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Casio QW2471 Handleiding

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USER’S GUIDE 2471
6
• This watch employs a solar cell that converts light into electricity that
charges a built-in rechargeable battery. Normally, the rechargeable battery
should not need replacement, but after very long use over a number of
years, the rechargeable battery may lose its ability to achieve a full charge.
Should you notice problems with getting the rechargeable battery to a full
charge, contact your dealer or CASIO distributor about having the
rechargeable battery replaced.
• The rechargeable battery should be replaced with a CASIO-specified
CTL1616 battery only. Other rechargeable batteries can cause damage to the
watch.
• 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.
• 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.
Level
1
2
3
4
Battery Power
Indicator
Function Status
All functions enabled.
All functions enabled.
Alarm, Hourly Time Signal,
backlight, display, sensors,
and buttons are disabled.
All functions, including
timekeeping, are disabled.
l
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Battery power
indicator
(Charge Soon Alert)
Mode
Digital
Compass
Barometer/
Thermometer
Altitude
Display Indication for
Low Voltage During
Measurement
Last measured direction
Last measured pressure
value
Last measured altitude
Display Indication for
Low Voltage Upon
Entering the Mode
xxx
Last measured pressure
value
Blank
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.
• Stable operation is promoted by frequent charging.
Approximate
Exposure Time
5 minutes
24 minutes
48 minutes
8 hours
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)
• The above exposure time values are all for reference only. Actual required
exposure times depend on lighting conditions.
Recovery Times
The table below shows the amount exposure that is required to take the
battery from one level to the next.
Approximate Exposure Time
Level 4 Level 3 Level 2 Level 1
50 minutes 12 hours 2 hours
2 hours 60 hours 10 hours
4 hours - - - - - - - - - - - - - - - -
32 hours - - - - - - - - - - - - - - - -
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
Sunlight Through a
Window (10,000 lux)
Daylight Through a
Window on a Cloudy
Day (5000 lux)
Indoor Fluorescent
Lighting (500 lux)
▲
▲
▲
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
Measurement
Barometric
Pressure
Measurements
Altitude
Measurement
Last
measurement
value
ERR
indicator
• 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.
6

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