Casio GST-210D-1A, Operation Manual, Page: 4 / 6

Operation Guide 5475
E-30
To pause at a split time
D A A D A
Start Split
( SPL appears in the
lower display.)
Split release Stop Reset
To measure two fi nishes
D A
D A
A
Start Split
First runner
fi nishes.
(
SPL appears in
the lower display.)
Display time of
fi rst runner
Stop
Second runner
fi nishes.
Split release
Display time of
second runner
Reset
E-31
Note
• The Stopwatch Mode can indicate elapsed time up to 23 hours, 59 minutes, 59.99
seconds.
• Elapsed time returns to zero automatically and timing continues from there when
the above elapsed time limit is reached.
• An ongoing elapsed time measurement operation will continue internally even if you
change to another mode. However, if you exit the Stopwatch Mode while a split
time is displayed, the split time will not be displayed when you return to the
Stopwatch Mode.
E-32
Using the Countdown Timer
The countdown timer can be confi gured to start at a preset time and sound an alarm
when the end of the countdown is reached.
To enter the Countdown Timer Mode
Use
C
to select the Countdown Timer Mode as shown on
page E-8.
• The mode dial hand will move to TMR and the upper
display will show the current countdown time.
To specify the countdown start time
1. Enter the Countdown Timer Mode.
• If a countdown is in progress (indicated by the
seconds counting down), press
D
to stop it and
then press
A
to reset to the current countdown
start time.
Countdown time
(Minutes, seconds) Countdown time
(Minutes, seconds)
E-33
• If a countdown is paused, press
A
to reset to the current countdown start
time.
2. Hold down
A
until the minute setting of the current countdown start time starts to
fl ash. This is the setting screen.
3. Use
D
(+) and
B
(–) to change the minute.
• You can set a countdown start time from 1 to 60 minutes, in one-minute
increments.
4. Press
A
to exit the setting screen.
To perform a countdown timer operation
D D
D D
A
Start Stop (Resume) (Stop) Reset
• Before starting a countdown timer operation, check to make sure that a countdown
operation is not already in progress (indicated by the seconds counting down). If it
is, press
D
to stop it and then
A
to reset to the countdown start time.
E-34
• An alarm sounds for 10 seconds when the end of the countdown is reached. This
alarm will sound in all modes. The countdown time is reset to its starting value
automatically after the alarm sounds.
To stop the alarm
Press any button.
E-35
Using the Alarm
You can set fi ve independent daily alarms. When an alarm
is turned on, an alarm will sound for about 10 seconds
each day when the time in the Timekeeping Mode reaches
the preset alarm time. This is true even if the watch is not
in the Timekeeping Mode. One of the daily alarms is a
snooze alarm. The snooze alarm will sound every fi ve
minutes up to seven times or until it is turned off.
You can also turn on an Hourly Time Signal, which will
cause the watch to beep twice every hour on the hour.
To enter the Alarm Mode
Use
C
to select the Alarm Mode as shown on page E-8.
• The mode dial hand will move to ALM , the lower display
will show the currently selected alarm number ( AL1 to
AL4 , or SNZ ), or the hourly time signal indicator ( SIG ).
Alarm number or SIG
Alarm time
(Hour : Minutes)
Alarm number or SIG
Alarm time
(Hour : Minutes)
E-36
• When you enter the Alarm Mode, the data you were viewing when you last exited
the mode appears fi rst.
To set an alarm time
1. In the Alarm Mode, use
D
to scroll through the alarm screens in the lower display
until the one you want to change is shown.
AL1 AL2 AL3
SIG SNZ AL4
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2. Hold down
A
until the hour digits of the alarm setting
start to fl ash in the upper display.
• This is the setting screen.
3. Press
C
to move the fl ashing between the hour and
minute settings.
4. While a setting is fl ashing, use
D
(+) and
B
(–) to
change it.
• 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).
5. Press
A
to exit the setting screen.
To test the alarm
In the Alarm Mode, hold down
D
to sound the alarm.
Alarm ON/OFF
indicator Alarm ON/OFF
indicator
E-38
To turn an alarm and the Hourly Time Signal on and off
1. In the Alarm Mode, use
D
to select an alarm or the Hourly Time Signal.
2. When the alarm or the Hourly Time Signal you want is selected, press
A
to turn it
on ( on ) and off ( - - ).
• The alarm on indicator (when any alarm is on),
snooze alarm indicator (when the snooze alarm is
on), and the Hourly Time Signal on indicator (when
the Hourly Time Signal is on) are shown on the
upper display in all modes.
To stop the alarm
Press any button.
Hourly time signal
on indicator
Alarm on indicator
Snooze alarm indicator
Hourly time signal
on indicator
Alarm on indicator
Snooze alarm indicator
E-39
Illumination
The display of the watch is illuminated for easy reading in
the dark. The auto light turns on illumination automatically
when you angle the watch towards your face.
• Auto light must be enabled (page E-42) for it to operate.
To illuminate the display manually
Press
B
in any mode (except when a fl ashing setting
screen is displayed) to illuminate the display.
• You can use the procedure below to select either 1.5
seconds or three seconds as the illumination duration.
When you press
B
, the display will remain illuminated
for about 1.5 seconds or three seconds, depending on
the current illumination duration setting.
• The above operation illuminates the display regardless
of whether auto light is enabled or disabled.