Operation Guide 2894
10
• If
ERR
appears while a measurement operation is being perf ormed in a
sensor mode, restart the measurement. If
ERR
appears on the displa y
again, it can mean there is something wrong with the sensor .
• Even if battery power is at Lev el 1 or Le vel 2, the Digital Compass Mode ,
Barometer/Thermometer Mode, or Altimeter Mode sensor may be disab led
if there is not enough voltage a vailab le to power it sufficiently . In this case,
ERR
will appear on the display . This does not indicate malfunction, and
sensor operation should resume once battery voltage returns to its normal
lev el.
• If
ERR
keeps appearing during measurement, it could mean there is a
problem with the applicab le sensor .
Whenev er you ha v e a sensor malfunction, be sure to take the watch to
your original dealer or nearest authorized CASIO distributor as soon as
possible.
P ower Saving
When turned on, Power Sa ving automatically
enters a sleep state whenev er the watch is left f or
a cer tain period in an area where it is dark. The
table below sho ws how w atch functions are
affected b y P ow er Saving.
• There are actually two sleep state le vels:
“display sleep ” and “function sleep ”.
Elapsed Time in
Dark
60 to 70 minutes
(Display Sleep)
6 or 7 days
(Function Sleep)
Display
Blank, with
PS flashing
Blank, with
PS not
flashing
Operation
Display is off , b ut all functions are
enabled.
All functions are disabled, b ut
timekeeping is maintained.
• Wearing the watch inside the slee v e 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 w atch is already in the sleep state when the
digital time reaches 6:00 AM, howe v er , it will remain in the sleep state.
• The watch will not enter the sleep state while it is in the Countdown Timer
or Stopwatch Mode .
To recover from the sleep state
P erf orm any one of the following oper ations.
• Move the w atch to a well-lit area. It can tak e up to two seconds f or the
display to turn on.
• Press any button.
• Angle the watch tow ards your face f or readings .
To turn Power Saving on and off
1. In the Timek eeping Mode , hold down E until
the city code star ts to flash, which indicates
the setting screen.
2. Press D nine times until the P ower Sa ving
on/off screen appears.
3. Press C to toggle Po wer Sa ving on (
ON) and
off (
OFF).
4. Press E to e xit the setting screen.
• The P ow er Saving on indicator (PS ) is on the
displa y in all modes while P ower Sa ving is
turned on.
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
Po wer Saving on
indicator
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 display f or
times in the range of noon to 11:59 p .m. and no indicator appears f or 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 .
Illumination Precautions
• The electro-luminescent panel that provides illumination loses po wer after
very long use.
• Illumination may be hard to see when vie wed under direct sunlight.
• Illumination automatically turns off whenever an alarm sounds.
• The watch may emit an audib le sound whene ver 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 battery .
Auto light s witch precautions
• Wearing the watch on the inside of y our wrist, mov ement of your arm, or
vibration of your arm can cause frequent activ ation of the auto light switch
and illumination of the display . T o av oid running down the battery , turn off
the auto light switch whene v er engaging in activities that might cause
frequent illumination of the display .
• Note that wearing the watch under your slee v e while the auto light switch is
turned on can cause frequent illumination of the display and can run down
the battery .
• Illumination ma y not turn on if the face of the
watch is more than 15 degrees abo ve or belo w
parallel. Mak e sure that the back of y our hand
is parallel to the ground.
• Illumination turns off after the preset
illumination duration (see “T o specify the
illumination duration” ), e ven if y ou keep the
watch pointed tow ards your f ace.
• Static electricity or magnetic force can interf ere with proper operation of the
auto light switch. If illumination does not tur n on, try 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 y our arm all the way do wn so it
hangs at your side, and then bring it bac k up again.
• Under certain conditions, illumination does not turn on until about one
second after you turn the face of the watch to wards y ou. This does not
necessarily indicate malfunction.
• Y ou may notice a very faint clic king sound coming from the watch when it is
shaken bac k and forth. This sound is caused by mechanical oper ation of the
auto light switch, and does not indicate a prob lem with the watch.
More than 15 degrees
too high
Digital Compass Precautions
This watch f eatures a built-in magnetic bearing sensor that detects terrestrial
magnetism. This means that north indicated by this watch is magnetic north,
which is somewhat diff erent from true polar north. The magnetic north pole is
located in norther n Canada, while the magnetic south pole is in southern
Austr alia. Note that the diff erence 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 north), and so you should make
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 , you should a void taking
direction readings while in the vicinity of the f ollowing 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 tr ain, boat, air plane,
etc.
• Accurate readings are also impossible indoors , especially inside ferro-
concrete structures. This is because the metal fr amework 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 , you should be sure to store the w atch aw ay
from magnets or any other sources of strong magnetism, including:
permanent magnets (magnetic necklaces, etc.) and household appliances
(TVs, personal computers, w ashing machines, freez ers, etc.)
• Whenev er you suspect that the w atch ma y hav e become magnetized,
perform one of the calibration procedures under “Calibrating the Bearing
Sensor”.
Sensor Malfunction Indicator
Subjecting the watch to strong impact can cause sensor malfunction or
improper contact of internal circuitr y . When this happens,
ERR
(error) will
appear on the display and sensor operations will be disab led.
Barometric
Pressure
Measurement
Digital
Compass
Measurement
Altitude
Measurement
• The 12-hour/24-hour timekeeping f ormat you select in the Timek eeping
Mode is applied in all modes.
• The watch ’s built-in full automatic calendar mak es allo wances for diff erent
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 v el 4.
• The current time f or all city codes in the Timekeeping Mode and W orld Time
Mode is calculated in accordance with the Greenwich Mean Time (GMT)
differential f or each city , based on your Home City time setting.
• GMT differential is calculated b y this watch based on Univ ersal Time
Coordinated (UTC) data.