Operation Guide 3108
5
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 off
In the Timekeeping Mode (except when a setting screen is on the display),
hold down
L
for about three 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 is
pointing at a light source.
•
The illustration shows how to position a
watch with a resin band.
•
Note that charging efficiency drops when
any part of the solar cell is blocked by
clothing, etc.
•
You should try to keep the watch outside
of your sleeve as much as possible.
Charging is reduced significantly even if
the face is covered only partially.
Solar cell
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
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.
•
The special rechargeable (secondary) battery used by your watch is not
intended to be removed or replaced by you. Use of a rechargeable battery
other than the special one specified for this watch 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.
Function Status
All functions enabled.
All functions enabled.
Alarm, hourly time
signal, illumination and
time calibration signal
reception disabled.
All functions, including
auto light switch,
disabled.
All functions, including
timekeeping, disabled
and initialized.
Level
1
2
3
4
5
Battery Power Indicator
(Charge Soon Alert)
(Charge Soon Alert)
Battery power indicator
l l l
ll
ll
l
l
Battery Power Indicator and Recover Indicator
The battery power indicator shows you the current power level of the
rechargeable battery.
•
flashes on the display in the Timekeeping Mode when battery is at
Level 3.
•
at Level 3 and the flashing charge indicator (
CHG
) at Level 4 tell you
that battery power is very low, and that exposure to bright light for charging
is required as soon as possible.
•
At Level 5, 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 4 (indicated by the flashing charge indicator (
CHG
)) from
Level 5. You will not be able to configure any of the other settings until the
battery reaches Level 3 (no charge indicator) after dropping to Level 5.
•
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 illumination or alarms a number of times during a short
period, the charge indicator (
CHG
) flashes and the following operations
become disabled until battery power recovers.
Illumination
Beeper tone
Time calibration signal reception
After some time, battery power will recover and the charge indicator (
CHG
)
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 nine 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)
Outdoor Sunlight (50,000 lux)
Sunlight Through a Window (10,000 lux)
Daylight Through a Window on a Cloudy Day
(5,000 lux)
Indoor Fluorescent Lighting (500 lux)
Approximate Exposure Time
5 minutes
24 minutes
48 minutes
8 hours
•
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
•
10 minutes of signal reception per day
•
Stable operation is promoted by frequent exposure to light.
7 hours
35 hours
71 hours
2 hours
6 hours
11 hours
120 hours
25 hours
126 hours
256 hours
Recovery Times
The table below shows the amount exposure that is required to take the
battery from one level to the next.
•
The above exposure time values are all for reference only. Actual required
exposure times depend on lighting conditions.
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
Sunlight Through a Window
(10,000 lux)
Daylight Through a Window
on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting
(500 lux)
Approximate Exposure Time
Level 5 Level 4 Level 3
Level 2
Level 1
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