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Countdown Timer
You can set the countdown timer within a range
Hours
Seconds
of one minute to 24 hours. An alarm sounds
Minutes
when the countdown reaches zero.
• All of the operations in this section are
performed in the Countdown Timer Mode,
which you enter by pressing C.
Configuring the Countdown Timer
The following are the settings you should
configure before actually using the countdown
timer.
Countdown start time
• See "To configure the countdown timer" for
information about setting up the timer.
Countdown End Beeper
The countdown end beeper lets you know when the countdown reaches zero.
The beeper stops after about 10 seconds or when you press any button.
To configure the countdown timer
1. While the countdown start time is on the
display in the Countdown Timer Mode, hold
down A until the current countdown start time
starts to flash, which indicates the setting
screen.
• If the countdown start time is not displayed,
use the procedure under "To use the
countdown timer" to display it.
2. Press C to move the flashing in the sequence
shown below to select other settings.
3. When the setting you want to change is flashing, use D and B to change
it as described below.
Setting
Screen
Use D (+) and B (–) to change the setting.
Hours, Minutes
• To specify a countdown start time of 24 hours, set
4. Press A to exit the setting screen.
To use the countdown timer
Press D while in the Countdown Timer Mode to
Seconds
start the countdown timer.
• The countdown timer operation continues even
if you exit the Countdown Timer Mode.
• Press D while a countdown operation is in
progress to pause it. Press D again to resume
the countdown.
• To stop a countdown operation completely, first
Current
Timer start
timer time
pause it (by pressing D), and then press B.
time
This returns the countdown time to its starting
value.
Illumination
This watch has an EL (electro-luminescent) panel
Auto light switch
that causes the entire display to glow for easy
on indicator
reading in the dark. The watch's auto light switch
turns on illumination automatically 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 "Illumination Precautions" for other
important information about using illumination.
To illuminate the display manually
In any mode, press L to turn on illumination.
• The above operation turns on illumination
regardless of the current auto light switch
setting.
• You can use the procedure below to select either 1.5 seconds or 3 seconds
as the illumination duration. When you press L, the illumination will remain
on for about 1.5 seconds or 3 seconds, depending on the current
illumination duration setting.
Operation Guide 3153
Hours
Minutes
Button Operation
.
To specify the illumination duration
1. In the Timekeeping Mode, hold down A until
the display contents start to flash. This is the
setting screen.
2. Press the C button three times to move the
flashing to the seconds.
3. While the seconds are flashing, press B to
toggle the setting between 1.5 seconds (
and 3 seconds (
4. Press A to exit the setting screen.
About the Auto Light Switch
Turning on the auto light switch causes illumination to turn on, whenever you
position your wrist as described below in any mode.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you more than 40 degrees causes illumination 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 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 L for about three seconds to toggle the
auto light switch on (A.EL displayed) and off (A.EL not displayed).
• The auto light switch on indicator (A.EL) 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.
Charging is reduced significantly if the
face is covered only partially.
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 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 charge fully, 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.
• 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 5 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.
)
).
More than
40°
Solar cell
5
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