MO0803-EA
Operation Guide 3151
Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to read this manual carefully.
Warning!
•The measurement functions built into this watch are not intended for use in taking measurements that require professional or industrial precision. Values produced by this watch should be considered as reasonably accurate representations only.
•The longitude, lunitidal interval, 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 an 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.
•CASIO COMPUTER CO., LTD. assumes no responsibility for any loss, or any claims by third parties that may arise through the use of this watch.
•Press Cto change from mode to mode.
•In any mode (except when a setting screen is on the display), press Bto illuminate the display.
Timekeeping Mode
Press C.
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Moon phase indicator
Day of week |
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Tide graph |
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PM indicator Month – Day
Hour : Minutes Seconds
Use the Timekeeping Mode to set and view the current time and date.
•The tide graph shows tidal movements for the current date in accordance with the current time as kept in the Timekeeping Mode.
•The Moon phase indicator shows the current Moon phase in accordance with the current date as kept in the Timekeeping Mode.
Important!
•Be sure to configure the current time and date, and your Home Site data (data for the site where you use the watch) correctly before using the functions of this watch. See “Home Site Data” for more information.
Setting the Time and Date
This watch is preset with UTC differential values that represent each time zone around the globe. Before setting the time, be sure to set the UTC differential for your Home Site first, which is the location where you normally will be using the watch.
•Note that World Time Mode times are all displayed based on the time and date settings you configure in the Timekeeping Mode.
To set the time and date |
1. In the Timekeeping Mode, hold down Auntil the |
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seconds start to flash, which indicates the setting |
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your Home Site before configuring any other |
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Timekeeping Mode settings. |
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• See the “UTC Differential/City Code List” for information |
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2. Press C to move the flashing in the sequence shown below to select other |
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Seconds |
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DST |
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UTC |
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Hour |
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Minutes |
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Differential |
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Flash Alert |
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Day |
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Month |
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Year |
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3.When the setting you want to change is flashing, use D and Bto change it as described below.
Screen |
To do this: |
Do this: |
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Reset the seconds to 00 |
Press D. |
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Toggle between Daylight Saving |
Press D. |
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Time (ON) and Standard Time |
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(OFF) |
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Specify the UTC differential |
Use D(+) and B(–). |
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Change the hour or minutes |
Use D(+) and B(–). |
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Change the year, month or day |
Use D(+) and B(–). |
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•See “Daylight Saving Time (DST) Setting” below for details about the DST setting.
•The UTC differential setting range is –12.0 to +14.0, in 0.5-hour units.
•When DST is turned on, the UTC differential setting range is –11.0 to +15.0, in 0.5-hour units.
•For information about Flash Alert, see “Flash Alert”.
4.Press A twice to exit the setting screen.
•The day of the week is displayed automatically in accordance with the date (year, month, and day) settings.
About This Manual
•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.
Tide/Moon Data Mode |
World Time Mode |
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Alarm Mode |
Countdown Timer Mode |
Stopwatch Mode |
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To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press Dto toggle between 12-hour timekeeping and 24hour timekeeping.
•With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for times in the range of noon to 11:59 p.m. and no indicator appears to the left of the hour digits for times in the range of midnight to 11:59 a.m.
•With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without any indicator.
•The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is applied in all other modes.
Daylight Saving Time (DST) Setting
Daylight Saving Time (summer time) advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time.
To toggle the Timekeeping Mode time between DST and Standard Time
1.In the Timekeeping Mode, hold down Auntil the
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On/Off status |
seconds start to flash, which indicates the setting |
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screen. |
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2. Press C once and the DST setting screen appears. |
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3. Press D to toggle between Daylight Saving Time (ON |
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displayed) and Standard Time (OFF displayed). |
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4. Press A twice to exit the setting screen. |
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• The DST indicator appears on the Timekeeping, and |
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Tide/Moon Data screens to indicate that Daylight Saving |
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DST indicator |
Time is turned on. In the case of the Tide/Moon Data |
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Mode, the DST indicator appears on the Tide Data |
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screen only. |
Home Site Data
Moon phase, tide graph data, and Tide/Moon Data Mode data will not be displayed properly unless Home Site data (UTC differential, longitude and lunitidal interval) is configured correctly.
•The UTC differential indicates the time differential with Greenwich, England.
•The letters UTC is the abbreviation for Coordinated Universal Time, which is the world-wide scientific standard of timekeeping. It is based upon carefully maintained atomic (cesium) clocks that keep time accurately to within microseconds. Leap seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s rotation.
•The lunitidal interval is the time elapsing between the Moon’s transit over a meridian and the next high tide at that meridian. See “Lunitidal Interval” for more information.
•This watch displays lunitidal intervals in terms of hours and minutes.
•The “Site/Lunitidal Interval Data List” provides UTC differential and longitude information around the world.
•The following is the initial factory default Home Site data (Tokyo, Japan) when you first purchase the watch and whenever you have the battery replaced. Change these settings to match the area where you normally use the watch.
UTC differential (+9.0); Longitude (East 140 degrees); Lunitidal interval (5 hours, 20 minutes)
To configure Home Site data
1. In the Timekeeping Mode, hold down Auntil the seconds start to flash, which indicates the setting screen.
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2. Press C twice to display the UTC differential setting |
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screen, and confirm that the setting is correct. |
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If the UTC differential setting is not correct, use D (+) |
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and B(–) to change it. |
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3. Press Ato display the longitude value setting screen. |
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4. Press C to move the flashing in the sequence shown |
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Longitude value |
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below to select other settings. |
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Longitude |
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Longitude |
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Lunitidal Interval |
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Lunitidal Interval |
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Value |
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(East/West) |
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Hours |
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Minutes |
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1
Operation Guide 3151
5.While the setting you want to change is flashing, use Dand Bto change it as described below.
Setting |
Screen |
Button Operations |
Longitude Value |
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Use D (+) and B(–) to change the setting. |
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• You can specify a value from 0° to 180°, in 1- |
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degree units. |
Longitude |
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Use D to switch between east longitude ( ) |
(East/West) |
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and west longitude ( ). |
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Lunitidal Interval |
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Use D (+) and B(–) to change the setting. |
Hours, Minutes |
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6. Press A to exit the setting screen.
Moon phase indicator Tide graph
Month – Day
Time
Tide/Moon data lets you view the Moon age and the Moon phase for a particular date, and tidal movements for a particular date and time for your Home Site.
•When you enter the Tide/Moon Data Mode, the data for 6:00 a.m. on the current date appears first.
•If you suspect that the Tide/Moon data is not correct for some reason, check the Timekeeping Mode data (current time, date, and Home Site settings), and make changes as required.
•See “Moon Phase Indicator” for information about the Moon phase indicator and “Tide Graph” for information about the tide graph.
•All of the operations in this section are performed in the Tide/Moon Data Mode, which you enter by pressing C.
Tide/Moon Data Screens
In the Tide/Moon Data Mode, press Ato toggle between the Tide Data screen and the Moon Data screen.
Tide Data Screen |
Moon Data Screen |
Month – Day |
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Tide graph |
Moon phase indicator |
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Press A. |
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Time |
Moon age |
•While the Tide Data screen is displayed, press Dto advance to the next hour.
•While the Moon Data screen is displayed, press Dto advance to the next day.
•You also can specify a particular date (year, month, day) to view its tide data and Moon data. See “To specify a date” for more information.
•When you enter the Tide/Moon Data Mode, the screen (tide data or Moon data) that was displayed the last time you exited the mode appears first.
To specify a date |
1. In the Tide/Moon Data Mode, hold down Auntil the |
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Year |
Month – Day |
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year setting starts to flash, which indicates the setting |
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screen. |
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2. Press C to move the flashing in the sequence shown |
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below to select the other settings. |
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Year |
Month |
Day |
3.While a setting is flashing, use D(+) or B (–) to change it.
• You can specify a date in the range of January 1, 2000 to December 31, 2099.
4.Press A to exit the setting screen.
5.Use Ato display either the Tide Data screen or the Moon Data screen.
City code
Current time in selected city
World Time shows the current time in 48 cities (29 time zones) around the world.
•The times kept in the World Time Mode are synchronized with the time being kept in the Timekeeping Mode. If you feel that there is an error in any World Time Mode time, check the UTC differential of your Home Site Data (Home City) and the current setting of the Timekeeping Mode time.
•Select a city code in the World Time Mode to display the current time in any particular time zone around the globe. See the “UTC Differential/City Code List” for information about the UTC differential settings that are supported.
•All of the operations in this section are performed in the World Time Mode, which you enter by pressing C.
To view the time in another city
While in the World Time Mode, press Dto scroll eastwardly through the city codes (time zones).
To toggle a city code time between Standard Time and Daylight Saving Time
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1. In the World Time Mode, use Dto display the city code |
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(time zone) whose Standard Time/Daylight Saving Time |
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setting you want to change. |
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2. Hold down Ato toggle between Daylight Saving Time |
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(DST indicator displayed) and Standard Time (DST |
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indicator not displayed). |
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• The DST indicator is shown on the World Time Mode |
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DST indicator |
screen while Daylight Saving Time is turned on. |
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• Note that changing the Daylight Saving Time for any city |
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code causes the setting to be applied to all city codes. |
1/100 second
Hours Seconds
Minutes
The stopwatch lets you measure elapsed time, split times, and two finishes. It also includes Auto-Start.
•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.
•The stopwatch measurement operation continues even if you exit the Stopwatch Mode.
•Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement.
•All of the operations in this section are performed in the Stopwatch Mode, which you enter by pressing C.
To measure times with the stopwatch |
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Elapsed Time |
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D |
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A |
Start |
Stop |
Re-start |
Stop |
Clear |
Split Time |
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D |
A |
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D |
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Start |
Split |
Split release |
Stop |
Clear |
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(SPL displayed) |
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Two Finishes |
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D |
A |
D |
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Start |
Split |
Stop |
Split release |
Clear |
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First runner |
Second runner |
Display time of |
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finishes. |
finishes. |
second runner. |
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Display time of |
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first runner. |
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About Auto-Start
With Auto-Start, the watch performs a 5-second countdown, and stopwatch operation starts automatically when the countdown reaches zero.
During the final three seconds of the countdown, a beeper sounds with each second.
To use Auto-Start
1. While the stopwatch screen is showing all zeros in the Stopwatch Mode, press A.
• This displays a 5-second countdown screen.
• To return to the all zeros screen, press Aagain.
2. Press D to start the countdown.
• When the countdown reaches zero, a tone sounds and a stopwatch timing operation starts automatically.
•Pressing Dwhile the Auto-Start countdown is in progress will start the stopwatch immediately.
Hours |
Seconds |
Minutes
Auto-repeat
You can set the countdown timer within a range of one minute to 24 hours. An alarm sounds when the countdown reaches zero. The countdown timer also has an auto-repeat feature and a progress beeper that signals the progress of the countdown.
•All of the operations in this section are performed in the Countdown Timer Mode, which you enter by pressing C.
Configuring the Countdown Timer
The following are the settings you should configure before actually using the countdown timer.
Countdown start time; Auto-repeat on/off; Progress beeper on/off
•See “To configure the countdown timer” for information about setting up the timer.
When auto-repeat is turned on, the countdown restarts automatically from the countdown start time when it reaches zero. If left running, the countdown is repeated a total of eight times, after which it stops automatically.
When auto-repeat is turned off, the countdown stops when it reaches zero and the display shows the original countdown start time.
•Pressing Dwhile an auto-repeat countdown is in progress pauses the current countdown. You can resume the auto-repeat countdown by pressing D, or you can press A to reset to the countdown time starting value.
Countdown Timer Beeper Operations
The watch beeps at various times during a countdown so you can keep informed about the countdown status without looking at the display. The following describes the types of beeper operations the watch performs during a countdown.
Countdown End Beeper
The countdown end beeper lets you know when the countdown reaches zero.
•When the progress beeper is turned off, the countdown end beeper sounds for about 10 seconds, or until you press any button to stop it.
•When the progress beeper is turned on, the countdown end beeper sounds for about one second.
Progress Beeper
When the progress beeper is turned on, the watch uses beeps to signal countdown progress as described below.
•Starting from five minutes before the end of the countdown, the watch emits four short beeps at the top of each countdown minute.
•30 seconds before the end of the countdown, the watch emits four short beeps.
•The watch emits a short beep for each of the last 10 seconds of the countdown.
•If the countdown start time is six minutes or greater, the watch emits a short beep for each second of the final 10 seconds before the five-minute point is reached. Four short beeps are emitted to signal when the five-minute point is reached.
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