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Casio GDF100-1A Operation Manual

Casio gdf100-1a: user guide
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MO1012-EA
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-2
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-4
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-6
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-8
Operation Guide 3255
Warning !
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.
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.
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-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
Mode Reference Guide
Your watch has 7 "modes". The mode you should select depends on what you want to do.
To do this:
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
View the barometric pressure and temperature at your
current location
View the altitude at your current location
Determine the altitude differential between two locations
(reference point and current location)
View the current time in one of 48 cities (31 time zones)
around the globe
Use the stopwatch to measure elapsed time
Use the countdown timer
Set an alarm time
ENGLISH
E-1
E-3
E-5
E-7
Enter this mode:
See:
Timekeeping Mode
E-13
Barometer/
E-21
Thermometer Mode
Altimeter Mode
E-28
World Time Mode
E-40
Stopwatch Mode
E-42
Countdown Timer Mode
E-44
Alarm Mode
E-47
E-9

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  Summary of Contents for Casio GDF100-1A

  • Page 1: Mode Reference Guide

    E-44 Using the Countdown Timer E-47 Using the Alarm Mode Reference Guide Your watch has 7 “modes”. The mode you should select depends on what you want to do. To do this: • View the current time and date in the Home City •...
  • Page 2: Timekeeping

    The DST indicator appears to indicate that Daylight Saving Time is turned on. Note • After you specify a city code, the watch will use UTC* offsets in the World Time Mode to calculate the current time for other time zones based on the current time in your Home City.
  • Page 3: Barometer/Thermometer

    – Compare the readings produced by the watch with those of another reliable and accurate thermometer. hPa values hPa values – If adjustment is required, remove the watch from your wrist and wait for 20 or 30 inHg values inHg values minutes to give the temperature of the watch time to stabilize.
  • Page 4: Specifying Temperature/Barometric Pressure/Altitude Units

    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.
  • Page 5: Using The Alarm

    Timekeeping Mode. You can also turn on an Hourly Time Signal, which will cause the watch to beep twice every hour on the hour. To enter the Alarm Mode to select the Alarm Mode (ALM) as shown on page E-10.
  • Page 6: Illumination

    SET Hold disappears and the city code starts to fl ash. 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. •...
  • Page 7: City Code Table

    • 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. Battery: One lithium battery (Type: CR2025) Approximate battery operating time: 5 years under the following conditions: •...

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