Casio 3100 User Manual download pdf (Page 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. This is the setting screen.

• 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 “To stop an elapsed time operation

and reset the stopwatch” to reset.

2. Use D (+) and C (–) to change the current event

duration setting.

• You can set a duration in the range of 1 to 60

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, the same elapsed time will appear in both the upper and lower displays.

To pause timing

1. Press D.

• This will stop event time measurement in the lower display, but total time

measurement in the upper display will continue.

2. To restart event time measurement in the lower display, press D 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.

• Total time measurement in the upper display continues.

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.

• You also can turn on auto-repeat, which automatically

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 Timer Mode, which you enter by pressing B.

To perform a preset timer operation

1. In the Preset Timer Mode, use C 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 minutes45 minutes 40 minutes 35 minutes

• To turn on auto-repeat, hold down A 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. At that

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 “

” when the count reaches 100.

• To stop a countdown operation completely, first pause it (by pressing D), and then

press C. This will display the initial Preset Timer Mode screen.

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 Training

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.

• You can turn on an auto-repeat feature that restarts the timer sequence from the

beginning when the end of the last countdown timer is reached.

• All of the operations in this section are performed in the Countdown Timer Mode,

which you enter by pressing B.

To configure countdown timer settings

1. In the Countdown Timer Mode, hold down A 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''

To do this:

Change the countdown timer number

Change the minutes

Change the seconds (5-second units)

Toggle auto-repeat off and on ( )

Do this:

Use D (+) and C (–).

Press D.

3. Press B to move the flashing in the sequence shown below to select other

settings.

MinutesCountdown Timer number 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 Timer

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.

• To pause a countdown timer operation, press D. Press D again to restart.

• While auto-repeat is turned off, the watch beeps when each countdown timer

reaches zero. An alarm will sound for about five seconds when the final countdown

timer reaches zero.

• While auto-repeat is turned on, the watch beeps when each countdown timer

reaches zero. An alarm will sound for about five seconds when the final countdown

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 “

” when the count reaches 100.

• An ongoing countdown timer operation continues to be performed even if you exit

the Countdown Timer Mode.

• To stop the countdown timer, first press D 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 Time shows the current time in 48 cities (29 time

zones) around the world.

• When you enter the World Time Mode, the data you

were viewing when you last exited the mode appears

first.

• All of the operations in this section are performed in the

World Time Mode, which you enter by pressing B.

To view the time for another city code

In the World Time Mode, press D to scroll eastward

through city codes or C to scroll westward.

• For full information about city codes, see the “City Code

Table”.

• If the current time for a city is wrong, check your

Timekeeping Mode time and city code settings and

make necessary changes.

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Casio 3100 User Manual Page 2

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