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2271-7
Low Battery Indicator
This message indicates that battery power is
too low to perform the measurement. It
appears whenever battery power drops below
a certain level, or when you try to perform a
measurement under very cold conditions
(below about –10°C/14°F).
If the cause of the low battery indicator is due to use under cold conditions,
normal operation should return after the watch is brought back to normal
temperature.
If the cause of the low battery indicator is due to low battery power (indicated
when
appears under normal temperatures), you should have the
watch’s batteries replaced as soon as possible. Note that replacement of the
batteries causes all memory contents to be deleted.
Sensor Malfunction Indicator
This message flashes on the display to
indicate malfunction of pressure sensor
circuitry.
Note that calibrating the Digital Compass can
also cause the
message to appear.
In this case, the message does not indicate
sensor malfunction, and the condition should
be corrected when you re-calibrate the Digital
Compass.
Important!
• If a sensor malfunctions or if battery power is low when it comes time for a
measurement to be taken, the measurement value appears as
xxxx on
the display. In the case of barometric pressure measurement, the
corresponding point on the barometric pressure graph is left blank.
• There may be cases where the
(sensor malfunction)
or
(low battery) message disappears from the display when you
change modes. In this case, you can continue using the watch normally
unless the warning indicator reappears.
Whenever you have a sensor malfunction, be sure to take the watch to an
authorized CASIO distributor or service provider as soon as possible.
Auto Return Features
• After you perform an operation in the Recall, Alarm, and Stopwatch Modes,
pressing D returns to the Timekeeping Mode.
• If you leave the watch in the Digital Compass, Barometer/Thermometer, or
Altimeter Mode for 10 to 11 hours without performing any operation, the
watch beeps and automatically returns to the Timekeeping Mode.
• If you leave a screen with flashing digits on the display for two or three
minutes without performing any operation, the watch automatically saves
anything you have input up to that point and exits the setting screen.
Data and Setting Scrolling
The E and B buttons are used in various modes and setting screens 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.
Timekeeping
• The day of the week is automatically displayed in accordance with the date
(year, month, and day) settings.
• The year can be set in the range of 2000 to 2039.
• The watch’s built-in full automatic calendar automatically makes
allowances for different month lengths and leap years. Once you set the
date, there should be no reason to change it except after you have the
watch’s batteries replaced.
12-hour/24-hour Timekeeping Formats
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode
is also applied in all modes.
• With the 12-hour format, the P (PM) indicator appears to the left of the hour
digits for times in the range of noon to 11:59 p.m. and no indicator appears
to the left of the hour digits 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,
with 24 indicator.
Backlight Precautions
• The electro-luminescent panel that provides illumination loses power after
very long use.
• The illumination provided by the backlight may be hard to see when viewed
under direct sunlight.
• The watch will emit an audible sound whenever the display is illuminated. It
does not indicate malfunction of the watch.
• The backlight automatically turns off whenever an alarm sounds.
• The backlight remains lit for about one second from the point you press the
button, even if it is already lit when you press the button. If you keep the
button depressed for one second or more, the backlight automatically turns
off.
• Frequent use of the backlight shortens the battery life.
Auto light switch precautions
• Avoid wearing the watch on the inside of your wrist. Doing so causes the
auto light switch to operate when it is not needed, which shortens battery
life. If you want to wear the watch on the inside of your wrist, turn off the
auto light switch feature.
• The backlight may not light 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.
• The backlight 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 the backlight does not light, try moving the watch back
to the starting position (parallel with the ground) and then tilt it back toward
you 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, the backlight may not light until about one second
after you turn the face of the watch towards you. This does not necessarily
indicate malfunction of the backlight.
Digital Compass Precautions
This watch features a built-in magnetic bearing sensor that detects terrestrial
magnetism. This means that north indicated by this watch is magnetic north,
which is somewhat different from true polar north. The magnetic north pole is
located in northern Canada, while the magnetic south pole is in southern
Australia. Note that the difference between magnetic north and true north as
measured with all magnetic compasses tends to be greater as one gets
closer to either of the magnetic poles. You should also remember that some
maps indicate true north (instead of magnetic north), and so you should make
allowances when using such maps with this watch.
More than 15 degrees
too high
Location
• Taking a direction reading when you are near a source of strong
magnetism can cause large errors in readings. Because of this, you should
avoid taking direction readings while in the vicinity of the following types of
objects: permanent magnets (magnetic necklaces, etc.), concentrations of
metal (metal doors, lockers, etc.), high tension wires, aerial wires,
household appliances (TVs, personal computers, washing 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, you should be sure to store the watch away
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.)
• Whenever you suspect that the watch may have become magnetized,
perform one of the calibration procedures under “Calibrating the Bearing
Sensor” below.
Calibrating the Bearing Sensor
Whenever you suspect that direction readings produced by the watch are
wrong, you should calibrate it. You can use either one of two calibration
procedures:
bidirectional calibration
or
northerly calibration
.
Use bidirectional calibration when you want to take readings within an area
exposed to magnetic force. This type of calibration should be used if the
watch become magnetized for any reason.
With northerly calibration, you “teach” the watch which way is north (which
you have to determine with another compass or some other means). You
could use this calibration procedure, for example, to set the watch to indicate
true north instead of magnetic north.
Important!
• If you want to perform both bidirectional and northerly calibration, be sure
to perform bidirectional calibration first, and then perform northerly
calibration. This is necessary because bidirectional calibration cancels any
previously set northerly calibration setting.
• The more correctly you perform bidirectional calibration, the better the
accuracy of the bearing sensor readouts. You should perform bidirectional
calibration whenever you change environments where you use the bearing
sensor, and whenever you feel that the bearing sensor is producing
incorrect readings.
To perform bidirectional calibration
1. Enter the Digital Compass Mode.
2. Hold down A until the upper display area
changes to show
-1-, which indicates
the setting screen.
• At this time, the magnetic north pointer
flashes at the 12 o’clock position to
indicate that the watch is ready to
calibrate the first direction.