Casio MO0404-EC User Manual
MO0404-EC
Operation Guide 2532
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to carefully read this manual and keep it on hand for later reference
when necessary.
Expose the watch to bright light to charge its battery before using it.
You can use this watch even as its battery is being charged by exposure to bright
light.
• Be sure to read “Battery” of this manual for important information you need to
know when exposing the watch to bright light.
If the display of the watch is blank...
General Guide
• Press C to change from mode to mode.
• In any mode, press L to illuminate the display.
If the SLEEP indicator is on the display, it means that the
display is blank because the watch’s Power Saving
function has turned off the display to conserve power.
Power Saving automatically turns off the display and puts
the watch into a sleep state whenever your watch is left for
a certain period where it is dark.
• The initial factory default setting is Power Saving on.
• The watch recovers from the sleep state if you move it to
a well-lit area
the watch towards your face for reading.
It can take up to five seconds for the display to turn on.
*
• See “Power Saving Function” for more information.
Timekeeping Mode
, if you press any button, or if you angle
*
Press C.
• 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.
About This Manual
(Light)
Moon / Tide Data Mode Coutdown Timer Mode
▲
Dual Time Mode
Warning!
• 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.
▲
Stopwatch Mode
Alarm Mode
▲
▲
Timekeeping
Moon phase indicator
PM indicator
Day of week
To set the time and date
3. When the setting you want to change is flashing, use D and B to change it as
described below.
To change this setting
Seconds
Hour, Minutes, Year,
Month, Day
12/24-Hour Format
Power Saving
4. Press A twice to exit the setting screen.
• The first press of A displays the GMT differential setting screen. Pressing A again
exits the setting screen.
• See “Power Saving Function” for details about configuring Power Saving settings.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
• The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
Home Site Data
Moon phase, tide graph data, and Moon/Tide Data Mode data will not be displayed
properly unless Home Site data (GMT differential, longitude, and lunitidal interval) is
configured correctly.
• The GMT differential is the time difference of the time zone where the site is located
from Greenwich Mean Time.
Tide graph
Month – Day
Hour : Minutes Seconds
Year
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!
• Moon phase, tide graph data, and Moon/Tide Data
Mode data will not be displayed properly unless the
Timekeeping Mode current date and time settings and
Home Site data are configured correctly. See “Home
Site Data” for more information.
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C to move the flashing in the sequence shown
below to select other settings.
Seconds
Power Saving
Hour
Perform this button operation
Press D to reset to 00.
Use D (+) and B (–) to change the setting.
Press D to toggle between 12-hour (12H) and
24-hour (24H) timekeeping.
Press D to toggle Power Saving on (ON) and off
(OFF).
Minutes
Day Month
12/24-Hour
Format
Year
▲
• Note that you must add one hour to the GMT differential for your time zone
whenever you change to Daylight Saving Time. Subtract one hour when you change
back to Standard Time.
• 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 Data List” and “Lunitidal Interval List” provide GMT differential, longitude,
and lunitidal interval information around the world.
• The following is the initial factory default Home Site data (Tokyo, Japan) when you
first purchase the watch, whenever battery power drops to Level 5, and whenever
you have the battery replaced. Change these settings to match the area where you
anormally use the watch.
GMT differential (+9.0); Longitude (East 140 degrees); Lunitidal interval (5 hours,
20 minutes)
To configure Home Site data
GMT differential
4. When the setting you want to change is flashing, use D and B to change it as
described below.
Setting
GMT differential
Longitude
Lunitidal Interval
Hours, Minutes
5. Press A to exit the setting screen.
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press A again to display the GMT differential setting
screen.
3. Press C to move the flashing in the sequence shown
below to select other settings.
GMT
differential
Longitude
Screen Button Operations
Use D (+) and B (–) to change the setting.
• You can specify a value in the range of –11.0
to +14.0, in 0.5-hour unit.
Use D (+) and B (–) to change the setting.
• You can specify a value in the range of
179°W to 180°E, in 1-degree units.
Use D (+) and B (–) to change the setting.
▲
Lunitidal Interval
Hours
Lunitidal Interval
Minutes
Moon/Tide Data
Moon phase indicator
Tide gragh
Moon age
Moon/tide data lets you view the Moon age and Moon
phase for a particular date, and tidal movements for a
particular date and time for the Home Site.
• If you suspect that the Moon/tide 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
Moon/Tide Data Mode, which you enter by pressing C.
1
Operation Guide 2532
Moon/Tide Data Screens
Each press of A in the Moon/Tide Data Mode toggles between the Moon Data
screen and the Tide Data screen.
Moon Data Screen
Moon phase indicator
Moon age
Press A.
▲
Year Month – Day
• When you enter the Moon/Tide Data Mode, the data that appears first is the Moon
data (Moon age and Moon phase indicator) for the current date as kept by the
Timekeeping Mode.
To view the Moon data for a particular date
While the Moon Data screen is displayed in the Moon/Tide Data Mode, use D (+) and
B (–) to display the date whose Moon data you want to view.
• You can select any date from 2000 to 2039.
To view tide data for a particular time
1. While the Moon Data screen is displayed in the Moon/Tide Data Mode, use D (+)
and B (–) to display the date whose tide data you want to view.
2. Press A to switch to the Tide Data screen.
• The initial screen shows the tide graph for 6:00 AM.
3. Specify the time for which you want to display tide data.
• Use D (+) and B (–) to change the time in one-hour steps.
Tide Data Screen
Time
▲
Tide gragh
Countdown Timer
Minutes
Seconds
Timekeeping Mode time
Configuring the Countdown Timer
The following are the settings you should configure before actually using the
countdown timer.
Countdown start time and reset time
Timer mode (auto-repeat, elapsed time)
Progress beeper on/off
• See “To configure the countdown timer” for information about setting up the timer.
Reset Time
You can set a “reset time,” which is a kind of alternate countdown start time you can
recall with the press of a button any time a countdown operation is in progress.
Timer Mode
The countdown timer gives you a choice of two modes: auto-repeat and elapsed time.
Auto-repeat
Auto-repeat mode automatically restarts the countdown from the countdown start time
you set whenever zero is reached.
• Auto-repeat mode is best when timing the starts of match races.
• Even if you start a countdown operation from the reset time, the countdown
automatically restarts from the countdown start time whenever it reaches zero.
• Auto repeat timing repeats up to seven times.
Elapsed Time
When the end of the countdown is reached in the elapsed time mode, the timer
automatically switches to an elapsed time measurement operation.
• The elapsed time mode is best when timing the speed of yachts during ocean races.
• The elapsed time operation is performed in one-second increments up to 99 hours,
59 minutes, 59 seconds.
Countdown Timer Beeper Operations
The watch beeps at various times during a countdown to 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 watch beeps each second of the final 10 seconds before a countdown reaches
zero, and at zero. The first five beeps (seconds 10 through 6) are higher pitched than
the final five beeps (seconds 5 through 1). The watch emits a longer beep to signal
when the countdown reaches zero.
• The countdown end beeper always sounds, regardless of the on/off status of the
progress beeper.
Progress Beeper
The progress beeper actually includes two beepers: a reset time beeper and a reset
period progress beeper.
• The reset time beeper and reset period progress beeper sound only while the
progress beeper is turned on.
Reset Time Beeper
The reset time beeper is similar to the countdown end beeper. When the progress
beeper is turned on, the watch beeps each second of the final 10 seconds before the
countdown reaches the reset time.
Reset Period Progress Beeper
The reset period is the portion of the countdown between the reset time and zero.
When the progress beeper is turned on, the watch emits fours short beeps at the top
of each minute during the reset period, and 30 seconds before the end of the
countdown.
The countdown timer can be set within a range of one
minute to 60 minutes. An alarm sounds when the
countdown reaches zero. The countdown timer has two
modes: auto-repeat and elapsed time, and a progress
beeper signals the progress of the countdown. All of this
makes the countdown timer a valuable tool for timing the
start of a yacht race.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C.
Countdown Timer Examples
Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Auto-repeat;
Progress beeper: On
Start Time Reset Time
10'00"
Reset Time Beeper
Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Elapsed time;
Progress beeper: Off
Start Time Reset Time
10'00"
To configure the countdown timer
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Setting
Start Time
Reset Time
Timer Mode
Progress
Beeper
4. Press A to exit the setting screen.
• The reset time setting must be less than the countdown start time setting.
To use the countdown timer
To do this:
Stop the countdown operation
Resume a stopped countdown operation
Display the countdown start time
Stop the countdown operation and display the reset time
Start the countdown from the displayed reset time
• The table below describes button operations you can perform during an elapsed
time measurement operation in the elapsed time mode.
To do this:
Stop the elapsed time operation
Resume a stopped elapsed time operation
Display the countdown start time
Stop the elapsed time operation and display the reset time
Start the countdown from the displayed reset time
1. While the countdown start time is on the display in the
2. Press C to move the flashing in the sequence shown
Screen
Use D (+) and B (–) to change the setting.
• You can set a start time in the range of 1 to 60 minutes
Use D (+) and B (–) to change the setting.
• You can set a reset time in the range of 1 to 5 minutes
Press D to toggle between the auto-repeat mode (ON)
and the elapsed time mode (OFF).
• An auto-repeat indicator (
Press D to toggle progress beeper on (ON) and off (OFF).
• A progress beeper indicator (
In the Countdown Timer Mode, press D to start the
countdown timer.
• The countdown timer measurement operation continues
• The table below describes button operations you can
Reset Period
Reset Period Progress Beeper
Countdown
End Beeper
Countdown Timer Mode, hold down A until the
countdown start time setting starts to flash, which
indicates the setting screen.
• If the countdown start time is not displayed, use the
procedure under “To use the countdown timer” to
display it.
below to select other settings.
Start
Time
in 1-minute increments.
in 1-minute increments.
repeat mode is selected.
setting it turned on.
even if you exit the Countdown Timer Mode.
perform to control countdown operations.
Reset
Time
Timer
Mode
Button Operations
) appears when the auto-
Do this:
Press D.
Press D again.
While the countdown is
stopped, press B.
Press B.
Press D.
Do this:
Press D.
Press D again.
While the elapsed time is
stopped, press B.
Press B.
Press D.
Countdown
End Beeper
0'00"1'00" 0'30"2'00"3'00"4'00"5'00"
Elapsed time
measurement
0'00"5'00"
Progress
Beeper
) appears when this
Alarms
Alarm number
Alarm time
(Hour : Minutes)
Timekeeping Mode time
• There are five alarm screens numbered 1 through 5. The hourly time signal screen
is indicated by :00. The brightness alarm screen shows ON or OFF.
• When you enter the Alarm Mode, the screen you were viewing when you last exited
the mode appears first.
• All of the operations in this section are performed in the Alarm Mode, which you
enter by pressing C.
You can set five independent Daily Alarms. When an
alarm is turned on, the alarm tone sounds when the alarm
time is reached. One of the alarms can be configured as a
snooze alarm or a one-time alarm, while the other four are
one-time alarms.
You can also turn on an Hourly Time Signal that causes
the watch to beep twice every hour on the hour, and a
brightness alarm that beeps whenever the watch is moved
from an area where it is dark to an area where it is light.
2
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