Casio W753-1AV Manual de instrucciones - Página 4

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Operation Guide 2926

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.

Moon Phase Indicator

The Moon phase indicator of this watch indicates the current phase of the Moon as

shown below.

(part you cannot see)

Moon Phase

Indicator

Moon Age

0, 1, 29

2 - 5

6 - 9

Moon Phase

New

First

Moon

Quarter

(Waxing)

• The Moon phase indicator shows the Moon as viewed at noon from a position in the

Northern Hemisphere looking south. Note that at times the image shown by the

Moon phase indicator may differ from that of the actual Moon in your area.

• The left-right orientation of the Moon phase is reversed when viewing from the

Southern Hemisphere or from a point near the equator.

Moon Phases and Moon Age

The Moon goes through a regular cycle that averages 29.53 days. During each cycle,

the Moon appears to wax and wane as the relative positioning of the Earth, Moon, and

Sun changes. The greater the angular distance between the Moon and the Sun,

more we see illuminated.

The angle to the Moon in relation to the direction at which the Sun is visible from the

Earth.

This watch performs a rough calculation of the current Moon age starting from day 0

of the moon age cycle. Since this watch performs calculations using integer values

only (no fractions), the margin for error of the displayed Moon age is ±3 days.

Tide Graph

The black bars on the watch's tide graph indicate the current tide.

Low

tide

Tidal Movements

Tides are the periodic rise and fall of the water of oceans, seas, bays, and other

bodies of water caused mainly by the gravitational interactions between the Earth,

Moon and Sun. Tides rise and fall about every six hours. The tide graph of this watch

indicates tidal movement based on the Moon's transit over a meridian and the lunitidal

interval. The lunitidal interval differs according to your current location, so you must

specify a lunitidal interval in order to obtain the correct tide graph readings.

• The tide graph displayed by this watch is based on the current Moon age.

Remember that the margin for error of the Moon age displayed by this watch is ±3

days. The greater the error in a particular Moon age, the greater the error in the

resulting tide graph.

Lunitidal Interval

Theoretically, high tide is at the Moon's transit over the meridian and low tide is about

six hours later. Actual high tide occurs somewhat later, due to factors such as

viscosity, friction, and underwater topography. Both the time differential between the

Moon's transit over the meridian until high tide and the time differential between the

Moon's transit over the meridian until low tide are known as the "lunitidal interval."

When setting the lunitidal interval for this watch, use the time differential between the

Moon's transit over the meridian until high tide.

Auto Return Feature

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 B and D 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

• Resetting the seconds to 00 while the current count is in the range of 30 to 59

causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are

reset to 00 without changing the minutes.

• With the 12-hour format, the P (PM) indicator appears on the display for times in the

range of noon to 11:59 p.m. and no indicator appears for times in the range of

midnight to 11:59 a.m.

• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without

any indicator.

• The year can be set in the range of 2000 to 2039.

• The watch's built-in full automatic calendar 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.

Illumination Precautions

• Illumination may be hard to see when viewed under direct sunlight.

• Illumination automatically turns off whenever an alarm sounds.

• Frequent use of illumination runs down the battery.

Moon phase (part you can see)

10 - 13 14 - 16 17 - 20 21 - 24 25 - 28

Full

Last

Moon

Quarter

(Waning)

the

High

tide

Auto light switch precautions

• Wearing the watch on the inside of your wrist, movement of your arm, or vibration of

your arm can cause frequent activation of the auto light switch and illumination of the

display. To avoid running down the battery, turn off the auto light switch whenever

engaging in activities that might cause frequent illumination of the display.

• Illumination may not turn on if the face of the watch is

More than 15 degrees

more than 15 degrees above or below parallel. Make

too high

sure that the back of your hand is parallel to the ground.

• Illumination turns off in about one second, even if you

keep the watch pointed towards your face.

• Static electricity or magnetic force can interfere with

proper operation of the auto light switch. If illumination

does not turn on, try moving the watch back to the

starting position (parallel with the ground) and then tilt it

back towards you again. If this does not work, drop your

arm all the way down so it hangs at your side, and then

bring it back up again.

• Under certain conditions, illumination may not turn on until about one second after

you turn the face of the watch towards you. This does not necessarily indicate

malfunction of the auto light switch.

• You may notice a very faint clicking sound coming from the watch when it is shaken

back and forth. This sound is caused by mechanical operation of the auto light

switch, and does not indicate a problem with the watch.

Site/Lunitidal Interval Data List

GMT Differential

Site

Standard

Time

Anchorage

–9.0

Bahamas

–5.0

Baja, California

–7.0

Bangkok

+7.0

Boston

–5.0

Buenos Aires

–3.0

Casablanca

+0.0

Christmas Island

+14.0

Dakar

+0.0

Gold Coast

+10.0

Great Barrier Reef, Cairns

+10.0

Guam

+10.0

Hamburg

+1.0

Hong Kong

+8.0

Honolulu

–10.0

Jakarta

+7.0

Jeddah

+3.0

Karachi

+5.0

Kona, Hawaii

–10.0

Lima

–5.0

Lisbon

+0.0

London

+0.0

Los Angeles

–8.0

Maldives

+5.0

Manila

+8.0

Mauritius

+4.0

Melbourne

+10.0

Miami

–5.0

Noumea

+11.0

Pago Pago

–11.0

Palau

+9.0

Panama City

–5.0

Papeete

–10.0

Rio De Janeiro

–3.0

Seattle

–8.0

Shanghai

+8.0

Singapore

+8.0

Sydney

+10.0

Tokyo

+9.0

Vancouver

–8.0

Wellington

+12.0

•

Based on data as of 2003.

This watch does not support a GMT differential of +15.0.

Lunitidal

DST/

Longitude

Interval

Summer Time

–8.0

149°W