Casio 2583 Manuel d'utilisation - Page 3

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Operation Guide 2406 2583 2587

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

• If you leave the watch in Alarm, Date Alert, or Time Zone Mode for about 10 seconds

without performing any operation, it 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 any settings you

have made up to that point and exits the setting screen.

Scrolling

The A and C 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

• Pressing A or C while setting the time in the Timekeeping Mode resets the

second's count to zero.

• The second's count is restarted when you press D to advance to the date setting

screen or B to exit the setting screen.

• 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 1997 to 2096.

• 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 battery replaced.

• Home Time is displayed in 12-hour format, while UTC is always displayed in 24-hour

format.

• The PM (Module 2406: PM; Modules 2583, 2587: P) 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.

UTC

The letters "UTC" stands for "Universal Time Coordinated," which is the world-wide

scientific standard of timekeeping. It is based upon carefully maintained atomic

(cesium) clocks that keep accurate to within microseconds. Leap seconds are added

or subtracted as necessary to keep UTC in sync with the Earth's rotation. The

reference point for UTC is Greenwich, England.

Time Calibration Signal Reception Precautions

• This watch receives the time calibration signal (Call

Sign: WWVB) transmitted from Fort Collins, Colorado.

Signal reception is possible within a radius of about

2,000 miles

2,000 miles (3,000 kilometers) from the Fort Collins

transmitter.

600 miles

• At distances further than about 600 miles (1,000

kilometers) from the transmitter, signal reception may

not be possible during certain times of year or times of

Fort Collins

day. Radio interference may also cause problems with

reception.

• The current time setting in accordance with the time calibration signal takes priority

over any time settings you make.

• The watch is designed to automatically update the date and day of the week for the

period January 1, 1997 to December 31, 2096. Setting of the date by the time

calibration signal cannot be performed starting from January 1, 2097.

• This watch can receive signals that differentiate between leap years and non-leap

years.

• Reception stops if an alarm starts to sound while the signal is being received.

• Even when the watch is within the reception range, signal reception is 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.

• The time calibration signal is bounced off the ionosphere. Because of this, such

factors as changes in the reflectivity of the ionosphere, as well as movement of the

ionosphere to higher altitudes due to seasonal atmospheric changes or the time of

day may change the reception range of the signal and make reception temporarily

impossible.

• Even if the time calibration signal is received properly, certain conditions can cause

the time setting to be off by up to one second.

• Think of the watch as acting like a TV or radio when it is receiving the calibration

signal. When receiving indoors, move to a location as near as possible to a window.

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

listed below.

Near TVs, refrigerators, computers, or other household appliances

Far away from broadcasting stations among ferro-concrete structures or near

mountains

Underground, in tunnels or in ferro-concrete buildings

Near high-tension wires, neon signs, or radio stations with interfering frequencies

Near railroads, highways or airports

In trains or cars

• Radio interference can make signal reception impossible.

• Strong electrostatic charge can result in the wrong time being set.

• If you are in an area where proper time calibration signal reception is impossible, the

watch keeps time within ± 20 seconds a month at normal temperature.

Backlight Precautions

The backlight uses an EL (electro-luminescent) panel that causes the entire display to

glow for easy reading in the dark. In any mode, press L to illuminate the display for

about three seconds.

• 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 may emit an audible sound whenever the display is illuminated. This is

due to vibration of the EL panel used for illumination, and does not indicate

malfunction.

• The backlight automatically turns off whenever an alarm sounds.

• Frequent use of the backlight shortens the battery life.

Low Power Battery Precautions

• The indicator ( ) on the display indicates normal battery power. The indicator

changes to a flashing when battery power is low.

• Though backlight, alarm, and signal receive operations are possible when the

indicator ( ) is flashing on the display, you should avoid performing these operations

because they require high amounts of power. Have the battery replaced by the store

or dealer where you purchased the watch as soon as possible.

Time Zone Table

Time Zone

Major cities in same time zone

Differential

–12h

–11h

PAGO PAGO

–10h

HONOLULU, PAPEETE

–9h

ANCHORAGE, NOME

LOS ANGELES, SAN FRANCISCO, LAS VEGAS, VANCOUVER,

–8h

SEATTLE, DAWSON CITY, TIJUANA

–7h

DENVER, EL PASO, EDMONTON, CULIACAN

CHICAGO, HOUSTON, DALLAS/FORT WORTH, NEW ORLEANS,

–6h

MEXICO CITY, WINNIPEG

NEW YORK, MONTREAL, DETROIT, MIAMI, BOSTON, PANAMA CITY,

–5h

HAVANA, LIMA, BOGOTA

–4h

CARACAS, LA PAZ, SANTIAGO, PORT OF SPAIN

RIO DE JANEIRO, SAO PAULO, BUENOS AIRES, BRASILIA,

–3h

MONTEVIDEO

–2h

–1h

PRAIA

LONDON, DUBLIN, LISBON, CASABLANCA, DAKAR, ABIDJAN

BERLIN, PARIS, MILAN, ROME, MADRID, AMSTERDAM, ALGIERS,

HAMBURG, FRANKFURT, VIENNA, STOCKHOLM

CAIRO, JERUSALEM, ATHENS, HELSINKI, ISTANBUL, BEIRUT,

DAMASCUS, CAPE TOWN

JEDDAH, KUWAIT, RIYADH, ADEN, ADDIS ABABA, NAIROBI,

MOSCOW

DUBAI, ABU DHABI, MUSCAT

KARACHI, MALE

DHAKA, COLOMBO

BANGKOK, JAKARTA, PHNOM PENH, HANOI, VIENTIANE

HONG KONG, SINGAPORE, KUALA LUMPUR, BEIJING, TAIPEI,

MANILA, PERTH, ULAANBAATAR

TOKYO, SEOUL, PYONGYANG

10h

SYDNEY, MELBOURNE, GUAM, RABAUL

11h

NOUMEA, PORT VILA

12h

WELLINGTON, CHRISTCHURCH, NADI, NAURU ISLAND

• Based on data as of December 2002.