Casio AQF100WD-9BV Alarm, Stopwatch, Countdown Timer, World Time, Illumination, Recalling Temperature Data, Alarm Operation

Operation Guide 4335 4348

Recalling Temperature Data

The measurements the watch takes at the top and the bottom of each hour are stored in memory automatically. Memory can hold up to 50 measurement records. You can use the Temperature Data Recall Mode to recall memory data when you need it.

•Temperature data records are assigned numbers automatically starting from 01.

•When there are already 50 records in memory, storage of a new temperature reading causes the oldest record (record number 50) to be deleted automatically to make room for the new data. The new data is assigned record number 1, and all of the numbers of all the other records (01 to 49) are incremented by 1 (becoming 02 through 50).

To recall temperature records

Alarm

Alarm time		When the alarm is turned on, the watch beeps when the
(Hour : Minutes)		alarm time is reached. You can also turn on an Hourly
AM indicator		Time Signal, which will cause 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.
	Hourly time signal
Alarm on indicator	on indicator

Temperature

Record

Number

Data storage time

1.In the Timekeeping Mode, press Ctwice to enter the

Temperature Data Recall Mode.

• This displays the newest record currently in memory.

2.Use D(+) and B(–) to scroll through the records.

•Pressing Dwhile the oldest record is displayed will scroll to the newest record.

•If a temperature measurement operation is performed while a record is displayed, the displayed record's number will be incremented by 1.

•If an error occurs during temperature measurement, ‘‘--.-’’ will be shown for the temperature value in the corresponding record.

To set the alarm time		1. In the Alarm Mode, hold down Auntil the hour setting
		of the alarm time starts to flash, which indicates the
		setting screen.
		• This operation turns on the alarm automatically.
l lll		2. Press C to move the flashing between the hour and
l	l	minute settings.
l	l
l
ll l		3. While a setting is flashing, use D (+) and B (–) to
		change it.

• When setting the alarm time using the 12-hour format, take care to set the time correctly as a.m. (A indicator) or p.m. (P indicator).

4. Press Ato exit the setting screen.

Alarm Operation

Stopwatch

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

Minutes

1/100 Second

Seconds

Hours

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

•The display range of the stopwatch is 99 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 stop the alarm tone after it starts to sound, press any button.

To test the alarm

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

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

In the Alarm Mode, press D to cycle through the settings shown below.

Module 4335

Alarm Off	Alarm On	Alarm Off	Alarm On
Signal Off	Signal Off	Signal On	Signal On

To measure times with the stopwatchElapsed Time

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

Countdown Timer

	You can set the countdown timer within a range of one
	minute to 100 hours. An alarm sounds when the
	countdown reaches zero.
	• You can also select auto-repeat, which automatically
	restarts the countdown from the original value you set
	whenever zero is reached.
	• All of the operations in this section are performed in the
	Countdown Timer Mode, which you enter by pressing
Hours Minutes Second	C.

To use the countdown timer

Press Dwhile in the Countdown Timer Mode to start the countdown timer.

•When the end of the countdown is reached and auto-repeat is turned off, the alarm sounds for 10 seconds or until you stop it by pressing any button. The countdown time is automatically reset to its starting value after the alarm stops.

•When auto-repeat is turned on, the countdown will restart automatically without pausing when it reaches zero. The alarm sounds to signal when the countdown reaches zero.

•The countdown timer measurement operation continues even if you exit the Countdown Timer Mode.

•To stop a countdown operation completely, first pause it (by pressing D), and then press A. This returns the countdown time to its starting value.

To configure countdown start time and auto-repeat settings

1. While the countdown start time is on the display in the

Auto-repeat on indicator	Countdown Timer Mode, hold down Auntil the hour
	setting of the countdown start time starts to flash, which

Module 4348
Alarm Off	Alarm On	Alarm Off	Alarm On
Signal Off	Signal Off	Signal On	Signal On

•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.

World Time

	The World Time Mode digitally displays the current time in
Day of the week and day	50 cities (30 time zones) around the world.
in the selected city	• The times kept in the World Time Mode are
	synchronized with the time being kept in the
	Timekeeping Mode. If you feel that there is an error in
	any World Time Mode time, check the UTC differential of
	your Home Site Data (Home City) and the current
	setting of the Timekeeping Mode time.

•Select a city code in the World Time Mode to display the current time in any particular time zone around the globe. See the “UTC Differential/City Code List” for information about the UTC differential settings that are

City code	supported.
	• All of the operations in this section are performed in the
Current time in
	World Time Mode, which you enter by pressing C.
selected city

To view the time in another city

While in the World Time Mode, press D to scroll eastward through the city codes (time zones) or B to scroll westward.

To toggle a city code time between Standard Time and Daylight Saving Time

1.In the World Time Mode, use D and Bto display the city code (time zone) whose Standard Time/Daylight Saving Time setting you want to change.

2.Hold down A to toggle between Daylight Saving Time

(DST indicator displayed) and Standard Time (DST indicator not displayed).

• The DST indicator is shown on the World Time screen

DST indicator	while Daylight Saving Time is turned on.
	• Note that changing the Daylight Saving Time for any city
	code causes the setting to be applied to all city codes.

Illumination

			indicates the setting screen.
			• If the countdown start time is not displayed, use the
ll l			procedure under “To use the countdown timer” to
			display it.
l	l
	l
l	l		2. Press Cto move the flashing in the sequence shown
l
l	l	l
ll			below, and select the setting you want to change.
		On/Off status
				Start Time	Start Time	Auto-Repeat
				(Hours)	(Minutes)	On/Off

3.Perform the following operations, depending on which setting is currently selected on the display.

•While the start time setting is flashing, use D(+) and B(–) to change it.

•Set 0:00 to specify 100 hours.

•While the auto-repeat on/off setting (0N or 0F) is flashing on the display, press Dto toggle auto-repeat on (0N) and off (0F).

4.Press A to exit the setting screen.

• The auto-repeat on indicator () is displayed on the Countdown Timer Mode screen while this function is turned on.

Auto light switch on indicator

This watch has an EL (electro-luminescent) panel that causes the entire display to glow for easy reading in the dark. The watch’s auto light switch turns on illumination automatically when you angle the watch towards your face.

•The auto light switch must be turned on (indicated by the auto light switch on indicator) for it to operate.

•See “Illumination Precautions” for other important information about using illumination.

To turn on illumination manually

In any mode, press Lto illuminate the display for about 1.5 seconds.

•The above operation turns on illumination regardless of the current auto light switch setting.

• Frequent use of auto-repeat and the alarm can run down battery power.

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