Casio 2441 Manuel de l'utilisateur - Page 3

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Alarm Operation

Starting from the point the Timekeeping Mode time reaches one hour before an

alarm time the display pattern changes each second. This pre-alarm feature

lets you know that an alarm time is about to be reached. When the actual

alarm time is reached, an alarm tone sounds for 20 seconds.

• Pressing any button stops the pre-alarm operation or the alarm tone

operation.

• The pre-alarm feature works in the Timekeeping Mode only.

• The pre-alarm operation is not performed at all if its start time (one hour

before the specified alarm time) is reached while the watch is not in the

Timekeeping Mode or while the Timekeeping Mode setting screen is on the

display. In this case, the pre-alarm operation will not start when you enter the

Timekeeping Mode.

To test the alarm

In the Alarm Mode, hold down D to sound the alarm.

To turn an alarm and the Hourly Time Signal on and off

1. In the Alarm Mode, use D and B 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 and off.

Alarm On

Red on blue

(Black on white

when off.)

Alarm on

indicator

On/Off status

• The alarm on indicator (

) and the Hourly Time Signal on indicator ( ) are

shown on the display in all modes while these functions are turned on.

• If any alarm is on, the alarm on indicator is shown on the display when you

change to another mode.

Stopwatch

The stopwatch lets you measure elapsed time, split

Minutes

times, and two finishes.

• The display range of the stopwatch is 23 hours, 59

Hours

Seconds

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

1/100 second

To measure times with the stopwatch

Elapsed Time

Start

Stop

Re-start

Split Time

Split

Split release

Start

(SPL displayed)

Two Finishes

Split

Stop

Start

First runner

Second runner

finishes.

Display time of

first runner.

USER'S GUIDE 2441

Hourly Time Signal On

Hourly time

signal on

indicator

Stop

Clear

Stop

Clear

Split release

Clear

Display time of

second runner.

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.

Auto Display

Auto Display continually changes the contents of the

digital display.

To turn off Auto Display

Press any button (except for L) to turn off Auto

Display. This returns to the Timekeeping Mode.

To turn on Auto Display

Hold down C for about two seconds until the watch

beeps.

• Note that Auto Display cannot be performed while a

setting screen is on the display.

Color Pattern Precaution

Note the following points about the different color patterns used for the display

of this watch.

• When using the red on blue color pattern, red figures may be difficult to read

from some viewing angles.

Auto Return Features

• After you perform any button operation (except for the backlight button) in any

mode, pressing C returns directly to the Timekeeping Mode.

• If you leave the watch in the e-DATA MEMORY Mode for two or three minutes

without performing any operation, it automatically changes to the

Timekeeping Mode.

• If you leave the watch in the Alarm Mode for one to two hours without

performing any operation, it automatically changes to the Timekeeping Mode.

• If you leave a screen with flashing digits or a cursor on the display for two or

three minutes without performing any operation, the watch automatically

saves any settings you have made up to that point and exits the setting

screen.

Initial Screens

When you enter the Timekeeping, World Time, e-DATA MEMORY, or Alarm

Mode, the data you were viewing when you last exited the mode appears first.

Data and Setting Scrolling

The B and D buttons are used in various modes and setting screens to scroll

through data on the display. In most cases, holding down these buttons during

a scroll operation scrolls through the data at high speed.

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 no 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 year can be set in the range of 2000 to 2039.

• The watch's built-in full automatic calendar automatically makes allowances

for different month lengths and leap years. Once you set the date, there

should be no reason to change it except after you have the watch's battery

replaced.

World Time

• The current time in all World Time Mode cities is calculated in accordance

with the Greenwich Mean Time (GMT) differential for each city, based on the

current Home City time setting in the Timekeeping Mode.

• The GMT differential is the time difference of the time zone where the city is

located from Greenwich Mean Time.

• GMT differential is calculated by this watch based on Universal Time

Coordinated (UTC) data.

• Daylight Saving Time (DST) advances the time setting by one hour from

Standard Time. Remember that not all countries or even local areas use

Daylight Saving Time.

Backlight Precautions

The backlight uses an EL (electro-luminescent) panel that causes the entire

display to glow for easy reading in the dark. In any mode, press L to

illuminate the display for about two seconds.

• The electro-luminescent panel that provides illumination loses power after

very long use.

• The illumination provided by the backlight may be hard to see when viewed

under direct sunlight.

• The watch may emit an audible sound whenever the display is illuminated.

This is due to vibration of the EL panel used for illumination, and does not

indicate malfunction.

• The backlight automatically turns off whenever an alarm sounds.

• Frequent use of the backlight shortens the battery life.