Operation Guide 2972 2973
Important!
•Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is blocked from exposure to light can cause rechargeable battery power to run down. Make sure that the watch is normally exposed to bright light whenever possible.
•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, the rechargeable battery may lose its ability to achieve a full charge. If you experience problems getting the special rechargeable battery to charge fully, contact your dealer or CASIO distributor about having it replaced.
•Never try to remove or replace the watch’s special battery yourself. Use of the wrong type of battery can damage the watch.
•The current time and all other settings return to their initial factory defaults whenever battery power drops to Level 4 and when you have the battery replaced.
•Turn on the watch’s Power Saving function and keep it in an area normally exposed to bright light when storing it for long periods. This helps to keep the rechargeable battery from going dead.
Battery Power Indicator and Recover Indicator
The battery power indicator shows you the current power level of the rechargeable battery.
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
•When setting the time, you can also configure settings for the illumination duration, the
•In the Timekeeping Mode, you can press Bto change the display format as shown below.
•Pressing D in the Timekeeping Mode will display the Last Signal screen.
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| Day of week |
Month – Day |
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| Day of the Week Screen |
Hour : Minutes |
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Seconds | Press D. |
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PM indicator | ▲ | ▲ | |
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Recover indicator
Battery power indicator
Level | Battery Power Indicator | Function Status | ||||||
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2 |
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3 |
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| illumination, auto light switch, | ||||
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All functions, including
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timekeeping, disabled and initialized.
Last Signal Screen
Setting the Time and Date
Make sure you select your Home City code before you change the current time and date settings. World Time Mode times are all displayed in accordance with the Timekeeping Mode settings. Because of this, World Time Mode times will not be correct if you do not select the proper Home City code before setting the time and date in the Timekeeping Mode.
To set the time and date
City code | 1. In the Timekeeping Mode, hold down Auntil the city | |||
code starts to flash, which indicates the setting screen. | ||||
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| 2. Press C to change the flashing contents in the | |||
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•The flashing charge indicator ( CHG ) at Level 3 tells you that battery power is very low, and 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 factory 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 3 (indicated by the flashing charge indicator) from Level 4. You will not be able to configure any of the other settings until the battery reaches Level 2 (no charge indicator) after dropping to Level 4.
•Leaving the watch in direct sunlight or some other very strong light source can cause the battery power indicator to show a reading that is momentarily higher than the actual battery level. The correct battery power indicator should appear after a few minutes.
•If you use the light or alarms a number of times during a short period, the recover indicator (RECOV) appears and the following operations become disabled until battery power recovers.
Illumination Beeper tone
After some time, battery power will recover and the recover indicator will disappear, indicating that the above functions are enabled again.
Charging Precautions
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. Also note that allowing the watch to become very hot can cause its liquid crystal display to black out. The appearance of the LCD should become normal again when the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable battery can cause it to become quite hot. Take care when handling the watch to avoid burn injury. The watch can become particularly hot when exposed to the following conditions for long periods.
•On the dashboard of a car parked in direct sunlight
•Too close to an incandescent lamp
•Under direct sunlight
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.
Exposure Level (Brightness) | Approximate Exposure Time |
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Outdoor Sunlight (50,000 lux) | 5 minutes |
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Sunlight Through a Window (10,000 lux) | 24 minutes |
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Daylight Through a Window on a Cloudy Day | 48 minutes |
(5,000 lux) |
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Indoor Fluorescent Lighting (500 lux) | 8 hours |
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•Since these are the specs, we can include all the technical details.
•Display on 18 hours per day, sleep state 6 hours per day
•1 illumination operation (1.5 seconds) per day
•10 seconds of alarm operation per day
•16 minutes of signal reception per day
•Stable operation is promoted by frequent charging.
Recovery Times
The table below shows the amount exposure that is required to take the battery from one level to the next.
Exposure Level | Approximate Exposure Time |
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(Brightness) |
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Level 4 |
| Level 3 |
| Level 2 |
| Level 1 |
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Outdoor Sunlight (50,000 lux) | 2 hours |
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Sunlight Through a Window | 5 hours |
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(10,000 lux) |
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Daylight Through a Window | 9 hours |
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on a Cloudy Day (5,000 lux) |
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Indoor Fluorescent Lighting | 101 hours |
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(500 lux) |
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• The above exposure time values are all for reference only. | Actual required exposure |
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times depend on lighting conditions. |
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sequence shown below to select other settings. | ||
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City Code | DST | Seconds | Hour | |||
Format | ||||||
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| Power | Day | Month | Year | Minutes | |
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3.When the setting you want to change is flashing, use B and/or Dto change it as described below.
Screen: | To do this: | Do this: |
BER | Change the city code | Use D (east) and B(west). |
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| Cycle between auto DST (A), | Press D. |
| Standard Time (OF), and Daylight |
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| Saving Time (ON) |
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| Toggle between | Press D. |
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| Reset the seconds to 00 | Press D. |
| Toggle the illumination duration | Press B. |
| setting between 1.5 seconds ( ) |
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| Change the hour, minutes, or year | Use D (+) and B |
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| Change the month or day |
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| Toggle Power Saving on (ON) and | Press D. |
| off (OF) |
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•See “City Code Table” for a complete list of available city codes.
•Auto DST (A) can be selected only while LIS, LON, BCN, MAD, PAR, MIL, ROM, BER, STO, or ATH is selected as the Home City code. For more information, see “Daylight Saving Time (DST)” below.
•For information about settings other than the time and date, see the following. Illumination duration: Illumination
Power Saving: Power Saving Function
4.Press Ato exit the setting screen.
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.
The time calibration signals transmitted from Rugby and Mainflingen includes both Standard Time and DST data. When the Auto DST setting is turned on, the watch switches between Standard Time and DST (summer time) automatically in accordance with the Rugby and Mainflingen signals.
•The default DST setting is Auto DST (A) whenever you select LON, PAR, BER, or ATH as your Home City code.
•If you experience problems receiving the time calibration signal in your area, it is probably best to switch between Standard Time and Daylight Saving Time (summer time) manually.
To change the Daylight Saving Time (summer time) setting
1.In the Timekeeping Mode, hold down Auntil the city code starts to flash, which indicates the setting screen.
2.Press Cand the DST setting screen appears.
3.Use Dto cycle through the DST settings in the sequence shown below.
Auto DST (A) |
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| DST on (ON) |
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4. When the setting you want is selected, press Ato exit the setting screen.
• The DST indicator appears to indicate that Daylight Saving Time is turned on.
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