Casio 2628 Illumination, Stopwatch, Power Supply, About the Auto Light Switch, Alarm Operation, Battery Power Indicator and Recover Indicator

Hourly time signal on indicator

Snooze alarm indicator

Alarm on indicator

Operation Guide 2628

Illumination

To set an alarm time

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

1.In the Alarm Mode, use Dto scroll through the alarm screens until the one whose time you want to set is displayed.

AL1 AL2 AL3SIG SNZ AL4

2. After you select an alarm, hold down A until the hour

setting of the alarm time starts to flash, which indicates

the setting screen.

• This operation turns on the alarm automatically.

3. Use Cto move the flashing between the hour and

Auto light switch indicator

The 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 illuminates the display automatically when you angle the watch towards your face.

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

•See “Illumination Precautions” for other important information.To turn on illumination manuallyIn any mode, press Lto illuminate the display for about one second.

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

minute settings.

About the Auto Light Switch

4.While a setting is flashing, use D(+) and B(–) to change it.5.Press A to exit the setting screen.

•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).

Alarm Operation

The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in. In the case of the snooze alarm, the alarm operation is performed a total of seven times, every five minutes, or until you turn the alarm off.

•Pressing any button stops the alarm tone operation.

•Performing any one of the following operations during a 5-minute interval between snooze alarms cancels the current snooze alarm operation.

Displaying the Timekeeping Mode setting screen Displaying the snooze alarm setting screen

To test the alarmIn the Alarm Mode, hold down Bto sound the alarm.To turn an alarm on and off1. In the Alarm Mode, use Dto select an alarm.2. Press Bto toggle it on and off.•Turning on a one-time alarm (AL1, AL2, AL3,

AL4) displays the alarm on indicator on its Alarm Mode screen. Turning on the snooze alarm (SNZ) displays the alarm on indicator and snooze alarm indicator on its Alarm Mode screen.

• In all modes, the alarm on indicator is shown for any alarm that is currently turned on. When the snooze alarm is on, the snooze alarm indicator is displayed in all modes.

•The alarm on indicator flashes while the alarm is sounding.

•The snooze alarm indicator flashes during the 5-minute intervals between alarms.

To turn the Hourly Time Signal on and off1. In the Alarm Mode, use Dto select the Hourly Time Signal (SIG).

2. Press Bto toggle it on (Hourly Time Signal on indicator displayed) and off (Hourly Time Signal on indicator not displayed).

• The Hourly Time Signal on indicator is displayed in all modes when the Hourly Time Signal is turned on.

Stopwatch

Turning on the auto light switch causes illumination to turn on whenever you position your wrist as described below in any mode. Note that this watch features a “Full Auto EL Light”, so the auto light switch operates only when available light is below a certain level. It does not illuminate the display under bright light.

Moving the watch to a position that is parallel to the ground and then tilting it towards you at more than 40 degrees causes illumination to turn on.

•Wear the watch on the outside of your wrist.

Parallel to	More than
ground	40°

Warning!

•Always make sure you are in a safe place whenever you are reading the watch using the auto light switch. Be especially careful when running or engaged in any other activity that can result in accident or injury. Also take care that sudden illumination by the auto light switch does not startle or distract others around you.

•When you are wearing the watch, make sure that its auto light switch is turned off before riding on a bicycle, or operating a motorcycle or any other motor vehicle. Sudden and unintended operation of the auto light switch can create a distraction, which can result in a traffic accident and serious personal injury.

To turn the auto light switch on and off

In any mode (except when a setting screen is on the display), hold down L for about two seconds to toggle the auto light switch on (auto light switch indicator displayed) and off (auto light switch indicator not displayed).

•The auto light switch indicator remains in all modes while the auto light switch is turned on.

Power Supply

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	Solar cell
is pointing at a light source.
• 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

HoursMinutesSeconds

Timekeeping

Mode time

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.

•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.

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.

To measure times with the stopwatchElapsed Time

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

• 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 exposed to bright

light when storing it for long periods. This helps to keep the rechargeable battery

from going dead.

Battery Power Indicator and Recover Indicator

The battery power indicator shows you the current power level of the rechargeable battery.

Battery power indicator	Level Battery Power Indicator		Function Status
Battery power indicator
	1		All functions enabled.
	2		All functions enabled.
	3		Alarm, hourly time signal,
	3		illumination, calibration
	lll l l l	l	illumination, calibration
	ll	l	signal reception, display, and
	ll l l l l	l l ll	signal reception, display, and
Recover indicator		l
Recover indicator	(Charge Soon Alert)		buttons are disabled.
			buttons are disabled.

	4		All functions, including
	4		timekeeping, disabled and
			timekeeping, disabled and
			initialized.