Operation Guide 3147
•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, the watch 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.
To recover from the sleep state
Perform any one of the following operations.
•Move the watch to a
•Press any button.
•Angle the watch towards your face for reading.
To turn Power Saving on and off
Timekeeping
• 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 |
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 |
without any indicator. |
• The |
Mode is applied in all modes. |
• The watch’s |
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 Coordinated Universal Time |
(UTC) for each city, based on your Home City time setting. |
• The UTC offset is a value that indicates the time difference between a |
reference point in Greenwich, England and the time zone where a city is |
located. |
• The letters “UTC” is the abbreviation for “Coordinated Universal Time”, |
llll | |
l | l |
l | l |
l | |
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l | l |
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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 D nine times until the Power Saving on/off screen appears.
3.Press E 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.
which is the |
carefully maintained atomic (cesium) clocks that keep time accurately to |
within microseconds. Leap seconds are added or subtracted as necessary |
to keep UTC in sync with the Earth’s rotation. |
Illumination Precautions
• The | |
| 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. |
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
•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.
Transmitters
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 a China time zone is selected, the watch receives the time calibration signals transmitted from China (Shangqiu City).
•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).
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. |
Auto light switch precautions
•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.
More than 15 degrees | • Illumination may not turn on if the face of the | |
watch is more than 15 degrees above or below | ||
too high | ||
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. |
•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.
Barometer and Thermometer Precautions
•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.
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