G-Shock GW-4000 User Manual

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MA1108-EA

Operation Guide 5087

About This Manual

Button operations are indicated using the letters A through D shown in the illustration.

Hand Functions

Hour Hand Second Hand Minute Hand

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E-2

2. Check the Home City and the daylight saving time (DST) setting.

Use the procedure under “To conﬁ gure Home City settings” (page E-33) to conﬁ gure your Home City and daylight saving time settings.

Important!

Proper time calibration signal reception and World Time settings depend on correct Home City, time, and date settings in the Timekeeping Mode. Make sure you conﬁ gure these settings correctly.

3. Set the current time.

x To set the time using a time calibration signal

See “To get ready for a receive operation” (page E-22).

x To set the time manually

See “Conﬁ guring Current Time and Date Settings Manually” (page E-37).

24-hour Hand Left Dial Hands Right Dial Hand: Indicates the current mode. Day

This User’s Guide uses numbers shown above to identify watch hands and indicators.

Congratulations upon your selection of this CASIO watch.

This watch does not have a city code that corresponds to the UTC offset of –3.5 hours. Because of this, the radio-controlled atomic timekeeping function will not display the correct time for Newfoundland, Canada.

Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by you or any third party arising through the use of this product or its malfunction.

Things to check before using the watch

1. Hold down C for about two seconds to enter the Timekeeping Mode, and

ENGLISH

then observe the movement of the

Is the x Second Hand moving smoothly in one-second intervals?

Is the x Second Hand moving at two-second intervals or is it stopped completely?

Power is low. Charge the watch by placing it in a location where it is exposed to light. For details, see “Charging the Watch” (page E-9).

The watch is now ready for use.

For details about the watch’s radio controlled timekeeping feature, see “Radio Controlled Atomic Timekeeping” (page E-17).

YES

Second Hand.

The watch is charged sufﬁ ciently. For details about charging, see “Charging the Watch” (page E-9).

Go to step 2.

YES

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Contents

E-2 About This Manual E-3 Things to check before using the watch E-9 Charging the Watch

E-16 To recover from the sleep state

E-17 Radio Controlled Atomic Timekeeping

E-22 To get ready for a receive operation E-25 To perform manual receive E-27 To check the result of the latest receive operation

E-29 Mode Reference Guide

E-30 To determine the watch’s current mode E-30 To return to the Timekeeping Mode from any other mode E-31 To select a mode

E-32 Timekeeping

E-6

E-53 Using the Alarm

E-54 To change the alarm time setting E-54 To turn the alarm on or off E-54 To stop the alarm

E-55 Auto Correction of Hand Home Positions

E-56 To trigger auto correction of hand home positions

E-58 Adjusting the Home Positions Manually

E-59 To adjust the home positions

E-63 Troubleshooting E-72 Speciﬁ cations

E-8

E-33 Conﬁ guring Home City Settings

E-33 To conﬁ gure Home City settings E-35 To toggle the Home City time between standard time and daylight

E-37 Conﬁ guring Current Time and Date Settings Manually

E-44 Using the Stopwatch

E-47 Checking the Current Time in a Different Time Zone

saving time

E-37 To change the current time setting manually E-40 To change the current date setting manually

E-45 To perform elapsed time measurement E-45 To perform an elapsed time operation E-45 To pause at a split time

E-48 To view the time in another time zone E-49 To specify standard time or daylight saving time (DST) for a city E-51 To swap your Home City and World Time City

Charging the Watch

The face of the watch is a solar panel that generates power from light. The generated power charges a built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed to light.

Charging Guide

Whenever you are not wearing the watch, be sure to leave it in a location where it is exposed to light.

Best charging

performance is achieved by exposing the watch to light that is as strong as possible.

When wearing the watch, makes sure that its face is not blocked from light by the sleeve of your clothing.

The watch may enter a

sleep state (page E-15) if its face is blocked by your sleeve even only partially.

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E-9

Operation Guide 5087

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Warning! Leaving the watch in bright light for charging 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 x Under direct sunlight x

Important!

Keep the watch in an area normally exposed to bright light when storing it for long periods. This helps to ensure that power does not run down. Storing the watch for long periods in an area where there is no light or wearing it in x such a way that it is blocked from exposure to light can cause power to run down. Make sure that the watch is exposed to bright light whenever possible.

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Level Hand Movement Function Status

1 Normal. All functions enabled

xx Second Hand moving at two-second

intervals.

mm Day changes to 1 (home position). xx Second Hand stopped.

zz Hour Hand and cc Minute Hand stopped

at 12 o’clock.

When power drops to Level 3, all functions will be disabled but the watch will x continue to keep time internally for about one week. If you recharge the battery sufﬁ ciently during this period, the analog hands will move automatically to the correct setting and regular timekeeping will resume. After one week, all settings (including timekeeping) will be cleared. Recharging the battery will reset all settings to their initial factory defaults.

E-12

Beeper and time calibration signal reception disabled

All functions disabled

Charging Times

Exposure Level (Brightness)

Outdoor sunlight (50,000 lux) 8 minutes 2 hours 22 hours

Window sunlight (10,000 lux) 30 minutes 6 hours 84 hours

Window sunlight on cloudy day (5,000 lux)

Indoor ﬂ uorescent lighting (500 lux) 8 hours 91 hours – – –

1 Approximate exposure each day to generate power for normal daily operation. * 2 Approximate exposure to take power up one level. *

The above exposure times all are for reference only. Actual exposure times depend

on lighting conditions. For details about the operating time and daily operating conditions, see the “Power x Supply” section of the Speciﬁ cations (page E-73).

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Daily

Operation

48 minutes 8 hours – – –

Level Change *2

Level 3 Level 2 Level 1

Power Levels

You can get an idea of the watch’s power level by observing the movement of the Timekeeping Mode.

Second Hand is moving normally in one-second

If the intervals, power is at Level 1. If the

Second Hand is moving at two-second intervals,

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Moves at two-second intervals.

Power Recovery Mode

The watch is designed to go into a power recovery mode that stops hand operation temporarily whenever power suddenly drops below a certain level due to overuse of the alarm tone over a short period. Note that all operations are disabled while the watch is in the power recovery mode. The hands will move to the correct positions and the watch will resume normal operation after power recovers (in about 15 minutes). Putting the watch in a location where it is exposed to light will help power to recover sooner.

Power Saving

Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area where it is dark. The table below shows how watch functions are affected by Power Saving.

There actually are two sleep state levels: “second hand sleep” and “function sleep”.

Elapsed Time in Dark Operation

60 to 70 minutes (second hand sleep)

6 or 7 days (function sleep)

The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch x is already in a sleep state when 6:00 AM arrives, however, it will remain in the sleep state. The watch will not enter a sleep state while it is in the Stopwatch Mode.

power is at Level 2, which is quite low. Expose the watch to light as soon as possible so it can charge.

Second Hand only is stopped at 12 o’clock, all other

functions are enabled.

All functions, including analog timekeeping, disabled x Internal timekeeping maintained. x

Second Hand in the

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E-15

To recover from the sleep state

Move the watch to a well-lit area or press any button.

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Important!

x HNL (HONOLULU) and ANC (ANCHORAGE) are quite far

The areas covered by from the calibration signal transmitters, so certain conditions may cause reception problems. When

x HNL (HONOLULU) or HKG (HONG KONG) is selected as the Home City,

only the time and date are adjusted according to the time calibration signal. You need to switch manually between standard time and daylight saving time (DST) if required. See “To toggle the Home City time between standard time and daylight saving time” (page E-35) for information about how to do this.

E-18

Radio Controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly. However, when using the watch outside of areas covered by time calibration signals, you will have to adjust the settings manually as required. See “Conﬁ guring Current Time and Date Settings Manually” (page E-37) for more information.

This section explains how the watch updates its time settings when the city code selected as the Home City is in Japan, North America, Europe, or China, and is one that supports time calibration signal reception.

If your Home City Code setting is this:

LON (LONDON), PAR (PARIS), ATH (ATHENS) Anthorn (England), Mainﬂ ingen (Germany)

HKG (HONG KONG) Shangqiu City (China)

TYO (TOKYO) Fukushima (Japan), Fukuoka/Saga (Japan)

HNL (HONOLULU), ANC (ANCHORAGE), LAX (LOS ANGELES), DEN (DENVER), CHI (CHICAGO), NYC (NEW YORK)

Approximate Reception Ranges

UK and German Signals North American Signal

Anthorn

500 kilometers

1,500 kilometers

The Anthorn signal is receivable within this area.

Mainﬂ ingen

The watch can receive the signal from the transmitter located here:

Fort Collins, Colorado (United States)

2,000 miles (3,000 kilometers)

600 miles (1,000 kilometers)

Fort Collins

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Operation Guide 5087

Japanese Signal Chinese Signal

Fukushima

500 kilometers

Fukuoka/Saga

1,000 kilometers

Changchun500 kilometers

1,500 kilometers

Beijing Shangqiu Shanghai Chengdu Hong Kong

Even when the watch is within range of a transmitter, signal reception may be x impossible due to the effects of geographic contours, structures, weather, the time of year, the time of day, radio interference, etc. The signal becomes weaker at distances of approximately 500 kilometers, which means that the inﬂ uence of the conditions listed above becomes even greater. Signal reception may not be possible at the distances noted below during certain

times of the year or day. Radio interference may also cause problems with reception.

Mainﬂ ingen (Germany) or Anthorn (England) transmitters: 500 kilometers

−

(310 miles) Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)

−

Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles) − Shangqiu (China) transmitter: 500 kilometers (310 miles) −

As of December 2010, China does not use Daylight Saving Time (DST). If China x does go to the Daylight Saving Time system in the future, some functions of this watch may no longer operate correctly.

E-20

To get ready for a receive operation

Conﬁ rm that the watch is in the Timekeeping Mode. If it isn’t, hold down 1. C for about two seconds to enter the Timekeeping Mode.

Place the watch in a location where signal reception is good.2.

12 o’clock

E-22

What you should do next depends on whether you are using Auto Receive or 3. Manual Receive.

Auto Receive: Leave the watch over night in the location you selected in step 2.

See “Auto Receive” on page E-24 for details.

Manual Receive: Perform the operation under “To perform manual receive” on page E-25.

Auto Receive

With Auto Receive, the watch performs the receive operation each day automatically up to six times (up to ﬁ ve times for the Chinese calibration signal) between the hours of midnight and 5 a.m. (according to the Timekeeping Mode time). When any receive operation is successful, none of the other receive operations for that day are performed. When a calibration time is reached, the watch will perform the receive operation

only if it is in the Timekeeping Mode or World Time Mode. The receive operation is not performed if a calibration time is reached while you are conﬁ guring settings.

E-24

Position the watch as shown in the nearby illustration, with 12 o’clock pointed towards a window. Make sure there are no metal objects nearby. Signal reception normally is better

at night. The receive operation takes from two

to seven minutes, but in some cases it can take as long as 14 minutes. Take care that you do not perform any button operation or move the watch during this time.

Signal reception may be difﬁ cult or even impossible under the conditions x described below.

Inside or among buildings

To perform manual receive

In the Timekeeping Mode, keep 1. A depressed (for about two seconds) as the

The 2.

Inside a vehicle

Second Hand goes through the following sequence.

Moves to x Y (or YES for some models) or N (NO) to indicate the last signal reception result, then to R (READY).

Near household appliances, ofﬁ ce equipment, or a mobile phone

Near a construction site, airport, or other sources of electrical noise

Near high-tension power lines

Second Hand indicates the operations the watch is currently performing.

When the xx Second Hand is pointed here:

R (READY) Watch is setting up for reception.

W (WORK) Reception is in progress.

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Y (YES)

N (NO) Reception failed for some reason.

If signal reception is unstable, the x xx Second Hand may move between W (WORK) and R (READY).

It means this:

Reception was completed successfully.

Among or behind mountains

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The receive operation is complete when the 3. Hand moves to Y (YES) or N (NO) for about ﬁ ve seconds, and then resumes regular timekeeping.

You can return to the Timekeeping Mode manually by

pressing A while the x Second Hand is pointing to Y (YES) or N (NO). When the receive operation is successful, the watch

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E-26

Radio-controlled Atomic Timekeeping Precautions

Strong electrostatic charge can result in the wrong time setting. Even if a receive operation is successful, certain conditions can cause the time x setting to be off by up to one second. The watch is designed to update the date and day of the week automatically for x the period January 1, 2000 to December 31, 2099. Updating of the date by signal reception will no longer be performed starting from January 1, 2100.

If you are in an area where signal reception is not possible, the watch keeps time with the precision noted in “Speciﬁ cations” (page E-72). The receive operation is disabled under any of the following conditions. x

While power is at Level 2 or lower (page E-11) − While the watch is in the power recovery mode (page E-13) − When the watch is in the function sleep state (power saving, page E-15) −

A receive operation is cancelled if an alarm sounds while it is being performed. x

adjusts the time setting accordingly. It does not adjust the setting if the operation failed.

Note

To interrupt a receive operation and return to the x Timekeeping Mode, press any button.

E-28

Second

Mode Reference Guide

Your watch has ﬁ ve “modes”. The mode you should select depends on what you want to do.

To do this: Enter this mode: See:

View the current time in your Home City and in one x of 29 other cities around the globe

View the current date in the Home City x Conﬁ gure Home City and daylight saving time x

(DST) settings Perform a time calibration receive operation

Conﬁ gure time and date settings manually x

Use the stopwatch to measure elapsed time Stopwatch Mode E-44

View the current time in one of 29 cities (time zones) around the globe

Set an alarm time Alarm Mode E-53

To check the result of the latest receive operation

In the Timekeeping Mode, press A.

xx Second Hand will move to Y (YES) for ﬁ ve

The seconds if the latest receive operation was successful, or N (NO) if it was not. After that, regular timekeeping will resume. You can return to the Timekeeping Mode manually by

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pressing A while the x Second Hand is pointing to Y (YES) or N (NO).

Note

The xx Second Hand will indicate N (NO) if you have adjusted the time or date setting manually since the latest receive operation.

Timekeeping Mode E-32

World Time Mode E-47

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