Casio 2941 Operation Manual

MO0501-EA
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 and keep it on hand for later reference
when necessary.
• 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.
General Guide
• Press D to change from mode to mode.
• In any mode, press L to illuminate the display.
Timekeeping
Use the Timekeeping Mode to set and view the current time and date. You can also
use the Timekeeping Mode to select either audible beeper or vibration alert for alarms.
• 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.
• In the Timekeeping Mode, you can press C to change the display format as shown
below.
Moon phase
indicator
PM indicator
Hour : Minutes Seconds
Important!
• Moon phase, tide graph data, and Tide/Moon 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.
To set the time and date
3. When the setting you want to change is flashing, use E and B to change it as
described below.
To change this setting
Seconds
DST
Hour, Minutes, Year,
Month, Day
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 "Daylight Saving Time (DST)" for details about the DST setting.
• For information about specifying how long the display of the watch remains
illuminated, see "To specify the illumination duration".
• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
Daylight Saving Time (DST)
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 digital time between DST and Standard Time
DST indicator
Operation Guide 2941
Warning!
Timekeeping Mode
Press D.
Day of the Week Tide Graph
Day of week
Tide graph
Month – Day
Press C.
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press D to move the flashing in the sequence shown
below to select other settings.
Seconds DST Hour
Day Month
Perform this button operation
Press E to reset to 00.
Press E to toggle between Standard Time (
and Daylight Saving Time ( ON ).
Use E (+) and B (–) to change the setting.
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press D once and the DST setting screen appears.
3. Press E to toggle between Daylight Saving Time (
displayed) and Standard Time ( OFF
4. Press A twice to exit the setting screen.
• The DST indicator appears on the display to indicate
that Daylight Saving Time is turned on.
About This Manual
(Light)
Tide/Moon Data Mode
Stopwatch Mode
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press B to toggle between 12-hour timekeeping and 24-
hour timekeeping.
• With the 12-hour format, the P (PM) indicator appears on the display for times in the
range of noon to 11:59 p.m. and no indicator appears 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 modes.
Home Site Data
Tide graph 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.
• 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 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 and whenever you have the battery replaced. Change these
settings to match the area where you normally use the watch.
GMT differential (+9.0); Longitude (East 140 degrees); Lunitidal interval (5 hours,
20 minutes)
To configure Home Site data
Minutes
Year
GMT differential
OFF )
4. When the setting you want to change is flashing, use E and B to change it as
described below.
Setting
GMT Differential
Longitude
Lunitidal Interval
Hours, Minutes
5. Press A to exit the setting screen.
Vibration Alert
When Vibration Alert is turned on, the watch vibrates instead of sounding a beeper.
This lets you use the watch without disturbing others with beeping sounds.
• Vibration Alert can be used to replace alarm sounds.
• For information about selecting the alert type, see "To switch between vibration alert
and beeper alert" below.
• For information about countdown timer alerts, see "Countdown Timer".
ON
• For information about the daily alarm and hourly time signal alerts, see "Alarms".
displayed).
• Watches with a metal band may produce a noise when a vibration operation is
performed. This is due to vibration of the metal band, and does not indicate
malfunction of the watch.
• 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.
World Time Mode
Alarm Mode
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 D to move the flashing in the sequence shown
below to select other settings.
GMT Lunitidal Interval
Longitude
Differential Hours
Screen Button Operations
Use E (+) and B (–) to change the setting.
• You can specify a value in the range of –11.0
to +14.0, in 0.5-hour units.
Use E (+) 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 E (+) and B (–) to change the setting.
Countdown Timer
Mode
Lunitidal Interval
Minutes
1