Casio | MO0804-EA | User's Manual | Casio MO0804-EA User's Manual

MO0804-EA
Operation Guide 3143
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out
of your purchase, be sure to read this manual carefully.
• This watch does not have a time zone that corresponds to the
Greenwich Mean Time differential of –3.5 hours. Because of this, the
radio-controlled timekeeping and World Time functions will not display
the correct time for Newfoundland, Canada.
Keep the watch exposed to bright light
The electricity generated by the solar cell of the
watch is stored by a built-in battery. Leaving or
using the watch where it is not exposed to light
causes the battery to run down. Make sure the
watch is exposed to light as much as possible.
• When you are not wearing the watch on your
wrist, position the face so it is pointed at a
source of bright light.
• 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.
l
l l l l l l l l l
l
Bright light
Solar cell
• The watch continues to operate, even when it is not exposed to light.
Leaving the watch in the dark can cause the battery to run down, which will
result in some watch functions being disabled. If the battery goes dead, you
will have to re-configure watch settings after recharging. To ensure normal
watch operation, be sure to keep it exposed to light as much as possible.
Battery charges in the light.
Battery discharges in the dark.
Bright light
Solar cell
(Converts light to
electrical power.)
• The actual level at which some functions are disabled depends on the
watch model.
• Frequent display illumination can run down the battery quickly and require
charging. The following guidelines give an idea of the charging time
required to recover from a single illumination operation.
Approximately 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 to conserve power.
• See “Power Saving” for more information.
Applications
The built-in sensors of this watch measure barometric pressure, temperature
and altitude. Measured values are then shown on the display. Such features
make this watch useful when hiking, mountain climbing, or when engaging in
other such outdoor activities.
Warning!
• The measurement functions built into this watch are not intended for
taking measurements that require professional or industrial precision.
Values produced by this watch should be considered as reasonable
representations only.
• CASIO COMPUTER CO., LTD. assumes no responsibility for any loss,
or any claims by third parties that may arise through the use of this
watch.
Electrical
energy
About This Manual
LEVEL 2
All
functions
enabled
LEVEL 1
LEVEL 2
Dis- LEVEL 3
charge LEVEL 4
LEVEL 3
Charge LEVEL 4
Some
functions
disabled
Rechargeable battery
General Guide
• The illustration below shows which buttons you need to press to navigate
between modes.
Timekeeping Mode
• In any mode, press L to illuminate the display.
• You can use buttons B and D to enter a sensor mode directly from the
Timekeeping Mode or from another sensor mode. To enter a sensor mode
from the Data Recall, World Time, Stopwatch, Countdown Timer, Alarm, or
Receive Mode, first enter the Timekeeping Mode and then press the
applicable button.
Data Recall
Mode
Sensor Modes
Press C.
▲
▲
Countdown
Timer Mode
Stopwatch Mode
Alarm Mode
Press D.
Barometer/
Thermometer Mode
Altimeter Mode
▲
▲
▲
Press B.
▲
World Time
Mode
• Button operations are indicated using the
letters shown in the illustration.
• Each section of this manual provides you with
the information you need to perform operations
in each mode. Further details and technical
(Light)
information can be found in the “Reference”
section.
▲
LEVEL 1
Receive Mode
▲
▲
▲
Press C.
Radio-controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting
accordingly.
• This watch is designed to pick up the time calibration signals transmitted in
Germany (Mainflingen), England (Anthorn), the United States (Fort Collins)
and Japan.
• See the information under “Signal Reception Troubleshooting” if you
experience problems with time calibration signal reception.
• When using the watch outside the areas covered by the time signal
transmitters, you will have to adjust the current time setting manually as
required. See “Timekeeping” for more information about manual time
settings.
• The U.S. time calibration signal can be picked up by the watch while in
North America. The term “North America” in this manual refers to the area
that consists of Canada, the continental United States, and Mexico.
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time
calibration signal. You also can perform a manual procedure to set the time
and date, when necessary.
• The first thing you should do after purchasing this watch is to specify
your Home City (the city where you normally will use the watch). For
more information, see “To specify your Home City” below.
1
Operation Guide 3143
To specify your Home City
City code
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PM
indicator
1. In the Timekeeping Mode, hold down A until
the city code starts to flash, which indicates
the setting screen.
2. Press D (east) and B (west) to select the
city code you want to use as your Home City.
LON : London
PAR, BER : Paris, Berlin, Milan, Rome,
Amsterdam, Hamburg, Frankfurt,
Vienna, Barcelona, Madrid
Second
ATH : Athens
HKG, TYO, SEL : Hong Kong, Tokyo, Seoul
Hour : Minute
HNL : Honolulu
ANC : Anchorage, Nome
LAX : Los Angeles, San Francisco, Las Vegas, Seattle/Tacoma,
Vancouver, Tijuana
DEN : Denver, El Paso, Edmonton, Culiacan
CHI : Chicago, Houston, Dallas/Fort Worth, New Orleans, Winnipeg,
Mexico City
NYC : New York, Detroit, Miami, Boston, Montreal
• For full information on city codes, see the “City Code Table”.
• Note that this watch does not have a city code that corresponds to
Newfoundland.
3. Press A to exit the setting screen.
• Normally, your watch should show the correct time as soon as you select
your Home City code. If it does not, it should adjust automatically after the
next auto receive operation (in the middle of the night). You also can
perform manual receive or you can set the time manually.
• The watch will receive the time calibration signal automatically from the
applicable transmitter (in the middle of the night) and update its settings
accordingly. For information about the relationship between city codes and
transmitters, see “Time Calibration Signal Reception” and “Transmitters”.
• See the maps under “Approximate Reception Ranges” for information about
the reception ranges of the watch.
• Under factory default settings, auto receive is turned off for all of the
following city codes: HKG (Hong Kong), HNL (Honolulu),and ANC
(Anchorage). For details about turning on auto receive for these city codes,
see “To turn auto receive on and off”.
• You can disable time signal reception, if you want. See “To turn auto receive
on and off” for more information.
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration
signal: auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically
up to six times a day. When any auto receive is successful, the remaining
auto receive operations are not performed. For more information, see “About
Auto Receive”.
• Manual Receive
Manual receive lets you start a time calibration receive operation with the press
of a button. For more information, see “To perform manual receive”.
Important!
• When getting ready to receive the time calibration signal, position the watch
as shown in the nearby illustration, with its 12 o’clock side facing towards a
window. This watch is designed to receive a time calibration signal late at
night. Because of this, you should place the watch near a window as shown
in the illustration when you take it off at night. Make sure there are no metal
objects nearby.
• Signal reception normally is better at night than during the day.
• Time calibration signal reception takes from two to seven minutes, but in
some cases it can take as long as 14 minutes. Take care that you do not
perform any button operations or move the watch during this time.
• The time calibration signal the watch will attempt to pick up depends on its
current Home City code setting as shown below.
Home City Code
LON,
PAR, BER, ATH
HKG*, TYO, SEL
HNL*, ANC*, LAX,
DEN, CHI, NYC
U.K. and German Signals
Near a
construction
site, airport,
or other
sources of
electrical
noise
U.S. Signal
1,500 kilometers
Mainflingen
Anthorn
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
500 kilometers
U.K. signal
transmitter
approximate
reception range
as of April 2007
500 kilometers
Fukuoka/Saga
1,000 kilometers
500 kilometers
Fukushima
1,000 kilometers
Japan Signal
• In April 2007, the U.K. signal transmitter was moved from Rugby to
Anthorn, which resulted in a slight shift in the approximate reception range
of the signal. The shift is so slight that there is virtually no change in the
ability to receive the signal.
• Even when the watch is within the reception range of a transmitter, signal
reception may be impossible at times due to the effects of geographic
contours, structures, weather, the season of the year, the time of day, radio
interference, etc. Note that the signal becomes weaker at distances of
approximately 500 kilometers from the transmitter, which means that the
influence of the conditions listed above becomes even greater.
About Auto Receive
The watch receives the time calibration signal automatically up to six times a
day. When any auto receive is successful, the remaining auto receive
operations are not performed. The reception schedule (calibration times)
depends on your currently selected Home City, and whether standard time or
Daylight Saving Time is selected for your Home City.
Your Home City
LON
Standard Time
PAR
BER
Standard Time
ATH
Standard Time
Auto Receive Start Times
1
2
3
4
5
6
1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Midnight*
Daylight Saving Time 2:00 am 3:00 am 4:00 am 5:00 am Midnight* 1:00 am*
2:00 am 3:00 am 4:00 am 5:00 am Midnight* 1:00 am*
Daylight Saving Time 3:00 am 4:00 am 5:00 am Midnight* 1:00 am* 2:00 am*
3:00 am 4:00 am 5:00 am Midnight* 1:00 am* 2:00 am*
Daylight Saving Time 4:00 am 5:00 am Midnight* 1:00 am* 2:00 am* 3:00 am*
• Make sure the watch is facing the right way.
• Proper signal reception can be difficult or even impossible under the
conditions listed below.
Near
household
appliances,
office
equipment,
or a mobile
phone
60.0 kHz
Approximate Reception Ranges
or
Inside a
vehicle
Frequency
60.0 kHz
77.5 kHz
40.0 kHz
60.0 kHz
* The areas covered by the HKG, HNL, and ANC city codes are quite far
from the time calibration signal transmitters, and so certain conditions
may cause problems with signal reception.
12 o’clock
Inside or
among
buildings
Transmitter
Anthorn (England)
Mainflingen (Germany)
Fukushima (Japan)
Fukuoka/Saga (Japan)
Fort Collins, Colorado
(United States)
Near hightension
power lines
Among or
behind
mountains
HKG,
SEL,
TYO
HNL,
ANC,
LAX,
DEN,
CHI,
NYC
Standard Time
Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am
Standard Time and Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am
Daylight Saving
Time
*Next day
Note
• When a calibration time is reached, the watch will receive the calibration
signal only if it is in either the Timekeeping Mode or World Time Mode.
Reception is not performed if a calibration time is reached while you are
configuring settings.
• Auto receive of the calibration signal is designed to be performed early in
the morning, while you sleep (provided that the Timekeeping Mode time is
set correctly). Before going to bed for the night, remove the watch from your
wrist, and put it in a location where it can receive the signal easily.
2
Operation Guide 3143
The receiving indicator shows the strength of the calibration signal being
received. For best reception, be sure to keep the watch in a location where
signal strength is strongest. The receiving indicator is displayed while an auto
or manual receive operation is in progress.
Receiving
indicator
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About the Receiving Indicator
To turn auto receive on and off
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• The watch takes from two to 14 minutes to receive the time calibration
signal whenever a calibration time is reached. Do not perform any button
operation within 14 minutes before or after any one of the calibration times.
Doing so can interfere with correct calibration.
• Remember that reception of the calibration signal depends on the current
time in the Timekeeping Mode. The receive operation will be performed
whenever the display shows any one of the calibration times, regardless of
whether or not the displayed time actually is the correct time.
On/Off
status
To check the latest signal reception results
Enter the Receive Mode.
• When receive is successful, the display shows
the time and date that receive was successful.
indicates that none of the reception
operations were successful.
• To return to the Timekeeping Mode, press C.
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Weak
(Level 1)
Strong
(Level 5)
• Even in an area where signal strength is strong, it takes about 10 seconds
for signal reception to stabilize enough for the receiving indicator to indicate
signal strength.
• Use the receiving indicator as a guide for checking signal strength and for
finding the best location for the watch during signal receive operations.
• Following reception of the time calibration signal and calibration of the
watch’s time setting, the Level 5 receiving indicator will remain on the
display in all modes. The Level 5 receiving indicator will not be displayed if
signal reception was unsuccessful or after you adjust the current time
setting manually.
• The Level 5 receiving indicator is displayed only when the watch is able to
receive both time and date data successfully. It does not appear when only
time data is received.
• The Level 5 receiving indicator indicates that at least one of the auto
calibration signal receive operations was successful. Note, however, that
the indicator disappears from the display each day at the start of the first
auto receive operation of the day.
To perform manual receive
Receiving
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1. Enter the Receive Mode.
2. In the Receive Mode, hold down A until the
current auto receive setting (ON or OFF)
starts to flash. This is the setting screen.
• Note that the setting screen will not appear
if the currently selected Home City is one
that does not support time calibration
reception.
3. Press D to toggle auto receive on (ON) and
off (OFF).
4. Press A to exit the setting screen.
• For information about city codes that support
signal receive, see “To specify your Home City”.
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Receive successful
Receive failed
If there was a previously
successful reception
1. Enter the Receive Mode.
2. Place the watch on a stable surface so its 12
o’clock side is facing towards a window.
3. Hold down D for about two seconds until RC
starts to flash on the display.
• Time calibration signal reception takes from
two to seven minutes, but in some cases it can
take as long as 14 minutes.Take care that you
do not perform any button operations or move
the watch during this time.
• If the receive operation is successful, the
reception date and time appear on the display,
along with the GET indicator.
The watch will enter the Receive Mode if you
press D or if you do not perform any button
operation for about one or two minutes.
• If the current reception fails but a previous
reception was successful, the display shows
the previous reception’s date and time, and the
ERR indicator.
indicates that none of
the reception operations have been successful
during the current date.
The watch will enter the Receive Mode without
changing the time setting if you press D or if
you do not perform any button operation for
about one or two minutes.
Note
• To interrupt a receive operation and return to
the Receive Mode, press D.
If no reception has
been successful
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal
reception.
Problem
Probable Cause
What you should do
Cannot perform •The watch is not in the Receive • Enter the Receive Mode
and try again.
manual receive. Mode.
•Your current Home City is one • Select one of the
following as your Home
that does not support signal
City: LON, PAR, BER,
reception.
ATH, HKG, SEL, TYO,
HNL, ANC, LAX, DEN,
CHI, or NYC.
• Perform manual signal
Auto receive is •You changed the time setting
receive or wait until the
turned on, but
manually.
the Level 5
•You changed the DST setting of next auto signal receive
operation is performed.
receiving
your Home City in the World
• Check to make sure the
indicator does
Time Mode.
watch is in a location
not appear on •You pressed a button while
where it can receive the
the display.
signal receive was in progress.
signal.
•Even if receive is successful,
the Level 5 receiving indicator
disappears from the display
each day when the first auto
receive operation of the day is
performed.
•Time data (hour, minute,
second) only was received
during the last receive
operation. The Level 5 receiving
indicator appears only when
time data and date data (year,
month, day) are both received.
• Change the DST setting
Time setting is •If the time is one hour off, the
DST setting may be incorrect.
to Auto DST.
incorrect
following signal •The Home City code setting is • Select the correct Home
not correct for the area where
City code.
reception.
you are using the watch.
• For further information, see “Important!” under “Time Calibration Signal
Reception” and “Radio-controlled Atomic Timekeeping Precautions”.
Barometer/Thermometer
This watch uses a pressure sensor to measure air pressure (barometric
pressure) and a temperature sensor to measure temperature.
• You can calibrate the pressure sensor and the temperature sensor if you
suspect that readings are incorrect.
To take barometric pressure and temperature readings
Pressure
Barometric
pressure graph differential
pointer
Temperature
Barometric
pressure
Pressing B in the Timekeeping Mode or
Altimeter Mode enters the Barometer/
Thermometer Mode and starts barometric
pressure and temperature measurements
automatically .
• It can take up to four or five seconds for the
barometric pressure reading to appear after
you enter the Barometer/Thermometer Mode.
• Barometric pressure is displayed in units of
1hPa (or 0.05 inHg).
• The displayed barometric pressure value
changes to xxxx hPa (or inHg) if a measured
barometric pressure falls outside the range of
260 hPa to 1100 hPa (7.65 inHg to 32.45
inHg). The barometric pressure value will
reappear as soon as the measured barometric
pressure is within the allowable range.
3
Operation Guide 3143
Altimeter
• Temperature is displayed in units of 0.1°C (or 0.2°F).
• The displayed temperature value changes to xxx °C (or °F) if a measured
temperature falls outside the range of –10.0°C to 60.0°C (14.0°F to
140.0°F). The temperature value will reappear as soon as the measured
temperature is within the allowable range.
• In some areas, barometric pressure is expressed in millibars (mb) instead
of hectopascals (hPa). It really makes no difference, because 1hPa = 1mb.
• You can select either hectopascals (hPa) or inchesHg (inHg) as the display
unit for the measured barometric pressure, and Celsius (°C) or Fahrenheit
(°F) as the display unit for the measured temperature value. See “To select
the temperature, altitude, and barometric pressure units”.
• See “Barometer and Thermometer Precautions” for important precautions.
Barometric Pressure Graph
Barometric pressure indicates changes in the atmosphere. By monitoring
these changes you can predict the weather with reasonable accuracy.
This watch takes barometric pressure measurements automatically every two
hours (at the top of each even-numbered hour), regardless of its current
mode. Measurement results are used to produce barometric pressure graph
and barometric pressure differential pointer readings.
The barometric pressure graph shows readings of previous measurements for
up to 24 hours. The horizontal axis of the graph represents time, with each dot
standing for two hours. The rightmost dot represents the most recent reading.
The vertical axis of the graph represents barometric pressure, with each dot
standing for the relative difference between its reading and that of the dots
next to it. Each dot represents 1hPa.
The following shows how to interpret the data that appears on the barometric
pressure graph.
A rising graph generally means improving weather.
A falling graph generally means deteriorating weather.
Note that if there are sudden changes in barometric
pressure or temperature, the graph line of past
measurements may run off the top or bottom of the display.
The entire graph will become visible once barometric
conditions stabilize.
Not visible on
the display.
The following conditions cause the barometric pressure
measurement to be skipped, with the corresponding point on
the barometric pressure graph being left blank.
• Barometric reading that is out of range (260 hPa/mb to 1,100 hPa/mb or
7.65 inHg to 32.45 inHg)
• Sensor malfunction
Barometric Pressure Differential Pointer
This pointer indicates the relative difference between the most recent
barometric pressure reading indicated on the barometric pressure graph, and
the current barometric pressure value displayed in the Barometer/
Thermometer Mode.
• Pressure differential is indicated in the range of ±5 hPa, in 1-hPa units.
• The barometric pressure differential pointer is not displayed when the
displayed current barometric value is outside of the allowable measurement
range (260 to 1,100 hPa).
• Barometric pressure is calculated and displayed using hPa as the standard.
The barometric pressure differential also can be read in inHg units as
shown in the illustration.
inHg values
Current pressure greater
hPa values
than most recent
measured pressure
Barometric pressure
differential
The watch’s altimeter uses a pressure sensor to detect current air pressure,
which is then used to estimate the current altitude based on ISA (International
Standard Atmosphere) preset values. You also can specify a reference
altitude, which the watch will use to calculate your current altitude based on
the value you specify. Altimeter functions also include storage of
measurement data in memory.
You also can measure the altitude differential (change) from a specific
reference altitude. Specifying the 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 also is affected by temperature. When taking altitude
measurements, make sure the watch is not subjected to temperature
changes.
• To avoid the effect of sudden temperature changes during measurement,
keep the watch on your wrist in direct contact with your skin.
• Do not rely upon this watch for altitude measurements or perform button
operations while sky diving, hang gliding, or paragliding, while riding a
gyrocopter, glider, or any other aircraft, or while engaging in any other
activity where there is the chance of sudden altitude changes.
• Do not use this watch for measuring altitude in applications that demand
professional or industrial level precision.
• Remember that the air inside of a commercial aircraft is pressurized.
Because of this, the readings produced by this watch will not match the
altitude readings announced or indicated the flight crew.
How the Altimeter Measures Altitude
The altimeter can measure altitude based on its own preset values, or a
reference altitude specified by you.
When you measure altitude based on preset values
Data produced by the watch’s barometric pressure sensor is converted to
approximate altitude based on ISA (International Standard Atmosphere)
conversion values stored in watch memory.
When you measure altitude using a reference altitude specified by you
After you specify a reference altitude, the watch uses that value to convert the
current measured barometric pressure value to altitude.
• When mountain climbing, you can set the
reference value in accordance with a marker
B
along the way or altitude information from a
map. After that, the altitude readings
A
400
produced by the watch will be more accurate
than they would without a reference altitude.
Displaying Your Current Altitude
You can use the procedure described in this section to display your current
altitude. If you leave the watch in the Altimeter Mode, it will update the
displayed altitude value regularly, and indicate reading-to-reading changes in
the altitude graph at the top of the display.
The Altimeter Mode gives you a choice of four different display formats. The
format you choose determines what type of data is displayed. The Altimeter
Mode screen can show any three of the following four items: altitude graph,
altitude value, altitude differential, and the current time. You also can select
either of the following two altitude measurement types.
0’05: Readings at five-second intervals for one hour
2’00: Readings at five-second intervals for the first three minutes followed
by two-minute intervals for approximately nine or 10 hours
• For information about configuring settings for the altitude reading interval
and duration, see “To select the altitude measurement type”.
Important!
• The procedure in this section simply displays values indicating your current
altitude, without storing them in watch memory. For information about
recording altitude readings in watch memory, see “Saving Altitude Data”.
To display your current altitude
Altitude graph
Pressure differential
examples in the
illustration are indicated
in 3 hPa/0.1 inHg steps.
Current pressure less
than most recent
measured pressure
Current altitude
About Barometric and Temperature Measurements
• Barometric pressure and temperature measurement operations are
performed as soon as you enter the Barometer/Thermometer Mode. After
that, barometric pressure and temperature measurements are taken every
five seconds.
• You also can perform a barometric pressure and temperature measurement
at any time by pressing B in the Barometer/Thermometer Mode.
Current time
Altitude differential
pointer
1. Press D in the Timekeeping Mode or
Barometer/Thermometer Mode to enter the
Altimeter Mode.
• The watch will start altitude measurement
automatically, and display the result.
• It can take up to four or five seconds for the
altitude reading to appear after you enter
the Altimeter Mode.
2. If you want the altitude value and altitude
graph to be updated in accordance with the
altitude measurement type (interval and
duration) you have selected, leave the watch
in the Altimeter Mode.
• If you want to restart the altitude measurement
operation at any point, press D.
3. To stop the altitude measurement operation,
press C to exit the Altimeter Mode.
4
Operation Guide 3143
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To select an Altimeter Mode display format
1. In the Altimeter Mode, hold down A for about
two seconds until either OFF or the current
reference altitude value starts to flash. This is
the setting screen.
2. Press C twice to display the format selection
screen.
• The number of the currently selected format
(1 through 4) will flash on the display.
3. Use D (+) and B (–) to scroll through the
available display format numbers (1 through 4).
• The contents of each of the Altimeter Mode
display formats are shown below.
Display format number
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Display Format
Selection Screen
Format 1
Altitude
graph
Altitude
Current time
Format 2
Altitude
graph
Current
time
Altitude
Format 3
Format 4
Altitude
differential
Altitude
differential
Altitude
Current time
Altitude
Current time
4. Press A to exit the setting screen.
• If you selected display format 3 or 4, the watch will measure the altitude
differential. See “Altitude Differential” for more information.
Saving Altitude Data
An altitude data save session saves data in two different records: periodic
records and a current session record.
To start a new save session
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• During a save session the watch also updates the current session
record. See “Current Session Record” for more information.
• Once you start a save session, measurement continues to be
performed, and the REC indicator flashes on the display, even if you
change to another mode.
How periodic records are created and saved
The following operation is performed simultaneously with the operation
described under “How current session record data is updated”.
a. The watch creates Periodic Record 1 when you start a new save session.
Periodic Record 1 contains the current date (month and day), time, and
altitude.
• Each periodic record contains the current date (month and day), time,
and altitude.
b. After that, the watch takes readings and stores Periodic Records 2, 3, 4,
and so on at minute 00, 15, 30, and 45 of each hour.
c. After Periodic Record 40 is stored (or if you stop the save session
manually by holding down D), the watch will create a final periodic record,
which contains the current date (month and day), time, and altitude.
Current Session Record
The Current Session Record contains the data described below. The contents
of this record are updated at regular intervals while a save session is in
progress.
Data
High Altitude
(MAX)
Low Altitude
(MIN)
Total Ascent
(ASC)
Total Descent
(DSC)
Description
Highest altitude reached during the current session.
Lowest altitude reached during the current session.
Total cumulative ascent during the current session.
Total cumulative descent during the current session.
• The maximum total ascent and total descent value is 99,995 meters
(or 99,980 feet). Each value reverts to zero after the maximum is reached.
How current session record data is updated
The following operation is performed simultaneously with the operation
described under “How periodic records are created and saved”.
a. When you hold down D to start a save session, the watch will clear data
that is already stored in the current session record.
b. The watch will measure altitude and calculate data as described below,
and update the current session record accordingly. Note that measurement
and saves depend on whether or not the watch is in the Altimeter Mode.
• In the Altimeter Mode
Altitude Measurement
First 3 minutes
After 3 minutes
Type
Updated
every
5
Updated
every 5 seconds
0’05
seconds
Updated every 5 Updated every 2 minutes, and
2’00
seconds
at 00, 15, 30, 45 of each hour
• Outside the Altimeter Mode
The measurements are taken and session data is updated every two
minutes, and at 00, 15, 30, 45 of each hour.
Other Altimeter Mode Features
This section explains other features and settings that are available in the
Altimeter Mode. Note that all of the information in this section applies to all
types of Altimeter Mode measurements, unless specifically indicated
otherwise.
Specifying a Reference Altitude
After you specify a reference altitude, the watch adjusts its air-pressure-toaltitude conversion calculation accordingly. The altitude measurements
produced by this watch are subject to error caused by changes in air
pressure. Because of this, we recommend that you update the reference
altitude whenever one is available during your climb.
To set a reference altitude
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1. Press D to enter the Altimeter Mode.
2. Hold down D for about one second until REC
flashes on the display, which indicates that a
new session is in progress.
• After you start a save session, the watch
starts saving periodic records every 15
minutes. See “Periodic Records” for more
information.
Periodic records of up to 40 altitude readings are taken during a save session.
• You can use the Data Recall Mode to view these records.
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1. In the Altimeter Mode, hold down A for about
two seconds until either OFF or the current
reference altitude value starts to flash. This is
the setting screen.
2. Press C to display the current altitude
measurement type setting.
• This will cause either 0’05 or 2’00 to flash
on the display.
3. Press D to toggle the altitude measurement
type setting between 0’05 and 2’00.
• 0’05: Readings at five-second intervals for
one hour
• 2’00: Readings at five-second intervals for
the first three minutes followed by twominute intervals for approximately nine
or 10 hours thereafter
4. Press A to exit the setting screen.
Altitude measurement type
Periodic Records
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To select the altitude measurement type
3. To stop an ongoing save session, hold down D for about one second until
REC disappears from the screen.
• The save session also will stop automatically when Periodic Record 40 is
stored.
• You can recall saved records using the Data Recall Mode.
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Notes
• Normally, displayed altitude values are based on the watch’s preset
conversion values. You also can specify a reference altitude, if you want.
See “Specifying a Reference Altitude”.
• Altitude is displayed in units of 5 meters (20 feet).
• The measurement range for altitude is –700 to 10,000 meters (–2,300 to
32,800 feet).
• The measured altitude may be a negative value in cases where there is a
reference altitude value set or because of certain atmospheric conditions.
• The displayed altitude value changes to xxxx meters (or feet) if a
measured altitude falls outside the measurement range. The altitude value
will be displayed again as soon as the measured altitude is within the
allowable range.
• You can change the measurement unit for displayed altitude values to either
meters (m) or feet (ft). See “To select the temperature, altitude, and
barometric pressure units”.
1. In the Altimeter Mode, hold down A for about
two seconds until either OFF or the current
reference altitude value starts to flash. This is
the setting screen.
2. Press D (+) or B (–) to change the current
reference altitude value by 5 meters (or 20 feet).
• You can set the reference altitude within the
range of –10,000 to 10,000 meters (–32,800
to 32,800 feet).
• Pressing D and B at the same time returns to OFF (no reference
altitude), so the watch performs air pressure to altitude conversions
based on preset data only.
3. Press A to exit the setting screen.
5
Operation Guide 3143
Altitude
The altitude graph shows Altimeter Mode
measurement results.
• The vertical axis of the graph represents
altitude, and each dot stands for 10 meters (40
feet).
Altitude Differential
You also can use the Altimeter Mode to measure the altitude differential
from a specific reference altitude. Specifying the point is as simple as
pressing a single button to reset the current reference altitude value to zero.
Altitude differential measurement is performed each time the watch performs
an altitude measurement.
• You can perform altitude differential measurement only whenever you select
format number 3 or 4 as the Altimeter Mode display format.
• The range of the altitude differential value is –3,000 meters (–9,980 feet) to
3,000 meters (9,980 feet).
• “-- -- --” is displayed in place of the altitude differential value whenever the
measured value is outside the allowable range.
• The watch will assume that the reference altitude setting is zero for the first
measurement after you exit the Altimeter Mode setting screen.
• See “Using Altitude Differential Measurement While Mountain Climbing or
Hiking” for some real-life examples of how to use this feature.
To reset the altitude differential value to zero
Altitude differential
In the Altimeter Mode, press A.
• This will start altitude measurement. The
altitude differential value will show 0 after
measurement is complete.
• You must perform altitude differential
measurement whenever you select format
number 3 or 4 as the Altimeter Mode display
format.
Using Altitude Differential Measurement While Mountain
Climbing or Hiking
After you zero reset the reference altitude value at a particular location while
mountain climbing or hiking, you easily can measure the change in the
altitude between that point and another point.
To use altitude differential measurement
Destination
altitude
Current
location
Altitude differential
Altitude
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 difference in altitude between
your current location and your destination.
3. In the Altimeter Mode, press A to take an
altitude reading.
• This causes the altitude differential value to
appear at the top of the display.
4. While monitoring the difference between the
altitude you found on the map and the altitude
differential value displayed by the watch,
advance towards your destination.
• If you determined that the difference between
the map altitude and your current location is
+80 meters, for example, you are approaching
your destination when the displayed altitude
differential value shows +80 meters.
Recalling Altitude Data
You can use the Data Recall Mode to the view periodic records and current
session record that are in watch memory. Altitude data records are created
and stored in the Altimeter Mode.
Data Screens
The following explains the contents of each of the screens that appear in the
Data Recall Mode.
Periodic
record
indicator
Alternates at
1-second intervals.
Measurement date
(Month – Day)
▲
Time
• The horizontal axis represents time, and the flashing dot in the rightmost
column indicates the latest measurement result. For the first three minutes,
each dot represents five seconds. After that, each dot represents two
minutes.
• An out of range measurement result or a measurement error will cause the
column of dots for that measurement to be blank (skipped).
Note
• While the periodic record, high altitude, or low altitude screen is displayed,
the bottom part of the display alternates between the measurement date
(month and day) and measurement time, at 1-second intervals.
▲
Altitude graph
Measurement time
(Hour : Minute)
Altitude
Periodic Records
Periodic records show only data for the last save session performed with the
watch. There can be up to 40 periodic records in memory.
Current Session Record Contents
The following data items show the contents of the current session record.
Data Type
High Altitude
Screen Name
Low Altitude
MIN
Total Ascent
ASC
Total Descent
DSC
MAX
Description
Highest altitude reached during the
recalled session.
Lowest altitude reached during the recalled
session.
Total cumulative ascent during the recalled
session.
Total cumulative descent during the
recalled session.
To view periodic records and current session record contents
1. Enter the Data Recall Mode.
2. Use D and B to scroll through the data and display the one you want.
Periodic
records
Current session
record
D
REC(1)
REC(2)
REC(40)
MAX
MIN
ASC
B
DSC
• To view the current session record contents, use D to scroll forward
past the last periodic record (which will display the current session
record MAX screen), or B to scroll back past the first periodic record
(to the DSC screen).
3. After you are finished viewing data, press C to exit the Data Recall Mode.
• Dashes (xxxx) will be displayed if there is no corresponding data due to
error, etc. In such cases, total ascent (ASC) and total descent ( DSC)
values will show zero.
• When the total ascent (ASC) or total descent ( DSC) exceeds 99,995
meters (or 99,980 feet), the applicable value will restart from zero.
World Time
Current time in the zone
of the selected city code
City code
World Time displays the current time in 30 cities
(29 time zones) around the world.
• If the current time shown for a city is wrong,
check your Home City time settings and make
the necessary changes.
• For full information on city codes, see the “City
Code Table”.
• All of the operations in this section are
performed in the World Time Mode, which you
enter by pressing C.
To view the time in another city
Timekeeping
Mode time
In the World Time Mode, use D (east) and B
(west) to scroll through city codes (time zones).
• When the currently selected time zone is one
that includes mostly ocean, a value indicating
the zone’s Greenwich Mean Time differential
appears in place of a city code.
To toggle a city code time between Standard Time and Daylight
Saving Time
DST indicator
1. In the World Time Mode, use D (east) and B
(west) to display the city code (time zone)
whose Standard Time/Daylight Saving Time
setting you want to change.
2. Hold down A to toggle between Daylight
Saving Time (DST indicator displayed) and
Standard Time (DST indicator not displayed).
• The DST indicator appears on the display
whenever you display a city code for which
Daylight Saving Time is turned on.
• You cannot toggle between Daylight Saving Time and Standard Time if the
displayed city code is GMT.
• Note that the DST/Standard Time setting affects only the currently
displayed city code. Other city codes are not affected.
6
Operation Guide 3143
Stopwatch
The stopwatch lets you measure elapsed time,
split times, and two finishes.
• The display range of the stopwatch 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
performed in the Stopwatch Mode, which you
enter by pressing C.
Hours
1/100 second
Minutes
Seconds
Current time
To measure times with the stopwatch
Elapsed Time
JD
D
Start
Stop
JD
Re-start
Split Time
JB
JB
D
Start
Split
Split release
(SPL displayed)
Two Finishes
JB
JD
D
Start
Split
Stop
First runner Second runner
finishes.
finishes.
Display time
of first runner.
D
Stop
J
D
Stop
J
B
Clear
J
B
Clear
D
ALM-1
ALM-2
ALM-3
ALM-5
ALM-4
B
Alarm on indicator
SIG
2. Hold down A until the hour setting of the alarm time start to flash, which
indicates the setting screen.
• This automatically turns on the alarm.
3. Press C to move the flashing between the hour and minute settings.
4. While a setting is flashing, use D (+) and B (–) to change it.
• When setting the alarm time using the 12-hour format, take care to set
the time correctly as a.m. (no indicator) or p.m. (P indicator).
5. Press A to exit the setting screen.
Alarm Operation
The alarm sounds in all modes at the preset time for about 10 seconds, or
until you stop it by pressing any button.
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
JB
Split release
Display time of
second runner.
B
Clear
J
You can set the countdown timer within a range
of one minute to 24 hours. An alarm sounds
when the countdown reaches zero.
• All of the operations in this section are
performed in the Countdown Timer Mode,
which you enter by pressing C.
To set the countdown start time
Seconds
Minutes
Current time
1. In the Alarm Mode, use D and B to scroll
through the alarm screens until the one whose
time you want to set is displayed.
J
Countdown Timer
Hours
To set an alarm time
1. While the countdown start time is on the
display in the Countdown Timer Mode, hold
down A until the hour setting of the
countdown start time starts to flash, which
indicates the setting screen.
• If the countdown start time is not displayed,
use the procedure under “To use the
countdown timer” to display it.
To turn an alarm and the Hourly Time Signal on and off
1. In the Alarm Mode, use D and B to select an alarm or the Hourly Time
Signal.
2. When the alarm or the Hourly Time Signal you want is selected, press A
to turn it on and off.
Indicates alarm is ON.
Indicates Hourly Time Signal is ON.
• The alarm on indicator ( ) and the Hourly Time Signal on indicator ( ) are
shown on the display in all modes while these functions are turned on.
• If any alarm is on, the alarm on indicator is shown on the display in all
modes.
Illumination
Auto light switch
on indicator
The display of the watch is illuminated using an
EL (electro-luminescent) panel for easy reading
in the dark. The watch’s auto light switch turns on
illumination automatically when you angle the
watch towards your face.
• The auto light switch must be turned on
(indicated by the auto light switch on indicator)
for it to operate.
• See “Illumination Precautions” for other
important information about using illumination.
To turn on illumination manually
2. Press C to move the flashing between the hour and minute settings.
3. Use D (+) and B (–) to change the flashing item.
• To set the starting value of the countdown time to 24 hours, set
OO’OO.
4. Press A to exit the setting screen.
Press L in any mode to illuminate the display for about one second.
• The above operation turns on illumination regardless of the current auto
light switch setting.
• Illumination is disabled during time calibration signal reception, and while
configuring sensor measurement mode settings.
To use the countdown timer
About the Auto Light Switch
Alarm number
Alarm time
(Hour : Minutes)
Moving the watch to a position that is parallel to the ground and then tilting
it towards you more than 40 degrees causes illumination to turn on.
• Wear the watch on the outside of your wrist.
Parallel to
ground
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More than
40°
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Current time
You can set five independent daily alarms. When
an alarm is turned on, the alarm tone sounds
when the alarm time is reached.
You also can turn on an Hourly Time Signal,
which will cause the watch to beep twice every
hour on the hour.
• The alarm number (ALM-1 through
ALM-5) indicates an alarm screen. SIG is
shown when the Hourly Time Signal screen is
on the display.
• When you enter the Alarm Mode, the data you
were viewing when you last exited the mode
appears first.
• All of the operations in this section are
performed in the Alarm Mode, which you enter
by pressing C.
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Alarms
Turning on the auto light switch causes illumination to turn on, whenever you
position your wrist as described below in any mode.
Note that this watch features a “Full Auto EL Light”, so the auto light switch
operates only when available light is below a certain level. It does not
illuminate the display under bright light.
• The auto light switch is always disabled, regardless of its on/off setting,
when any one of the following conditions exists.
While an alarm is sounding
During sensor measurement
While a receive operation is in progress in the Receive Mode
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Press D while in the Countdown Timer Mode to start the countdown timer.
• When the end of the countdown is reached, the alarm sounds for five
seconds or until you stop it by pressing any button. The countdown time is
reset to its starting value automatically when the alarm sounds.
• Press D while a countdown operation is in progress to pause it. Press D
again to resume the countdown.
• To stop a countdown operation completely, first pause it (by pressing D)
and then press B. This returns the countdown time to its starting value.
7
Operation Guide 3143
Warning!
• Always make sure you are in a safe place whenever you are reading
the display of 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, hold down L for about three seconds to toggle the
auto light switch on (A.EL displayed) and off (A.EL not displayed).
• The auto light switch on indicator (A.EL) is on the display in all modes while
the auto light switch is turned on.
• The auto light switch turns off automatically whenever battery power drops
to Level 4.
• Illumination may not turn on right away if you raise the watch to your face
while a barometric pressure or altitude measurement operation is in
progress.
Questions & Answers
Question: How can the barometer be used to predict weather?
Answer: Barometric pressure indicates changes in the atmosphere, and by
monitoring these changes you can predict the weather with
reasonable accuracy. Rising atmospheric pressure indicates good
weather, while falling pressure indicates deteriorating weather
conditions.
The barometric pressures that you see in the newspaper and on the
TV weather report are measurements corrected to values measured
at 0 m sea level.
Question: How does the altimeter work?
Answer: Generally, air pressure and temperature decrease as altitude
increases. This watch bases its altitude measurements on
International Standard Atmosphere (ISA) values stipulated by the
International Civil Aviation Organization (ICAO). These values define
relationships between altitude, air pressure, and temperature.
3500 m
3000 m
2500 m
2000 m
1500 m
1000 m
0m
500 m
14000 ft
12000 ft
10000 ft
8000 ft
6000 ft
4000 ft
2000 ft
0 ft
Temperature
616 hPa
About 8 hPa per 100 m
–11°C
701 hPa
About 9 hPa per 100 m
–4.5°C
795 hPa
About 10 hPa per 100 m
2°C
899 hPa
About 11 hPa per 100 m
8.5°C
1013 hPa
About 12 hPa per 100 m
15°C
19.03 inHg
About 0.15 inHg per 200 ft
16.2°F
22.23 inHg
About 0.17 inHg per 200 ft
30.5°F
25.84 inHg
About 0.192 inHg per 200 ft 44.7°F
29.92 inHg
About 6.5°C
per 1000 m
About 0.21 inHg per 200 ft
About 3.6°F
per 1000 ft
59.0°F
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.
• 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.
• 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 and Recover Indicator
The battery power indicator on the display shows you the current status of the
rechargeable battery’s power.
Source: International Civil Aviation Organization
Level
1
2
3
Battery power
indicator
ll l l l l lll
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ll
ll l
4
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c
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Rooftop at an altitude of
230 m above sea level
(absolute altitude)
Sea Level
All functions enabled.
All functions enabled.
Auto and manual receive,
illumination, beeper, and
sensor operation disabled.
(Charge Soon Alert)
ll
Height of building 130 m
(relative altitude)
Function Status
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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.
Battery Power
Indicator
ll
• Note that the following conditions will prevent you from obtaining accurate
altitude readings:
When air pressure changes because of changes in the weather
Extreme temperature changes
When the watch itself is subjected to strong impact
Solar cell
Important!
ll
4000 m
Air Pressure
Power Supply
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Altitude
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.
5
Except for timekeeping and
the C (charge) indicator, all
functions and display
indicators disabled.
All functions disabled.
• 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 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.
8
Operation Guide 3143
Timekeeping
Recover indicator
• Performing multiple sensor, illumination, or
beeper operations during a short period may
cause R (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
R (recover) will disappear, indicating that the
above functions are enabled again.
Day of the Week/Day Screen
Date Screen
Day of week
Barometric Pressure
Graph Screen
Barometric
pressure
Day
graph
Month – Day
Day
PM indicator
Year
Press A.
DST
indicator
Hour : Minute
▲
▲
▲
• Even if battery power is at Level 1 or Level 2, the 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 R (recover) on
the display.
• If R (recover) appears frequently, it probably means that remaining battery
power is low. Leave the watch in bright light to allow it to charge.
Use the Timekeeping Mode to set and view the current time and date.
• Pressing A while in the Timekeeping Mode will cycle through the
Timekeeping Mode display formats as shown below.
Second
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.
• 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.
• 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
• 1 hour of altimeter measurement at 5-second interval, once per month
• 2 hours of barometric pressure measurement per day
• 6 minutes of signal reception per day
• Stable operation is promoted by frequent exposure to light.
This watch is preset with a number of city codes, each of which represents
the time zone where that city is located. When setting the time, it is important
that you first select the correct city code for your Home City (the city where
you normally use the watch). If your location is not included in the preset city
codes, select the preset city code that is in the same time zone as your
location.
• Note that all of the times for the World Time Mode city codes are displayed
in accordance with the time and date settings you configure in the
Timekeeping Mode.
To set the time and date manually
1. In the Timekeeping Mode, hold down A until the city code starts to flash,
which indicates the setting screen.
2. Use D and B to select the city code you want.
• Make sure you select your Home City code before changing any other
setting.
• For full information on city codes, see the “City Code Table”.
3. Press C to move the flashing in the sequence shown below to select the
other settings.
City Code
Barometric
Pressure Unit
DST
12/24-Hour
Format
Altitude Unit
Seconds
Temperature
Unit
Hour
Minutes
Power
Saving
Day
Year
Month
• The following steps explain how to configure timekeeping settings only.
4. When the timekeeping setting you want to change is flashing, use D and/
or B to change it as described below.
Screen
To do this:
Change the city code
Do this:
Use D (east) and
B(west).
Press D.
Cycle between Auto DST (AT),
Daylight Saving Time (ON) and
Standard Time (OFF).
Toggle between 12-hour (12H) Press D.
and 24-hour (24H) timekeeping.
Reset the seconds to 00
Press D.
Change the hour or minutes
Use D (+) and B (–).
Change the year, month, or day
▲
▲
▲
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
Exposure Level
(Brightness)
Level 5 Level 4 Level 3
Level 2
Level 1
Read This Before You Set the Time and Date!
Outdoor Sunlight
(50,000 lux)
1 hour
14 hours
4 hours
Sunlight Through a
Window (10,000 lux)
4 hours
67 hours
19 hours
Daylight Through a
Window on a Cloudy
Day (5,000 lux)
6 hours
135 hours
37 hours
Indoor Fluorescent
Lighting (500 lux)
60 hours
--------
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• The above exposure time values are all for reference only. Actual required
exposure times depend on lighting conditions.
5. Press A to exit the setting screen.
Note
• Auto DST (AT) can be selected only while LON, PAR, BER, ATH,
NYC, CHI, DEN, LAX, ANC, HNL, TYO, SEL, or HKG is
selected as the Home City code. For more information, see “Daylight
Saving Time (DST)” below.
• You also need to enter the Timekeeping Mode in order to configure the
following settings.
Power saving on/off (“To turn Power Saving on and off”)
Temperature, altitude, and barometric pressure units (“To select the
temperature, altitude, and barometric pressure units”)
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour
from Standard Time. Remember that not all countries or even local areas use
Daylight Saving Time.
The time calibration signals transmitted from Mainflingen (Germany), Anthorn
(England), or Fort Collins (the United States) include both Standard Time and
DST data. When the Auto DST setting is turned on, the watch switches
between Standard Time and DST (summer time) automatically in accordance
with the signals.
• Though the time calibration signal transmitted by the Fukushima and
Fukuoka/Saga, Japan transmitters include summer time data, summer time
currently is not implemented in Japan (as of 2007).
9
Operation Guide 3143
• The default DST setting is Auto DST (AT) whenever you select LON,
PAR, BER, ATH, NYC, CHI, DEN, LAX, ANC, HNL, or TYO
as your Home City code.
• If you experience problems receiving the time calibration signal in your
area, it probably is best to switch between Standard Time and Daylight
Saving Time (summer time) manually.
To change the Daylight Saving Time (summer time) setting
DST indicator
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1. In the Timekeeping Mode, hold down A until
the city code starts to flash, which indicates
the setting screen.
2. Press C and the DST setting screen appears.
3. Use D to cycle through the DST settings in
the sequence shown below.
Auto DST (AT)
DST off (OFF)
To turn the button operation tone on and off
In any mode (except when a setting screen is on the display), hold down C
not displayed) and off (
to toggle the button operation tone on (
displayed).
• Since the C 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 mute indicator is displayed in all modes when the button operation tone
is turned off.
Power Saving
When turned on, Power Saving enters a sleep
state automatically whenever the watch is left for
a certain period in an area where it is dark. The
table below shows how watch functions are
affected by Power Saving.
• There actually are two sleep state levels:
“display sleep” and “function sleep”.
DST on (ON)
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• If you change your Home City to one that is within the same transmitter
area, the current DST setting will be retained. If you change to a city that is
outside your current transmitter area, DST will be turned off automatically.
Transmitter area city codes
• HKG, SEL, and TYO
• LAX, DEN, CHI, NYC, ANC, and HNL
• LON, PAR, BER, and ATH
• All other city codes
4. When the setting you want is selected, press A to exit the setting screen.
• The DST indicator appears to indicate that Daylight Saving Time is turned on.
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.
Auto Return Features
• The watch returns to the Timekeeping Mode automatically if you do not
perform any button operation for two or three minutes in the Data Recall,
Alarm, Receive, or Barometer/Thermometer Mode.
• If you do not perform any button operation while in the Altimeter Mode, the
watch returns to the Timekeeping Mode automatically after nine or 10 hours
(altitude measurement type: 2’00) or after one hour (altitude measurement
type: 0’05).
• If you leave a screen with flashing digits on the display for two or three
minutes without performing any operation, the watch exits the setting
screen automatically.
Elapsed Time in
Dark
60 to 70 minutes
(Display Sleep)
6 or 7 days
(Function Sleep)
Perform any one of the following operations.
• Move the watch to a well-lit area. It can take up to two seconds for the
display to turn on.
• Press any button.
• Angle the watch towards your face for reading.
To turn Power Saving on and off
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Whenever you have a sensor malfunction, be sure to take the watch to
your original dealer or nearest authorized CASIO distributor as soon as
possible.
Button Operation Tone
The button operation tone sounds any time you
press one of the watch’s buttons. You can turn the
button operation tone on or off as desired.
• Even if you turn off the button operation tone,
the alarm, Hourly Time Signal, and Countdown
Timer Mode alarm all operate normally.
Mute indicator
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Subjecting the watch to strong impact can cause sensor malfunction or
improper contact of internal circuitry. When this happens, ERR (error) will
appear on the display and sensor operations will be disabled.
• If ERR appears while a measurement operation is being performed in a
sensor mode, restart the measurement. If ERR appears on the display
again, it can mean there is something wrong with the sensor.
• Even if battery power is at Level 1 or Level 2, the Barometer/Thermometer
Mode or Altimeter Mode sensor may be disabled if there is not enough
voltage available to power it sufficiently. In this case, ERR will appear on
the display. This does not indicate malfunction, and sensor operation should
resume once battery voltage returns to its normal level.
• If ERR keeps appearing during measurement, it could mean there is a
problem with the applicable sensor.
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Sensor Malfunction Indicator
Display is off, but all functions
are enabled.
All functions are disabled, but
timekeeping is maintained.
To recover from the sleep state
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Scrolling
The D and B buttons are used on the setting screen to scroll through data
on the display. In most cases, holding down these buttons during a scroll
operation scrolls through the data at high speed.
Blank, with
PS flashing
Blank, with
PS not flashing
Operation
• Wearing the watch inside the sleeve of clothing can cause it to enter the
sleep state.
• The watch will not enter the sleep state while the digital time is between
6:00 AM and 9:59 PM. If the watch is already in the sleep state when the
digital time reaches 6:00 AM, however, it will remain in the sleep state.
• The watch will not enter the sleep state while it is in the Barometer/
Thermometer, Altimeter, Receive, Countdown Timer, or Stopwatch Mode.
When the watch is left in any mode besides the Countdown Timer and
Stopwatch Mode, it will return to the Timekeeping Mode automatically after
a specific amount of time. Then if left in the dark for the elapsed time
indicated in the table above, the watch will enter the sleep state.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing
when you last exited the mode appears first.
Display
Power Saving on
indicator
1. In the Timekeeping Mode, hold down A until
the city code starts to flash, which indicates
the setting screen.
2. Press C nine times until the Power Saving
on/off screen appears.
3. Press D to toggle Power Saving on (ON) and
off (OFF).
4. Press A to exit the setting screen.
• The Power Saving on indicator (PS) is on the
display in all modes while Power Saving is
turned on.
Radio-controlled Atomic Timekeeping Precautions
• Strong electrostatic charge can result in the wrong time being set.
• The time calibration signal bounces off the ionosphere. Because of this,
such factors as changes in the reflectivity of the ionosphere, as well as
movement of the ionosphere to higher altitudes due to seasonal
atmospheric changes or the time of day may change the reception range of
the signal and make reception temporarily impossible.
• Even if the time calibration signal is received properly, certain conditions
can cause the time setting to be off by up to one second.
• The current time setting in accordance with the time calibration signal takes
priority over any time settings you make manually.
• The watch is designed to update the date and day of the week
automatically for the period January 1, 2001 to December 31, 2099. Setting
of the date by the time calibration signal cannot be performed starting from
January 1, 2100.
• This watch can receive signals that differentiate between leap years and
non-leap years.
• Though this watch is designed to receive both time data (hour, minutes,
seconds) and date data (year, month, day), certain signal conditions can
limit reception to time data only.
• If you are in an area where proper time calibration signal reception is
impossible, the watch keeps time within ±15 seconds a month at normal
temperature.
• If you have problems with proper time calibration signal reception or if the
time setting is wrong after signal reception, check your current city code,
DST (summer time), and auto receive settings.
• The Home City setting reverts to the initial default of BER (Berlin)
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.
10
Operation Guide 3143
Transmitters
Barometer and Thermometer Precautions
The time calibration signal received by this watch depends on the currently
selected Home City code.
• When a U.S. time zone is selected, the watch receives the time calibration
signal transmitted from the United States (Fort Collins).
• When a Japanese time zone is selected, the watch receives the time
calibration signal transmitted from Japan (Fukushima and Fukuoka/Saga).
• When a European time zone is selected, the watch receives the time
calibration signals transmitted from Germany (Mainflingen) and England
(Anthorn).
• When your Home City is LON, PAR, BER, or ATH (which can receive both
the Anthorn and Mainflingen signals), the watch first tries to pick up the
signal it last successfully received. If that fails, it tries the other signal. For
the first receive after you select your Home City, the watch tries the nearest
signal first (Anthorn for LON, Mainflingen for PAR, BER, and ATH).
• The pressure sensor built into this watch measures changes in air
pressure, which you can then apply to your own weather predictions. It is
not intended for use as a precision instrument in official weather prediction
or reporting applications.
• Sudden temperature changes can affect pressure sensor readings.
• Temperature measurements are affected by your body temperature (while
you are wearing the watch), direct sunlight, and moisture. To achieve a
more accurate temperature measurement, remove the watch from your
wrist, place it in a well ventilated location out of direct sunlight, and wipe all
moisture from the case. It takes approximately 20 to 30 minutes for the
case of the watch to reach the actual surrounding temperature.
• Static electricity or magnetic force can interfere with proper operation of the
auto light switch. If illumination does not turn on, try moving the watch back
to the starting position (parallel with the ground) and then tilt it back towards
your face again. If this does not work, drop your arm all the way down so it
hangs at your side, and then bring it back up again.
• Under certain conditions, illumination does not turn on until about one
second after you turn the face of the watch towards you. This does not
necessarily indicate malfunction.
• You may notice a very faint clicking sound coming from the watch when it is
shaken back and forth. This sound is caused by mechanical operation of
the auto light switch, and does not indicate a problem with the watch.
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To select the temperature, altitude, and barometric pressure units
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• Illumination may not turn on if the face of the
watch is more than 15 degrees above or below
parallel. Make sure that the back of your hand
is parallel to the ground.
• Illumination turns off in about one second, even
if you keep the watch pointed towards your
face.
1. Press B to enter the Barometer/
Thermometer Mode.
2. In the Barometer/Thermometer Mode, hold
down A for about two seconds until either
OFF or the reference temperature value starts
to flash. This is the setting screen.
• If you want to calibrate the barometric
pressure sensor, press C to move the
flashing to the middle display area. This is
the pressure sensor calibration screen.
• At this time, OFF or the barometric pressure
value should be flashing on the display.
3. Use D (+) and B (–) to set the calibration value in the units shown below.
Temperature
0.1°C (0.2°F)
Barometric Pressure 1 hPa (0.05 inHg)
• Pressing D and B at the same time returns to the factory calibration
(OFF).
4. Press A to return to the Barometer/Thermometer Mode screen.
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More than 15 degrees
too high
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• The auto light switch is turned off automatically whenever battery power is
at Level 4.
• Wearing the watch on the inside of your wrist, movement of your arm, or
vibration of your arm can cause frequent activation of the auto light switch
and illumination of the display. To avoid running down the battery, turn off
the auto light switch whenever engaging in activities that might cause
frequent illumination of the display.
• Note that wearing the watch under your sleeve while the auto light switch is
turned on can cause frequent illumination of the display and can run down
the battery.
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Auto light switch precautions
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• The electro-luminescent panel that provides illumination loses power after
very long use.
• Illumination may be hard to see when viewed under direct sunlight.
• Illumination turns off automatically whenever an alarm sounds.
• The watch may emit an audible sound whenever the display is illuminated.
This is due to vibration of the EL panel used for illumination, and does not
indicate malfunction.
• Frequent use of illumination runs down the battery.
To calibrate the pressure sensor and the temperature sensor
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Illumination Precautions
Important!
• Incorrectly 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 watch with those of another
reliable and accurate thermometer.
If adjustment is required, remove the watch from your wrist and wait for 20
or 30 minutes to give the temperature of the watch time to stabilize.
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• Resetting the seconds to 00 while the current count is in the range of 30 to
59 causes the minutes to be increased by 1. In the range of 00 to 29, the
seconds are reset to 00 without changing the minutes.
• With the 12-hour format, the P (PM) indicator appears on the display for
times in the range of noon to 11:59 p.m. and no indicator appears for times
in the range of midnight to 11:59 a.m.
• With the 24-hour format, times are displayed in the range of 0:00 to 23:59,
without any indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping
Mode is applied in all modes.
• The watch’s built-in full automatic calendar makes allowances for different
month lengths and leap years. Once you set the date, there should be no
reason to change it except when battery power drops to Level 5.
• The current time for all city codes in the Timekeeping Mode and World Time
Mode is calculated in accordance with the Greenwich Mean Time (GMT)
differential for each city, based on your Home City time setting.
• GMT differential is calculated by this watch based on Coordinated Universal
Time (UTC) data.
The pressure sensor and temperature sensor built into the watch are
calibrated at the factory and normally require no further adjustment. If you
notice serious errors in the pressure readings and temperature readings
produced by the watch, you can calibrate the sensor to correct the errors.
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Timekeeping
Pressure Sensor and Temperature Sensor Calibration
1. Enter the Timekeeping Mode.
2. Hold down A until the city code starts to
flash, which indicates the setting screen.
3. Use C to select the setting screen for the unit
you want to change.
• See step 3 under “To set the time and date
manually” for information about how to scroll
through setting screens.
4. Press D to change the unit setting.
• Each press of D changes the selected unit setting as shown below.
Temperature
°C and °F
Barometric Pressure
hPa and inHg
Altitude
m and ft
5. After the settings are the way you want, press A to exit the setting screen.
11
Operation Guide 3143
City Code Table
City
Code
–11
HNL
ANC
Honolulu
Anchorage
GMT
Differential
–11.0
–10.0
–09.0
City
LAX
Los Angeles
–08.0
DEN
Denver
–07.0
CHI
Chicago
–06.0
NYC
New York
–05.0
CCS*
RIO
–02
–01
GMT
LON
PAR
BER
ATH
CAI
JRS
JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
BKK
Caracas
Rio De Janeiro
–04.0
–03.0
–02.0
–01.0
HKG
Hong Kong
SEL
TYO
ADL
SYD
NOU
WLG
Seoul
Tokyo
Adelaide
Sydney
Noumea
Wellington
London
Paris
Berlin
Athens
Cairo
Jerusalem
Jeddah
Tehran
Dubai
Kabul
Karachi
Delhi
Dhaka
Yangon
Bangkok
+00.0
+01.0
+02.0
+03.0
+03.5
+04.0
+04.5
+05.0
+05.5
+06.0
+06.5
+07.0
+08.0
+09.0
+09.5
+10.0
+11.0
+12.0
Other major cities in same time zone
Pago Pago
Papeete
Nome
San Francisco, Las Vegas, Vancouver,
Seattle/Tacoma, Dawson City, Tijuana
El Paso, Edmonton, Culiacan
Houston, Dallas/Fort Worth,
New Orleans, Mexico City, Winnipeg
Montreal, Detroit, Miami, Boston,
Panama City, Havana, Lima, Bogota
La Paz, Santiago, Port Of Spain
Sao Paulo, Buenos Aires, Brasilia, Montevideo
Praia
Dublin, Lisbon, Casablanca, Dakar, Abidjan
Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
Frankfurt, Vienna, Stockholm
Helsinki, Istanbul, Beirut, Damascus,
Cape Town
Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
Shiraz
Abu Dhabi, Muscat
Male
Mumbai, Kolkata, Colombo
Jakarta, Phnom Penh, Hanoi, Vientiane
Singapore, Kuala Lumpur, Beijing, Taipei, Manila,
Perth, Ulaanbaatar
Pyongyang
Darwin
Melbourne, Guam, Rabaul
Port Vila
Christchurch, Nadi, Nauru Island
• Based on data as of February 2008.
• The rules governing global times (GMT differential and UTC offset) and
summer time are determined by each individual country.
* In December 2007, Venezuela changed its offset from –4.0 to –4.5. Note,
however, that this watch displays an offset of –4.0 (the old offset) for the
CCS (Caracas, Venezuela) city code.
12
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