Operation Guide 2616
3
To select the operation of Alarm
1
1
1
1
1
1. In the Alarm Mode, use
D
to select Alarm
1
.
2. Press
A
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
Alarm off
•
The applicable alarm on indicator (
or
) is displayed in all modes when an
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
A
to toggle it on and off.
•
Turning on the Hourly Time Signal displays the hourly
time signal on indicator (
) on its screen.
•
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,
and two finishes.
•
The display range of the stopwatch is 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.
•
Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
•
All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing
C
.
1/100 second
Minutes
Seconds
Timekeeping
Mode time
To measure times with the stopwatch
D
Start
Stop
Elapsed Time
➤
Re-start
Clear
D
➤
Stop
D
➤
D
➤
A
Split Time
D
Start
Split
➤
Split release
Clear
A
➤
Stop
A
➤
D
➤
A
Two Finishes
D
Start
Split
➤
Stop
Clear
A
➤
Split release
D
➤
A
➤
A
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
(
SPL
displayed)
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 (except when a setting screen is on the
display), press
B
to illuminate the display for about one
second.
•
The above operation turns on the backlight regardless of
the current auto light switch setting.
Auto light switch
on indicator
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
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 (
displayed) and off (
not displayed).
•
The auto light switch on indicator (
) is on the display in all modes while the 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.
•
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.
•
Normally, you should try to keep the watch
outside of your sleeve as much as possible.
Charging is significantly reduced if the face is
only partially covered.
Solar cell
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, which 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.
Battery power indicator
Level
1
2
3
4
Battery Power
Indicator
(Charge Soon Alert)
Function Status
All functions enabled.
All functions enabled.
Beeper tone, backlight,
display, and buttons are
disabled.
All functions, including
timekeeping, are disabled.
•
The flashing
CHARGE
indicator at Level 3 tells you that battery power is very low,
and that exposure to bright light for charging is required as soon as possible.
•
At Level 4, all functions are disabled and settings return to their initial factory
defaults. Functions are enabled once again after the rechargeable battery is
charged, but you need to set the time and date, after the battery reaches Level 3
(indicated by flashing
CHARGE
indicator) from Level 4. You will not be able to set
any of the other settings until the battery reaches Level 2 (no
CHARGE
indicator)
after dropping to Level 4.
•
Leaving the watch in direct sunlight or some other very strong light source can
cause the battery power indicator to temporarily show a reading that is higher than
the actual battery level. The correct battery power indicator should appear after a
few minutes.
•
If you use the backlight or any of the alarm functions a number of times during a
short period,
RECOVER
appears on the display and the following operations
become disabled until battery power recovers.
Backlight
Beeper tone
After some time, battery power will recover and
RECOVER
will disappear, indicating
that the above functions are enabled again.
Charging Precautions
Certain charging conditions can cause the watch to become very hot. Avoid leaving
the watch in the areas described below whenever charging its rechargeable battery.
Also note that allowing the watch to become very hot can cause its liquid crystal
display to black out. The appearance of the LCD should become normal again when
the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable battery can cause it
to become quite hot. Take care when handling the watch to avoid burn injury.
The watch can become particularly hot when exposed to the following
conditions for long periods.
•
On the dashboard of a car parked in direct sunlight
•
Too close to an incandescent lamp
•
Under direct sunlight
