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Operation Guide 2615 3015
Alarm Operation
The alarm sounds at the preset time for about 10 seconds. 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 or change it to a one-time alarm.
Note
• 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 Alarm 1 setting screen
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To turn Alarms 2 2 2 2 2 through 5 5 5 5 5 on and off
1. In the Alarm Mode, use D to select a one-time alarm
(alarm number 2 through 5).
2. Press B to toggle the displayed alarm on and off.
• Turning on a one-time alarm (2 through 5) displays the
one-time alarm on indicator (
• The one-time alarm on indicator is displayed in all
modes.
• If any alarm is on, the alarm on indicator is shown on
the display in all modes.
One-time alarm on
indicator
To select the operation of Alarm 1 1 1 1 1
1. In the Alarm Mode, use D to select Alarm 1.
2. Press B to cycle through the available settings in the sequence shown below.
Snooze alarm on indicator (
) and one-time alarm on indicator (
One-time alarm on
Snooze alarm on
• The applicable alarm on indicator (
or
alarm is turned on.
• The snooze alarm on indicator (
) flashes during the 5-minute intervals between
alarms.
• Displaying the Alarm 1 setting screen while the snooze alarm is turned on
automatically turns off the snooze alarm (making Alarm 1 a one-time alarm).
To turn the hourly time signal on and off
1. In the Alarm Mode, use D to select the Hourly Time
Signal.
2. Press B to toggle it on and off.
• Turning on the Hourly Time Signal displays the hourly
time signal on indicator (
• The hourly time signal on indicator is displayed in all
modes.
Hourly time signal on
indicator
Stopwatch
The stopwatch lets you measure elapsed time, split times,
Timekeeping
and two finishes.
• The display range of the stopwatch is 59 minutes, 59.99
Mode time
Seconds
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.
• Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
1/100 Second
Minutes
• 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.
) on its screen.
)
Alarm off
) is displayed in all modes when an
) on its screen.
➤
D
➤
B
Stop
Clear
➤
D
➤
B
Stop
Clear
B
B
➤
➤
Split release
Clear
Display time of
second runner.
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.
Module 2615
To turn on the backlight manually
Auto light switch
In any mode, press L to illuminate the display for about
on indicator
one second.
• The above operation turns on the backlight regardless of
the current auto light switch setting.
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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.
• Wear the watch on the outside of your wrist.
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
startle 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 (auto light switch on indicator displayed) and off (auto light switch on
indicator not displayed).
• The auto light switch on indicator is on the display in all modes while the auto light
switch is turned on.
Power Supply
This watch is equipped with a solar cell and a special 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.
• The illustration shows how to position
a watch with a resin band.
• Note that charging efficiency drops
when any part of the solar cell is
blocked by clothing, etc.
• You should try to keep the watch
outside of your sleeve as much as
possible. Even if the face of the watch
is only partially blocked from light,
charging will be significantly reduced.
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. Make sure that the watch is normally exposed to bright light
whenever possible.
• This watch uses a special rechargeable battery to store power produced by the solar
cell, so regular battery replacement is not required. However, after very long use, the
rechargeable battery may lose its ability to achieve a full charge. If you experience
problems getting the special rechargeable battery to fully charge, contact your
dealer or CASIO distributor about having it replaced.
• Never try to remove or replace the watch's special battery yourself. Use of the wrong
type of battery can damage the watch.
• 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.
Battery Power
Level
Indicator
Module 2615 Module 3015
1
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2
Battery power indicator
3
(Charge Soon Alert)
4
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More than
40°
Solar cell
Function Status
All functions enabled.
All functions enabled.
Beeper tone, backlight,
display, and buttons are
disabled.
All functions, including
timekeeping, are disabled.
3
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