Turn on the watch's Power Saving function and keep it in an area normally exposed
to bright light when storing it for long periods. This helps to keep the rechargeable
battery from going dead.
Battery Power Indicator
The battery power indicator on the display shows you the current status of the
rechargeable battery's power.
Level
Battery Power Indicator
1
Battery power
indicator
2
3
Charge
Soon Alert
4
More than
40°
) is on the display in all modes while the
Solar cell
Function Status
All functions enabled.
All functions enabled.
Beeper tone, backlight, calibration
signal reception, display, and
buttons are disabled.
All functions, including
timekeeping, are disabled.
3
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