Casio MO0602-EA User Manual

MO0602-EA

Operation Guide 3043

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.

Applications

The built-in sensors of this watch measure direction, 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.

Keep the watch exposed to bright light

Bright light

• 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 cause some watch functions to be 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.

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.

Solar cell

Charge

Rechargeable battery

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 only partially covered.

Electrical energy

All

LEVEL 1

functions

LEVEL 2

enabled

LEVEL 3

LEVEL 4

charge

Dis-

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

Some functions disabled

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.

• 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.

• When engaging in mountain climbing or other activities in which losing your way can create a dangerous or life-threatening situation, always be sure to use a second compass to confirm direction readings.

• 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.

About This Manual

(Light)

Warning!

• 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 information can be found in the “Reference” section.

General Guide

• The illustration below shows which buttons you need to press to navigate between modes.

• In any mode, press L to illuminate the display.

World Time

Mode

▲

Stopwatch Mode

▲

Countdown Timer Mode

▲

Data Recall

Mode

▲

Press D.

▲

Alarm Mode

Timekeeping Mode

▲

Receive Mode

▲

• You can use buttons A, B, and C 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.

Press A.

▲

Digital

Compass Mode

Sensor Modes

Press B.

Thermometer Mode

▲

Barometer/

Press C.

Altimeter Mode

▲

Press D.

Operation Guide 3043

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 signal transmitted in Germany (Mainflingen), England (Rugby), and the United States (Fort Collins) and the time calibration signals transmitted in Japan.

Current Time Setting

This watch adjusts its time setting automatically in accordance with a time calibration signal. You can also 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.

• 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.

To specify your Home City

City code

ATH : Athens TYO, SEL : Tokyo, Seoul NYC : New York, Detroit, Miami, Boston, Montreal CHI :

Chicago, Houston, Dallas/Fort Worth, New Orleans, Winnipeg, Mexico City

DEN : Denver, El Paso, Edmonton, Culiacan LAX :Los Angeles, San Francisco, Las Vegas, Seattle/Tacoma,

Vancouver, Tijuana

3. Press E 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 can also 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 “Transmitters”.

• See the maps under “Reception Ranges” for information about the reception ranges of the watch.

• 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. Make sure there are no metal objects nearby.

• The watch should not be facing the wrong way.

• Proper signal reception can be difficult or even impossible under the

conditions listed below.

Inside or among buildings

Inside a vehicle

1. In the Timekeeping Mode, hold down E until

the city code starts to flash, which indicates the setting screen.

2. Press C (east) and D (west) to select the

city code you want to use as your Home City.

LON : London PAR , BER : Paris, Berlin, Milan, Rome,

Near household appliances, office equipment, or a mobile phone

Amsterdam, Hamburg, Frankfurt, Vienna, Barcelona, Madrid

12 o’clock

Near a construction site, airport, or other sources of electrical noise

Near hightension power lines

Among or behind mountains

• 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,

PA R, BER, AT H

TYO, SEL

NYC, CHI, DEN, LAX

Transmitter

Rugby (England) Mainflingen (Germany) Fukushima (Japan) Fukuoka/Saga (Japan) Fort Collins, Colorado

(the United States)

Frequency

60.0 kHz

77.5 kHz

40.0 kHz

60.0 kHz

Reception Ranges

1,500 kilometers

Rugby

Mainflingen

500 kilometers

• Signal reception may not be possible at the distances noted below during

• Even when the watch is within the reception range of the transmitter, signal

• Signal reception is affected by weather, atmospheric conditions, and

• See the information under “Signal Reception Troubleshooting” if you

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.

Note

• When a calibration time is reached, the watch will receive the calibration

• Auto receive of the calibration signal is designed to be performed early in

500 kilometers

Fukuoka/Saga

1,000 kilometers

certain times of the year or day. Radio interference may also cause problems with reception.

Mainflingen (Germany) or Rugby (England) transmitters: 500 kilometers (310 miles) Fort Collins (United States) transmitter: 600 miles (1,000 kilometers) Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)

reception will be impossible if the signal is blocked by mountains or other geological formations between the watch and signal source.

500 kilometers

Fukushima

1,000 kilometers

seasonal changes.

experience problems with time calibration signal reception.

Your Home City

LON Standard Time

Daylight Saving Time

PA R, Standard Time BER

Daylight Saving Time

ATH Standard Time

Daylight Saving Time

TYO, Standard Time SEL

NYC, Standard Time and CHI,

Daylight Saving Time DEN, LAX

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.

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.

Auto Receive Start Times

123456

1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Midnight 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

3:00 am 4:00 am 5:00 am Midnight 1:00 am 2:00 am

4:00 am 5:00 am Midnight 1:00 am 2:00 am 3:00 am

Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am

2,000 miles (3,000 kilometers)

600 miles (1,000 kilometers)

Fort Collins

next day

next day next day

next day next day next day

Operation Guide 3043

• The watch receives the calibration signal for two to seven minutes everyday when the time in the Timekeeping Mode reaches each of the calibration times. Do not perform any button operation within seven 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.

About the Receiving Indicator

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

Weak

(Level 1)

• 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 Level 5 receiving indicator disappears from the display each day when the first auto receive operation of the day is perfor med.

Strong

(Level 5)

To perform manual receive

Receiving

Receive

successful

Receive failed

If there was a previously successful reception

If no reception was successful

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 C for about two seconds until

starts to flash on the display.

• Time calibration signal reception takes from

two to seven 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 The watch will enter the Receive Mode if you press C 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 were successful. The watch will enter the Receive Mode without changing the time setting if you press C 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 C.

GET indicator.

To turn auto receive on and off

1. Enter the Receive Mode.

2. In the Receive Mode, hold down E until the

On/Off

4. Press E to exit the setting screen.

• For information about city codes that support signal receive, see “To specify your Home City”.

status

current auto receive setting ( 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 C to toggle auto receive on (

OFF).

off (

ON or OFF)

ON) and

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 D.

Signal Reception Troubleshooting

Check the following points whenever you experience problems with signal reception.

What you should doProblem Probable Cause

Cannot perform manual receive.

Auto receive is turned on, but the Level 5 receiving indicator does not appear on the display.

Time setting is incorrect following signal reception.

• For further information, see “Important!” under “Time Calibration Signal Reception” and “Radio-controlled Atomic Timekeeping Precautions”.

•The watch is not in the Timekeeping, World Time, or Receive Mode.

•Your current Home City is not one of the following: LON, PAR,

BER, ATH , TYO, SEL, NYC, CHI, DEN, or LAX

•You changed the time setting manually.

•The DST setting was changed manually in the World Time Mode. You pressed a button while signal

•

receive was in progress.

•

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, minutes, seconds) 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.

•If the time is one hour off, the DST setting may be incorrect.

•The Home City code setting is not correct for the area where you are using the watch.

• Enter the Timekeeping, World Time, or Receive Mode and try again.

• Select LON, PAR , BER, ATH , TYO, SEL, NYC, CHI, DEN, or LAX as

your Home City.

• Perform manual signal receive or wait until the next auto signal receive operation is performed.

• Check to make sure the watch is in a location where it can receive the signal.

• Change the DST setting to Auto DST.

• Select the correct Home City code.

Digital Compass

A built-in bearing sensor detects magnetic north and indicates one of 16 directions on the display. Direction readings are performed in the Digital Compass Mode.

• You can calibrate the bearing sensor if you suspect the direction reading is incorrect.

To enter and exit the Digital Compass Mode

12 o’clock position

Timekeeping Mode time

1. While in the Timekeeping Mode or in any of

the other sensor modes, press A to enter the Digital Compass Mode.

• At this time, the watch will start a Digital Compass operation. After about two seconds, letters appear on the display to indicate the direction that the 12 o’clock position of the watch is pointing.

• The direction reading on the display is updated each second for up to 20 seconds, after which measurement stops automatically.

• The ACT indicator flashes on the display while a measurement is in progress.

2. Press D to return to the Timekeeping Mode.

Operation Guide 3043

To take a direction reading

Magnetic north pointer

12 o’clock position

Direction indicator

Angle value (in degrees)

• During measurement, the watch displays an angle value, a direction indicator, and four direction pointers, which change dynamically when the watch is moved. After measurement is complete, the angle value, direction indicator, and four direction pointers are frozen in accordance with the last measurement.

• The ACT indicator flashes on the display while a measurement is in progress.

Note

• Note that taking a measurement while the watch is not horizontal (in relation to the horizon) can result in large measurement error.

• The margin of error for the angle value is ±11 degrees. If the indicated direction is northwest (NW) and 315 degrees, for example, the actual direction can be anywhere from 304 to 326 degrees.

• Any ongoing direction measurement operation is paused temporarily while the watch is performing an alert operation (daily alarm, Hourly Time Signal, countdown timer alarm) or while illumination is turned on (by pressing L). The measurement operation resumes for its remaining duration after the operation that caused it to pause is finished.

• The following table shows the meanings of each of the direction abbreviations that appear on the display.

Direction

• See “Digital Compass Precautions” for other important information about taking direction readings.

270°

W S

180°

Meaning

North

South

SSE

East

West

NNW

1. While the watch is in the Digital Compass Mode, place it on a flat surface, or if you are wearing the watch, make sure that your wrist is horizontal (in relation to the horizon).

2. Point the 12 o’clock position of the watch in the direction you want to measure.

3. Press A to start a Digital Compass measurement operation.

• After about two seconds, the direction that the

12 o’clock position of the watch is pointing appears on the display.

• Also, four pointers appear to indicate magnetic

0°

90°

Direction

north, south, east, and west.

• After the first reading is obtained, the watch

continues to take direction readings

automatically each second, for up to 20

ENE

seconds.

NNE

ESE

SSW

WNW

Meaning

northeast

southeast

southwest

northwest

North-

East-

South-

West-

Direction

Meaning

Northeast

Southeast

Southwest

Northwest

Direction

ENE

SSE

WSW

NNW

Meaning

East-

northeast

South-

southeast

West-

southwest

North-

northwest

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

Barometric pressure

Temperature

• The displayed barometric pressure value changes to

• Temperature is displayed in units of 0.1°C (or 0.2°F).

Barometric pressure graph

Pressure differential pointer

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.

Pressing B in the Timekeeping Mode or in any of other sensor modes 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).

hPa (or inHg) if

xxxx

• The displayed temperature value changes to 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, barometric pressure, and altitude 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 30 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.

°C (or °F) if a measured

xxx

A rising graph generally means improving weather.

A falling graph generally means deteriorating weather.

Note that if there are sudden changes in weather 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. 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 ±15 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 can also be read in inHg units as shown in the illustration.

inHg values

Barometric pressure differential pointer

Points to 9 o’clock for differentials outside the range of ±15 hPa/ ±0.44 inHg.

Pressure differential examples in the illustration are indicated in 10 hPa/0.3 inHg steps.

hPa values

Not visible on the display.

Current pressure greater than most recent measured pressure

Current pressure less than most recent measured pressure

Operation Guide 3043

To turn display of the barometric pressure differential pointer on and off

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.

• The ACT indicator flashes on the display while a measurement is in progress.

• You can also perform a barometric pressure and temperature measurement at any time by pressing B in the Barometer/Thermometer Mode.

1. In the Barometer/Thermometer Mode, hold

down E until display area.

2. Release E, and wait for four or five more

seconds until either reference temperature value (if set) starts to flash. This is the setting screen.

3. Press D twice to display the pointer on/off

setting screen.

4. Press C to toggle display of the barometric

pressure differential pointer on (

OFF

and off (

5. When the setting is the way you want, press

E to exit the setting screen.

appears in the upper

SET

OFF

displayed).

or the current

displayed)

Altimeter

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 can also 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 and an altitude alarm.

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 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 conver ted 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.

• To determine the height of a tall building, for example, specify zero for the reference altitude value while you are on the ground floor. Then when you go to a higher floor, the altitude displayed by the watch will indicate the height from the ground floor. Note that you may not be able to get a good reading if the building is pressurized or air-conditioned.

• When mountain climbing, you can set the reference value in accordance with a marker along the way or altitude information from a map. After that, the altitude readings produced by the watch will be more accurate than they would without a reference altitude.

400

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.

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

1. Press C in the Timekeeping Mode or in any

Current altitude

Altitude graph

Altitude differential

Timekeeping Mode time

• If you want to restart the altitude measurement operation at any point,

3. To stop the altitude measurement operation, press D to exit the Altimeter

Mode.

Notes

• Normally, displayed altitude values are based on the watch’s preset conversion values. You can also 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 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, barometric pressure, and altitude units”.

Saving Altitude Data

The save operation described in this section creates records of altitude measurement data in watch memory. When you start a save session, measurement continues to be performed (indicated by the REC indicator flashing on the display) even if you change to another mode.

Types of Altitude Data Records

A save session stores three types of altitude records in memory: periodic records (up to 40), a current session record, and a historical record.

Periodic Records

A save session creates up to 40 altitude records at fixed intervals and stores them in memory. You can use the Data Recall Mode to view these records.

How periodic records are created and saved Note

The following operation is performed simultaneously with the operation described under “How current session record data is updated”.

1. When you hold down C to start a save session, the watch creates

Periodic Record 1, which contains the current date (month and day), time, and altitude.

• Starting a new save session clears any periodic records currently in

2. Next, the watch takes readings for Periodic Record 2 up to Periodic Record

40 at minute 00, 15, 30, and 45 of each hour.

3. Altitude measurement and periodic record storage stop automatically after

Periodic Record 40 is stored.

• You can also stop the save session manually by holding down C again. This will create a final sequential periodic record, which contains the current date (month and day), time, and altitude.

pointer

press C.

memory and starts a new set of periodic records.

of the other sensor modes 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. Leave the watch in the Altimeter Mode if you want the displayed altitude value and the altitude graph contents to be updated at regular intervals.

• During the first three minutes after entering

the Altimeter Mode, the ACT indicator will flash on the display as measurements are taken every five seconds. After that, the ACT indicator will disappear and measurements will be taken every two minutes.

xxxxx meters (or feet) if a

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