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Countdown timer, Alarms, Operation guide 2836 – G-Shock GL-220-1 User Manual

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Operation Guide 2836

2

Moon/Tide Data Screens

Each press of A in the Moon/Tide Data Mode toggles between the Moon Data
screen and the Tide Data screen.

• When you enter the Moon/Tide Data Mode, the data that appears first is the Moon

data (Moon age and Moon phase indicator) for the current date as kept by the
Timekeeping Mode.

Press A.

Tide Data Screen

Moon Data Screen

Tide gragh

Time

Moon age

Moon phase indicator

Year Month – Day

To view the Moon data for a particular date

While the Moon Data screen is displayed in the Moon/Tide Data Mode, use D (+) and
B (–) to display the date whose Moon data you want to view.

• You can select any date from 2000 to 2039.

To view tide data for a particular time

1. While the Moon Data screen is displayed in the Moon/Tide Data Mode, use D (+)

and B (–) to display the date whose tide data you want to view.

2. Press A to switch to the Tide Data screen.

• The initial screen shows the tide graph for 6:00 AM.

3. Specify the time for which you want to display tide data.

• Use D (+) and B (–) to change the time in one-hour steps.

Countdown Timer

The countdown timer can be set within a range of one
minute to 60 minutes. An alarm sounds when the
countdown reaches zero. The countdown timer has two
modes: auto-repeat and elapsed time, and a progress
beeper signals the progress of the countdown. All of this
makes the countdown timer a valuable tool for timing the
start of a yacht race.

• All of the operations in this section are performed in the

Countdown Timer Mode, which you enter by pressing
C.

Configuring the Countdown Timer

The following are the settings you should configure before actually using the
countdown timer.

Countdown start time and reset time
Timer mode (auto-repeat, elapsed time)
Progress beeper on/off

Timekeeping Mode time

Minutes

Seconds

• See “To configure the countdown timer” for information about setting up the timer.
Reset Time
You can set a “reset time,” which is a kind of alternate countdown start time you can
recall with the press of a button any time a countdown operation is in progress.

Timer Mode
The countdown timer gives you a choice of two modes: auto-repeat and elapsed time.

Auto-repeat

Auto-repeat mode automatically restarts the countdown from the countdown start time
you set whenever zero is reached.

• Auto-repeat mode is best when timing the starts of match races.

• Even if you start a countdown operation from the reset time, the countdown

automatically restarts from the countdown start time whenever it reaches zero.

• Auto repeat timing repeats up to seven times.

Elapsed Time

When the end of the countdown is reached in the elapsed time mode, the timer
automatically switches to an elapsed time measurement operation.

• The elapsed time mode is best when timing the speed of yachts during ocean races.

• The elapsed time operation is performed in one-second increments up to 99 hours,

59 minutes, 59 seconds.

Countdown Timer Beeper Operations

The watch beeps at various times during a countdown so you can keep informed
about the countdown status without looking at the display. The following describes the
types of beeper operations the watch performs during a countdown.

Countdown End Beeper
The watch beeps each second of the final 10 seconds before a countdown reaches
zero, and at zero. The first five beeps (seconds 10 through 6) are higher pitched than
the final five beeps (seconds 5 through 1). The watch emits a longer beep to signal
when the countdown reaches zero.

• The countdown end beeper always sounds, regardless of the on/off status of the

progress beeper.

Progress Beeper
The progress beeper actually includes two beepers: a reset time beeper and a reset
period progress beeper.

• The reset time beeper and reset period progress beeper sound only while the

progress beeper is turned on.

Reset Time Beeper

The reset time beeper is similar to the countdown end beeper. When the progress
beeper is turned on, the watch beeps each second of the final 10 seconds before the
countdown reaches the reset time.

Reset Period Progress Beeper

The reset period is the portion of the countdown between the reset time and zero.
When the progress beeper is turned on, the watch emits four short beeps at the top of
each minute during the reset period, and 30 seconds before the end of the
countdown.

Countdown Timer Examples

Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Auto-repeat;
Progress beeper: On

10'00"

Start Time

Reset Time

0'00"

1'00" 0'30"

2'00"

3'00"

4'00"

5'00"

Reset Period

Reset Period Progress Beeper

Countdown
End Beeper

Reset Time Beeper

Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Elapsed time;
Progress beeper: Off

10'00"

0'00"

5'00"

Countdown
End Beeper

Elapsed time
measurement

Start Time

Reset Time

To configure the countdown timer

1. While the countdown start time is on the display in the

Countdown Timer Mode, hold down A until the
countdown start time setting starts to flash, which
indicates the setting screen.

• If the countdown start time is not displayed, use the

procedure under “To use the countdown timer” to
display it.

2. Press C to move the flashing in the sequence shown

below to select other settings.

Start
Time

Reset

Time

Timer
Mode

Progress

Beeper

3. When the setting you want to change is flashing, use D and B to change it as

described below.

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Setting

Start Time

Reset Time

Timer Mode

Progress
Beeper

Screen

Button Operations

Use D (+) and B (–) to change the setting.

• You can set a start time in the range of 1 to 60 minutes

in 1-minute increments.

Use D (+) and B (–) to change the setting.

• You can set a reset time in the range of 1 to 5 minutes

in 1-minute increments.

Press D to toggle between the auto-repeat mode (

ON)

and the elapsed time mode (

OFF).

• An auto-repeat indicator ( ) appears when the auto-

repeat mode is selected.

Press D to toggle progress beeper on (

ON) and off (OFF).

• A progress beeper indicator ( ) appears when this

setting is turned on.

4. Press A to exit the setting screen.

• The reset time setting must be less than the countdown start time setting.

To use the countdown timer

In the Countdown Timer Mode, press D to start the
countdown timer.

• The countdown timer measurement operation continues

even if you exit the Countdown Timer Mode.

• The table below describes button operations you can

perform to control countdown operations.

To do this:

Stop the countdown operation

Resume a stopped countdown operation

Display the countdown start time

Stop the countdown operation and display the reset time

Start the countdown from the displayed reset time

Do this:

Press D.

Press D again.

While the countdown is
stopped, press B.

Press B.

Press D.

• The table below describes button operations you can perform during an elapsed

time measurement operation in the elapsed time mode.

To do this:

Stop the elapsed time operation

Resume a stopped elapsed time operation

Display the countdown start time

Stop the elapsed time operation and display the reset time

Start the countdown from the displayed reset time

Do this:

Press D.

Press D again.

While the elapsed time is
stopped, press B.

Press B.

Press D.

Alarms

You can set five independent Daily Alarms. When an
alarm is turned on, the alarm tone sounds when the alarm
time is reached. One of the alarms can be configured as a
snooze alarm or a one-time alarm, while the other four are
one-time alarms.
You can also turn on an Hourly Time Signal that causes
the watch to beep twice every hour on the hour, and a
brightness alarm that beeps whenever the watch is moved
from an area where it is dark to an area where it is light.

• There are five alarm screens numbered 1 through 5. The hourly time signal screen

is indicated by

:00. The brightness alarm screen shows ON or OFF.

• When you enter the Alarm Mode, the screen you were viewing when you last exited

the mode appears first.

• All of the operations in this section are performed in the Alarm Mode, which you

enter by pressing C.

Alarm
number

Alarm time
(Hour : Minutes)

Timekeeping Mode time

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