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Q2
Auto time setting is not correct.
Is
displayed?
e
To preserve battery power, the watch will
automatically terminate Bluetooth
connection with your phone temporarily if
it detects the connection has been unused
for approximately one hour. Auto Time
Adjustment is disabled while there is no
connection. To reconnect, press any
watch button or angle the watch towards
your face.
Have 24 hours or more passed since the
last time adjustment using Bluetooth
connection?
Note that auto time adjustment is not
performed for 24 hours after you adjust
the time setting manually on the watch.
Auto time adjustment will resume after 24
hours.
Have 24 hours or more passed since the
last manual time adjustment or city
change?
Auto time adjustment is not performed for
24 hours after a manual time adjustment
or city change. Auto time adjustment will
resume after 24 hours or more have
elapsed after either of the above
operations is performed.
Is the watch's Airplane Mode enabled?
Connection with your phone is not
possible while the watch's Airplane Mode
is enabled. To connect with your phone,
disable the Airplane Mode.
Entering the Watch Airplane Mode
l
Q3
Time is not displayed correctly.
The phone's time setting may be incorrect
because it is unable to connect with its
network due to being out of range, etc. If this
happens, connect the phone to its network
and then adjust the time setting.
Watch Operation Guide 3515
Heart Rate Measurement
Q1
[ERROR] is displayed during
measurement.
There may be a problem with the sensor. Try
taking another measurement. If [ERROR]
keeps appearing after multiple measurement
attempts, contact a CASIO service center or
your original retailer.
Altitude Measurement
Q1
Readings produce different results at
the same location.
Watch readings are different from
altitude information available from
other sources.
Correct altitude readings are not
possible.
Relative altitude is calculated based on
changes in barometric pressure measured by
the watch's pressure sensor. This means that
barometric pressure changes can cause
readings taken at the same location to be
different. Also note that the value displayed by
the watch may be different from the actual
elevation and/or sea level elevation indicated
for the area where you are located. When
using the watch's altimeter while mountain
climbing, it is recommended that you regularly
calibrate its readings in accordance with local
altitude (elevation) indications.
Calibrating Altitude Readings
l
Q2
[- - - - -] appears on the display
following altitude differential
measurement.
[- - - - -] appears on the display when the
altitude differential is outside the allowable
measuring range (±3,000 m (±9,840 feet)). If
[ERROR] is displayed, there may be a
problem with the sensor.
Setting a Reference Altitude and Taking
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Altitude Differential Readings
Q3
[ERROR] is displayed during
measurement.
There may be a problem with the sensor. Try
taking another measurement. If [ERROR]
keeps appearing after multiple measurement
attempts, contact a CASIO service center or
your original retailer.
Digital Compass
Q1
The symbol [
] is shown on the
display.
Accessing the compass function causes
[
] to appear on the display. This icon will
disappear when you perform a bearing
measurement operation.
Taking a Compass Reading
l
If [
] appears on the display during
bearing or activity measurements, it means
abnormal magnetism was detected. Move
away from any potential source of strong
magnetism and try taking a reading again.
If [
] appears again, it could mean that the
watch body has become magnetized. Move
away from any potential source of strong
magnetism, perform direction calibration, and
then try taking a reading again.
Calibrating the Compass
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Digital Compass Reading Precautions
l
Q2
[ERROR] is displayed during
measurement.
There is a problem with the sensor or there
may be a source of strong magnetic force
nearby. Move away from any potential source
of strong magnetism and try taking a reading
again. If [ERROR] keeps appearing after
multiple measurement attempts, contact a
CASIO service center or your original retailer.
Digital Compass Reading Precautions
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Q3
[ERROR] appears on the display
following direction calibration.
If [- - -] is followed by [ERROR] on the display,
it could mean there is something wrong with
the sensor.
If [ERROR] disappears after about one
●
second, try calibrating again.
If [ERROR] keeps appearing after multiple
●
attempts, contact a CASIO service center or
your original retailer.
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