Operation Guide 2836
Important!? The above exposure time values are all for reference only. Actual required exposure
? Storing the watch for long periods in an area where there is no light or wearing it intimes depend on lighting conditions.
such a way that it is blocked from exposure to light can cause rechargeable battery
power to run down. Be sure that the watch is normally exposed to bright light
whenever possible.Reference
? This watch employs a solar cell that converts light into electricity, which charges a
This section contains more detailed and technical information about watch operation.
built-in rechargeable battery. Normally, the rechargeable battery should not need
It also contains important precautions and notes about the various features and
replacement, but after very long use over a number of years, the rechargeablefunctions of this watch.
battery may lose its ability to achieve a full charge. Should you notice problems with
getting the rechargeable battery to a full charge, contact your dealer or CASIO
Power Saving Function
distributor about having the rechargeable battery replaced.
? The rechargeable battery should be replaced with a CASIO-specified CTL1616When turned on, the Power Saving function automatically
battery only. Other rechargeable batteries can cause damage to the watch.puts the watch into a sleep state whenever it is left in an
? All data stored in memory is deleted, and the current time and all other settingsarea where it is dark for 30 to 35 minutes. The sleep state
return to their initial factory defaults whenever battery power drops to Level 4 andis indicated by a blank screen with SLEEP flashing on it.
when you have the battery replaced.In the sleep state, all functions are enabled, except for the
? Turn on the watchOs Power Saving function and keep it in an area normally exposeddisplay.
to bright light when storing it for long periods. This helps to keep the rechargeable? Wearing watch inside the sleeve of clothing can cause it
battery from going dead.to enter the sleep state.
To recover from the sleep state
Battery Power Indicator and Recover Indicator (RECOV)
Perform any one of the following operations.
The battery power indicator on the display shows you the current status of the? Move the watch to a well-lit area. It can take up to five seconds for the display to turn
rechargeable batteryOs power.
on.
LevelBattery PowerFunction Status? Press any button.
? Angle the watch towards your face for reading.
Indicator
1All functions enabled.To turn Power Saving on and off
1.In the Timekeeping Mode, hold down A until the
2All functions enabled.seconds start to flash, which indicates the setting
3|||||||||Beeper tone, backlight,||||||screen.|
Battery power indicator||||||||display, and buttons are||2.Press C seven times until the Power Saving on/off||||
screen appears.
(Charge Soon Alert)disabled.||||
3.Press D to toggle Power Saving on (ON) and off
4All functions, including(OFF).
timekeeping, are disabled.4.Press A twice to exit the setting screen.
? The Power Saving on indicator (SAVE) is on the display
? The flashing indicator at Level 3 tells you that battery power is very low, andin all modes while the Power Saving is turned on.
that exposure to bright light for charging is required as soon as possible.
? At Level 4, all functions are disabled and settings return to their initial factoryMoon Phase Indicator
defaults. Functions are enabled once again after the rechargeable battery isThe Moon phase indicator of this watch indicates the current phase of the Moon as
charged, but you need to set the current time, date, and all other settings after theshown below.
battery is recharged to Level 2 from Level 4. Though the time appears on the display(part you cannot see)Moon phase (part you can see)
after the battery is charged to Level 3, you will not be able to change the time setting
Moon Phase
until the battery reaches Level 2.
Indicator
? Leaving the watch in direct sunlight or some other very strong light source can
cause the battery power indicator to temporarily show a reading that is higher thanMoon Age0, 1, 29 2 - 56 - 9 10 - 13 14 - 16 17 - 20 21 - 24 25 - 28
the actual battery level. The correct battery power indicator should appear after a
Moon PhaseNewFirstFullLast
few minutes.
? If you use the backlight or any of the alarm functions a number of times during aMoonQuarterMoonQuarter
(Waxing)(Waning)
short period, RECOV appears on the display and the following operations become
disabled until battery power recovers.
Backlight? The Moon phase indicator shows the Moon as viewed at noon from a position in the
Northern Hemisphere looking south. Note that at times the image shown by the
Beeper tone
Moon phase indicator may differ from that of the actual Moon in your area.
After some time, battery power will recover and RECOV will disappear, indicating
that the above functions are enabled again.? The left-right orientation of the Moon phase is reversed when viewing from the
Southern Hemisphere or from a point near the equator.
Charging PrecautionsMoon Phases and Moon Age
Certain charging conditions can cause the watch to become very hot. Avoid leavingThe Moon goes through a regular 29.53-day cycle during which it appears to wax and
the watch in the areas described below whenever charging its rechargeable battery.wane due to how the Sun illuminates the Moon and the relative positioning of the
Also note that allowing the watch to become very hot can cause its liquid crystalEarth, Moon, and Sun. The greater the angular distance between the Moon and the
display to black out. The appearance of the LCD should become normal again whenSun, the more we see illuminated.
the watch returns to a lower temperature.*The angle to the Moon in relation to the direction at which the Sun is visible from the
*
Warning!Earth.
Leaving the watch in bright light to charge its rechargeable battery can cause itThis watch perform a rough calculation of the current Moon age starting from day 0 of
to become quite hot. Take care when handling the watch to avoid burn injury.the moon age cycle. The actual Moon age average cycle is 29.53 days, but this can
The watch can become particularly hot when exposed to the followingvary anywhere from �1 day to +1 day for specific months. Since this performs
conditions for long periods.calculations using integer values only (no fractions), the margin for error of the
? On the dashboard of a car parked in direct sunlightdisplayed Moon age is ?2 days.
? Too close to an incandescent lamp
? Under direct sunlightTide Graph
The black bar on the watchOs tide graph indicates the current tide.
Charging Guide
After a full charge, timekeeping remains enabled for up to about 11 months.
? The following table shows the amount of time the watch needs to be exposed to light
each day in order to generate enough power for normal daily operations.
HighLow
Exposure Level (Brightness)Approximate Exposure Timetidetide
Outdoor Sunlight (50,000 lux)5 minutes
Tidal Movements
Sunlight Through a Window (10,000 lux)24 minutesTides are the periodic rise and fall of the water of oceans, seas, bays, and other
Daylight Through a Window on a Cloudy Day48 minutesbodies of water caused mainly by the gravitational interactions between the Earth,
(5,000 lux)Moon and Sun. Tides rise and fall about every six hours. The tide graph of this watch
indicates tidal movement based on the MoonOs transit over a meridian and the lunitidal
Indoor Fluorescent Lighting (500 lux)8 hoursinterval. The lunitidal interval differs according to your current location, so you must
? Since these are the specs, we can include all the technical details.specify a lunitidal interval in order to obtain the correct tide graph readings.
? Watch is not exposed to lightLunitidal Interval
? Internal timekeeping
? Display on 18 hours per day, sleep state 6 hours per dayTheoretically, high tide is at the MoonOs transit over the meridian and low tide is about
six hours later. Actual high tide occurs somewhat later, due to factors such as
? 1 backlight operation (1.5 seconds) per dayviscosity, friction, and underwater topography. Both the time differential between the
? 10 seconds of alarm operation per day
? 1 countdown timer operation per dayMoonOs transit over the meridian until high tide and the time differential between the
MoonOs transit over the meridian until low tide are known as the Olunitidal interval.�
? Stable operation is promoted by frequent charging.When setting the lunitidal interval for this watch, use the time differential between the
Recovery TimesMoonOs transit over the meridian until high tide.
The table below shows the amount exposure that is required to take the battery from
one level to the next.Auto Return Feature
If you leave a screen with flashing digits on the display for two or three minutes without
Exposure LevelApproximate Exposure Time
(Brightness)performing any operation, the watch automatically saves any settings you have made
Level 4Level 32Level 22Level 12up to that point and exits the setting screen.
Scrolling
Outdoor Sunlight (50,000 lux)2 hours 29 hours 8 hoursThe B and D buttons are used in various modes and setting screens to scroll
Sunlight Through a Windowthrough data on the display. In most cases, holding down these buttons during a scroll
7 hours144 hours40 hours
(10,000 lux)operation scrolls through the data at high speed.
Daylight Through a Window
12 hours293 hours81 hours
on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting140 hours� � �
(500 lux)
4 |
ACEC
