Operation Guide 3017
Warning!
•Always make sure you are in a safe place whenever you are reading the watch using the auto light switch. Be especially careful when running or engaged in any other activity that can result in accident or injury. Also take care that sudden illumination by the auto light switch does not startle or distract others around you.
•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 motor vehicle. Sudden and unintended operation of the auto light switch can create a distraction, which can result in a traffic accident and serious personal injury.
To turn the auto light switch on and offIn any mode, hold down B for about two seconds to toggle the auto light switch on (auto light switch indicator displayed) and off (auto light switch indicator not displayed).
•The auto light switch indicator remains in all modes while the auto light switch is turned on.
Power Supply
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. The illustration shown below shows how you should position the watch for charging.
| Example: Orient the watch so its face | Solar cell |
| is pointing at a light source. |
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• The illustration shows how to position |
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| a watch with a resin band. |
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•You should try to keep the watch outside of your sleeve as much as possible. Charging is reduced
significantly if the face is only partially covered.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 5 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. | Level Battery Power Indicator | Function Status |
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Charging Guide
After a full charge, timekeeping remains enabled for up to about 9 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 |
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| Indoor Fluorescent Lighting (500 lux) | 8 hours |
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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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| Level 5 | Level 4 |
| Level 3 |
| Level 2 | Level 1 | ||||||||
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| Outdoor Sunlight |
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| 2 hours |
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| 25 hours | 7 hours | |||||
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| Sunlight Through a Window |
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| 6 hours |
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| 127 hours | 35 hours | |||||
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| Daylight Through a Window |
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| 11 hours |
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| 257 hours | 71 hours | |||||
| on a Cloudy Day (5,000 lux) |
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| Indoor Fluorescent Lighting |
| 120 hours |
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•The above exposure time values are all for reference only. Actual required exposure times depend on lighting conditions.
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 A to toggle the display contents as shown below.
Day of the Week/DatePM indicator | Day of week | Month – Day |
| ▲ | Press A. |
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Hour : Minutes | Seconds |
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| Time/Date | Hour : Minutes | Day of week |
| ▲ | Press A. |
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Month – Day
Seconds
•Pressing Din the Timekeeping Mode will display the Last Signal screen.Day of the Week/Date
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Time/Date
Press A. ▲▲ Press D.Last Signal Screen
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Last Signal Screen
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