Casio 3215, 3222 Timekeeping, lll, l l l, Charging Precautions, Read This Before You Set the Time and Date, Battery Power Indicator and Recover Indicator

Operation Guide 3215 3222

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. Be sure that the watch is exposed to bright light whenever possible.

•This watch uses a 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 rechargeable battery to charge fully, contact your dealer or CASIO distributor about having it replaced.

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

•All data stored in memory is deleted, and the current time and all other settings return to their initial factory defaults whenever battery power drops to Level 5 (pages E-61and E-62) and when you have the battery replaced.

•Turn on the watch’s Power Saving function (page E-85) 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.

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•The flashing LOW indicator at Level 3 tells you that battery power is very low, and that exposure to bright light for charging is required as soon as possible.

•At Level 5, all functions are disabled and settings return to their initial factory defaults. Once the battery reaches Level 2 after falling to Level 5, reconfigure the current time, date, and other settings.

•The watch’s Home City code setting will change automatically to TYO (Tokyo) whenever the battery drops to Level 5. With this Home City code setting, the watch is configured to receive the time calibration signals of Japan. If you are using the watch in North America or Europe, or China you will need to change the Home City code setting to match your location whenever the battery drops to Level 5.

•Display indicators reappear as soon as the battery is charged from Level 5 to Level 2.

•Leaving the watch exposed to direct sunlight or some other very strong light source can cause the battery power indicator to show a reading temporarily that is higher than the actual battery level. The correct battery level should be indicated after a few minutes.

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Charging Precautions

Certain charging conditions can cause the watch to become very hot. Avoid leaving the watch in the areas described below whenever charging its rechargeable battery. Also note that allowing the watch to become very hot can cause its liquid crystal display to black out. The appearance of the LCD should become normal again when the watch returns to a lower temperature.

Warning!

Leaving the watch in bright light to charge its rechargeable battery can cause it to become quite hot. Take care when handling the watch to avoid burn injury. The watch can become particularly hot when exposed to the following conditions for long periods.

•On the dashboard of a car parked in direct sunlight

•Too close to an incandescent lamp

•Under direct sunlight

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Recovery Times

Battery Power Indicator and Recover Indicator

The battery power indicator on the display shows you the current status of the rechargeable battery’s power.

l	ll	Level	Battery Power Indicator			Function Status
	l
l	l
l		1				All functions enabled.
lll
l
		2				All functions enabled.
Battery power		3	l	l l l l	ll	Auto and manual receive,
indicator			l		l	illumination, and beeper
			l
			l		l
					l	disabled.
			l l ll l
			(Charge Soon Alert)
		4	ll l l l l			Except for timekeeping and
						the CHG (charge) indicator,
			l		l
			l		l
			l		l	all functions and display
				l l l l l	l
						indicators disabled.
		5				All functions disabled.

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		ll					• Performing illumination, or beeper operations during a
l							short period may cause the recover indicator to appear
			l
l				l			on the display.
l
l				l			After some time, battery power will recover and the
	ll
			ll l l l l ll				recover indicator will disappear, indicating that the
							above functions are enabled again.
	l				l
	ll					l
	l						• If the recover indicator appears frequently, it probably
			l l l l l l		l
					l
Recover indicator							means that remaining battery power is low. Leave the
							watch in bright light to allow it to charge.

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Charging Guide

The following table shows the amount of time the watch needs to be exposed to light each day in order to generate enough power for normal daily operations.

Exposure Level (Brightness)	Approximate
	Exposure Time
Outdoor Sunlight (50,000 lux)	5 minutes
Sunlight Through a Window (10,000 lux)	24 minutes
Daylight Through a Window on a Cloudy Day (5,000 lux)	48 minutes
Indoor Fluorescent Lighting (500 lux)	8 hours

•For details about the battery operating time and daily operating conditions, see the “Power Supply” section of the Specifications (page E-95).

•Stable operation is promoted by frequent exposure to light.

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Timekeeping

The table below shows the amount exposure that is required to take the battery from one level to the next.

Exposure Level	Approximate Exposure Time
(Brightness)	Level 5	Level 4	Level 3		Level 2		Level 1
				▲		▲		▲
Outdoor Sunlight		2 hours			20 hours		6 hours
(50,000 lux)
Sunlight Through a		8 hours			99 hours		27 hours
Window (10,000 lux)
Daylight Through a		15 hours			- - - - - - - -		- - - - - - - -
Window on a Cloudy
Day (5,000 lux)
Indoor Fluorescent		172 hours			- - - - - - - -		- - - - - - - -
Lighting (500 lux)

•The above exposure time values are all for reference only. Actual required exposure times depend on lighting conditions.

Current Time

Day of week		Month – Day
l	ll
		l
l		l
l
l		l
ll

Hour : Minutes Seconds

PM indicator

▲		A
		▲
Tide site name
l	ll
	l
l		l
l
l		l
ll

Press the A button to view the current tide site name setting. Use the Timekeeping Mode to set and view the current time and date.

Read This Before You Set the Time and Date!

This watch is preset with a number of city codes, each of which represents the time zone where that city is located. When setting the time, it is important that you first select the correct city code for your Home City (the city where you normally use the watch). If your location is not included in the preset city codes, select the preset city code that is in the same time zone as your location.

•Note that all of the times for the World Time Mode city codes (page E-41) are displayed in accordance with the time and date settings you configure in the Timekeeping Mode.

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To set the time and date manually

				1. In the Timekeeping Mode, hold down A until the city
	ll l l l			code starts to flash, which indicates the setting screen.
l			l	2. Press Dand Bto select the city code you want.
l			l	• Make sure you select your Home City code before
	l		l l
l		l l l

changing any other setting.

• For full information on city codes, see the “City Code Table” at the back of this manual.

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

City Code	DST		12/24-Hour			Seconds		Hour		Minutes
				Format
Power Saving		Illumination			Button		Day		Month		Year
		Duration			Operation Tone

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• The following steps explain how to configure timekeeping settings only.

4.When the timekeeping setting you want to change is flashing, press D or Bto change it as described below.

Screen:	To do this:				Do this:
	Change the city code				Press D(east) and B
					(west).
	Cycle between Auto DST (			), Daylight	Press D.
	Saving Time (		) and Standard Time
	(	).
	Toggle between 12-hour (			) and 24-	Press D.
	hour (	) timekeeping
	Reset the seconds to				Press D.
	Change the hour and minutes				Press D(+) and B(–).

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