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USER’S GUIDE 2549
3
To turn an alarm on and off
1. In the Alarm Mode, use D and B to select an alarm.
2. Press A to toggle it on and off.
• Turning on a alarm (
AL1to AL4, or SNZ) displays
the alarm on indicator (
) on its Alarm Mode screen.
• In all modes, the alarm on indicator is shown for any
alarm that is currently turned on.
• The alarm on indicator and applicable alarm number
indicator flash while the alarm is sounding.
• The snooze alarm indicator (
) flashes during the
5-minute intervals between alarms.
• In other modes besides the Alarm Mode, alarm number
indicators are displayed for each alarm that is currently
turned on.
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use D and B to select the Hourly
Time Signal (
SIG).
2. Press A to toggle it on (
ON) and off (OFF).
• The Hourly Time Signal on indicator (
) is shown on
the display in all modes while this function is turned on.
Alarm number indicator
(Alarm 3)
Alarm on indicator
Hourly time signal on
indicator
Countdown Timer
You can set the countdown timer within a range of
one minute to 24 hours. An alarm sounds when the
countdown reaches zero.
• You can also select auto-repeat, which automatically
restarts the countdown from the original value you set
whenever zero is reached.
• The initial default countdown start time when you
purchase the watch or after you have its battery
replaced is 15 minutes.
• Countdown timer functions are available in the
Countdown Timer Mode, which you can enter using C.
Hours
Minutes
Seconds
Timekeeping Mode time
To use the countdown timer
Press D while in the Countdown Timer Mode to start the countdown timer.
• When the end of the countdown is reached and auto-repeat is turned off, the alarm
sounds for 10 seconds or until you stop it by pressing any button. The countdown
time is automatically reset to its starting value after the alarm stops.
• When the end of the countdown is reached and auto-repeat is turned on, the alarm
sounds, but the countdown starts again automatically whenever the countdown
reaches zero.
• The countdown timer measurement 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 completely stop a countdown operation, first pause it (by pressing D), and then
press B. This returns the countdown time to its starting value.
To set up the countdown timer
1. While the countdown start time is on the display in the
Countdown Timer Mode, hold down A until the hour
setting of the countdown start time starts to flash, which
indicates the setting screen.
• If the countdown start time is not displayed, use the
procedure “To use the countdown timer” to display it.
2. Press C to move the flashing in the sequence shown
below to select other settings.
Auto-repeat
Minutes
Hours
3. While a setting is flashing, use D and B to change it as described below.
• To specify a countdown start time of 24 hours, set
0:00
.
4. Press A to exit the setting screen.
•
The auto-repeat on indicator ( ) appears on the display while this function is turned on.
• Frequent use of auto-repeat and the alarm can run down battery power.
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
• 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.
• 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.
Screen
0:15
RPTOFF
To do this:
Change the hours or minutes
Toggle auto-repeat on (
ON
) and off (
OFF
)
Do this:
Use D (+) and B (–).
Press D.
To measure times with the stopwatch
Elapsed Time
Start
Stop Re-start Stop Clear
Start
Split
( displayed)
Split release Stop Clear
Start
Split Stop Split release Clear
Split Time
Two Finishes
First runner
finishes.
Display time of
first runner.
Second runner
finishes.
Display time of
second runner.
• The time on the screen may not appear to stop immediately when you press a
button to stop timing or to perform a split operation. Despite this, the time recorded
by your button operation is accurate.
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, 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.
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 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 L for about one second 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.
• In order to protect against running down the battery, the auto light switch
automatically turns off approximately six hours after you turn it on. Repeat the above
procedure to turn the auto light switch back on if you want.
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Inputting Text
The following describes how to input text in the e-DATA MEMORY and Alarm Modes.
To input characters
1. When the cursor is on the display, use D and B to
cycle through the available letters, numbers and
symbols, in the sequence shown below.
Hours
Seconds
1/100 second
Minutes
Auto light switch on
indicator
Cursor
(space)
to
(symbol)
to
(number)
Press . Press .
to
(lower-case)
to
(upper-case)
2. When the character you want is at the cursor position, press C to move the cursor
to the right.
3. Repeat steps 1 and 2 to input the rest of the characters you want.
• See the “Character List” for information about the characters you can input.
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