Casio Watch Ma0312 Ea Users Manual QW 3318

MA0312-EA to the manual c104bb1b-0e2b-4c43-8da1-efd793258faa

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Operation Guide 3318

1

MA0312-EA

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your

purchase, be sure to carefully read this manual and keep it on hand for later reference

when necessary.

Expose the watch to bright light to charge its battery before using it.

You can use this watch even as its battery is being charged by exposure to bright

light.

•Be sure to read “Battery” for important information you need to know when

exposing the watch to bright light.

Crown

Spacer

After purchasing the watch, be sure to remove the spacer from the crown.

A spacer is inserted under the crown at the factory to keep

the watch in a Power Saving Mode, which conserves

battery power. Remove the spacer as shown in the

illustration to the left before using the watch.

General Guide

•Perform the operations described below to change between modes.

•In the Timekeeping Mode, press A to illuminate the face of the watch.

Crown

Time Setting ModeTimekeeping Mode Power Saving Mode

Pull out

the crown.

No operation

for two or three

minutes

Push in

the crown. Press any

button.

Setting the Current Time

This watch features separate digital and analog timekeeping. The procedures for

setting the digital time and analog time are different.

Setting the Digital Time and Date

The digital display shows the current digital time and date. When setting the digital

time and date, you can also specify 12-hour or 24-hour format, the illumination

duration, and the day of the week language.

•Whenever you need to adjust both the digital and the analog time settings, make

sure you adjust the digital setting first.

To set the digital time and date

1. Pull out the crown so the seconds digits are flashing.

This is the Time Setting Mode.

•The analog hands stop moving when the setting

screen is displayed.

•If the watch is in the Power Saving Mode and the

crown is already pulled out, first press any button to

exit the Power Saving Mode. This will display the

setting screen.

2. Use B to move the flashing in the sequence shown

below to select other settings.

Seconds

Language

Hour Year

Minutes

Day Month

12/24-Hour

Format

Illumination

Duration

Crown

3. When the setting you want to change is flashing, use A to change it as described

below.

Screen

:35

P10:08

12 H

2004

6-30

EN6

To do this:

Reset the seconds to 00

Change the hour or minutes

Toggle between 12-hour (

12H) and 24-hour (24H)

timekeeping

Change the year

Change the month or day

Toggle the illumination duration setting between one

second (x) and three seconds ( )

Change the day of the week language setting

Do this:

Press A.

Use A (+).

Press A.

Use A (+).

Press A.

•See “Day of the Week Languages” for more information.

•Holding down A changes the setting at high speed.

4. Adjust the analog time.

5. After adjusting the digital and analog times, push in the crown to exit the Time

Setting Mode.

•For more information about illumination duration, see “Illumination”.

•The default illumination duration setting is one second when you purchase the

watch and any time after battery power drops to Level 4.

•If you do not perform any button operation for two or three minutes while the setting

screen is on the display, the watch automatically enters the Power Saving Mode.

Day of the Week Languages

You can select one of six different languages (English, Spanish, French, German,

Italian, Russian) for display of the day of the week.

•The default day of the week language when you purchase the watch or after battery

power drops to level 4 is English.

•See the “Day of the Week List” for information about how days of the week are

displayed in each language.

To change the day of the week language setting

1. Pull out the crown so the seconds digits are flashing.

This is the Time Setting Mode.

•The analog hands stop moving when the setting

screen is displayed.

2. Press B eight times to display the language setting

screen.

3. Press A to cycle through the language settings in the

following sequence.

(English) (Spanish) (French)

(Russian) (Italian) (German)

4. Adjust the analog time.

5. After adjusting the analog time, push in the crown to

exit the Time Setting Mode.

Setting the Analog Time

Perform the procedure below when the time indicated by the analog hands does not

match the time of the digital display.

•When (Level 3) is indicated for the battery power level, the second hand moves at

2-second intervals. For details, see “Battery Power Indicator and Recover Indicator”.

To adjust the analog time

1. Pull out the crown so the seconds digits are flashing.

This is the Time Setting Mode.

•The analog hands stop moving when the setting

screen is displayed.

2. Rotate the crown to advance the minute hand to the

setting you want. Move the minute hand so it is four or

five minutes past the point where you will finally set it,

and then rotate the crown in the opposite direction to

move the minute hand back to the setting you want.

3. Press the crown back in when the seconds count on

the digital display matches the current location of the

analog second hand.

•This re-starts analog timekeeping and returns to the

Timekeeping Mode.

Timekeeping

•In the Timekeeping Mode, pressing B cycles through available screen formats as

shown below.

Day of week

PM indicator Day Seconds

Hour : Minutes Battery power indicator

Current TimeCalender Battery Power Indicator

and Seconds Count

Press .

To check the current day of the week language setting and illumination duration

setting

In the Timekeeping Mode, hold down B. This will display a screen like the one shown

below, which shows indicators for the current day of the week language setting and

the illumination duration setting.

•See the “Day of the Week List” for the meaning of each indicator.

•The current illumination duration is indicated as x (one second) or (three seconds).

Language

Illumination duration

Language Setting

Screen

Crown

Language

CrownSecond hand

Hour hand Minute hand

About This Manual

•Button operations are indicated using the letters shown

in the illustration.

•For the sake of simplicity, the sample displays in this

manual do not show the analog hands of the watch.

•Each section of this manual provides you with the

information you need to perform operations in each

mode. Further details and technical information can be

found in the “Reference” section.

Power Saving

indicator

Crown

Battery power

indicator (H/M/L)

•Power Saving is turned on while the crown of the watch

is pulled out.

•Perform the following steps before using the watch for

the first time. If the battery power indicator shows

(Level 3) or if the digital display is totally blank (Level 4),

expose the watch to light until the battery power

indicator changes to (Level 2) or (Level 1) before

performing the following operations.

1. Press any button to exit the Power Saving Mode

and display the digital time setting screen.

2. Set the digital time.

3. Set the analog time.

•See “Power Saving” for more information about the

Power Saving feature and how to use it.

Operation Guide 3318

2

Illumination

Two LEDs (light-emitting diodes) and a light guide panel

illuminate the face of the watch for easy reading in the dark.

The watch’s auto light switch automatically illuminates the

face when you angle the watch towards you for reading.

•The auto light switch must be turned on (indicated by

the auto light switch on indicator) for it to operate.

•See “Illumination Precautions” for more important

information.

To illuminate the face of the watch

In the Timekeeping Mode, press A to illuminate the face

of the watch.

•You can specify one second or three seconds as the

illumination duration. See “To set the digital time and

date” for more information.

•The above operation illuminates the face regardless of

the current auto light switch setting.

About the Auto Light Switch

Turning on the auto light switch causes the face to illuminate, whenever you position

your wrist as described below in any mode. Note that this watch features a “Full Auto

Light,” so the auto light switch operates only when available light is below a certain

level. It does not illuminate the face under bright light.

Moving the watch to a position that is parallel to the ground and then tilting it

towards you more than 40 degrees causes the face to become illuminated.

•Wear the watch on the outside of your wrist.

Auto light

switch on indicator

Parallel to ground More than 40

°

Crown

Power Saving indicator

Important!

•Storing the watch for long periods in an area where there is no light or wearing it in

such a way that it is blocked from exposure to bright light can cause rechargeable

battery power to run down. Be sure that the watch is normally exposed to bright light

whenever possible.

•This watch employs a solar cell that converts light into electricity, which charges a

built-in rechargeable battery. Normally, the rechargeable battery should not need

replacement, but after very long use over a number of years, the rechargeable

battery may lose its ability to achieve a full charge. Should you notice problems with

getting the rechargeable battery to a full charge, contact your dealer or CASIO

distributor about having the rechargeable battery replaced.

•The rechargeable battery should be replaced with a CASIO-specified ML2016

battery only. Other rechargeable batteries can cause damage to the watch.

•The current time and all other settings return to their initial factory defaults whenever

battery power drops to Level 4 and when you have the battery replaced.

•Put the watch into the Power Saving Mode and keep it in an area normally exposed

to bright light when storing it for long periods. This helps to keep the rechargeable

battery from going dead.

Battery Power Indicator and Recover Indicator

The battery power indicator on the display shows you the current status of the

rechargeable battery’s power.

•The battery power indicator appears on the following screens.

Timekeeping Mode’s Battery Power Indicator and Seconds Count screen.

Power Saving Mode screen.

Solar cell

Level

1

2

3

4

Battery Power

Indicator

C

(Charge Soon Alert)

Function Status

All functions enabled.

All functions enabled.

Face illumination and auto

light switch disabled. Second

hand moves at 2-second

intervals. After two or three

days, analog hands will stop,

but digital time will continue to

be kept internally.

All functions, including

timekeeping, are disabled.

•The flashing C indicator at Level 3 tells you that battery power is very low, and that

exposure to bright light for charging is required as soon as possible.

•At Level 4, all functions are disabled and settings return to their initial factory

defaults. Functions are enabled once again after the rechargeable battery is

charged, but you need to set the digital time and date after the battery reaches Level

3 (indicated by flashing C indicator) from Level 4. You will not be able to change the

analog time setting until the battery reaches Level 2 (no C indicator) after dropping

to Level 4.

•Leaving the watch in direct sunlight or some other very strong light source can

cause the battery power indicator to temporarily show a reading that is higher than

the actual battery level. The correct battery power indicator should appear after a

few minutes.

•If you use illumination a number of times during a short period, the recover indicator

(R) appears on the display and illumination becomes disabled until battery power

recovers. After some time, battery power will recover and the recover indicator (R)

will disappear, indicating that the above function is enabled again.

Charging Precautions

Certain charging conditions can cause the watch to become very hot. Avoid leaving

the watch in the areas described below whenever charging its rechargeable battery.

Also note that allowing the watch to become very hot can cause its liquid crystal

display to black out. The appearance of the LCD should become normal again when

the watch returns to a lower temperature.

Warning!

Leaving the watch in bright light to charge its rechargeable battery can cause it

to become quite hot. Take care when handling the watch to avoid burn injury.

The watch can become particularly hot when exposed to the following

conditions for long periods.

•On the dashboard of a car parked in direct sunlight

•Too close to an incandescent lamp

•Under direct sunlight

Charging Guide

After a full charge, timekeeping remains enabled for up to about 6 months.

•The following table shows the amount of time the watch needs to be exposed to light

each day in order to generate enough power for normal daily operations.

Battery power indicator

Recover indicator

Exposure Level (Brightness)

Outdoor Sunlight (50,000 lux)

Sunlight Through a Window (10,000 lux)

Daylight Through a Window on a Cloudy Day (5,000 lux)

Indoor Fluorescent Lighting (500 lux)

Approximate

Exposure Time

8 minutes

30 minutes

48 minutes

8 hours

•Since these are the specs, we can include all the technical details.

• Watch is not exposed to light

• Internal timekeeping

• 1 light operation (1.5 seconds) per day

•Stable operation is promoted by frequent charging.

Recovery Times

The table below shows the amount of exposure that is required to take the battery

from one level to the next.

Level 1

16 hours

60 hours

96 hours

Level 2

17 hours

64 hours

103 hours

Level 4 Level 3

39 hours

146 hours

– – –

Approximate Exposure TimeExposure Level

(Brightness)

Outdoor Sunlight (50,000 lux)

Sunlight Through a Window

(10,000 lux)

Daylight Through a Window on a

Cloudy Day (5,000 lux)

•The above exposure time values are all for reference only. Actual required exposure

times depend on lighting conditions.

Warning!

•Always make sure you are in a safe place whenever you are reading the face

of the watch using the auto light switch. Be especially careful when running or

engaged in any other activity that can result in accident or injury. Also take

care that sudden illumination by the auto light switch does not surprise or

distract others around you.

•When you are wearing the watch, make sure that its auto light switch is turned

off before riding on a bicycle or operating a motorcycle or any other motor

vehicle. Sudden and unintended operation of the auto light switch can create

a distraction, which can result in a traffic accident and serious personal injury.

To turn the auto light switch on and off

In the Timekeeping Mode, hold down A for about two seconds to toggle the auto light

switch on ( displayed) or off ( not displayed).

•The auto light switch is automatically turned off whenever battery power is at Level 3 .

After battery power recovers to Level 2, you will have to perform the above procedure

to turn the auto light switch back on again.

Power Saving

When you do not plan to use the watch for some time,

you can put it into a Power Saving Mode to conserve

battery power. When the watch is in the Power Saving

Mode:

•The Power Saving indicator (PS) flashes on the digital

display.

•Analog timekeeping is disabled.

•Digital timekeeping is maintained.

Note

•Whenever you exit the Power Saving Mode (see below),

be sure to set the correct analog time.

To enter the Power Saving Mode

1. Pull out the crown so the seconds digits are flashing. This is the Time Setting Mode.

2. Do not perform any button operation for about two or three minutes. This will cause

the watch to enter the Power Saving Mode automatically.

To exit the Power Saving Mode

Perform any one of the following operations.

•Press any button

This enters the Time Setting Mode. At this time you could adjust the digital time and

then set the analog time.

•Push in the crown

This enters the Timekeeping Mode.

Battery

This watch is equipped with a solar cell and a rechargeable battery (secondary

battery) that is charged by the electrical power produced by the solar cell. The

illustration shown below shows how you should position the watch for charging.

Example: Orient the watch so its face is

pointing at a light source.

•The illustration shows how to position a

watch with a resin band.

•Note that charging efficiency drops

when any part of the solar cell is

blocked by clothing, etc.

•Normally, you should try to keep the

watch outside of your sleeve as much

as possible. Charging is significantly

reduced if the face is only partially

covered.

Operation Guide 3318

3

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.

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 the A (AM) 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 day of the week is automatically displayed in accordance with the date (year,

month, and day) setting.

•The year can be set in the range of 2000 to 2099.

•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 when battery power drops to Level 4.

Illumination Precautions

•The illumination provided by the light may be hard to see when viewed under direct

sunlight.

•Frequent use of the light shortens the battery operating time.

Auto light switch precautions

•The auto light switch is automatically turned off

whenever battery power is at Level 3.

•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

illuminate the face of the watch. To avoid running down

the battery, turn off the auto light switch whenever

engaging in activities that might cause frequent

illumination of the face.

•Note that wearing the watch under your sleeve while the

auto light switch is turned on can cause frequent

illumination of the face and can run down the battery.

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

more than 15 degrees above or below parallel. Make

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

•Illumination turns off after the preset illumination duration (see “To set the digital time

and date”), 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 your face 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.

Day of the Week List

More than 15 degrees

too high

Indicator

Language

Sunday Monday Tuesday

Wednesday

Thursday

Friday

Saturday

English

Spanish

French

German

Italian

Russian