Operation Guide 3134 3205
14
To recover from the sleep state
P erform any one of the f ollowing operations.
•Mov e the watch to a well-lit area. It can take up to two seconds for the
display to turn on.
•Press any b utton.
•Angle the watch tow ards your face f or reading.
To turn Power Saving on and off
1. In the Timekeeping Mode, hold do wn E until
the city code star ts to flash, which indicates
the setting screen.
2. Press D nine times until the P ower Saving
on/off screen appears.
3. Press A to toggle P ower Sa ving on (ON ) and
off (OFF ).
4. Press E to e xit the setting screen.
•The P ower Sa ving on indicator (PS ) is on the
displa y in all modes while Po wer Saving is
turned on.
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P ower Saving on
indicator
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
mov ement of the ionosphere to higher altitudes due to seasonal
atmospheric changes or the time of day ma y change the reception range of
the signal and make reception temporarily impossible .
•Even if the time calibr ation signal is received properly , cer tain 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 tak es
priority over any time settings y ou make manually .
•
The watch is designed to update the date and da y of the week automatically
for the period J anuary 1, 2000 to December 31, 2099. Setting of the date b y
the time calibr ation signal cannot be performed starting from Jan uar y 1, 2100.
•This watch can receive signals that diff erentiate between leap years and
non-leap years .
•Though this watch is designed to receiv e both time data (hour, min ute,
second) 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 calibr ation signal reception is
impossible, the w atch keeps the time with the precision noted in
“Specifications ”.
•If you hav e 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 re ver ts to the initial default of TYO (T okyo)
whenev er the battery power lev el drops to Lev el 5 or when you hav e the
rechargeable battery replaced. If this happens, change the Home City to
the setting you want.
T ransmitters
The time calibration signal received b y 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 (F or t Collins).
•When a Japanese time z one is selected, the watch receives the time
calibration signal transmitted from J apan (Fukushima and Fukuoka/Saga).
•
When a European time zone is selected, the w atch receives the time calibration
signals transmitted from Ger many (Mainflingen) and England (Anthor n).
•When your Home City is LON , PA R , BER , or AT H (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 y ou select your Home City , the watch tries the nearest
signal first (Anthorn for LON , Mainflingen for PA R , BER, and AT H).
Timekeeping
•Resetting the seconds to 00 while the current count is in the range of 30 to
59 causes the minutes to be increased b y 1. In the range of 00 to 29, the
seconds are reset to 00 without changing the minutes.
•With the 12-hour format, the P (PM) indicator appears on the displa y for
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 24-hour format, times are display ed in the range of 0:00 to 23:59,
without any indicator .
•The 12-hour/24-hour timekeeping f or mat you select in the Timekeeping
Mode is applied in all modes.
•The watch ’s built-in full automatic calendar makes allo wances f or different
month lengths and leap years . Once you set the date, there should be no
reason to change it except when battery power drops to Le vel 5.
•The times f or the Timek eeping Mode and all the city codes of the W or ld
Time Mode are calculated in accordance with each city’s UTC offset.
•The UTC offset is a value that indicates the time diff erence between a
reference point in Greenwich, England and the time z one where a city is
located.
Illumination Precautions
•The electro-luminescent panel that provides illumination loses pow er after
very long use.
•Illumination may be hard to see when vie wed under direct sunlight.
•Illumination turns off automatically whenever an alarm sounds.
•The watch may emit an audib le sound whenever the displa y is illuminated.
This is due to vibration of the EL panel used f or illumination, and does not
indicate malfunction.
•F requent use of illumination runs down the batter y .
Auto light s witch precautions
•The auto light switch is turned off automatically whene ver battery power is
at Lev el 4.
•Wearing the watch on the inside of y our wrist, movement of your arm, or
vibration of your arm can cause frequent activation of the auto light s witch
and illumination of the display . T o av oid running down the battery , turn off
the auto light switch whene ver engaging in activities that might cause
frequent illumination of the display .
•Note that wearing the watch under your slee ve while the auto light s witch is
turned on can cause frequent illumination of the display and can run down
the battery .
•Illumination may not turn on if the f ace of the
watch is more than 15 degrees abo ve or below
parallel. Make sure that the back of your hand
is parallel to the ground.
•Illumination turns off in about one second, even
if you k eep the watch pointed towards y our
face.
•Static electricity or magnetic force can interf ere with proper operation of the
auto light switch. If illumination does not turn on, tr y moving the watch back
to the starting position (parallel with the ground) and then tilt it back towards
your f ace again. If this does not work, drop your arm all the way do wn so it
hangs at your side, and then bring it back up again.
More than 15 degrees
too high
•Under certain conditions, illumination does not tur n on until about one
second after you turn the face of the watch to wards you. This does not
necessarily indicate malfunction.
•Y ou may notice a v er y faint clic king sound coming from the watch when it is
shaken bac k and forth. This sound is caused b y mechanical operation of
the auto light switch, and does not indicate a prob lem 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 y our own weather predictions . It is
not intended for use as a precision instrument in official weather prediction
or repor ting applications.
•Sudden temperature changes can affect pressure sensor readings .
•T emperature measurements are affected by your body temper ature (while
you are wearing the watch), direct sunlight, and moisture . T o achiev e a
more accurate temperature measurement, remov e 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 min utes for the
case of the watch to reach the actual surrounding temperature .
Pressure Sensor and T emperature Sensor Calibration
The pressure sensor and temperature sensor built into the w atch are
calibrated at the f actor y and normally require no fur ther adjustment. If y ou
notice serious errors in the pressure readings and temperature readings
produced by the watch, y ou can calibrate the sensor to correct the errors.
Important!
•Incorrectly calibrating the barometric pressure sensor can result in incorrect
readings. Before performing the calibration procedure, compare the
readings produced by the watch with those of another reliab le and accurate
barometer .
•Incorrectly calibrating the temperature sensor can result in incorrect
readings. Carefully read the following bef ore doing anything.
Compare the readings produced by the w atch with those of another
reliable and accurate thermometer .
If adjustment is required, remov e the watch from your wrist and wait f or 20
or 30 minutes to give the temper ature of the watch time to stabilize .
To calibrate the pressure sensor and the temperature sensor
1. Press B to enter the Barometer/
Thermometer Mode.
2. In the Barometer/Ther mometer Mode, hold
down E f or about two seconds until either
OFF or the reference temperature v alue star ts
to flash. This is the setting screen.
•If you want to calibr ate the barometric
pressure sensor , press D to mov e the
flashing to the middle display area. This is
the pressure sensor calibration screen.
•At this time, OFF or the barometric pressure
v alue should be flashing on the display .
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•The letters “UTC ” is the abbre viation for “Universal Time Coordinated ”,
which is the world-wide scientific standard of timekeeping. It is based upon
carefully maintained atomic (cesium) clocks that k eep time accurately to
within microseconds. Leap seconds are added or subtracted as necessary
to keep UTC in sync with the Earth’s rotation.