Casio 3047 Operation Manual Download Page 2

Operation Guide 3047

2

Radio-controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting
accordingly.

This watch is designed to pick up the time calibration signal transmitted in
Germany (Mainflingen), England (Rugby), and the United States (Fort
Collins) and the time calibration signals transmitted in Japan.

Current Time Setting

This watch adjusts its time setting automatically in accordance with a time
calibration signal. You also can perform a manual procedure to set the time
and date, when necessary.

The first thing you should do after purchasing this watch is to specify your
Home City (the city where you normally will use the watch). For more
information, see “To specify your Home City” below.

When using the watch outside the areas covered by the time signal
transmitters, you will have to adjust the current time setting manually as
required. See “Timekeeping” for more information about manual time
settings.

The U.S. time calibration signal can be picked up by the watch while in North America.

* The term “North America” in this manual refers to the area that consists of

Canada, the continental United States, and Mexico.

To specify your Home City

1. In the Timekeeping Mode, hold down 

E

 until

the city code starts to flash, which indicates
the setting screen.

2. Press 

C

 (east) and 

D

 (west) to select the

city code you want to use as your Home City.

LON

: London

PAR

BER

: Paris, Berlin, Milan, Rome,

Amsterdam, Hamburg, Frankfurt,
Vienna, Barcelona, Madrid

ATH

:

Athens

TYO

SEL

:Tokyo, Seoul

NYC

:

New York, Detroit, Miami, Boston, Montreal

CHI

:

Chicago, Houston, Dallas/Fort Worth, New Orleans, Winnipeg, Mexico

City

DEN

:

Denver, El Paso, Edmonton, Culiacan

l l l

ll

ll

ll

ll

ll

ll

l l

l l l l

City code

LAX

: Los Angeles, San Francisco, Las Vegas, Seattle/Tacoma,

Vancouver, Tijuana

3. Press 

E

 to exit the setting screen.

Normally, your watch should show the correct time as soon as you select
your Home City code. If it does not, it should adjust automatically after the
next auto receive operation (in the middle of the night). You also can
perform manual receive or you can set the time manually.

The watch will receive the time calibration signal automatically from the
applicable transmitter (in the middle of the night) and update its settings
accordingly. For information about the relationship between city codes and
transmitters, see “Transmitters”.

See the maps under “Reception Ranges” for information about the
reception ranges of the watch.

You can disable time signal reception, if you want. See “To turn auto receive
on and off” for more information.

Time Calibration Signal Reception

There are two different methods you can use to receive the time calibration
signal: auto receive and manual receive.

Auto Receive

With auto receive, the watch receives the time calibration signal automatically
up to six times a day. When any auto receive is successful, the remaining
auto receive operations are not performed. For more information, see “About
Auto Receive”.

Manual Receive

Manual receive lets you start a time calibration receive operation with the press
of a button. For more information, see “To perform manual receive”.

Important!

When getting ready to receive the time calibration signal, position the watch
as shown in the nearby illustration, with its 12 o’clock side facing towards a
window. Make sure there are no metal objects nearby.

12 o’clock

or

The watch should not be facing the wrong way.

Proper signal reception can be difficult or even impossible under the
conditions listed below.

Inside or
among
buildings

Inside a
vehicle

Near a
construction
site, airport,
or other
sources of
electrical
noise

Near high-
tension
power lines

Among or
behind
mountains

Near
household
appliances,
office
equipment,
or a mobile
phone

The time calibration signal the watch will attempt to pick up depends on its
current Home City code setting as shown below.

Home City Code

LON

,

PAR

,

 BER

,

 ATH

TYO

,

 SEL

NYC

,

 CHI

,

 DEN

,

 LAX

Frequency

60.0 kHz

77.5 kHz

40.0 kHz

60.0 kHz

60.0 kHz

Transmitter

Rugby (England)

Mainflingen (Germany)

Fukushima (Japan)

Fukuoka/Saga (Japan)

Fort Collins, Colorado
(the United States)

Signal reception normally is better at night than during the day.

Time calibration signal reception 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 operations or move the watch during this time.

Reception Ranges

Rugby

Mainflingen

1,500 kilometers

500 kilometers

Fort
Collins

2,000 miles
(3,000 kilometers)

600 miles
(1,000 kilometers)

1,000
kilometers

1,000
kilometers

Fukuoka/Saga

500 kilometers

Fukushima

500
kilometers

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 Rugby (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)

Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other
geological formations between the watch and signal source.

Signal reception is affected by weather, atmospheric conditions, and
seasonal changes.

See the information under “Signal Reception Troubleshooting” if you
experience problems with time calibration signal reception.

About Auto Receive

The watch receives the time calibration signal automatically up to six times a
day. When any auto receive is successful, the remaining auto receive
operations are not performed.  The reception schedule (calibration times)
depends on your currently selected Home City, and whether standard time or
Daylight Saving Time is selected for your Home City.

Your Home City

Auto Receive Start Times

1

2

3

4

5

6

LON

Standard Time

1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Midnight

Daylight Saving Time

2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am

next day

PAR

,

Standard Time

2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am

BER

next day

Daylight Saving Time

3:00 am 4:00 am 5:00 am Midnight 1:00 am 2:00 am

next day next day

ATH

Standard Time

3:00 am 4:00 am 5:00 am Midnight 1:00 am 2:00 am

next day next day

Daylight Saving Time

4:00 am 5:00 am Midnight 1:00 am 2:00 am 3:00 am

next day next day next day

TYO

,

Standard Time

Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am

SEL
NYC

,

Standard Time  and

Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am

CHI

,

Daylight

 

Saving Time

DEN

,

LAX

Note

When a calibration time is reached, the watch will receive the calibration
signal only if it is in either the Timekeeping Mode or World Time Mode.
Reception is not performed if a calibration time is reached while you are
configuring settings.

Auto receive of the calibration signal is designed to be performed early in
the morning, while you sleep (provided that the Timekeeping Mode time is
set correctly). Before going to bed for the night, remove the watch from your
wrist, and put it in a location where it can receive the signal easily.

Summary of Contents for 3047

Page 1: ...or taking measurements that require professional or industrial precision Values produced by this watch should be considered as reasonable representations only When engaging in mountain climbing or other activities in which losing your way can create a dangerous or life threatening situation always be sure to use a second compass to confirm direction readings This watch is intended for use up to sk...

Page 2: ...nal reception can be difficult or even impossible under the conditions listed below Inside or among buildings Inside a vehicle Near a construction site airport or other sources of electrical noise Near high tension power lines Among or behind mountains Near household appliances office equipment or a mobile phone The time calibration signal the watch will attempt to pick up depends on its current H...

Page 3: ...t three minutes Note To interrupt a receive operation and return to the Receive Mode press C Receive failed If there was a previously successful reception If no reception was successful To turn auto receive on and off 1 Enter the Receive Mode 2 In the Receive Mode hold down E until the current auto receive setting ON or OFF starts to flash This is the setting screen Note that the setting screen wi...

Page 4: ...45 inHg The barometric pressure value will be displayed again as soon as the measured barometric pressure is within the allowable range Temperature is displayed in units of 0 1 C or 0 2 F The displayed temperature value changes to C or F if a measured temperature falls outside the range of 10 0 C to 60 0 C 14 0 F to 140 0 F The temperature value will be displayed again as soon as the measured temp...

Page 5: ...mum depth attained water temperature at maximum depth to be stored in log memory The elapsed time is displayed in minutes and seconds for the first hour After the first hour it switches to hours and minutes Pressing E while your current depth is less than one meter will toggle the display between the graph and the temperature screens If the watch stays at a depth of less than one meter and you do ...

Page 6: ...at the water s surface never while the watch is submerged A major change in air temperature or other phenomena while you are using the Depth Gauge Mode can cause the display to show a value other than 0 meters feet when you are at the surface of the water If this happens reset the reference depth to 0 meters feet See To reset the reference depth to 0 meters feet manually for more information To vi...

Page 7: ...e by pressing A while a timer operation is in progress The following describes what happens if you enter the Depth Gauge Mode for diving while a countdown operation is in progress Auto repeat off The alarm sounds when the end of the countdown is reached The progress beeper does not sound Auto repeat on Auto repeat timer alarm does not sound when the end of a countdown is reached The progress beepe...

Page 8: ...easurement While a bearing sensor calibration operation is being performed in the Digital Compass Mode While a receive operation is in progress in the Receive Mode Moving the watch to a position that is parallel to the ground and then tilting it towards you more than 40 degrees causes illumination to turn on Wear the watch on the outside of your wrist Warning Always make sure you are in a safe pla...

Page 9: ... watch to become very hot Avoid leaving the watch in the areas described below whenever charging its rechargeable battery Also note that allowing the watch to become very hot can cause its liquid crystal display to black out The appearance of the LCD should become normal again when the watch returns to a lower temperature Warning Leaving the watch in bright light to charge its rechargeable battery...

Page 10: ...e turned off automatically Transmitter area city codes HKG SEL and TYO LAX DEN CHI NYC ANC and HNL LON PAR BER and ATH All other city codes 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 will return to the Timekeeping ...

Page 11: ...ka Saga When a European time zone is selected the watch receives the time calibration signals transmitted from Germany Mainflingen and England Rugby The following tables show the reception priority for the European signals When PAR BER or ATH is selected as the Home City code When LON is selected as the Home City code In this case The first signal search operation after the Home City code has been...

Page 12: ...es at the 6 o clock position when calibration of the first direction is complete This means that the watch is ready for calibration of the second direction 4 Rotate the watch 180 degrees l l l l l l l l l l l l l l l l l l 5 Press A again to calibrate the second direction xxx is shown on the display while calibration is being performed When calibration is complete OK appears and then the Digital C...

Page 13: ...e Important This resets the reference depth and causes the displayed depth to change to 0 meters feet Never perform the above operation while submerged To specify the depth unit 1 Enter the Timekeeping Mode 2 Hold down E until the city code starts to flash which indicates the setting screen 3 Press D 11 times to select the depth unit setting See step 2 under To set the time and date manually for i...

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