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Operation Guide 3071 (B)

10

There are two standard methods of expressing altitude: Absolute altitude and
relative altitude. Absolute altitude expresses an absolute height above sea
level. Relative altitude expresses the difference between the height of two
different places.

Height of building 130 m
(relative altitude)

Rooftop at an altitude of
230 m above sea level
(absolute altitude)

Sea Level

Precautions Concerning Simultaneous Measurement of Altitude and
Temperature

Though you can perform altitude and temperature measurements at the same
time, you should remember that each of these measurements requires
different conditions for best results. With temperature measurement, it is best
to remove the watch from your wrist in order to eliminate the effects of body
heat. In the case of altitude measurement, on the other hand, it is better to
leave the watch on your wrist, because doing so keeps the watch at a
constant temperature, which contributes to more accurate altitude
measurements.

To give altitude measurement priority, leave the watch on your wrist or in
any other location where the temperature of the watch is kept constant.

To give temperature measurement priority, remove the watch from your
wrist and allow it to hang freely from your bag or in another location where
it is not exposed to direct sunlight. Note that removing the watch from your
wrist can affect pressure sensor readings momentarily.

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 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. Be 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.

Never try to remove or replace the watch’s special battery yourself. Use of
the wrong type of battery can damage the watch.

All data stored in memory is deleted, and 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.

The Home City setting reverts to the initial default of 

TYO

 (Tokyo)

whenever the battery power level drops to Level 5 or when you have the
rechargeable battery replaced. If this happens, change the Home City to
the setting you want.

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

(Charge Soon Alert)

l l l l l l l

ll

ll

ll

ll

ll

ll

l l

l

l l l l l l lll

lll

llll

lll

lll

ll

ll

ll l

Battery Power Indicator and Recover Indicator

The battery power indicator on the display shows you the current status of the
rechargeable battery’s power.

Battery power
indicator

Level

1

2

3

4

5

Function Status

All functions enabled.

All functions enabled.

Illumination, beeper, and
sensor operation disabled.

Except for timekeeping and
the 

C

 (charge) indicator, all

functions and display
indicators disabled.

All functions disabled.

ll

ll

l l l ll

l

c

The flashing 

LOW

 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 5, all functions are disabled and settings return to their initial
factory defaults. Once the battery reaches Level 2 (indicated by 

indicator)

after falling to Level 5, reconfigure the current time, date, and other
settings.

Display indicators reappear as soon as the battery is charged from Level 5
to Level 2.

Leaving the watch exposed to direct sunlight or some other very strong light
source can cause the battery power indicator to show a reading temporarily
that is higher than the actual battery level. The correct battery level should
be indicated after a few minutes.

Performing multiple sensor, illumination, or
beeper operations during a short period may
cause 

(recover) to appear on the display.

Illumination, alarm, countdown timer alarm,
hourly time signal, and sensor operations will
be disabled until battery power recovers.
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 is
indicated by 

(recover) on the display.

If 

(recover) appears frequently, it probably means that remaining battery

power is low. Leave the watch in bright light to allow it to charge.

Recover indicator

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 six 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.

Since these are the specs, we can include all the technical details.

Watch not exposed to light

Internal timekeeping

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 digital compass operations per week

1 hour of altimeter measurement at 5-second interval, once per month

2 hours of barometric pressure measurement per day

Stable operation is promoted by frequent exposure to light.

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

Summary of Contents for 3071

Page 1: ...ately five minutes exposure to bright sunlight coming in through a window Approximately 50 minutes exposure to indoor fluorescent lighting Be sure to read Power Supply for important information you need to know when exposing the watch to bright light If the display of the watch is blank If the display of the watch is blank it means that the watch s Power Saving function has turned off the display ...

Page 2: ... and indicates one of 16 directions on the display Direction readings are performed in the Digital Compass Mode You can store a direction reading in Bearing Memory and display that reading as you take subsequent readings For more information about Bearing Memory see Bearing Memory You can calibrate the bearing sensor if you suspect the direction reading is incorrect See Using the Digital Compass W...

Page 3: ...n the Digital Compass Mode hold down E for about two seconds until the magnetic declination angle value starts to flash This is the setting screen 2 Use A and C to change the magnetic declination angle value 3 Press D to move the flashing to the magnetic declination correction direction setting OFF E W This will cause the magnetic declination angle direction setting to flash l l l l l l l l l l l ...

Page 4: ...mekeeping Digital Compass Barometer Thermometer or Altimeter Mode press C to take a compass reading The reading will appear on the display after about two seconds 12 o clock position N N Current location Objective 5 Still holding the map in front of you turn your body until north as indicated by the watch and the northerly direction on the map are aligned This will position the map in accordance w...

Page 5: ...reference altitude is as simple as pressing a single button to reset the reference altitude to zero Important This watch estimates altitude based on air pressure This means that altitude readings for the same location may vary if air pressure changes The semiconductor pressure sensor used by the watch for altitude measurements is also affected by temperature When taking altitude measurements make ...

Page 6: ...disappears from the screen The save session also will stop automatically when Periodic Record 40 is stored The watch updates the historical record continually while an altitude measurement operation is in progress See Historical Record for more information You can recall saved records using the Data Recall Mode Periodic Records Periodic records of up to 40 altitude readings are taken during a save...

Page 7: ...titude differential Current location Destination altitude To use altitude differential measurement 1 In the Altimeter Mode check to make sure that the display shows the altitude differential value If the altitude differential value is not displayed use the procedure under To select an Altimeter Mode display format to select display format 3 or 4 2 Use the contour lines on your map to determine the...

Page 8: ... is 23 hours 59 minutes 59 99 seconds The stopwatch continues to run restarting from zero after it reaches its limit until you stop it The stopwatch measurement operation continues even if you exit the Stopwatch Mode Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement All of the operations in this section are performe...

Page 9: ...d 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 hold down L for about three seconds to toggle the auto light switch on A EL displayed and off A EL n...

Page 10: ... l l l l l l l l l l l l l l l l l l l l l l l Battery Power Indicator and Recover Indicator The battery power indicator on the display shows you the current status of the rechargeable battery s power Battery power indicator Level 1 2 3 4 5 Function Status All functions enabled All functions enabled Illumination beeper and sensor operation disabled Except for timekeeping and the C charge indicator...

Page 11: ...ept when a setting screen is on the display hold down D to toggle the button operation tone on not displayed and off displayed Since the D button is also the mode change button holding it down to turn the button operation on or off also causes the watch s current mode to change The indicator is displayed in all modes when the button operation tone is turned off Mute indicator Power Saving When tur...

Page 12: ...ncorrectly calibrating the barometric pressure sensor can result in incorrect readings Before performing the calibration procedure compare the readings produced by the watch with those of another reliable and accurate barometer Incorrectly calibrating the temperature sensor can result in incorrect readings Carefully read the following before doing anything Compare the readings produced by the watc...

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