MO0607-EB
Operation Guide 4335 4348
Getting Acquainted
Congratulations upon your selection of this CASIO watch. T o 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 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.
General Guide
• Press C to change from mode to mode.
• In any mode, press L to illuminate the display.
Timekeeping Mode
Press C.
▲
Warning!
Tide/Moon Data Mode
▲
Hand Setting Mode
▲
About This Manual
(Light)
Module 4335
Module 4348
Temperature Data
Recall Mode
▲
World Time Mode
• Depending on the model of your watch, display text
appears either as dark figures on a light background
(Module 4335), or light figures on a dark background
(Module 4348). All sample displays in this manual are
shown using dark figures on a light background.
• Button operations are indicated using the letters shown
in the illustration.
• For the sake of simplicity, the sample displays in this
manual do not show the analog hands of the watch.
• 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
▲
Countdown Timer
▲
Mode
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
This watch features separate digital and analog timekeeping. The procedures for
setting the digital time and analog time are different.
• In the Timekeeping Mode, press A to toggle between the thermometer screen and
the temperature tendency screen.
Thermometer Screen
Moon
phase
indicator
Tide
graph
PM indicator
• 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.
• See “Thermometer” for details about the thermometer screen and temperature
tendency graph.
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 Digital Time and Date
This watch is preset with UTC differential values that represent each time zone around
the globe. Before setting the digital time, be sure to first set the UTC differential for
your Home Site, 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.
Hour : Minutes
To set the digital time and date
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Seconds
Seconds
Temperature
Unit
Thermometer
Day of week –
Day
Seconds
1.In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
• Be sure to configure the correct UTC differential for
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your Home Site before configuring any other
Timekeeping Mode settings.
• See the “UTC Differential/City Code List” for
information about the UTC differential settings that are
supported.
2.Press C to move the flashing in the sequence shown
below to select other settings.
DST
UTC
Differential
Temperature Sensor
Calibration
Press A.
▲
Temperature T endency
Screen
▲
Hour
Minutes
Day
Month
Temperature
Tendency
Graph
12/24-Hour
Format
Year
3. When the setting you want to change is flashing, use D and B to change it as
described below.
Screen: To do this:
Reset the seconds to 00
Toggle between Daylight Saving
Time (ON) and Standard Time (OF)
Specify the UTC differential
Change the hour or minutes
Toggle between 12-hour (12H) and
24-hour (24H) timekeeping
Change the year
Do this:
Press D.
Press D.
Use D (+) and B (–).
Use D (+) and B (–).
Press D.
Use D (+) and B (–).
Change the month or day
• The UTC differential setting range is –12.0 to +14.0, in 0.5-hour units.
• For information about settings other than the time and date, see the following.
Temperature Sensor Calibration: “Thermometer”
Temperature Unit: “Thermometer”
4. Press A twice to exit the setting screen.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
• When DST is turned on, the UTC differential setting range is –11.0 to +15.0, in 0.5-
hour units.
• Any time the seconds setting is changed, the analog hands are adjusted accordingly.
• See “Daylight Saving Time (DST) Setting” below for details about the DST setting.
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 digital time between DST and Standard Time
DST indicator
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On/Off status
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.
1.In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C once and the DST setting screen appears.
3. Press D to toggle between Daylight Saving Time (
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displayed) and Standard Time (OF displayed).
4. Press A twice to exit the setting screen.
• The DST indicator appears on the Timekeeping, Tide/
Moon Data, Alarm, and Hand Setting Mode screens to
indicate that Daylight Saving Time is turned on. In the
case of the Tide/Moon Data Mode, the DST indicator
appears on the Tide Data screen only.
ON
1
Operation Guide 4335 4348
• 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 (T okyo, Japan) when you
first purchase the watch and whenever you have the batteries 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
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Longitude
Longitude
(East/West)
Value
Longitude
Value
5. While the setting you want to change is flashing, use D and B to change it as
described below.
Setting
Longitude Value
Longitude
(East/West)
Lunitidal Interval
Hours, Minutes
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C once to display the UTC differential setting
screen, and confirm that the setting is correct.
• If the UTC differential setting is not correct, use D (+)
and B (–) to change it.
3. Press A to display the longitude value setting screen.
4.Press C to move the flashing in the sequence shown
below to select other settings.
Longitude
(East/West)
Screen
Lunitidal Interval
Hours
Lunitidal Interval
Minutes
Button Operations
Use D (+) and B (–) to change the setting.
• You can specify a value from 0˚ to 180˚, in 1-
degree units.
Use D to switch between east longitude (E)
and west longitude (
).
Use D (+) and B (–) to change the setting.
6. Press A to exit the setting screen.
Setting the Analog Time
Perform the procedure below when the time indicated by the analog hands does not
match the time of the digital display.
To adjust the analog time
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• To lock high speed hands movement, hold down D to start it and then press B
to lock. The hands will continue to advance for one 12-hour cycle or until you
press any button to stop it.
It will also stop automatically after the time advances 12 hours or if an alarm (daily
alarm, Hourly Time Signal, or countdown beeper) starts to sound.
4. Press A to exit the setting screen.
• The minute hand will be adjusted slightly to match the seconds when you exit the
setting screen.
• To return to the Timekeeping Mode, press C.
1.In the Timekeeping Mode, press C seven times to
enter the Hand Setting Mode.
2.Hold down A until the current digital time starts to
flash, which indicates the setting screen.
3. Use D to adjust the analog setting.
• Press D once to advance the hands 20 seconds.
• Hold down D to advance the hands at high speed.
Tide/Moon Data
Tide graph
Month – Day
Moon Phase Indicator
Tide/Moon Data Screens
In the Tide/Moon Data Mode, press A to toggle between the Tide Data screen and
the Moon Data screen.
Tide Data Screen
Tide graph
Time
• When you enter the Tide/Moon 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.
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
Time
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.
Moon Data Screen
Moon phase indicator
Press A.
▲
Month – Day
▲
Moon age
To view the Moon data for a particular date
1. In the Tide/Moon Data Mode, press A to display the Moon Data screen.
2. Use D (+) and B (–) to display the date whose Moon Data you want to view.
• You can select any date from 2000 to 2099.
• You can also specify a date for tide data or Moon data. For details, see “To specify a
date”.
To view tide data for a particular time
1. In the Tide/Moon Data Mode, press A to display the Tide Data screen.
• The initial screen shows the tide graph for 6:00 AM.
2. Use D (+) and B (–) to display the time whose Tide Data you want to view.
To specify a date
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Year
Month – Day
1. In the Tide/Moon Data Mode, hold down A until the
year setting starts to flash, which indicates the setting
screen.
2. Press C to move the flashing in the sequence shown
below to select the other settings.
Month DayYear
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 A to display either the Tide Data screen or the
Moon Data screen.
Thermometer
This watch uses a temperature sensor to measure temperature. A reading is taken
during each even-numbered minute, and the result of the last reading is displayed on
the thermometer screen.
The watch also takes separate readings and stores them in memory for display in the
temperature tendency graph, which can be viewed in the Timekeeping Mode.
Measured temperature values are stored in memory for later recall when you need
them.
Thermometer Screen
Thermometer
• You can select either Celsius (°C) or Fahrenheit (°F) units for the thermometer
screen. See “To specify the temperature display unit” for more information.
• The thermometer screen displays temperature values in 0.1°C units (or 0.2°F units).
• The display range of the thermometer screen is –10.0°C to 60.0°C (or 14.0°F to
140.0°F).
• You can calibrate the temperature sensor if you feel that the displayed temperature
values are not correct. See “Temperature Sensor Calibration” for more information.
Important!
• Temperature measurements are affected by your body temperature (while you are
wearing the watch), direct sunlight, and moisture. T o achieve a more accurate
temperature measurement, remove the watch from your wrist, place it in a well
ventilated location out of direct sunlight, and wipe all moisture from the case. It takes
approximately 20 to 30 minutes for the case of the watch to reach the actual
surrounding temperature.
Temperature T endency Graph
The watch also takes temperature readings at the top and the bottom of each hour
and stores the results in memory for display on the temperature tendency graph.
Depending on the current Timekeeping Mode time, the temperature tendency graph
shows either the top of the hour measurements or the bottom of the hour
measurements for the past 17 hours.
From the top of each hour to the 29th minute, past top of the hour readings are shown
in the graph. From the bottom of each hour to the 59th minute, past bottom of the hour
readings are shown in the graph.
Temperature tendency graph contents are updated every 30 minutes.
▲
Past 17 hours of
measurement values
The horizontal axis of the graph represents time. The rightmost column is the newest
temperature value in memory, while the leftmost column is the temperature value
stored approximately 17 hours ago (1 dot = 1 hour). The vertical axis of the graph
represents the relative change from one hour to the next.
• When the relative change from one hour to the next exceeds +10.0ºC (+18.0ºF), the
dot at the highest point for the applicable hour flashes.
• When the relative change from one hour to the next exceeds –10.0ºC (–18.0ºF),
there is no dot in the applicable hour's column.
• If a measurement error occurs for some reason, only a single the dot in the center
column will be displayed.
Temperature change greater
than +10.0°C (+18.0°F)
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Press A.
▲
Latest measurement value
Temperature change greater
than –10.0°C (–18.0°F)
Temperature
Tendency Screen
▲
+6.0 to +9.9°C (+10.8 to +17.9°F)
+2.0 to +5.9°C (+3.6 to +10.7°F)
–1.9 to +1.9°C (–3.5 to +3.5°F)
–5.9 to –2.0°C (–10.7 to –3.6°F)
–9.9 to –6.0°C (–17.9 to –10.8°F)
Error
Temperature
Tendency
Graph
2