Casio 2901, 2900 Owner's Manual

Alarm on indicator

MA0407-EA

Operation Guide 2900/2901

About This Manual

(Light)

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

General Guide

•Press Cto change from mode to mode.

•In any mode, press Lto illuminate the display.

Timekeeping Mode

Alarm Mode

Stopwatch Mode

Dual Time Mode

Press .

Timekeeping

PM indicator

Seconds

Hour : Minutes

Day of week

Month – Day

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

To set the time and date

1.In the Timekeeping Mode, hold down Auntil the seconds start to flash, which indicates the setting screen.

2.Press Cto move the flashing in the sequence shown below to select other settings.

Seconds

Hour

Minutes

Day of week

Day

Month

Year

3.When the setting you want to change is flashing, press Bto change it as described below.

To change this setting	Perform this button operation
Seconds	Press Bto reset to 00.
Hour, Minutes, Year, Month,	Press Bto increase the setting.
Day, Day of week	Holding down Bchanges the setting at high speed.

•Pressing Bwhile the seconds are in the range of 30 to 59 resets them to 00 and adds 1 to the minutes. In the range of 00 to 29, the minutes are unchanged.

4.Press Ato exit the setting screen.

•The year can be set in the range of 2000 to 2099.

•The watch’s built-in full automatic calendar 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.

To toggle between 12-hour and 24-hour timekeeping

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

•With the 12-hour format, the (PM) indicator appears to the left of the hour digits for times in the range of noon to 11:59 p.m. and no indicator appears to the left of the hour digits 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, with indicator.

•The and indicators are not displayed with the Timekeeping Mode time on the Alarm Mode and Dual Time Mode screens.

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

Alarm

Alarm time (Hour : Minutes)

Mode indicator

Timekeeping Mode time (Hour : Minutes)

To set an alarm time

When the daily alarm is turned on, the alarm tone sounds when the alarm time is reached.

You can also turn on an Hourly Time Signal that causes the watch to beep twice every hour on the hour.

•All of the operations in this section are performed in the Alarm Mode, which you enter by pressing C.

Alarm Operation

The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in.

1.In the Alarm Mode, hold down Auntil the hour setting starts to flash, which indicates the setting screen.

•This operation automatically turns on the alarm.

2.Press Cto move the flashing between the hour and minutes.

3.While a setting is flashing, use Bto increase it. Holding down B changes the setting at high speed.

•With the 12-hour format, set the time correctly as a.m. (no indicator) or p.m. (indicator).

4.Press Ato exit the setting screen.

To stop the alarm tone after it starts to sound

Press any button.

To turn the Daily Alarm and Hourly Time Signal on and off

In the Alarm Mode, press Bto cycle through the on and off settings as shown below.

Alarm On Indicator/Hourly Time Signal On Indicator

Both on

Both off

Daily alarm

Hourly Time

only

Signal only

• The alarm on (x) indicator flashes while the alarm is

sounding.

• The alarm on (x) indicator and Hourly Time Signal on

Hourly time signal

(y) indicator are displayed in all modes.

on indicator

To test the alarm

In the Alarm Mode, hold down Bto sound the alarm.

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Operation Guide 2900/2901

Stopwatch

Seconds

Hours								Minutes

Mode indicator

1/100 second

The stopwatch lets you measure elapsed time, split times, and two finishes.

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

To measure times with the stopwatch

Elapsed time

Start	Stop	Re-start	Stop	Clear
Split time
Start	Split	Split release	Stop	Clear
	(SPL displayed)
Two Finishes
Start	Split	Stop	Split release	Clear
	First runner	Second runner	Display time of
	finishes.	finishes.	second runner.
	Display time of
	first runner.

Dual Time

The Dual Time Mode lets you keep track of time in a different time zone.

•In the Dual Time Mode, the seconds count is synchronized with the seconds count of the Timekeeping Mode.

Hour : Minutes Seconds								To set the Dual Time
								1. Press Cto enter the Dual Time Mode.
								2. Hold down Auntil the hour setting starts to flash,
								which indicates the setting screen.
								3. Press Cto move the flashing between the hour and
								minutes settings.
								4. Press Bto increase the setting. Holding down B
								changes the setting at high speed.
								5. Press Ato exit the setting screen.
Mode indicator
	Timekeeping Mode time
	(Hour : Minutes)

Illumination

The watch has an EL (electro-Iuminescent) panel that Three-second indicator causes the entire display to glow for easy reading in the

dark.

• See “Illumination Precautions” for other important information.

To illuminate the display

In any mode, press Lto illuminate the display.

• You can specify 1.5 seconds or three seconds as the illumination duration. See “To specify the illumination duration” for more information.

To specify the illumination duration

In the Timekeeping Mode, hold down B for about two seconds to toggle the illumination duration between three seconds (3" displayed) and 1.5 seconds (3" not displayed).

•Pressing B also toggles between 12-hour and 24-hour timekeeping.

•When the three-second setting is selected, the three-second (3" ) indicator remains on the display in all modes.

•To protect against running down the watch’s battery, the watch automatically switches to the 1.5-second setting about seven hours after the three-second setting is selected. To continue to use the three-second setting, perform the above procedure again.

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 return features

If you leave a screen with flashing digits for one or two minutes without performing any operation, the watch automatically saves any settings you have made up to that point and exits the setting screen.

Illumination Precautions

•The electro-luminescent panel that provides illumination loses power after very long use.

•Illumination may be hard to see when viewed under direct sunlight.

•Illumination automatically turns off whenever an alarm sounds.

•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.

•Frequent use of illumination runs down the battery.

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