G-Shock GWF-T1030E-9JR User Manual

MO1002-EB

Operation Guide 3184

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to read this manual carefully.

• The measurement functions built into this watch are not intended for taking measurements that require professional or industrial precision. Values produced by this watch should be considered as reasonable representations only.

• The Moon phase indicator and tide graph data that appear on the display of this watch are not intended for navigation purposes. Always use proper instruments and resources to obtain data for navigation purposes.

• This watch is not a precision instrument for calculating low tide and high tide times. The tide graph of this watch is intended to provide a reasonable approximation of tidal movements only.

• 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.

Keep the watch exposed to bright light

Bright Light

Solar cell

Warning!

The electricity generated by the solar cell of the watch is stored by a rechargeable battery. Leaving or using the watch where it is not exposed to light causes the battery to run down. Make sure the watch is exposed to light as much as possible.

• When you are not wearing the watch on your wrist, position the face so it is pointed at a source of bright light.

• You should try to keep the watch outside of your sleeve as much as possible. Charging is reduced significantly if the face is covered only partially.

• The watch continues to operate, even when it is not exposed to light. Leaving the watch in the dark can cause the battery to run down, which will result in some watch functions to be disabled. If the battery goes dead, you will have to re-configure watch settings after recharging. To ensure normal watch operation, be sure to keep it exposed to light as much as possible.

Battery charges in the light. Battery discharges in the dark.

Solar cell (Converts light to electrical power.)

• The actual level at which some functions are disabled depends on the watch model.

• Frequent display illumination can run down the battery quickly and require charging.

The following guidelines give an idea of the charging time required to recover from a single illumination operation.

Approximately 5 minutes exposure to bright sunlight coming in through a window Approximately about 8 hours exposure to indoor fluorescent lighting

• Be sure to read “Power Supply” for important information you need to know when exposing the watch to bright light.

If the display of the watch is blank...

If the display of the watch is blank, it means that the watch’s Power Saving function has turned off the display to conserve power.

• See “Power Saving Function” for more information.

About This Manual

Bright Light

LEVEL 1

LEVEL 2

LEVEL 3

Charge

LEVEL 4

Rechargeable battery

Electrical energy

All functions enabled

• Button operations are indicated using the letters shown in the illustration.

• Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the “Reference” section.

Dis-

charge

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

Some or all functions disabled

General Guide

• Press C to change from mode to mode.

• Holding down C for about one second in any mode switches directly to the Diving

Mode. Holding down C for about one second in the Diving Mode switches to the Timekeeping Mode.

• In any mode (except when a setting screen is on the display),

press B to illuminate the display.

Diving Mode

Hold down C.

▲

Timekeeping Mode

▲

Press C.

▲

Radio-controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly.

• This watch is designed to pick up the time calibration signals transmitted in Germany (Mainflingen), England (Anthorn), the United States (Fort Collins), China (Shangqiu), and Japan (Fukushima, Fukuoka/Saga).

Current Time Setting

This watch adjusts its time setting automatically in accordance with a time calibration signal. You also can perform a manual procedure to set the time and date, when necessary.

• The first thing you should do after purchasing this watch is to specify your Home City (the city where you normally will use the watch). For more information, see “To specify your Home City” below.

• When using the watch outside the areas covered by the time signal transmitters, you will have to adjust the current time setting manually as required. See “Timekeeping” for more information about manual time settings.

• The U.S. time calibration signal can be picked up by the watch while in North America. The term “North America” in this manual refers to the area that consists of Canada, the continental United States, and Mexico.

• As of January 2009, China does not use Daylight Saving Time (DST). If China does go to the Daylight Saving Time system in the future, some functions of this watch may no longer operate correctly when receiving the China time calibration signal.

To specify your Home City

City code

Hour : Minutes

PM indicator

HNL : Honolulu ANC : Anchorage YVR, LAX : Vancouver, Los Angeles YEA, DEN: Edmonton, Denver MEX, CHI : Mexico City, Chicago NYC : New York YHZ : Halifax YYT : St.Johns

1. In the Timekeeping Mode, hold down A until the city

code starts to flash, which indicates the setting screen.

2. Press D (east) and B (west) to select the city code

you want to use as your Home City.

LIS, LON : Lisbon, London MAD, PAR , ROM, BER, STO : Madrid, Paris,

Rome, Berlin, Stockholm

ATH : Athens

Seconds

MOW : Moscow HKG, BJS, TPE : Hong Kong, Beijing, Taipei SEL, TYO : Seoul, Tokyo

Diving Log Recall Mode Tide/Moon Data Mode

▲

World Time Mode

▲

Countdown Timer Mode Stopwatch Mode Alarm Mode

▲

3. Press A to exit the setting screen.

• Normally, your watch should show the correct time as soon as you select your Home City code. If it does not, it should adjust automatically after the next auto receive operation (in the middle of the night). You also can perform manual receive or you can set the time manually.

• The watch will receive the time calibration signal automatically from the applicable transmitter (in the middle of the night) and update its settings accordingly. For information about the relationship between city codes and transmitters, see “Important!” under “Time Calibration Signal Reception” and “Transmitters”.

• See the maps under “Approximate Reception Ranges” for information about the reception ranges of the watch.

• You can disable time signal reception, if you want. See “To turn auto receive on and off” for more information.

• Under factory default settings, auto receive is turned off for the following city codes: MOW (Moscow), HNL (Honolulu), and ANC (Anchorage). For details about turning on auto receive for these city codes, see “To turn auto receive on and off”.

Time Calibration Signal Reception

There are two different methods you can use to receive the time calibration signal: auto receive and manual receive.

• Auto Receive

With auto receive, the watch receives the time calibration signal automatically up to six times a day (five times a day for the Chinese calibration signal). When any auto receive is successful, the remaining auto receive operations are not performed for that day. For more information, see “About Auto Receive”.

• Manual Receive

Manual receive lets you start a time calibration receive operation with the press of a button. For more information, see “To perform manual receive”.

▲

Operation Guide 3184

Important!

• When getting ready to receive the time calibration signal, position the watch as shown in the nearby illustration, with its 12 o’clock side pointing towards a window. This watch is designed to receive a time calibration signal late at night. Because of this, you should place the watch near a window as shown in the illustration when you take it off at night. Make sure there are no metal objects nearby.

12 o’clock

• Make sure the watch is facing the right way.

• Proper signal reception can be difficult or even impossible under the conditions listed

below.

Near

Inside or among buildings

• Signal reception normally is better at night than during the day.

• Time calibration signal reception 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 operations or move the watch during this time.

• The time calibration signal the watch will attempt to pick up depends on its current Home City code setting as shown below.

LIS, LON, MAD, PAR, ROM,

BER, STO, ATH, MOW*

HNL*, ANC*, YVR, LAX, YEA,

DEN, MEX, CHI, NYC, YHZ, YYT

* The areas covered by the HNL, ANC, and MOW city codes are quite far from the

time calibration signal transmitters, and so certain conditions may cause problems with signal reception.

• Calibration signal reception is disabled while a countdown timer operation is in progress.

Inside a vehicle

Home City Code

HKG, BJS

TPE, SEL, TYO

household appliances, office equipment, or a mobile phone

Transmitter

Anthorn (England) Mainflingen (Germany) Shangqiu City (China) Fukushima (Japan) Fukuoka/Saga (Japan) Fort Collins, Colorado

(the United States)

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

Near hightension power lines

Among or behind mountains

Frequency

60.0 kHz

77.5 kHz

68.5 kHz

40.0 kHz

60.0 kHz

Approximate Reception Ranges

U.K. and German Signals

1,500 kilometers

Anthorn

500 kilometers

The Anthorn signal is receivable within this area.

Japan Signals

500 kilometers

Fukuoka/Saga

1,000 kilometers

Signals are receivable in the Taiwan area when reception conditions are good.

1,500 kilometers

500 kilometers

Chengdu

Shangqiu

• Signal reception may not be possible at distances in excess of those noted below during certain times of the year or day. Radio interference also may cause problems with reception.

Mainflingen (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: 1,500 kilometers (910 miles)

• Even when the watch is within the reception range of the transmitter, signal reception will be impossible if the signal is blocked by mountains or other geological formations between the watch and signal source.

• Signal reception is affected by weather, atmospheric conditions, and seasonal changes.

• See the information under “Signal Reception Troubleshooting” if you experience problems with time calibration signal reception.

Mainflingen

U.S. Signal

500 kilometers

Fukushima

1,000 kilometers

China Signal

2,000 miles (3,000 kilometers)

600 miles (1,000 kilometers)

Fort Collins

Changchun

Beijing

Shanghai

Hong Kong

About Auto Receive

The watch receives the time calibration signal automatically up to six times a day (five times a day for the Chinese calibration signal). When any auto receive is successful, the remaining auto receive operations are not performed. The reception schedule (calibration times) depends on your currently selected Home City, and whether standard time or Daylight Saving Time is selected for your Home City.

Your Home City

Standard Time

LIS

Daylight Saving Time

LON

Standard Time

MAD

Daylight Saving Time

PAR ROM BER STO

Standard Time

ATH

Daylight Saving Time Standard Time

MOW

Daylight Saving Time

HKG

Standard Time and

BJS

Daylight Saving Time

TPE

Standard Time SEL TYO

HNL

Standard Time and ANC

Daylight Saving Time YVR LAX YEA DEN MEX CHI NYC YHZ YYT

Note

• When a calibration time is reached, the watch will receive the calibration signal only if it is in either the Timekeeping Mode or World Time Mode. Reception is not performed if a calibration time is reached while you are configuring settings.

• Auto receive of the calibration signal is designed to be performed early in the morning, while you sleep (provided that the Timekeeping Mode time is set correctly). Before going to bed for the night, remove the watch from your wrist, and put it in a location where it can receive the signal easily.

• The watch receives the calibration signal for two to seven minutes everyday when the time in the Timekeeping Mode reaches a calibration time. Do not perform any button operation within seven minutes before or after the calibration times. Doing so can interfere with correct calibration.

• Remember that reception of the calibration signal depends on the current time in the Timekeeping Mode. The receive operation will be performed whenever the display shows any one of the calibration times, regardless of whether or not the displayed time actually is the correct time.

About the Signal Strength Indicator

The signal strength indicator shows the strength of the calibration signal being received. For best reception, be sure to keep the watch in a location where signal strength is strongest. The signal strength indicator is displayed while an auto or manual receive operation is in progress.

Settings updated indicator

Signal strength indicator

• Even in an area where signal strength is strong, it takes about 10 seconds for signal reception to stabilize enough for the signal strength indicator to indicate signal strength.

• Use the signal strength indicator as a guide for checking signal strength and for finding the best location for the watch during signal receive operations.

• Following reception of the time calibration signal and calibration of the watch’s time setting, the settings updated indicator will remain on the display in all modes. The settings updated indicator will not be displayed if signal reception was unsuccessful or after you adjust the current time setting manually.

• The settings updated indicator is displayed only when the watch is able to receive both time and date data successfully. It does not appear when only time data is received.

• The settings updated indicator indicates that at least one of the auto calibration signal receive operations was successful. Note, however, that the settings updated indicator disappears from the display each day when the first auto receive operation of the day is performed.

To perform manual receive

Receiving

Settings updated indicator

Receive successful

12 3456

1:00 am 2:00 am

2:00 am 3:00 am

3:00 am 4:00 am

4:00 am 5:00 am

1:00 am

Midnight

1. Enter the Timekeeping Mode.

2. Hold down D for about two seconds until the settings

updated indicator starts to flash on the display. This indicates that manual receive is in progress.

• Time calibration signal reception takes from two to seven minutes. Take care that you do not perform any button operations or move the watch during this time.

• If the receive operation is successful, the reception date and time appear on the display, along with the

GET indicator.

3. After manual receive is complete, press D to return to

normal timekeeping.

• The watch also will return to normal timekeeping if you do not perform any button operation for about one or two minutes.

Auto Receive Start Times

2:00 am

3:00 am

4:00 am

3:00 am

4:00 am

5:00 am

4:00 am

5:00 am

Midnight*

5:00 am

Midnight*

1:00 am*

2:00 am

3:00 am

1:00 am

2:00 am

1:00 am

2:00 am

Weak

(Level 1)

4:00 am 5:00 am

5:00 am Midnight*

Midnight* 1:00 am*

1:00 am* 2:00 am*

4:00 am

3:00 am

5:00 am Midnight*

Midnight* 1:00 am*

1:00 am* 2:00 am*

2:00 am* 3:00 am*

5:00 am

4:00 am

Strong

(Level 3)

Midnight* 1:00 am*

1:00 am* 2:00 am*

2:00 am* 3:00 am*

3:00 am* 4:00 am*

5:00 am

*Next day

Operation Guide 3184

Receive failed

If there was a previously successful reception on the current day

If no reception was successful

To turn auto receive on and off

On/Off status

To check the latest signal reception results

Signal Reception Troubleshooting

Check the following points whenever you experience problems with signal reception.

Cannot perform manual receive.

Auto receive is turned on, but the settings updated indicator does not appear on the display.

Time setting is incorrect following signal reception.

• For further information, see “Important!” under “Time Calibration Signal Reception” and “Radio-controlled Atomic Timekeeping Precautions.

• If the latest reception fails but a previous reception was successful on the current day, the settings updated indicator will be on the display.

Note

• To interrupt a receive operation and return to normal timekeeping, press D.

1. In the Timekeeping Mode, press D to display the last

successful receive time and date screen.

2. Hold down A until the current auto receive setting (

or ) starts to flash. This is the setting screen.

• Note that the setting screen will not appear if the currently selected Home City is one that does not support time calibration reception.

3. Press D to toggle auto receive on (

4. Press A to exit the setting screen.

• For information about city codes that support signal receive, see “To specify your Home City”.

In the Timekeeping Mode, press D to view the last successful receive time and date. Press D again to return to the previous screen.

• The watch also will return to normal timekeeping if you do not perform any button operation for about one or two minutes.

What you should doProblem Probable Cause

• The watch is not in the Timekeeping Mode.

• Your current Home City is not one of the following: LIS, LON,

MAD, PAR , ROM, BER, STO, ATH , MOW, HKG, BJS, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, CHI, NYC, YHZ, or YYT

• You changed the time setting manually.

• The DST setting was changed manually in the World Time Mode.

• You pressed a button while signal receive was in progress.

• Even if receive is successful, the settings updated indicator will disappear from the display each day when the first auto receive operation of the day is performed.

• Time data (hour, minutes, seconds) only was received during the last receive operation. The settings updated indicator appears only when time data and date data (year, month, day) are both received.

• If the time is one hour off, the DST setting may be incorrect.

• The Home City code setting is not correct for the area where you are using the watch.

• Enter the Timekeeping Mode and try again.

• Select LIS, LON, MAD, PAR , ROM, BER, STO, ATH , MOW, HKG, BJS, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, CHI, NYC, YHZ, or YYT as your Home City.

• Perform manual signal receive or wait until the next auto signal receive operation is performed.

• Check to make sure the watch is in a location where it can receive the signal.

• Change the DST setting to Auto DST.

• Select the correct Home City code.

) and off ( ).

Using the Diving Mode

You can use the Diving Mode to keep log records of the duration of each of your dives. Each log record includes a log number, the dive time, and the dive start date and time. There is enough memory to hold up to 10 diving log records. You can use the Diving Log Recall Mode to display diving log records currently in memory.

• Use C to enter the Diving Mode as shown under “General Guide”.

• If you leave the watch in the Diving Mode for about 11 to 12 hours, it will

automatically switch to the Timekeeping Mode.

Diving Mode Screens

Dive Time Measurement

Reset Screen

Mode name

Ongoing Dive Time

Measurement Screen

Dive start time

Dive Graph

Measuring Units and Ranges

Dive Time

Unit: 1 second Range: 23:59'59'' (24 hours)

Dive Interval Time

Unit: 1 minute Range: 47:59' (48 hours)

• When the interval time exceeds the above range, interval time measurement automatically stops and the current interval time disappears from the screen of the newest diving log record.

About the Interval

The interval is time that elapses between the stop of the last dive and the start of the next dive. The watch starts an interval measurement whenever you press A at the end of a dive to reset dive time measurement.

• Note that the current ongoing interval time is shown on the screen of the newest record in diving log memory. It is not displayed in the Diving Mode. For information about viewing diving log records, “Diving Log Records”.

• The interval is displayed on the screen of the newest diving log, only while an interval timing operation is in progress.

Starting and Stopping Dive Time Measurement

To reset a dive time measurement and start interval measurement

While dive time measurement is stopped, press A.

• This creates new diving log record with the currently displayed dive time information and starts interval measurement. Current ongoing interval measurement is shown on the screen of the newly created record.

To reset a dive time measurement and exit the Diving Mode

While dive time measurement is stopped, hold down C for about one second.

• This creates new diving log record with the currently displayed information and exits the Diving Mode to the Timekeeping Mode.

• See “Diving Log Records” for more information.

Diving Time Measurement Example

• Single dive

DStart DStop

Dive time

0:00'00'' 0:20'13''

0:00'00''

• Multiple dives and intervals

DStart DStop DStart DStop

0:00'00'' 0:15'10'' 0:00'00'' 0:17'15''

Important!

• Pressing D again after stopping dive time measurement will cause timing to resume from where it was stopped.

• Dive time/interval measurement continues internally if you exit the Diving Mode without resetting. A diving log record is not created in this case.

Diving Log Records

A new diving log record is created whenever you reset a dive time measurement, either by pressing A to start interval measurement or by holding down C to exit the Diving Mode.

• Each diving log record includes a log number, the dive time, the dive start date and time, and the interval prior to the dive (if there was one).

• There is enough memory for 10 diving log records. If there are already 10 diving log records in memory when you perform a reset operation, the oldest record currently in memory is deleted automatically to make room for the new record.

To view diving log records

1. In the Timekeeping Mode, press C to enter the Diving Log Recall Mode.

• This displays the newest record in memory.

• The interval currently being measured is displayed on the screen of the newest

• “-:--” will appear on the screen if there is no diving log data stored in memory.

• If you do not perform any operation for about one or two hours in the Diving Log

2. Press D to scroll through the log records, from newer to older.

• Log numbers are lower for older log records.

AReset

Dive Time 1 Dive Time 2

diving log record.

Recall Mode, the watch will automatically return to the Timekeeping Mode.

Newest Record

• Be sure to recharge the battery by exposing the watch to light before starting a dive.

To start dive time measurement

In the Diving Mode, press D.

To stop dive time measurement

While a dive time measurement operation is in progress, hold down D for about one second.

• Pressing D again without resetting the dive time measurement (see below) will cause timing to resume from where it was stopped.

0:00'00'' AReset

Dive interval time

Interval 1

Log record number

Interval measurement is possible up to 47:59'59''

0:20'16'' 0:00'00''

A Reset

▲

Interval 2

Log record number

minutes, seconds)

Graphic Area

• The Dive Graph indicates the current dive time in minutes. While a dive time measurement operation is in progress, the current minute of the dive flashes in the graph.

• The Dive Graph time does not include interval time.

Current timeDive time (hours,

minutes, seconds)

Current timeDive time (hours,

time

Dive timeDive start

Dive interval time

time

Dive timeDive start

Dive start date (month, day)

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