Bedienungsanleitung Casio QW2471 (Seite 6 von 8) (Englisch)

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USER’S GUIDE 2471

• 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

Battery Power

Indicator

Function Status

All functions enabled.

Alarm, Hourly Time Signal,

backlight, display, sensors,

and buttons are disabled.

All functions, including

timekeeping, are disabled.

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.

Casio QW2471 Seite 6

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