Time Calibration Signal Reception Ranges; Auto Time Calibration Signal Receive; Manual Time Calibration Signal Receive; Signal Reception Precautions - Casio 5542 Operation Manual

Auto Time Calibration Signal
Receive
An automatic time calibration signal receive
operation is performed and the time and day
settings are adjusted between midnight and
5:00 a.m. Once a signal receive operation is
successful, no more auto receive operations
are performed that day.
Getting Ready
Enter the Timekeeping Mode.
Navigating Between Modes
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Place the watch near a window or some other
location appropriate for signal reception.
The second hand points to [RC] while the
●
receive operation in progress.
When the receive operation is successful,
●
the time and day settings will be adjusted
automatically.
Note
The receive operation takes anywhere
●
from about two minutes to about 10
minutes. It can take as long as 20
minutes.
If the watch connects with a phone and
●
adjusts its time setting, the watch will
not perform auto receive of a time
calibration signal for the rest of that day
or the next day.
Operation Guide 5542
Manual Time Calibration Signal
Receive
1.
Place the watch near a window or some
other location appropriate for time signal
reception.
2.
Enter the Timekeeping Mode.
Navigating Between Modes
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3.
Hold down (B) for about 1.5 seconds until
the second hand points to [RC].
This indicates that the receive operation
has started. After the receive operation is
complete, the watch's time and day
settings will be adjusted accordingly.
Note
The receive operation takes anywhere
●
from about two minutes to about 10
minutes. It can take as long as 20
minutes.
Time calibration signal reception is
●
better at night than during the day.

Signal Reception Precautions

When the watch is unable to adjust its time
●
in accordance with a calibration signal for
some reason, average timekeeping
accuracy is within ±15 seconds per month.
Note that an internal decoding process the
●
watch performs after it receives a signal
may cause the time setting to be slightly off
(by less than one second).
Time calibration signal reception is not
●
possible under the conditions described
below.
While battery power is low
ー
While in the Stopwatch Mode
ー
At Power Saving Level 2
ー
While the crown is pulled out
ー
As of July 2017, China does not observe
●
summer time. If China starts to observe
summer time in the future, the time
displayed by the watch for China may not be
correct.
Checking the Last Time
Adjustment Result
1.
Enter the Timekeeping Mode.
l
2.
Press (B).
The second hand will indicate the last time
adjustment operation result. The watch
hands will return to indicating the current
time if you do not perform any operation
for nine or ten seconds.
30
[Y(YES)]: Last time adjustment operation
successful.
[N(NO)]: Last time adjustment operation
failed.
Note
Even if there was a successful time
●
calibration signal receive operation or
connection with a phone, the second
hand will point to [N(NO)] if you
adjusted the time and/or date setting
manually.
Navigating Between Modes
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Second hand
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