Casio 3439 Operation Manual Download Page 1

MO1503-EA

© 2015 CASIO COMPUTER CO., LTD.

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ENGLISH

Congratulations upon your selection of this CASIO watch.

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.

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.

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

 Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss 

suffered by you or any third party arising through the use of this product or its malfunction.

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Important!

 The watch’s Altimeter Mode calculates and displays relative altitude based on barometric pressure 

readings produced by its pressure sensor. This means that readings taken at different times at the 
same location may produce different altitude values due to changes in barometric pressure. Also note 
that the value displayed by the watch may be different from the actual elevation and/or sea level 
elevation indicated for the area where you are located.

 When using the altimeter of this watch for mountain climbing or other activities, it is highly 

recommended that you check a map, local altitude indications, or some other source for your current 
correct altitude and regularly calibrate the altimeter with the latest information. For more information, 
see “To specify a reference altitude value” (page E-47).

 Whenever you use the digital compass of this watch for serious trekking, mountain climbing, or other 

activities, be sure always to take along another compass to confi rm readings. If the readings produced 
by the digital compass of this watch are different from those of the other compass, perform bidirectional 
calibration of the digital compass to ensure more accurate readings.

 Direction readings and digital compass calibration will not be possible if the watch is in the vicinity of a 

permanent magnet (magnetic accessory, etc.), metal objects, high-voltage wires, aerial wires, or 
electrical household appliances (TV, computer, cellphone, etc.)

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About This Manual

 Depending on the model of your watch, digital display text appears 

either as dark fi gures on a light background, or light fi gures on a dark 
background. All examples in this manual are shown using dark fi gures 
on a light background.

 Button operations are indicated using the letters shown in the 

illustration.

 Note that the product illustrations in this manual are intended for 

reference only, and so the actual product may appear somewhat 
different than depicted by an illustration.

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Things to check before using the watch

1. Check the Home City and the daylight saving time (DST) setting.

Use the procedure under “To confi gure Home City and summer time settings” (page E-14) to confi gure 
your Home City and daylight saving time settings.

Important!

 World Time Mode and Sunrise/Sunset Mode data depend on correct Home City, time, and date settings 

in the Timekeeping Mode. Make sure you confi gure these settings correctly.

2. Set the current time.

See “Confi guring Current Time and Date Settings” (page E-16).

The watch is now ready for use.

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Contents

About This Manual  …………………………………………………………………………………………… E-3

Things to check before using the watch  ………………………………………………………………… E-4

Mode Reference Guide  ……………………………………………………………………………………… E-9

Timekeeping ………………………………………………………………………………………………… E-13

Confi guring Home City Settings  ………………………………………………………………………… E-14

To confi gure Home City and summer time settings ……………………………………………… E-14

Confi guring Current Time and Date Settings  ………………………………………………………… E-16

To change the current time and date settings  …………………………………………………… E-16

Taking Direction Readings  ……………………………………………………………………………… E-19

To take a direction reading  ………………………………………………………………………… E-19
To perform bidirectional calibration ………………………………………………………………… E-23
To perform magnetic declination correction  ……………………………………………………… E-24
To store a direction angle reading in Bearing Memory  ………………………………………… E-25

Specifying Temperature, Barometric Pressure, and Altitude Display Units  …………………… E-29

To specify temperature, barometric pressure, and altitude display units ……………………… E-29

Taking Barometric Pressure and Temperature Readings  ………………………………………… E-31

To take barometric pressure and temperature readings ………………………………………… E-31
To enable or disable the barometric pressure change alert  …………………………………… E-37
To calibrate the pressure sensor and the temperature sensor  ………………………………… E-38

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Using the Altimeter Mode  ………………………………………………………………………………… E-40

To select the altitude screen format  ……………………………………………………………… E-42
To select the altitude auto reading interval  ……………………………………………………… E-43
To take altitude readings  …………………………………………………………………………… E-45
To specify a reference altitude value ……………………………………………………………… E-47
To specify the altitude differential start point ……………………………………………………… E-48
To use the altitude differential value  ……………………………………………………………… E-49
To save a reading manually ………………………………………………………………………… E-50
To start trek log value updating  …………………………………………………………………… E-53
To stop trek log value updating  …………………………………………………………………… E-53

Viewing Altitude Records  ………………………………………………………………………………… E-58

To view altitude records  …………………………………………………………………………… E-58
To delete all manually saved data  ………………………………………………………………… E-62
To delete data in a specifi c memory area ………………………………………………………… E-62

Looking up Sunrise and Sunset Times ………………………………………………………………… E-64

To enter the Sunrise/Sunset Mode ………………………………………………………………… E-64
To view the sunrise/sunset time for a particular date  …………………………………………… E-65
To look up the sunrise and sunset times for a specifi c location ………………………………… E-66

Using the Stopwatch  ……………………………………………………………………………………… E-68

To enter the Stopwatch Mode ……………………………………………………………………… E-68
To perform an elapsed time operation  …………………………………………………………… E-68
To pause at a split time ……………………………………………………………………………… E-68
To measure two fi nishes  …………………………………………………………………………… E-69

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Using the Countdown Timer ……………………………………………………………………………… E-70

To enter the Countdown Timer Mode ……………………………………………………………… E-70
To specify the countdown start time  ……………………………………………………………… E-70
To perform a countdown timer operation  ………………………………………………………… E-71
To stop the alarm  …………………………………………………………………………………… E-71

Using the Alarm  …………………………………………………………………………………………… E-72

To enter the Alarm Mode …………………………………………………………………………… E-72
To set an alarm time ………………………………………………………………………………… E-73
To turn an alarm and the Hourly Time Signal on and off………………………………………… E-74
To stop the alarm  …………………………………………………………………………………… E-75

Checking the Current Time in a Different Time Zone ………………………………………………… E-76

To enter the World Time Mode  …………………………………………………………………… E-76
To view the time in another time zone  …………………………………………………………… E-76
To specify standard time or daylight saving time (DST) for a city ……………………………… E-77

Illumination ………………………………………………………………………………………………… E-78

To turn on illumination manually …………………………………………………………………… E-78
To change the illumination duration  ……………………………………………………………… E-78
To turn the auto light switch on and off  …………………………………………………………… E-80

Button Operation Tone  …………………………………………………………………………………… E-82

To turn the button operation tone on and off ……………………………………………………… E-82

Operation Guide 3439

Summary of Contents for 3439

Page 1: ...check before using the watch 1 Check the Home City and the daylight saving time DST setting Use the procedure under To configure Home City and summer time settings page E 14 to configure your Home City and daylight saving time settings Important World Time Mode and Sunrise Sunset Mode data depend on correct Home City time and date settings in the Timekeeping Mode Make sure you configure these setting...

Page 2: ...Sunset Data Recall Alarm Digital Compass 3 minutes Altimeter 1 hour minimum 12 hours maximum Barometer Thermometer 1 hour Setting screen digital setting flashing 3 minutes 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 Initial Screens When you enter the Data Recall Alarm World Time o...

Page 3: ...way from the source of strong magnetism perform bidirectional calibration and then try taking a reading again For more information refer to To perform bidirectional calibration page E 23 and Location page E 27 Digital Compass Readings When you press C to start digital compass reading operation COMP will initially appear on the display to indicate that a digital compass operation is in progress Aft...

Page 4: ...ding skills and experience are required to determine your current location and destination on a map E 27 Digital Compass Precautions Magnetic North and True North The northerly direction can be expressed either as magnetic north or true north which are different from each other Also it is important to keep in mind that magnetic north moves over time Magnetic north is the north that is indicated by...

Page 5: ...es in pressure If it determines there has been a significant change in pressure it will beep and all of the graphic segments around the periphery of the face will flash as a barometric pressure change alert This means you could start taking barometric pressure readings after reaching a lodge or camp area and then check the watch the next morning for changes in pressure and plan you day s activities ...

Page 6: ... 00 will be flashing in the center display 3 Press A to toggle the altitude auto measurement interval setting between 0 05 and 2 00 4 Press E to exit the setting screen E 44 Taking Altitude Readings Use the procedure below to take basic altitude readings See Using Reference Altitude Values page E 46 for information about how to make altimeter readings more accurate See How does the altimeter work p...

Page 7: ... Mode Cumulative ascent and cumulative descent values are updated whenever there is a difference of at least 15 meters 49 feet from one reading to the next E 52 Trek Log Values While trek log updating is enabled altitude values high altitude low altitude cumulative ascent descent for a particular trek are automatically checked and updated at regular intervals even if you exit the Altimeter Mode Va...

Page 8: ...has been deleted or if there is no corresponding MAX MIN 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 99 999 meters or 327 997 feet the applicable value will restart from zero Note that the watch can display up to five digits only When using feet as the altitude display units altitude values a...

Page 9: ... within following ranges Latitude Range 65 0 S South 65 0 degrees to 0 N to 65 0 N North 65 0 degrees Longitude Range 179 9 W West 179 9 degrees to 0 E to 180 0 E East 180 0 degrees Latitude and longitude values are rounded off to the nearest degree 6 Press E to return to the Timekeeping Mode 7 In the Timekeeping Mode press D Display the location whose sunrise and sunset times you want to view Lat...

Page 10: ...nt time in the currently selected World Time City E 77 To specify standard time or daylight saving time DST for a city 1 In the World Time Mode use A East and C West to scroll through the available city codes Keep scrolling until the city code whose Standard Time Daylight Saving Time setting you want to change is displayed 2 Hold down E for at least two seconds Keep E depressed until the current s...

Page 11: ... from the elevation and or sea level altitude indications in my area Negative sea level altitude values are produced in a location where the indicated elevation is a positive value I can t get correct altitude readings Relative altitude is calculated based on changes in barometric pressure measurement by its pressure sensor This means that barometric pressure changes can cause readings taken at di...

Page 12: ... C 50 F to 104 F North pointer Within 2 digital segments Pressure Sensor Precision Measurement accuracy Within 3hPa 0 1 inHg Altimeter accuracy Within 75m 246 ft Values are guaranteed for a temperature range of 10 C to 40 C 14 F to 104 F Precision is lessened by strong impact to either the watch or the sensor and by temperature extremes E 91 Temperature Sensor Precision 2 C 3 6 F in range of 10 C ...

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