Operation Guide 3144
8
Reference
This section contains more detailed and technical information about watch
operation. It also contains important precautions and notes about the various
features and functions of this watch.
Auto Return Features
•
The watch returns to the Timekeeping Mode automatically if you do not
perform any button operation for two or three minutes in the Data Recall,
Alarm, or Barometer/Thermometer Mode.
•
If you do not perform any button operation while in the Altimeter Mode, the
watch returns to the Timekeeping Mode automatically after nine or 10 hours
(altitude measurement type:
2’00
) or after one hour (altitude measurement
type:
0’05
).
•
If you leave a screen with flashing digits on the display for two or three
minutes without performing any operation, the watch exits the setting
screen automatically.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing
when you last exited the mode appears first.
Scrolling
The
D
and
B
buttons are used on the setting screen to scroll through data
on the display. In most cases, holding down these buttons during a scroll
operation scrolls through the data at high speed.
Sensor Malfunction Indicator
Subjecting the watch to strong impact can cause sensor malfunction or
improper contact of internal circuitry. When this happens,
ERR
(error) will
appear on the display and sensor operations will be disabled.
•
If
ERR
appears while a measurement operation is being performed in a
sensor mode, restart the measurement. If
ERR
appears on the display
again, it can mean there is something wrong with the sensor.
•
Even if battery power is at Level 1 or Level 2, the Barometer/Thermometer
Mode or Altimeter Mode sensor may be disabled if there is not enough
voltage available 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 level.
•
If
ERR
keeps appearing during measurement, it could mean there is a
problem with the applicable sensor.
Whenever you have a sensor malfunction, be sure to take the watch to
your original dealer or nearest authorized CASIO distributor as soon as
possible.
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.
•
Even if you turn off the button operation tone,
the alarm, Hourly Time Signal, and Countdown
Timer Mode alarm all operate normally.
Mute indicator
To turn the button operation tone on and off
In any mode (except when a setting screen is on the display), hold down
C
to toggle the button operation tone on (
not displayed) and off (
displayed).
•
Since the
C
button is also the mode change button, holding it down to turn
the button operation on or off also causes the watch’s current mode to
change.
•
The mute indicator is displayed in all modes when the button operation tone
is turned off.
Power Saving
When turned on, Power Saving enters a sleep
state automatically whenever the watch is left for
a certain period in an area where it is dark. The
table below shows how watch functions are
affected by Power Saving.
•
There actually are two sleep state levels:
“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, but all functions
are enabled.
All functions are disabled, but
timekeeping is maintained.
•
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.
To turn Power Saving on and off
1. In the Timekeeping Mode, hold down
A
until
the city code starts to flash, which indicates
the setting screen.
2. Press
C
nine times until the Power Saving
on/off screen appears.
3. Press
D
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.
l l l
l
ll
ll
ll
ll
l
l l
l l l
Power 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 by 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 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 displayed in the range of 0:00 to 23:59,
without any indicator.
•
The 12-hour/24-hour timekeeping format you select in the Timekeeping
Mode is applied in all modes.
•
The watch’s built-in full automatic calendar makes allowances for 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 Level 5.
•
The current time for all city codes in the Timekeeping Mode and World Time
Mode is calculated in accordance with the Greenwich Mean Time (GMT)
differential for each city, based on your Home City time setting.
•
GMT differential is calculated by this watch based on Coordinated Universal
Time (UTC) data.
Illumination Precautions
•
The electro-luminescent panel that provides illumination loses power after
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.
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.
•
The watch will not enter the sleep state while it is in the Barometer/
Thermometer, Altimeter, Countdown Timer, or Stopwatch Mode. When the
watch is left in any mode besides the Countdown Timer and Stopwatch
Mode, it 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 well-lit area. It can take up to two seconds for the
display to turn on.
•
Press any button.
•
Angle the watch towards your face for reading.
•
Illumination may not turn on if the face of the
watch is more than 15 degrees above 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 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.
More than 15 degrees
too high
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.
