2
Operation Guide 3100
To preset the duration of the event
1.In the Stopwatch Mode, hold down A until the current
event duration setting starts flashing in the upper
display
• If the current event duration setting does not appear
when you hold down A , it means that an ongoing
elapsed time operation is in progress. Use the
procedure under “ T
and reset the stopwatch” to reset.
2. Use D (+) and C (– ) to change the current event
duration setting.
• Y
minutes, in one-minute units.
3. After setting the duration, press A to exit the setting
screen.
To start timing of an event
Press D to start event timing.
• Initially
To pause timing
1. Press D.
• This will stop event time measurement in the lower display
measurement in the upper display will continue.
2. TD again.
When the preset event duration is reached
• The watch will beep for 10 seconds when the total elapsed time in the upper display
reaches the preset event duration.
• Event timing continues even after the preset event duration is reached.
To stop an elapsed time operation and reset the stopwatch
1. Press D to stop event time measurement in the lower display
• T
2. Hold down C until the initial Stopwatch Mode screen appears.
Preset timer time
Current time
Preset Timer
The watch includes a number of different preset times
that you can select for the countdown start times.
An alarm sounds when the countdown reaches zero.
• The following are the preset start times, all in minutes:
10, 12, 15, 20, 25, 30, 35, 40, 45.
• Y
will restart the timer from the currently selected preset
time whenever it reaches zero.
• All of the operations in this section are performed in the
Preset TB.
To perform a preset timer operation
1. In the Preset TC to scroll through the
preset times until the one you want to use is displayed.
Number of repeats
Auto-repeat on indicator
10 minutes 12 minutes 15 minutes 20 minutes
25 minutes
30 minutes 40 minutes 35 minutes
• TA while a start
time selection screen is displayed. The number of
repeats will appear near the timer time.
• Frequent use of auto-repeat and the alarm can run
down battery power
2. Press D to start the countdown.
• Press D while a countdown operation is in progress to
pause it. Press D again to resume the countdown.
• When the end of the countdown is reached (regardless
of whether auto-repeat is on or off), the alarm sounds for
10 seconds or until you stop it by pressing any button.
• Auto-repeat off: When the end of the countdown is
reached, an elapsed time operation starts and the upper
display shows how much time has elapsed since the
end of the countdown. The elapsed time operation will
stop automatically when it reaches 60 minutes.
time the countdown timer start time selection screen will
appear
• Auto-repeat on: When the end of the countdown is reached, a new countdown starts
from the preset start time. The number of repeats is displayed next to the timer time.
The number of repeats display changes to “
xx
” when the count reaches 100.
• TD ), and then
press C . This will display the initial Preset T
Countdown Timer
With the countdown timer, you can set up to nine start
times, which are counted down in sequence one after the
other
Example 1: Interval T
3-minute run (
), 1-minute rest ( ), 5-minute run
(
)
Example 2: Game Timing
45-minute period (
), 15-minute halftime ( ),
45-minute period (
)
• The watch beeps when any countdown timer reaches
zero.
• An alarm sounds for about five seconds when the last
countdown timer reaches zero.
• Y
beginning when the end of the last countdown timer is reached.
• All of the operations in this section are performed in the Countdown T
which you enter by pressing B.
To configure countdown timer settings
1. In the Countdown TA until the
countdown timer number starts to flash.
This is the setting screen.
2. Use D and C to scroll through the countdown timer
numbers until the one you want to set is displayed.
Current time
Start time
(Minutes' Seconds")
Countdown timer number
Screen
03'00''
03'00''
T
Change the countdown timer number
Change the minutes
Change the seconds (5-second units)
T )
Do this:
Use D (+) and C ( – ).
Use D (+) and C ( – ).
Use D (+) and C ( – ).
Press D .
3. Press B to move the flashing in the sequence shown below to select other
settings.
Minutes Seconds Auto-repeat
4. While a setting is flashing, use D and C to change it as described below
• Any timer whose start time is
00'00'
' will not be used during countdown timer
operation.
• There is no auto-repeat for individual countdown timers. In the Countdown T
Mode, auto-repeat repeats the entire set of timers.
5. Set the times of all of the countdown timers that you
want.
6. Press A to exit the setting screen.
• When auto-repeat is turned on, the number of repeats
will appear next to the timer time.
• Frequent use of auto-repeat and the alarm can run
down battery power
Number of repeats
Auto-repeat on indicator
To perform a countdown timer operation
In the Countdown Timer Mode, press D to start the countdown timer
• TD. Press D again to restart.
• While auto-repeat is turned off, the watch beeps when each countdown timer
reaches zero.
timer reaches zero.
• While auto-repeat is turned on, the watch beeps when each countdown timer
reaches zero.
timer reaches zero. The timing restarts from the first timer when the final countdown
timer reaches zero. The number of repeats is displayed next to the timer time. The
number of repeats display changes to “
xx
” when the count reaches 100.
• An ongoing countdown timer operation continues to be performed even if you exit
the Countdown T
• TD to pause it, and then press C. This
returns the countdown time to its starting value.
Timekeepin
Mode time
Current time in the zone
of the selected city code
City code
World Time
World T
zones) around the world.
• When you enter the World T
were viewing when you last exited the mode appears
first.
• All of the operations in this section are performed in the
World TB .
To view the time for another city code
In the World TD to scroll eastward
through city codes or C to scroll westward.
• For full information about city codes, see the “City Code
T” .
• If the current time for a city is wrong, check your
Timekeeping Mode time and city code settings and
make necessary changes.
