More than 15 degrees too high

USER’S GUIDE 2430

Alarm Operation

The alarm tone sounds and an alarm graphic flashes at the preset time for about 20 seconds.

Pressing any button stops the alarm operation.

To test the alarm

In the Alarm Mode, hold down C to sound the alarm.

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

1. In the Alarm Mode, use C to select an alarm or the Hourly Time Signal.

2. When the alarm or the Hourly Time Signal you want is selected, press A to turn it on ( displayed) and off ( not displayed).

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.

If any alarm is on, the alarm on indicator is shown on the display when you change to another mode.

Hourly time signal on indicator

Alarm on indicator

Dual Time

Hour : Minutes

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

different time zone.

 

 

Graphic

Mode

In the Dual Time Mode, the seconds count is synchronized

(seconds)

indicator

with the seconds count of the Timekeeping Mode.

 

 

To set the Dual Time

 

 

1. Press B to enter the Dual Time Mode.

 

 

2. Use A and C to set the Dual Time Mode time.

 

 

Each press of C changes the time setting in 30-minute

 

 

increments.

 

 

Pressing A sets the Dual Time Mode to the same time

 

 

as the Timekeeping Mode.

Seconds

 

Backlight

 

 

 

 

The backlight uses an EL (electro-luminescent) panel that

 

 

causes the entire display to glow for easy reading in the

 

 

dark. The watch’s auto light switch automatically turns on

 

 

the backlight 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 “Backlight Precautions” for other important

 

 

information about using the backlight.

 

 

To turn on the backlight manually

Auto light switch indicator

In any mode, press L to illuminate the display for about

two seconds.

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

About the Auto Light Switch

Turning on the auto light switch causes the backlight to turn on for about two seconds, whenever you position your wrist as described below in any mode.

Be sure to wear the watch on the outside of your left wrist while using the auto light switch.

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

Parallel to ground

More than 40 °

Warning!

Always make sure you are in a safe place whenever you are reading the display of 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 surprise 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 the Timekeeping Mode, hold down L for about two seconds to toggle the auto light switch on (Auto light switch indicator displayed) or off (Auto light switch indicator not displayed).

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

In order to protect against running down the battery, the auto light switch automatically turns off approximately six hours after you turn it on. Repeat the above procedure to turn the auto light switch back on if you want.

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 Display

Auto Display continually changes the contents of the digital display.

To turn off Auto Display

Press any button (except for L) to turn off Auto Display.

This returns to the Timekeeping Mode.

To turn on Auto Display

Hold down B for about two seconds until the watch beeps.

Note that Auto Display cannot be performed while a setting screen is on the display.

Auto return features

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

Data and Setting Scrolling

The C button is used in various setting screens to scroll through data on the display. In most cases, holding down this button during a scroll operation scrolls through the data at high speed.

Initial Screens

When you enter the Alarm Mode, the data you were viewing when you last exited the mode appears first.

Backlight Precautions

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

The illumination provided by the backlight may be hard to see when viewed under direct sunlight.

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.

The backlight automatically turns off whenever an alarm sounds.

Frequent use of the backlight shortens the battery life.

Auto light switch precautions

Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light switch to operate when it is not needed, which shortens battery life. If you want to wear the watch on the inside of your wrist, turn off the auto light switch feature.

The backlight may not light if the face of the watch is more than 15 degrees above or below parallel. Make sure that the back of your hand is parallel to the ground.

The backlight turns off in about two seconds, even if you keep the watch pointed towards your face.

Static electricity or magnetic force can interfere with proper operation of the auto light switch. If the backlight does not light, try moving the watch back to the starting position (parallel with the ground) and then tilt it back toward you again. If this does not work, drop your arm all the way down so it hangs at your side, and then bring it back up again.

Under certain conditions, the backlight may not light until about one second after you turn the face of the watch towards you. This does not necessarily indicate malfunction of the backlight.

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