Casio 5052 World Time, Stopwatch, Alarms, Illumination, Power Supply, Elapsed Time Screen, Split Time Screen, ll l l l l l l, Alarm Operation

Operation Guide 3311 5052

World Time

Stopwatch

City Code

Current time in the selected city code

The World Time Mode digitally displays the current time in 30 cities (29 time zones) around the world.

•Pressing Ain the World Time Mode causes the applicable city code to appear on the digital display for about two seconds.

•If the current time shown for a city is wrong, check your Home City time settings and make the necessary changes.

•The watch will perform a signal reception even if it is in the World Time Mode when a calibration time is reached. If this happens, the World Time Mode time settings will be adjusted in accordance with the Timekeeping Mode’s Home City time.

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

	1/100	The stopwatch lets you measure elapsed time, split times,
		and two finishes.
Seconds	second
		• The display range of the stopwatch is 99 minutes, 59.99
		seconds.
		• The 1/100-second value appears while the elapsed time
		operation is stopped or while a split time is frozen on the
		display.

More than	Elapsed Time Screen
one minute	Elapsed time
	(Minutes : Seconds)	1/100 second
Minutes Seconds

To view the time in another city

While in the World Time Mode, press Dto scroll through the city codes (time zones).

•For full information on city codes, see the “City Code Table”.

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

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

• Pressing Ain the World Time Mode causes the

applicable city code to appear on the digital display for

about two seconds.

2. Hold down Ato toggle Daylight Saving Time (DST

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

DST indicator • Note that you cannot use the World Time Mode to change the DST setting of the Home City code you currently have selected in the Timekeeping Mode. See “To change the Daylight Saving Time (summer time) setting” for information about turning the Home City code DST setting on and off.

•The DST indicator will appear on the display whenever you display a city code for which Daylight Saving Time is turned on.

•Note that you cannot switch between Standard Time and Daylight Saving Time while GMT is selected as the city code.

•Note that the DST/Standard Time setting affects only the currently displayed city code. Other city codes are not affected.

Alarms

		On/Off status		You can set three independent Daily Alarms. When an
Alarm	Mode			alarm is turned on, the alarm tone sounds when the alarm
				time is reached. You can also turn on an Hourly Time
number	indicator
				Signal that causes the watch to beep twice every hour on
				the hour.
				• The alarm and Hourly Time Signal operate in
				accordance with the current digital time.
				• The alarm number (AL1 though AL3) indicates an alarm
				screen. SIG appears in place of the alarm number when
			Alternate at	the Hourly Time Signal screen is shown.
				• All of the operations in this section are performed in the

Split Time Screen
		Split time
	Split indicator (Minutes : Seconds) 1/100 second
			l	ll
			l
			l	l
			l	l
			l	l
			l
			l	l
				l
			ll

•The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it.

•Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement.

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

•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

D	➤D	➤D	➤D	➤A
Start	Stop	Re-start	Stop	Clear
Split Time
D	➤A	➤A	➤D	➤A
Start	Split	Split release	Stop	Clear
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.

Illumination

		two-second	Alarm Mode, which you enter by pressing C.
		interval
Alarm	time
(Hour : Minutes)
To set an alarm time			1. In the Alarm Mode, press Dto select the alarm whose
			time you want to set.
				AL1	AL2	AL3	SIG

l	ll l l l l l l
			l
l				l
l			l	l
l		l l l l l l

Power Supply

An LED (light-emitting diode) and a light guide panel illuminate the digital display for easy reading in the dark.

•See “Illumination Precautions” for other important information.

To illuminate the display

In any mode, press Bto illuminate the display.

•You can specify 1.5 seconds or 2.5 seconds as the illumination duration. See “To set the current digital time and date manually” for more information.

2.Hold down Auntil the hour setting of the alarm time

starts to flash, which indicates the setting screen.

• This automatically turns on the alarm.

3.Press C to move the flashing between the hour and minute settings.

4.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. (no indicator) or p.m. (P indicator).

•If you have 24-hour timekeeping selected in the Timekeeping Mode, the alarm time is also displayed in 24-hour format.

5.Press A to exit the setting screen.

Alarm Operation

The alarm sounds in all modes at the preset time for about 10 seconds, or until you stop it by pressing any button.

To test the alarm

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

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

1.In the Alarm Mode, press D to select an alarm or the Hourly Time Signal.

2.When the alarm or the Hourly Time Signal you want to set is selected, press Ato turn it on and off.

This watch is equipped with a solar cell and a special rechargeable battery (secondary battery) that is charged by the electrical power produced by the solar cell. The illustration shown below shows how you should position the watch for charging.

Example: Orient the watch so its face

is pointing at a light source.	Solar cell
• The illustration shows how to position
a watch with a resin band.
• Note that charging efficiency drops
when any part of the solar cell is
blocked by clothing, etc.

•You should try to keep the watch outside of your sleeve as much as

possible. Charging is reduced significantly if the face is only partially covered.

Important!

•Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is blocked from exposure to light can cause rechargeable battery power to run down. Make sure that the watch is exposed to bright light whenever possible.

•This watch uses a special rechargeable battery to store power produced by the solar cell, so regular battery replacement is not required. However, after very long use, the rechargeable battery may lose its ability to achieve a full charge. If you experience problems getting the special rechargeable battery to charge fully, contact your dealer or CASIO distributor about having it replaced.

•Never try to remove or replace the watch’s special battery yourself. Use of the wrong type of battery can damage the watch.

•The current time and all other settings return to their initial factory defaults whenever battery power drops to Level 4 and when you have the battery replaced.

•Turn on the watch’s Power Saving function and keep it in an area normally exposed to bright light when storing it for long periods. This helps to keep the rechargeable battery from going dead.

3