Operation Guide 2910
Warning!Charging Guide
" Always make sure you are in a safe place whenever you are reading the watchAfter a full charge, timekeeping remains enabled for up to about 11 months.
using the auto light switch. Be especially careful when running or engaged in" The following table shows the amount of time the watch needs to be exposed to light
any other activity that can result in accident or injury. Also take care thateach day in order to generate enough power for normal daily operations.
sudden illumination by the auto light switch does not startle or distract others
around you.Exposure Level (Brightness)Approximate Exposure Time
" When you are wearing the watch, make sure that its auto light switch is turned
off before riding on a bicycle, or operating a motorcycle or any other motorOutdoor Sunlight (50,000 lux)4 minutes
vehicle. Sudden and unintended operation of the auto light switch can create a
Sunlight Through a Window (10,000 lux)19 minutes
distraction, which can result in a traffic accident and serious personal injury.
Daylight Through a Window on a Cloudy Day29 minutes
To turn the auto light switch on and off(5,000 lux)
In any mode, hold down L for about two seconds to toggle the auto light switch on
(auto light switch indicator displayed) and off (auto light switch indicator not displayed).Indoor Fluorescent Lighting (500 lux)5 hours
" The auto light switch indicator remains in all modes while the auto light switch is
" Since these are the specs, we can include all the technical details.
turned on." Display on 18 hours per day, sleep state 6 hours per day
" 1 illumination operation (1.5 seconds) per day
Power Supply" 10 seconds of alarm operation per day
" Stable operation is promoted by frequent charging.
This watch is equipped with a solar cell and a special rechargeable battery (secondary
battery) that is charged by the electrical power produced by the solar cell. TheRecovery Times
illustration shown below shows how you should position the watch for charging.The table below shows the amount exposure that is required to take the battery from
one level to the next.
Example: Orient the watch so its faceSolar cellExposure LevelApproximate Exposure Time
is pointing at a light source.(Brightness)
Level 4Level 3Level 2Level 1
" The illustration shows how to position
a watch with a resin band.
" Note that charging efficiency dropsOutdoor Sunlight (50,000 lux)
when any part of the solar cell is2 hours22 hours6 hours
blocked by clothing, etc.
" You should try to keep the watchSunlight Through a Window5 hours109 hours30 hours
outside of your sleeve as much as(10,000 lux)
possible. Charging is significantlyDaylight Through a Window
reduced if the face is only partially9 hours220 hours61 hourson a Cloudy Day (5,000 lux)
covered.
Indoor Fluorescent Lighting
101 hours� � �
(500 lux)
Important!
" Storing the watch for long periods in an area where there is no light or wearing it in" The above exposure time values are all for reference only. Actual required exposure
such a way that it is blocked from exposure to light can cause rechargeable batterytimes depend on lighting conditions.
power to run down. Make sure that the watch is normally exposed to bright light
whenever possible.Reference
" This watch uses a special rechargeable battery to store power produced by the solar
cell, so regular battery replacement is not required. However, after very long use, theThis section contains more detailed and technical information about watch operation.
rechargeable battery may lose its ability to achieve a full charge. If you experienceIt also contains important precautions and notes about the various features and
problems getting the special rechargeable battery to fully charge, contact yourfunctions of this watch.
dealer or CASIO distributor about having it replaced.
" Never try to remove or replace the watchOs special battery yourself. Use of the wrongPower Saving Function
type of battery can damage the watch.When turned on, the Power Saving function automatically
" The current time and all other settings return to their initial factory defaults wheneverenters a sleep state whenever the watch is left in an area
battery power drops to Level 4 and when you have the battery replaced.where it is dark for a certain period. The table below
" Turn on the watchOs Power Saving function and keep it in an area normally exposedshows how watch functions are affected by the Power
to bright light when storing it for long periods. This helps to keep the rechargeableSaving function.
battery from going dead.
Battery Power Indicator and Recover Indicator
The battery power indicator shows you the current power level of the rechargeable
battery.
Battery power indicatorLevel Battery Power IndicatorFunction StatusPower saving
indicator
1All functions enabled.Elapsed TimeDisplayOperation
in Dark
2All functions enabled.60 to 70 minutesBlank, with Sleep indicatorAll functions enabled, except
(P.SAVE) flashingfor the display
6 or 7 daysBlank, with Sleep indicatorBeeper tone, backlight, and
3|||||||Alarm, hourly time signal,|(P.SAVE) not flashingdisplay are disabled.
|||
|||||illumination, auto light switch," Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
Recover indicatorand display disabled." The watch will not enter the sleep state between 6:00 AM and 10:59 PM. If the
(Charge Soon Alert)
watch is already in the sleep state when 6:00 AM arrives, however, it will remain in
All functions, includingthe sleep state.
4timekeeping, disabled and
initialized.To recover from the sleep state
Perform any one of the following operations.
" The flashing charge indicator ( CHG ) at Level 3 tells you that battery power is very" Move the watch to a well-lit area.
low, and that exposure to bright light for charging is required as soon as possible." Press any button.
" At Level 4, all functions are disabled and settings return to their initial factory" Angle the watch towards your face for reading.
defaults. Functions are enabled once again after the rechargeable battery is
charged, but you need to set the time and date, after the battery reaches Level 3To turn Power Saving on and off
(indicated by the flashing charge indicator) from Level 4. You will not be able to1.In the Timekeeping Mode, hold down A until the city
configure any of the other settings until the battery reaches Level 2 (no chargecode starts to flash, which indicates the setting screen.
indicator) after dropping to Level 4.2.Press C nine times until the Power Saving on/off
" Leaving the watch in direct sunlight or some other very strong light source can cause thescreen appears.
battery power indicator to momentarily show a reading that is higher than the actual3.Press D to toggle Power Saving on (ON) and off (OF).
battery level. The correct battery power indicator should appear after a few minutes.4.Press A to exit the setting screen.
" If you use the light or alarms a number of times during a short period, the recover" The Power Saving indicator (P.SAVE) is on the display
indicator (RECOV) appears and the following operations become disabled untilOn/Off statusin all modes while Power Saving is turned on.
battery power recovers.
IlluminationAuto Return Features
Beeper tone" If you leave the watch in the Alarm Mode for two or three minutes without performing
After some time, battery power will recover and the recover indicator will disappear,any operation, it automatically returns to the Timekeeping Mode.
indicating that the above functions are enabled again." If you leave the watch with a flashing setting on the display for two or three minutes
Charging Precautionswithout performing any operation, the watch automatically exits the setting screen.
Certain charging conditions can cause the watch to become very hot. Avoid leaving
the watch in the areas described below whenever charging its rechargeable battery.Scrolling
Also note that allowing the watch to become very hot can cause its liquid crystalThe B and D buttons are used in various modes and setting screens to scroll
display to black out. The appearance of the LCD should become normal again whenthrough data. In most cases, holding down these buttons during a scroll operation
the watch returns to a lower temperature.scrolls through the data at high speed.
Warning!
Leaving the watch in bright light to charge its rechargeable battery can cause itInitial Screens
to become quite hot. Take care when handling the watch to avoid burn injury.When you enter the World Time or Alarm Mode, the data you were viewing when you
The watch can become particularly hot when exposed to the followinglast exited the mode appears first.
conditions for long periods.
" On the dashboard of a car parked in direct sunlight
" Too close to an incandescent lamp
" Under direct sunlight
3 |
ACEC
