Casio MO0712-EC User Manual

MO0712-EC

Operation Guide 4722

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.

Starting second hand movement and digital display

This watch does not have a Time Zone that corresponds to the Greenwich Mean Time differential of –3.5 hours. Because of this, the radio-controlled atomic timekeeping function will not display the correct time for Newfoundland, Canada.

Your watch switches automatically between Standard Time and Daylight Saving Time (summer time). Note, however, that switching cannot be performed correctly if the watch is not able to receive the time calibration signal. If you notice that the current time is not displayed properly, use the procedure under “To perform manual receive” or “To set the time and date manually” to correct it.

To conserve battery power, the watch is shipped from the factory with its functions disabled. Pressing any one of the

watch’s three buttons will activate its functions, which will cause the second hand to start moving and the digital display to activate.

About This Manual

Stopwatch 1/20 second hand

Hour hand

Stopwatch minute hand

Minute hand

Date

24-Hour hand

Second hand(Timekeeping/ Stopwatch)

• 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.

General Guide

• Press C to change from mode to mode.

•

About 1.5 seconds after you enter the Dual Time Mode, Alarm Mode, or Hand Setting Mode the hands will move the position that indicates the current setting of the mode. You cannot change to another mode while the hands are moving. To change to another mode, either press

before the hands start to move, or wait until the hands stop before pressing

• In Timekeeping mode (except when a setting screen is on the display), press B to

illuminate the face of the watch.

Timekeeping Mode

Press C.

▲

Radio-controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly. The time calibration signal includes both Standard Time and Daylight Saving Time (summer time) data.

• This watch is designed to pick up the time calibration signal transmitted in the United States (Fort Collins, Colorado) and the time calibration signals transmitted in Japan.

• The U.S. time calibration signal can be picked up by the watch while in North America*. * The term “Nor th America” in this manual refers to the area that consists of

Canada, the continental United States, and Mexico.

Current Time Setting

This watch adjusts its time setting automatically in accordance with a time calibration signal. You can also 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 Time Zone, which is the time zone where you will normally use the watch. For more information, see “To specify your Home Time Zone” below.

• When using the watch outside the range of the time signal transmitter, you have to adjust the current time setting manually as required. See “Timekeeping” for more information about manual time settings.

To specify your Home Time Zone

DST indicator

GMT differential value

Minus sign

2. Use B (+) to select the time zone you want to use as your Home Time Zone.

–5.0 (DST –4.0): New York, Miami, Toronto, Montreal, Detroit, Boston,

Panama City, Havana, Lima, Bogota

–6.0 (DST –5.0): Chicago, Mexico City, Winnipeg, Houston, Dallas/Fort Worth,

New Orleans

–7.0 (DST –6.0): Denver, Edmonton, El Paso –8.0 (DST –7.0): Los Angeles, Vancouver, San Francisco, Las Vegas,

Seattle/Tacoma, Dawson City

–9.0 (DST –8.0): Anchorage, Nome –10.0 (DST –9.0): Honolulu, Papeete

+8.0 (DST +9.0): Hong Kong, Singapore, Kuala Lumpur, Beijing, Taipei, Manila,

Perth, Ulaanbaatar

+9.0 (DST +10.0): Tokyo , Seoul, Pyongyang

3. Press A to exit the setting screen.

• The second hand will advance at high speed to the correct position and resume normal movement from there.

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

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

differential value starts to flash, which indicates the setting screen.

• The second hand will move at high speed to the 12 o’clock position, where it will stop.

• The GMT differential value indicates the time difference in hours between Greenwich Mean Time

and the currently selected time zone.

• The DST indicator indicates that Daylight Saving Time (summer time) is turned on for the currently selected time zone.

Stopwatch Mode

▲

Dual Time Mode

▲

Hand Setting Mode Alarm Mode

▲

• Selecting –5.0, –6.0, –7.0, –8.0, –9.0, –10.0, +8.0, or +9.0 ( –4.0, –5.0, –6.0, –7.0, –8.0, –9.0, +9.0, or +10.0 while DST is turned on) as your Home Time Zone automatically turns on auto receive. When auto receive is turned on and you are within the reception range, the watch will automatically receive the time calibration signal from the applicable transmitter (in the middle of the night) and update its settings accordingly. For information about the relationship between time zones (GMT differential values) and transmitters, see “Home Time Zones and Transmitters”.

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

• If you are in an area that does not use Daylight Saving Time (summer time), turn off the DST setting.

• Even if the time calibration signal is received correctly, there are some times when the analog hands may not indicate the correct time. If this happens, use the procedures under “Adjusting the Home Positions” to check the home positions of the hands, and make adjustments as required.

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. When any auto receive is successful, the remaining auto receive operations are not performed. 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”.

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 facing towards a window. 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.

Inside or among buildings

Inside a vehicle

Near household appliances, office equipment, or a mobile phone

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

Near hightension power lines

Among or behind mountains

Operation Guide 4722

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

• Time calibration signal reception takes from four to seven minutes, but in some

cases it can take as long as 14 minutes. T ake 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 Time Zone setting as shown below. If you use the watch in Japan (which has two different transmitter locations), it will try to receive the time calibration signal from one of the transmitters in your current location. If it cannot receive the signal, it will then try to receive the time calibration signal from the other transmitter.

Home Time Zones and Transmitters

Home Time Zone

–5.0 (DST –4.0) –6.0 (DST –5.0) –7.0 (DST –6.0) –8.0 (DST –7.0) –9.0 (DST –8.0) –10.0 (DST –9.0)

+8.0 (DST +9.0) +9.0 (DST +10.0)

Reception Ranges

2,000 miles (3,000 kilometers)

600 miles (1,000 kilometers)

Fort Collins

• 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.

Fort Collins (United States) transmitter: 600 miles (1,000 kilometers) Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 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.

About Auto Receive

The watch receives the time calibration signal automatically up to six times a day. 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 Time Zone, and whether standard time or Daylight Saving Time is selected for your Time Zone.

Your Time Zone

–5.0 (DST –4.0) –6.0 (DST –5.0) –7.0 (DST –6.0) –8.0 (DST –7.0) –9.0 (DST –8.0) –10.0 (DST –9.0)

+8.0 (DST +9.0) +9.0 (DST +10.0)

Note

• The auto receive operation is performed only if the watch is in the Timekeeping Mode or Dual Time Mode when a calibration time is reached. It is not performed if a calibration time is reached while an alarm is sounding or 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 four to 14 minutes everyday when the time in the Timekeeping Mode reaches each of the calibration times. A void performing any button operation within 14 minutes before or after any one of 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.

Standard Time and Daylight Saving Time

Standard Time

To perform manual receive

R (READY)

W (WORK)

Y (YES)

N (NO)

Transmitter

Fort Collins, Colorado (the United States)

Fukushima (Japan) Fukuoka/Saga (Japan)

500 kilometers

Fukuoka/Saga

1,000 kilometers

Auto Receive Start Times

123456

Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am

1.Place the watch on a stable surface so its 12 o’clock side is facing towards a window.

2.In the Timekeeping Mode, hold down A for about two seconds until the watch beeps.

3.The stopwatch second hand will move to R (READY) to indicate that the watch is setting up for time calibration reception.

• The second hand will move to W (WORK) and stay there

while actual reception is in progress.

• The hour and minute hands continue to keep time

normally.

• Time calibration signal reception takes from four to

seven minutes, but in some cases it can take up to 14 minutes. T ake care that you do not perform any button operations or move the watch during this time.

• If reception is successful, the second hand will move to

Y (YES). One minute later, the hands will move to the correct time.

Frequency

60.0 kHz

40.0 kHz

60.0 kHz

500 kilometers

Fukushima 1,000

kilometers

Note

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

• If reception is not successful, the stopwatch second hand will move to N (NO). One minute later, the stopwatch second hand will resume normal operation, without any adjustment of the hand setting.

• If the stopwatch second hand is pointing to Y (YES) or N (NO), you can return to the Timekeeping Mode by pressing any button.

Viewing the Latest Signal Reception Results

You can use the Receive Result Mode to check if signal reception was performed correctly.

To check the latest signal reception results

Signal Reception Troubleshooting

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

The stopwatch second hand is pointing at N(NO).

Time setting is incorrect following signal reception.

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

• You changed the time setting

•

• Signal reception results are reset

• The Home Time Zone setting is not

1.In the Timekeeping Mode, press A.

• If the watch was able to perform a successful signal receive operation since midnight, the stopwatch second hand will move to Y (YES). If the watch has been unable to receive any signal successfully, the second hand will move to N (NO).

• The watch will return to the Timekeeping Mode after five seconds.

• The current receive result is cleared when the first auto receive operation is performed on the following day. This means Y (YES) indicates successful signal reception since the start of the current day.

• If you adjust the time or date setting manually, the second hand will move to N (NO).

What you should doProblem Probable Cause

manually. You performed some button operation during the auto receive operation.

when the first auto receive operation of the day is performed.

correct for the area where you are using the watch.

• 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.

• Select the correct Home Time Zone.

Stopwatch

Stopwatch 1/20 second hand * This hand rotates and indicates the second count during the first 60 seconds.

Second hand

Stopwatch minute hand

To measure elapsed time

1. Press B to start the stopwatch.

2. Press B to stop the stopwatch.

• You can resume the measurement operation by pressing B again.

• The 1/20 second hand rotates during the first 60 seconds only, and then stops.

3. Check the elapsed time.

• Press A to reset the stopwatch.

Stopwatch 1/100 second

When elapsed timing is stopped (by pressing B), this hand jumps to the 1/20 second indication (which is kept internally).

The stopwatch lets you measure elapsed time,.

• The display range of the stopwatch is 59 minutes, 59.99 seconds.

• Entering the Stopwatch Mode causes the second hand, the stopwatch minute hand and stopwatch 1/20 second hand to move to the 12 o’clock position.

• The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it.

• 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.

Dual Time

The Dual Time Mode lets you view the current time in 29 time zones around the world.

• Time zones are indicated on the digital display by their GMT differential values.

• For full information on time zones, see the “Time Zone Table”.

• The watch will perform a signal receive operation even if it is in the Dual Time Mode when a calibration time is reached. If this happens, the Dual Time Mode time settings will be adjusted in accordance with the current time in the Timekeeping Mode’s Home Time Zone.

• All of the operations in this section are performed in the

GMT differential value(+1.0)

To view the time in another time zone

While in the Dual Time Mode, press B to scroll eastward through time zones.

• When you release B, the hands will move to the current time in that time zone after about one second.

• If the current time shown for a time zone is wrong, check the Timekeeping Mode time setting and your Home Time Zone setting, and make the necessary changes.

Dual Time Mode, which you enter by pressing C.

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