USER’S GUIDE 2471
•This watch employs a solar cell that converts light into electricity that charges a
•The rechargeable battery should be replaced with a
•Having the battery replaced will delete all data stored in watch memory.
•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
The battery power indicator on the display shows you the current status of the rechargeable battery’s power.
Level | Battery Power | Function Status | |||||
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1 |
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| All functions enabled. |
2 |
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| All functions enabled. |
3 | l | l l | ll ll ll l | l l | Alarm, Hourly Time Signal, | ||
Battery power | l | l |
| l | l | backlight, display, sensors, | |
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indicator | (Charge Soon Alert) | and buttons are disabled. | |||||
4 |
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| All functions, including |
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| timekeeping, are disabled. |
•The flashing CHARGE indicator 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. Functions are enabled once again after the rechargeable battery is charged, but anything previously stored in memory is lost. Because of this, you need to set the current time and date after the battery is recharged to Level 2 from Level 4. Though the time appears on the display after the battery is charged to Level 3, you will not be able to change the time setting until the battery reaches Level 2.
•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 actually higher than the battery level. The correct battery power indicator should appear after a few minutes.
•If you use the backlight or the alarm a number of times during a short period, RECOVER appears on the display and the following operations become disabled until battery power recovers.
Backlight; Alarm and hourly time signal; Sensor operation
After some time, battery power will recover and RECOVER will disappear, indicating that the above functions are enabled again.
•Even if battery power is at Level 1 or Level 2, the Digital Compass Mode, Barometer/Thermometer Mode, or Altimeter Mode sensor may be disabled if there is not enough voltage available to power it sufficiently. This condition is indicated on the display as shown in the table below. Sensor operation should resume when battery voltage returns to the normal levels.
Mode | Display Indication for | Display Indication for |
| Low Voltage Upon | Low Voltage During |
| Entering the Mode | Measurement |
Digital | xxx | Last measured direction |
Compass |
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Barometer/ | Last measured pressure | Last measured pressure |
Thermometer | value | value |
Altitude | Blank | Last measured altitude |
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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 five months, while the watch is used under the conditions described below.
Operating Conditions
•Watch is not exposed to light
•Display on 18 hours per day, sleep state 6 hours per day
•1 backlight operation (2 seconds) per day
•10 seconds of alarm operation per day
•10 digital compass operations per week
•1 climb using the pressure sensor per month (10 hours per climb, with the Long Mode)
Charge Times
Exposing the watch to light for the periods shown below each day restores the power used by the above operating conditions.
Exposure Level (Brightness) | Approximate |
| Exposure Time |
Outdoor Sunlight (50,000 lux) | 5 minutes |
Sunlight Through a Window (10,000 lux) | 24 minutes |
Daylight Through a Window on a Cloudy Day (5,000 lux) | 48 minutes |
Indoor Fluorescent Lighting (500 lux) | 8 hours |
• Stable operation is promoted by frequent charging. |
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Recovery Times
The table below shows the amount exposure that is required to take the battery from one level to the next.
Exposure Level |
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(Brightness) |
| Level 4 | Level 3 | Level 2 | Level 1 | |||
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Outdoor Sunlight |
| 50 minutes | 12 hours | 2 hours | ||||
(50,000 lux) |
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Sunlight Through a |
| 2 hours | 60 hours | 10 hours | ||||
Window (10,000 lux) |
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Daylight Through a |
| 4 hours | - - - - - - - - |
| - - - - - - - - |
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Window on a Cloudy |
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Day (5000 lux) |
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Indoor Fluorescent |
| 32 hours | - - - - - - - - |
| - - - - - - - - |
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Lighting (500 lux) |
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•The above exposure time values are all for reference only. Actual required exposure times depend on lighting conditions.
Reference
This section contains more detailed and technical information about watch operation. It also contains important precautions and notes about the various features and functions of this watch.
Sensor Malfunction Indicator
Should the pressure sensor or direction sensor malfunction, the message ERR appears on the display for about two seconds, and then sensor operation is disabled.
Direction | Barometric | Altitude |
Measurement | Pressure | Measurement |
| Measurements |
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| ERR |
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| Last |
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•After battery power drops to Level 4, the watch performs a memory check when power is restored from Level 3 to Level 2. The message ERR appears on the display if any memory abnormality is discovered. If this happens, take the watch to an authorized CASIO distributor or maintenance service provider.
•Even if battery power is at Level 1 or Level 2, the Digital Compass Mode, Barometer/Thermometer Mode, or Altimeter Mode sensor may be disabled if there is not enough voltage available to power it sufficiently. In this case, the ERR message appears on the display when you switch to the Timekeeping Mode. This does not indicate malfunction, and sensor operation should resume once battery voltage returns to its normal level.
•Even if battery power is at Level 1 or Level 2, the ERR message will appear on the Timekeeping Mode screen if there is not enough voltage available to power the pressure sensor sufficiently during a barometric pressure measurement or memory measurement (altitude) operation. This does not indicate malfunction, and sensor operation should resume once battery voltage returns to its normal level.
Whenever you have a sensor malfunction, be sure to take the watch to an authorized CASIO distributor or service provider as soon as possible.
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