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Operation Guide 5028
Tide Graph
The Tide Graph has six graphic segments, each of which indicates a different tide
level. The current tide level is indicated by the displayed graphic segment.
High Tide
HL
(Rising Tide) (Rising Tide)(Falling 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 Moons 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 ±1
day. 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 Moons 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
Moons transit over the meridian until high tide and the time differential between the
Moons 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
Moons transit over the meridian until high tide.
Button Operation Tone
The button operation tone sounds any time you press one
of the watchs buttons. You can turn the button operation
tone on or off as desired.
Even if you turn off the button operation tone, the alarm,
Hourly Time Signal, and Countdown Timer Mode alarm
all operate normally.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the display), hold down C to toggle
the button operation tone on (
not displayed) and off ( displayed).
Holding down C to turn the button operation tone on or off also causes the watchs
current mode to change.
The
indicator is displayed in all modes when the button operation tone is turned
off.
Auto Return Features
If you leave a screen with flashing digits on the display for two or three minutes
without performing any operation, the watch automatically exits the setting screen.
If you leave the watch in the Moon/Tide Data, Alarm or Hand Setting Mode for two or
three minutes without performing any operation, it automatically changes to the
Timekeeping Mode.
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.
The year can be set in the range of 2000 to 2099.
The watchs 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 watchs batteries 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 batteries.
Anchorage 9.0 8.0 149°W 5:40
Bahamas 5.0 4.0 77°W 7:30
Baja, California 7.0 6.0 110°W 8:40
Bangkok +7.0 +8.0 101°E 4:40
Boston 5.0 4.0 71°W 11:20
Buenos Aires 3.0 2.0 58°W 6:00
Casablanca +0.0 +1.0 8°W 1:30
Christmas Island +14.0 +15.0 158°W 4:00
Dakar +0.0 +1.0 17°W 7:40
Gold Coast +10.0 +11.0 154°E 8:30
Great Barrier Reef, Cairns +10.0 +11.0 146°E 9:40
Guam +10.0 +11.0 145°E 7:40
Hamburg +1.0 +2.0 10°E 4:50
Hong Kong +8.0 +9.0 114°E 9:10
Honolulu 10.0 9.0 158°W 3:40
Jakarta +7.0 +8.0 107°E 0:00
Jeddah +3.0 +4.0 39°E 6:30
Karachi +5.0 +6.0 67°E 10:10
Kona, Hawaii 10.0 9.0 156°W 4:00
Lima 5.0 4.0 77°W 5:20
Lisbon +0.0 +1.0 9°W 2:00
London +0.0 +1.0 0°E 1:10
Los Angeles 8.0 7.0 118°W 9:20
Maldives +5.0 +6.0 74°E 0:10
Manila +8.0 +9.0 121°E 10:30
Mauritius +4.0 +5.0 57°E 0:50
Melbourne +10.0 +11.0 145°E 2:10
Miami 5.0 4.0 80°W 7:30
Noumea +11.0 +12.0 166°E 8:30
Pago Pago 11.0 10.0 171°W 6:40
Palau +9.0 +10.0 135°E 7:30
Panama City 5.0 4.0 80°W 3:00
Papeete 10.0 9.0 150°W 0:10
Rio De Janeiro 3.0 2.0 43°W 3:10
Seattle 8.0 7.0 122°W 4:20
Shanghai +8.0 +9.0 121°E 1:20
Singapore +8.0 +9.0 104°E 10:20
Sydney +10.0 +11.0 151°E 8:40
Tokyo +9.0 +10.0 140°E 5:20
Vancouver 8.0 7.0 123°W 5:10
Wellington +12.0 +13.0 175°E 4:50
Site/Lunitidal Interval Data List
*Based on data as of 2003.
UTC Differential
Lunitidal
Site Standard DST/ Longitude
Interval
Time Summer Time
4


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