USER’ S GUIDE 2471
7
Auto Return Features
• The watch automatically returns to the Timek eeping Mode if you do not
perform any b utton operation for tw o or three minutes in the Digital
Compass Mode or Barometer/Thermometer Mode.
• If you do not perform any b utton operation while in the Altimeter Mode, the
watch automatically returns to the Timekeeping Mode after four or fiv e
hours in the Short Mode, or after nine or 10 hours in the Long Mode.
• If you leav e a screen with flashing digits on the display f or two or three
minutes without perf orming any operation, the watch automatically sav es
anything you ha ve input up to that point and e xits the setting screen.
P ower Saving Function
When turned on, the P ower Saving function automatically puts the watch into
a sleep state whene ver it is left in an area where it is dark for a certain period.
The table belo w shows how watch functions are aff ected by the P o wer Saving
function.
• W earing watch inside the sleeve of clothing can cause it to enter the sleep
state.
Elapsed Time in
Dark
30 to 40 minutes
6 or 7 days
Display
Blank, with
SLEEP flashing
Blank, with
SLEEP not
flashing
Operation
All functions enabled, e xcept for
the displa y
Daily alarm, Hour ly Time Signal,
sensor measurements disabled
To recover from the sleep state
P erform any one of the f ollowing operations.
• Move the w atch to a well-lit area. It can take up to five seconds f or the
display to turn on.
• Press any button.
• Angle the watch towards y our face f or reading.
To turn Power Saving on and off
1. In the Timekeeping Mode, hold do wn A until
the seconds start to flash, which indicates the
setting screen.
2. Press D eight times until the P ower Saving
on/off screen appears.
3. Press E to toggle P ower Saving on (
ON) and
off (
OFF).
4. Press A to e xit the setting screen.
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Data and Setting Scrolling
The E and B buttons are used in v arious modes and setting screens to
scroll through data on the display . In most cases , holding down these b uttons
during a scroll operation scrolls through the data at high speed.
Timekeeping
• Resetting the seconds to
00 00
00 00
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 00
00 00
00 without changing the minutes .
• The year can be set in the range of 2000 to 2039.
• The watch ’s built-in full automatic calendar automatically makes allo wances
for diff erent month lengths and leap years. Once y ou set the date, there
should be no reason to change it except when battery power drops to Le vel
4.
12-hour/24-hour Timekeeping Formats
The 12-hour/24-hour timekeeping f or mat you select in the Timek eeping Mode
is also applied in all modes.
• With the 12-hour format, the P (PM) indicator appears on the display f or
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 displayed in the r ange of 0:00 to 23:59,
without any indicator .
Backlight Precautions
• The electro-luminescent panel that provides illumination loses power after
v er y long use.
• The illumination provided by the bac klight may be hard to see when view ed
under direct sunlight.
• The backlight automatically turns off whenev er an alarm sounds.
• The watch may emit an audib le sound whenev er the display is illuminated.
This is due to vibration of the EL panel used f or illumination, and does not
indicate malfunction.
• F requent use of the backlight runs down the battery .
Auto light s witch precautions
• Wearing the watch on the inside of y our wrist and movement or vibration of
your arm can cause the auto light switch to activ ate and illuminate the
display . T o avoid running down the battery , tur n off the auto light switch
whenev er engaging in activities that might cause frequent illumination of
the display .
• The backlight ma y not light if the f ace of the
watch is more than 15 degrees abo ve or below
parallel. Mak e sure that the back of your hand
is parallel to the ground.
• The backlight turns off in about two seconds ,
ev en if you k eep the watch pointed towards
your f ace.
More than 15 degrees
too high
• Static electricity or magnetic force can interf ere with proper operation of the
auto light switch. If the bac klight does not light, tr y moving the w atch back to
the star ting position (parallel with the ground) and then tilt it bac k toward
you again. If this does not work, drop your arm all the wa y down so it hangs
at your side , and then br ing it back up again.
• Under certain conditions, the backlight may not light until about one second
after you turn the face of the watch to wards you. This does not necessarily
indicate malfunction of the backlight.
Digital Compass Precautions
This watch f eatures a built-in magnetic bearing sensor that detects terrestrial
magnetism. This means that nor th indicated by this w atch is magnetic nor th,
which is somewhat diff erent from true polar nor th. The magnetic north pole is
located in norther n Canada, while the magnetic south pole is in souther n
Austr alia. Note that the difference between magnetic north and true nor th as
measured with all magnetic compasses tends to be greater as one gets
closer to either of the magnetic poles. Y ou should also remember that some
maps indicate true nor th (instead of magnetic nor th), and so you should mak e
allowances when using such maps with this w atch.
Location
• T aking a direction reading when you are near a source of strong magnetism
can cause large errors in readings. Because of this, y ou should av oid taking
direction readings while in the vicinity of the following types of objects:
permanent magnets (magnetic necklaces, etc.), concentrations of metal
(metal doors, lock ers, etc.), high tension wires, aerial wires, household
appliances (TVs, personal computers, w ashing machines, freezers , etc.)
• Accurate direction readings are impossible while in a train, boat, air plane ,
etc.
• Accurate readings are also impossible indoors , especially inside ferro-
concrete structures. This is because the metal framework of such structures
picks up magnetism from appliances, etc.
Storage
• The precision of the bearing sensor may deteriorate if the watch becomes
magnetized. Because of this, y ou should be sure to store the watch aw ay
from magnets or any other sources of strong magnetism, including:
permanent magnets (magnetic necklaces, etc.) and household appliances
(TVs, personal computers, washing machines , freezers, etc.)
• Whenev er you suspect that the watch ma y hav e become magnetized,
perform one of the calibration procedures under “Calibrating the Bearing
Sensor”.
Calibrating the Bearing Sensor
Whenev er you suspect that direction readings produced b y the watch are
wrong, you should calibrate it. Y ou can use either one of two calibration
procedures:
bidirectional calibration
or
norther ly calibration
.
Use bidirectional calibration when you want to tak e readings within an area
e xposed to magnetic force. This type of calibration should be used if the
watch become magnetized f or any reason.
With nor therly calibration, you “teach ” the w atch which way is north (which
you ha ve to determine with another compass or some other means). Y ou
could use this calibration procedure, f or example , to set the watch to indicate
true nor th instead of magnetic nor th.
Important!
• If you want to perf orm both bidirectional and nor therly calibration, be sure
to perform bidirectional calibration first, and then perf or m norther ly
calibration. This is necessary because bidirectional calibration cancels any
previously set northerly calibration setting.
• The more correctly you perf or m bidirectional calibration, the better the
accuracy of the bearing sensor readouts. Y ou should perf orm bidirectional
calibration whenev er you change en vironments where you use the bearing
sensor , and whenever y ou feel that the bearing sensor is producing
incorrect readings.