Casio 3100 User Manual

MA0801-EA

Operation Guide 3100

About This Manual

(Light)

• Depending on the model of your watch, display text appears either as dark figures on a light background or light figures on a dark background. All sample displays in this manual are shown using dark figures on a light background.

• Button operations are indicated using the letters shown in the illustration.

• Each section of this manual provides you with the information you need to perform operations in each

(Light)

mode. Further details and technical information can be found in the “Reference” section.

General Guide

• Press B to change from mode to mode.

• In any mode (except when a setting screen is on the display), press L to illuminate

the display.

Timekeeping Mode Stopwatch Mode Preset Timer Mode Alarm ModeWorld Time ModeCountdown Timer Mode

Press .

Timekeeping

Hour : Minutes : Seconds

PM indicator

Use the Timekeeping Mode to set and view the current time and date.

Read This Before You Set the Time and Date !

The times displayed in the Timekeeping Mode and World Time Mode are linked. Because of this, make sure you select a Home City code before you set the time and date.

To toggle between 12-hour and 24-hour timekeeping

In the Timekeeping Mode, press D to toggle between 12-hour timekeeping and 24-hour timekeeping.

• With the 12-hour format, the P (PM) indicator appears on the display for times in the range of noon to 11:59 p.m. and the A (AM) indicator appears for times in the range of midnight to 11:59 a.m.

• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without any indicator.

• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is applied in all other modes.

• The A and P indicators are not displayed when the current time is displayed in other modes.

Month – Day Day of week

To set the time and date

Seconds City Code

3. When the setting you want to change is flashing, use D and C to change it as

described below.

Screen

To do this:

Reset the seconds to

OFF

Toggle between Daylight Saving Time (ON) and Standard Time (

Change the city code

Change the hour or minutes

Change the year

6-30

Change the month or day

• For details about city codes, see the “City Code Table”.

• See “Daylight Saving Time (DST)” for details about DST setting.

4. Press A to exit the setting screen.

Daylight Saving Time (DST)

Daylight Saving Time (summer time) advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time.

To toggle the Timekeeping Mode time between DST and Standard Time

DST indicator

1. In the Timekeeping Mode, hold down A until the

seconds start to flash, which indicates the setting screen.

2. Press B to move the flashing in the sequence shown

below to select other settings.

DST

Month

OFF

)

1. In the Timekeeping Mode, hold down A until the

seconds start to flash, which indicates the setting screen.

2. Press B to display the DST setting screen.

3. Press D to toggle between Daylight Saving Time

(

displayed) and Standard Time (

4. Press A to exit the setting screen.

• The DST indicator appears on the display to indicate that Daylight Saving Time is turned on.

Year MinutesDay

Do this:

Press D.

Use D (east) and C (west).

Use D (+) and C (–).

OFF

Hour

displayed).

Stopwatch

Current Timekeeping Mode time

• All of the operations in this section are performed in the Stopwatch Mode, which you

enter by pressing B.

Total time minutes, seconds, 1/100 second * Once started, this time

measurement cannot be paused. It shows total time since the stopwatch measurement operation started.

Basic Event Timing Operation

Start

* Total time measurement in upper display continues.

Using the Stopwatch Mode to Time a Sporting Event

You can time a sporting event with the Stopwatch Mode either with or without presetting the duration of the event. If you do, the watch will beep when the total time in the upper display reaches the preset event duration. If the event is interrupted for timeouts or some other reason, press D to pause and restart event time measurement in the lower display. Since total time measurement continues in the upper display, you can calculate the time that play was interrupted (lost time) by subtracting the time in the lower display from the time in the upper display.

The Stopwatch Mode lets you time a game or event. The upper display shows non-stop total elapsed time, while the lower display shows event elapsed time, which can be paused as required for time outs, half time, etc.

• The measurement limit of the upper display (total time) is 99 minutes 59 seconds.

• The measurement limit of the lower display (event time) is 59 minutes 59 seconds.

• A stopwatch measurement operation continues to run until you stop it. If either time reaches its measurement limit, it will restart from zero.

• A stopwatch measurement operation continues even if you exit the Stopwatch Mode.

• Starting event timing will cause the display to change to the Elapsed Time Screen from the initial screen shown on this page.

Elapsed Time Screen

Event time minutes, seconds * The time measurement in this

display can be paused and restarted by pressing .

Stop* Re-start Stop* Clear

Hold down

Operation Guide 3100

To preset the duration of the event

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.

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.

Preset Timer

Preset timer time

Current time

To perform a preset timer operation

10 minutes 12 minutes 15 minutes 20 minutes

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.

1. In the Preset Timer Mode, use C to scroll through the

preset times until the one you want to use is displayed.

25 minutes

Countdown Timer

Start time (Minutes' Seconds")

Countdown timer number

• 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.

Current time

To configure countdown timer settings

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

settings.

4. While a setting is flashing, use D and C to change it as described below.

Screen

To do this:

Change the countdown timer number

03'00''

Change the minutes

03'00''

Change the seconds (5-second units) Toggle auto-repeat off and on ( )

• Any timer whose start time is operation.

• There is no auto-repeat for individual countdown timers. In the Countdown Timer Mode, auto-repeat repeats the entire set of timers.

Auto-repeat on indicator

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 ( (

)

Example 2: Game Timing

45-minute period ( 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.

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.

00'00'

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.

), 1-minute rest ( ), 5-minute run

), 15-minute halftime ( ),

)

MinutesCountdown Timer number Seconds Auto-repeat

Do this:

Use D (+) and C (–). Use D (+) and C (–). Use D (+) and C (–).

' will not be used during countdown timer

Press D.

30 minutes45 minutes 40 minutes 35 minutes

Auto-repeat on indicator

Number of repeats

• 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 “

• 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.

• 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.

” when the count reaches 100.

Number of repeats

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 “

• 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.

” when the count reaches 100.

World Time

Current time in the zone of the selected city code

City code

Timekeeping Mode 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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