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Manual Casio AQ-230GA-9DMQEF Watch

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Manual

Operation Guide 5154

E-13

Dual Time Mode

The Dual Time function lets you set a second digital time

that operates independently of the current analog and digital

times. This means you can keep track of time in another

time zone.

To set the Dual Time

In the Dual Time Mode, hold down 1. C until the hour digits

start to ﬂ ash on the display. The hour digits ﬂ ash because

they are selected.

Press 2. C to change the selection in the following

sequence.

12/24-Hour Format

MinutesHour

Dual Time Mode

SecondsHour

Minutes

Mode indicator

E-12

While the Daily Alarm/Hourly Time Signal setting is selected, press 4. B to change

the status in the following sequence.

Alarm On Indicator/Hourly Time Signal On Indicator

BBB

Both On Both Off Daily Alarm only Hourly Time

Signal only

After you conﬁ gure your alarm setting, press 5. C to select the Alarm Mode.

If you do not operate any button for a few minutes while a selection is ﬂ ashing, x

the ﬂ ashing stops and the watch goes back to the Timekeeping Mode screen

automatically.

To test the alarm

Hold down B in any mode to sound the alarm. Note that pressing B also changes

the mode.

E-11

Press 2. C to change the selection in the following sequence.

Minutes (tens digit)

Alarm/Hourly Time Signal

Minutes (ones digit)

Hour

Alarm Mode

Once you reach the Alarm Mode screen, you have to hold down x C again to

display the ﬂ ashing hour.

Press 3. B to increase the selected digits. Holding down B changes the selection

at high speed.

The format (12-hour or 24-hour) of the alarm time matches the format you select x

for digital timekeeping.

When setting the alarm time using the 12-hour format, take care to set the time x

correctly as a.m. (no indicator) or p.m. (PM indicator).

E-10

Alarm Mode

While the Daily Alarm function is switched on, the alarm

sounds for 20 seconds at the preset time each day. Press

any button to stop the alarm after it starts to sound. When

the Hourly Time Signal is switched on, the watch beeps

every hour on the hour. Note that the Daily Alarm and

the Hourly Time Signal operate based on the digital time

setting.

To set the alarm time

In the Alarm Mode, hold down 1. C until the hour digits

start to ﬂ ash on the display. The hour digits ﬂ ash

because they are selected.

Mode indicator

Hour Minutes

Alarm on indicator

Hourly Time Signal on

indicator

E-9

While the month or day digits are selected (ﬂ ashing), press 3. B to increase the

number. While the day of the week is selected, pressing B advances to the next

day of the week. Holding down B changes the current selection at high speed.

After you set the date, press 4. C to display the Date Indicator Mode screen.

The watch does not make any allowance for leap years. Be sure to manually set x

February 29 (when one occurs) for the appropriate date.

If you do not operate any button for a few minutes while a selection is ﬂ ashing, the x

ﬂ ashing stops and the watch goes back to the Timekeeping Mode automatically.

E-8

Date Indicator Mode

To set the date

In the Date Indicator Mode, hold down 1. C until the

month digits start to ﬂ ash on the digital display. The

month digits ﬂ ash because they are selected.

Press 2. C to change the selection in the following

sequence.

Day

Day of the

week

Month

Date Indicator

Mode

Once you reach the Date Indicator Mode screen, you x

have to hold down C again to display the ﬂ ashing

month.

Day of the weekMonth

Day

E-7

While the seconds digits are selected (ﬂ ashing), press 3. B to reset the seconds to

“00”. If you press B while the second count is in the range of 30 to 59, it is reset to

“00” and 1 is added to the minutes. If the second count is in the range of 00 to 29,

the minute count is unchanged.

While any other digits (besides seconds) are selected (ﬂ ashing), press 4. B to

increase the number. Holding down B changes the current selection at high

speed. While the 12/24 hour setting is selected, press B to switch between the

two formats.

After you set the time and format, press 5. C to display the Timekeeping Mode

screen.

If you do not operate any button for a few minutes while a selection is ﬂ ashing, x

the ﬂ ashing stops and the watch goes back to the Timekeeping Mode screen

automatically.

To set the analog time

When in any mode, press A to advance the analog time setting.

Hold down A advances the analog setting at high speed. You can only advance the

setting and cannot reverse it.

E-6

Timekeeping Mode

To set the digital time

In the Timekeeping Mode, hold down 1. C until the

seconds digits start to ﬂ ash on the digital display.

The seconds ﬂ ash because they are selected.

Press 2. C to change the selection in the following

sequence.

Hour

12/24-Hour Format

Minutes

Seconds

Timekeeping Mode

Once you reach the Timekeeping Mode screen, you x

have to hold down C again to display the ﬂ ashing

seconds.

Hour hand

Minute hand

Seconds

Hour

Minutes

PM indicator

E-5

General Guide

Press x B to change from mode to mode. Each mode is explained in detail on the

following pages.

Timekeeping Mode

Date Indicator Mode Alarm Mode

Dual Time ModeStopwatch Mode

B B

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Specifications

Brand	Casio
Model	AQ-230GA-9DMQEF
Category	Watches
File type	PDF
File size	0.11 MB

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Frequently Asked Questions about Casio AQ-230GA-9DMQEF Watch

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A battery in my device is oxidized, can I still safely use it? Verified

Ja, the device can still be safely used. Firstly, remove the oxidizd battery. Never use bare hands to do this. Then clean the battery compartment with a cotton swab dipped in vinegar or lemon juice. Let it dry and insert new batteries.

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My mechanical watch runs fast, what can I do? Verified

This might be caused by exposure to a magnetic field. It can be solved by a demagnetisation process performed by a professional watchmaker.

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What do AM and PM stand for? Verified

AM stands for Ante Meridiem and indicates that the time is before midday. PM stands for Post Meridiem and indicates that the time is past midday.

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What is a 'Chronograph'? Verified

A 'Chronograph' is literally a 'writer of time'. The term is used to describe clocks and watches that tell the time of day as well as measure a certain period of time, like a stopwatch.

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What is GMT? Verified

GMT stands for Greenwich Mean Time (sometimes called UTC, standing for Coordinated Universal Time). It is the time for the longitude 0, that passes through Greenwich near London.

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What is a quartz movement? Verified

Watches and clocks with a quartz movement are driven by a battery. This sends an electric current through quartz crystals that will vibrate. These vibrations are passed on to the movement. Because the vibrations have a fixed frequency, watches and clocks with a quartz movement are extremely precise.

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There is moisture on the inside of the glass of my Casio watch, what should I do? Verified

Casio states that if the moisture appeared after an extreme change in temperature and disappears relatively quickly afterwards, there is probably nothing wrong. If the moisture does not disappear, you should have your watch repaired as soon as possible.

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