G-Shock GDF-100 User Manual
Operation guide 3255
Operation Guide 3255
MO1012-EA
E-1
ENGLISH
Congratulations upon your selection of this CASIO watch.
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.
E-2
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.
•
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.
E-3
About This Manual
•
Depending on the model of your watch, display text
appears either as dark fi gures on a light background, or
light fi gures on a dark background. All sample displays
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.
E-4
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 settings” (page E-14) to confi gure
your Home City and daylight saving time settings.
Important!
Proper World Time Mode data depends 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-17).
The watch is now ready for use.
E-5
Contents
E-3 About
This
Manual
E-4
Things to check before using the watch
E-9 Mode
Reference
Guide
E-13 Timekeeping
E-14 Confi guring Home City Settings
E-14
To confi gure Home City settings
E-16
To change the Daylight Saving Time (summer time) setting
E-17 Confi guring Current Time and Date Settings
E-17
To change the current time and date settings
E-21 Barometer/Thermometer
E-21
To enter and exit the Barometer/Thermometer Mode
E-26
To calibrate the pressure sensor and the temperature sensor
E-6
E-28 Altimeter
E-29
To take an altimeter reading
E-32
To specify a reference altitude value
E-37 Specifying Temperature, Barometric Pressure, and Altitude Units
E-37
To specify temperature, barometric pressure, and altitude units
E-39
Precautions Concerning Simultaneous Measurement of Altitude and
Temperature
E-40 Checking the Current Time in a Different Time Zone
E-40
To enter the World Time Mode
E-40
To view the time in another time zone
E-41
To specify standard time or daylight saving time (DST) for a city
E-7
E-42 Using
the
Stopwatch
E-42
To enter the Stopwatch Mode
E-42
To perform an elapsed time operation
E-42
To pause at a split time
E-43
To measure two fi nishes
E-44 Using the Countdown Timer
E-44
To enter the Countdown Timer Mode
E-44
To specify the countdown start time
E-46
To perform a countdown timer operation
E-46
To stop the alarm
E-47 Using
the
Alarm
E-47
To enter the Alarm Mode
E-48
To set an alarm time
E-49
To test the alarm
E-50
To turn an alarm and the Hourly Time Signal on and off
E-50
To stop the alarm
E-8
E-51 Illumination
E-51
To turn on illumination
E-51
To change the illumination duration
E-53 Button
Operation
Tone
E-53
To turn the button operation tone on and off
E-55 Troubleshooting
E-59 Specifi cations
E-9
Mode Reference Guide
Your watch has 7 “modes”. The mode you should select depends on what you want to do.
To do this:
Enter this mode:
See:
•
View the current time and date in the Home City
•
Confi gure Home City and daylight saving time (DST) settings
•
Confi gure time and date settings
Timekeeping Mode
E-13
View the barometric pressure and temperature at your
current location
Barometer/
Thermometer Mode
E-21
•
View the altitude at your current location
•
Determine the altitude differential between two locations
(reference point and current location)
Altimeter Mode
E-28
View the current time in one of 48 cities (31 time zones)
around the globe
World Time Mode
E-40
Use the stopwatch to measure elapsed time
Stopwatch Mode
E-42
Use the countdown timer
Countdown Timer Mode
E-44
Set an alarm time
Alarm Mode
E-47