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Mode Reference Guide - Casio 5122 Operation Manual

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Operation Guide 5122
Approximate Reception Ranges
UK and German Signals
Anthorn
500 kilometers
1,500 kilometers
Mainflingen
The Anthorn signal is receivable
within this area.
Japanese Signals
Fukushima
500 kilometers
Fukuoka/Saga
1,000 kilometers
Even when the watch is within range of a transmitter, signal reception may be
impossible due to the effects of geographic contours, structures, weather, the time
of year, the time of day, radio interference, etc. The signal becomes weaker at
distances of approximately 500 kilometers, which means that the influence of the
above conditions becomes even greater.
Signal reception may not be possible at the distances noted below during certain
times of the year or day. Radio interference may also cause problems with reception.
Mainflingen (Germany) or Anthorn (England) transmitters: 500 kilometers
(310 miles)
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)
Shangqiu (China) transmitter: 500 kilometers (310 miles)
As of March 2010, China does not use Daylight Saving Time (DST). If China does
go to the Daylight Saving Time system in the future, some functions of this watch
may no longer operate correctly.
Using this watch in a country covered by a time calibration signal that is different
from the countries it supports may result in incorrect time indication due to local
application of summer time, etc.
To get ready for a receive operation
1.
Confirm that the watch is in the Timekeeping Mode. If it isn't, hold down
two seconds to enter the Timekeeping Mode.
2.
The antenna of this watch is located on its 12 o'clock side. Position the watch with
12 o'clock facing towards a window as shown in the nearby illustration. Make sure
there are no metal objects nearby.
12 o'clock
or
Inside or
Inside a
Near
among
vehicle
household
buildings
appliances,
office
equipment,
or a mobile
phone
3.
What you should do next depends on whether you are using Auto Receive or
Manual Receive.
Auto Receive: Leave the watch over night in the location you selected in step 2.
See "Auto Receive" for details.
Manual Receive: Perform the operation under "To perform manual receive".
Auto Receive
With Auto Receive, the watch performs the receive operation each day
automatically up to six times (up to five times for the Chinese calibration signal)
between the hours of midnight and 5 a.m. (according to the Timekeeping Mode
time). When any receive operation is successful, none of the other receive
operations for that day are performed.
When a calibration time is reached, the watch will perform the receive operation
only if it is in the Timekeeping Mode or World Time Mode. The receive operation is
not performed if a calibration time is reached while you are configuring settings.
To perform manual receive
1.
In the Timekeeping Mode, keep
D depressed (for about two seconds) as the
x Second Hand goes through the following sequence.
Moves to
YES (or Y for some models) or NO (N) to indicate the last signal
reception result, then to READY (R).
U.S. Signal
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
Chinese Signal
500 kilometers
Changchun
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
1,500 kilometers
C at least
Signal reception normally is better
at night.
The receive operation takes from two
to seven minutes, but in some cases
it can take as long as 14 minutes.
Take care that you do not perform
any button operation or move the
watch during this time.
Signal reception may be difficult or
even impossible under the conditions
described below.
Near a
Near
Among
construction
high-tension
or behind
site, airport,
power lines
mountains
or other
sources of
electrical
noise
2.
The
x Second Hand indicates the operations the watch is currently performing.
When the x Second
Hand is pointed here:
READY (R)
WORK (W)
If signal reception is unstable, the
may move between WORK (W) and READY (R).
3.
Regular timekeeping resumes after the receive operation
is complete.
When the receive operation is successful, the watch
adjusts the time setting accordingly. It does not adjust
the setting if the operation failed.
Note
To interrupt a receive operation and return to the
Timekeeping Mode, press any button.
To check the result of the latest receive operation
In the Timekeeping Mode, press D.
The
x Second Hand will move to YES (Y) for five
seconds if the latest receive operation was successful,
or NO (N) if it was not. After that, regular timekeeping
will resume.
You can return to the Timekeeping Mode manually by
pressing D while the x Second Hand is pointing to YES
(Y) or NO (N).
Note
The
x Second Hand will indicate NO (N) if you have
adjusted the time or date setting manually since the
latest receive operation.
Radio-controlled Atomic Timekeeping Precautions
Strong electrostatic charge can result in the wrong time setting.
Even if a receive operation is successful, certain conditions can cause the time
setting to be off by up to one second.
The watch is designed to update the date automatically for the period January 1,
2000 to December 31, 2099. Updating of the date by signal reception will no longer
be performed starting from January 1, 2100.
If you are in an area where signal reception is not possible, the watch keeps time
with the precision noted in "Specifications".
The receive operation is disabled under any of the following conditions.
While power is at Level 2 or lower
While the watch is in the power recovery mode
When the watch is in the function sleep state ("Power Saving")
A receive operation is cancelled if an alarm sounds while it is being performed.

Mode Reference Guide

Your watch has four "modes". The mode you should select depends on what you
want to do.
Note
There are also various setting modes, which you can enter by holding down
the Timekeeping Mode. See "Setting Modes" for more information.
To do this:
View the current time in your Home City and in one of 29 other
cities around the globe
View the current date in the Home City
Perform a time calibration receive operation
Use the stopwatch to measure elapsed time
Select one of 29 cities (time zones) around the world and view the
current time there
Select daylight saving/summer time (DST) or standard time for a
time zone
Set an alarm time
Selecting a Mode
With this watch, everything starts from the Timekeeping Mode.
To determine the watch's current mode
Check the position of the v Left Dial hand as shown under
"To select a mode".
To return to the Timekeeping Mode from any other
mode
Hold down C for at least two seconds.
To select a mode
Press C to cycle between the modes as shown below. The v Left Dial indicates the
currently selected mode.
The v Left Dial rotates so the indicator for the current mode (TM, ST, WT, AL) is
aligned with the pointer .
Timekeeping Mode
C
v Left Dial indicates TM.
Alarm Mode
v Left Dial indicates AL.
It means this:
Watch is setting up for reception.
Reception is in progress.
x Second Hand
A in
Enter this mode:
Timekeeping Mode
Stopwatch Mode
World Time Mode
Alarm Mode
Stopwatch Mode
v Left Dial indicates ST, then
aligns the dial hand with the
pointer .
World Time Mode
v Left Dial indicates WT,
then aligns the dial hand with
STD or DST.
2

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