Casio 3281 User Manual

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MO1104-EA

Operation Guide 3261 3281

ENGLISH

Congratulations upon your selection of this CASIO watch.

E-1

• The measurement functions built into this watch are not intended for taking

measurements that require professional or industrial precision. Values produced by this watch should be considered as reasonable representations only.

• The Moon phase indicator that appears on the display of this watch is not

intended for navigation purposes. Always use proper instruments and resources to obtain data for navigation purposes.

• When engaging in mountain climbing or other activities in which losing your

way can create a dangerous or life-threatening situation, always use a second compass to confirm direction readings.

• Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any

damage or loss suffered by you or any third party arising through the use of this product or its malfunction.

E-2

Warning !

Things to check before using the watch

1. Check the battery power level.

Is “H” or “M” displayed for the battery power indicator (page E-14)?

Does any one of the following conditions exist?

• Battery power indicator shows “L” and “

displayed in the upper right corner of the screen.

CHG

• “

” is displayed in the upper right corner of the screen.

• The face is blank.

Power is low. Charge the watch by placing it in a location where it is exposed to light. For details, see “Charging the Watch” (page E-12).

E-4

NO YES

YES

LOW

” is

Battery power indicator

The watch is charged sufficiently. For details about charging, see “Charging the Watch” (page E-12).

Go to step 2.

Contents

E-3 About This Manual

E-4 Things to check before using the watch

E-12 Charging the Watch

E-19 To recover from the sleep state E-20 To turn Power Saving on and off

E-21 Mode Reference Guide

E-25 Timekeeping

E-26 Configuring Home City Settings

E-26 To configure Home City settings E-28 To change the Daylight Saving Time (summer time) setting

About This Manual

• Depending on the model of your watch, display text appears either as dark figures

on a light background (Module 3261), or light figures on a dark background (Module 3281). All of the illustrations in this manual show Module 3261.

• Button operations are indicated using the letters shown in the illustration.

• Note that the product illustrations in this manual are intended for reference only,

and so the actual product may appear somewhat different than depicted by an illustration.

Module 3261 Module 3281

2. Check the Home City and the daylight saving time (DST) setting.

Use the procedure under “To configure Home City settings” (page E-26) to configure your Home City and daylight saving time settings.

Important!

World Time Mode data depend on correct Home City, time, and date settings in the Timekeeping Mode. Make sure you configure these settings correctly.

3. Set the current time.

• To set the time manually

See “Configuring Current Time and Date Settings” (page E-29).

The watch is now ready for use.

E-29 Configuring Current Time and Date Settings

E-29 To change the current time and date settings

E-33 Digital Compass

E-34 To take a digital compass reading E-40 To perform magnetic declination correction E-42 To perform bidirectional calibration E-43 To perform northerly calibration E-46 To store a direction angle reading in Bearing Memory E-48 To set a map and find your current location E-50 To find the bearing to an objective E-52 To determine the direction angle to an objective on a map and head in

that direction

E-3

E-5

E-6

E-57 Thermometer

E-57 To enter and exit the Digital Compass/Thermometer Mode E-59 To calibrate the temperature sensor

E-61 Specifying Temperature Unit

E-61 To specify temperature unit

E-63 Temperature Reading Precautions

E-64 Using the Moon Data

E-64 To enter the Moon Data Mode E-67 To reverse the displayed Moon phase

E-71 Checking the Current Time in a Different Time Zone

E-71 To enter the World Time Mode E-72 To view the time in another time zone E-72 To specify standard time or daylight saving time (DST) for a city

E-8

E-74 Using the Stopwatch

E-74 To enter the Stopwatch Mode E-74 To perform an elapsed time operation E-75 To pause at a split time E-75 To measure two finishes

E-77 Using the Countdown Timer

E-77 To enter the Countdown Timer Mode E-78 To specify the countdown start time E-79 To perform a countdown timer operation E-79 To stop the alarm

E-7

E-9

Operation Guide 3261 3281

E-80 Using the Alarm

E-80 To enter the Alarm Mode E-81 To set an alarm time E-82 To test the alarm E-82 To turn an alarm and the Hourly Time Signal on and off E-83 To stop the alarm

E-84 Illumination

E-84 To turn on illumination manually E-85 To change the illumination duration E-88 To turn the auto light switch on and off

E-91 Graphic Area

E-92 Button Operation Tone

E-93 To turn the button operation tone on and off

E-10

Charging the Watch

The face of the watch is a solar cell that generates power from light. The generated power charges a built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed to light.

Charging Guide

Whenever you are not wearing the watch, leave it in a location where it is exposed to light.

• Best charging performance

is achieved by exposing the watch to the strongest light available.

E-12

Power Levels

You can get an idea of the watch’s power level by observing the battery power indicator on the display.

Battery power

Battery power indicator

indicator

E-14

Battery Power

Level

Indicator

(H)

(M)

(L)

(C)

5 All functions disabled.

When wearing the watch, make sure that its face is not blocked from light by the sleeve of your clothing.

• The watch may enter a

sleep state (page E-18) if its face is blocked by your sleeve even only partially.

Function Status

All functions enabled.

Illumination, beeper, and sensor operation disabled.

Except for the indicator, all functions and display indicators disabled.

CHG

(charge)

E-94 Troubleshooting

E-99 Specifications

E-11

Warning! Leaving the watch in bright light for charging 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

Important!

• 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.

• Turn on the watch’s Power Saving function (page E-18) and keep it in an area

normally exposed to bright light when storing it for long periods. This helps to ensure that power does not run down.

• 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 light can cause power to run down. Expose the watch to bright light whenever possible.

E-13

• The flashing

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

• At Level 4 or Level 5, all functions are disabled and settings return to their initial

factory defaults. Once the battery reaches Level 2 (M) after falling to Level 4 or Level 5, reconfigure the current time, date, and other settings.

• If charging starts from Level 5,

is reached. Note, however, that watch functions are not restored at this time. Leave the watch exposed to sufficiently strong light until the battery level reaches Level 2 or Level 1 before using it.

• Leaving the watch exposed to direct sunlight or some other very strong light source

can cause the battery power indicator to show a reading temporarily that is higher than the actual battery level. The correct battery level should be indicated after a few minutes.

• All data stored in memory is deleted, and the current time and all other settings

return to their initial factory defaults whenever battery power drops to Level 4 or Level 5, and when you have the battery replaced.

LOW

indicator at Level 3 (L) tells you that battery power is very low,

CHG

will start flashing on the display when Level 4

E-15

Power Recovery Mode

• Performing multiple sensor, illumination, or beeper operations during a short period

may cause all of the battery power indicators (H,M, and L) to start flashing on the display. This indicates that the watch is in the power recovery mode. Illumination, alarm, countdown timer alarm, hourly time signal, and sensor operations will be disabled until battery power recovers.

• Battery power will recover in about 15 minutes. At this time, the battery power

indicators (H,M,L) will stop flashing. This indicates that the functions listed above are enabled again.

• If all of the battery power indicators (H,M,L) are flashing and the

indicator also is flashing, it means the battery level is very low. Expose the watch to bright light as soon as possible.

• Even if battery power is at Level 1 (H) or Level 2 (M), the Digital Compass/

Thermometer Mode sensor may be disabled if there is not enough voltage available to power it sufficiently. This is indicated when all of the battery power indicators (H,

M,L

) are flashing.

• Frequent flashing of all of the battery power indicators (H,M,L) probably means

that remaining battery power is low. Leave the watch in bright light to allow it to charge.

E-16

• The above exposure times all are for reference only. Actual exposure times depend

on lighting conditions.

• For details about the operating time and daily operating conditions, see the “Power

Supply” section of the Specifications (page E-101).

Power Saving

When turned on, Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area where it is dark. The table below shows how watch functions are affected by Power Saving.

• There actually are two sleep state levels: “display sleep” and “function sleep”.

Elapsed Time in Dark Display Operation

60 to 70 minutes (display sleep)

6 or 7 days (function sleep)

E-18

Blank, with PS flashing

Blank, with PS not flashing

Display is off, but all functions are enabled.

All functions are disabled, but timekeeping is maintained.

CHG

(charge)

Charging Times

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)

*1 Approximate amount of exposure time required each day to generate enough

power for normal daily operation.

*2 Approximate amount of exposure time (in hours) required to take power from one

level to the next.

• The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is

already in a sleep state when 6:00 AM arrives, however, it will remain in the sleep state.

• The watch will not enter a sleep state while it is in the Stopwatch Mode or

Countdown Timer Mode.

To recover from the sleep state

Move the watch to a well-lit area, press any button, or angle the watch towards your face for reading (page E-86).

Daily

Operation

Level 5 Level 4 Level 3 Level 2 Level 1

5 min. 2 hours 16 hours 5 hours

24 min. 6 hours 79 hours 21 hours

48 min. 12 hours

8 hours 168 hours – – – – – –

Level Change *2

159 hours

43 hours

E-17

E-19

Operation Guide 3261 3281

To turn Power Saving on and off

Power saving

Power saving on indicator

on indicator

E-20

Selecting a Mode

World Time Mode

Stopwatch Mode

E-22

General Functions (All Modes)

The functions and operations described in this section can be used in all of the modes.

Auto Return Features

• The watch returns to the Timekeeping Mode automatically if you do not perform any

button operation for two or three minutes in the Alarm, or Moon Data Mode.

• If you leave a screen with flashing digits on the display for two or three minutes

without performing any operation, the watch exits the setting screen automatically.

Initial Screens

When you enter the World Time or Alarm Mode, the data you were viewing when you last exited the mode appears first.

Scrolling

TheE and B buttons are used on the setting screen 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.

1. In the Timekeeping Mode, hold down A until starts to flash and the city name starts to scroll on the display.

• This is the setting screen.

2. Use D to display the Power Saving On/Off screen shown nearby.

3. Press E to toggle Power Saving on (On) and off (

4. Press A to exit the setting screen.

• The Power Sav ing on indicato r (PS) is on the display

in all modes w hile Power Sav ing is turned o n.

Moon Data Mode

Countdown Timer

Mode

Timekeeping Mode

Alarm Mode

SET

OFF

Mode Reference Guide

Your watch has 7 “modes”. The mode you should select depends on what you want to do.

To do this: Enter this mode: See:

• View the current date in the Home City

• Configure Home City and daylight saving time (DST) settings

• Configure time and date settings

•

Determine your current bearing or the direction from your current location to a destination as a direction indicator and angle value

• Determine your current location using the watch and a map

• View the temperature at your current location

View the current time in one of 48 cities (31 time zones) around the globe Use the stopwatch to measure elapsed time Stopwatch Mode E-74 Use the countdown timer Set an alarm time Alarm Mode E-80

• The illustration below shows which buttons you need to press to navigate between

modes.

• Press D to change from mode to mode.

• Hold down D for about two seconds to return to the Timekeeping Mode from any

other mode.

• In any mode, press C to enter the Digital Compass/Thermometer Mode. Press

in the Digital Compass/Thermometer Mode to return to the mode you entered from.

• In any mode (except when a setting screen is on the display), press B to illuminate

the display.

Press

Digital Compass/

Thermometer Mode

Timekeeping Mode E-25

Digital Compass/ Thermometer Mode

World Time Mode E-71

Countdown Timer Mode

E-33

E-57

E-77

E-21

E-23

Timekeeping

Use the Timekeeping Mode to set and view the current time and date.

• Press A to toggle between the day of the week and date (Date screen), and the

currently selected World Time (Dual Time).

Date Screen Dual Time Screen

Day of week

PM indicator

Month – Day

Hour : Minutes Seconds

Dual time

E-24

Configuring Home City Settings

City name

Hour : Minutes

PM indicator

E-26

To change the Daylight Saving Time (summer time) setting

E-28

There are two Home City settings: actually selecting the Home City and selecting either standard time or daylight saving time (DST).

To configure Home City settings

1. In the Timekeeping Mode, hold down A until starts to flash and the city name starts to scroll on the

Seconds

display.

• This is the setting screen.

• The watch will exi t the setti ng mode autom atically if

you do not per form any op eration for a bout two o r three minutes.

• For detail s about cit y names, se e the “Cit y Code

Table” at the back of thi s manual.

1. In the Timekeeping Mode, hold down A until starts to flash and the city name starts to scroll on the display.

• This is the setting screen.

2. Press D to display the DST setting screen.

3. Use A to toggle the DST settings between

4. After all the settings are the way you want, press A to return to the Timekeeping Mode.

• The DST indicator ap pears to indic ate that Daylight

Saving Tim e is turned on .

OFF

SET

and

2. Press E (East) and B (West) to select the city name you want to use as your Home City.

• Keep pressin g E or B until the cit y name you wan t to select as you r Home

City appears on the display.

3. Press D to display the DST setting screen.

4. Use A to toggle the DST settings between

• Note that you c annot switc h between s tandard tim e and daylight s aving time

(DST) w hile UTC is sel ected as your H ome Cit y.

5. After all the settings are the way you want, press A to return to the Timekeeping Mode.

• The DST indicator a ppears to indic ate that Dayligh t Saving Tim e is turned on.

Note

• After you sp ecify a cit y name, the wa tch will use UTC * offset s in the World Ti me

Mode to calcu late the curren t time for oth er time zone s based on the cu rrent time in your H ome Cit y.

* Coordinated Universal Time, the world-wide scientific standard of timekeeping.

The reference point for UTC is Greenwich, England.

OFF

and On.

Configuring Current Time and Date Settings

You can use the procedure below to adjust the Timekeeping Mode time and date settings if they are off.

To change the current time and date settings

City name

Hour : Minutes

PM indicator

1. In the Timekeeping Mode, hold down A until starts to flash and the city name starts to scroll on the display.

• This is the setting screen.

2. Use E and B to select the city name you want.

• Select you r Home Cit y name befo re changing an y

other setting.

• For full info rmation o n city nam es, see the “ City

Seconds

Code Table” at the bac k of this manu al.

E-25

E-27

SET

E-29

Operation Guide 3261 3281

3. Press D to move the flashing in the sequence shown below to select the other settings.

City Name

Thermometer unit

DST

Power Saving

12/24-Hour Format

Seconds Minutes

Illumination Duration

Hour

Button Operation Tone On/Off

Year

Day Month

• The follow ing steps expla in how to conf igure timeke eping set tings only.

4. When the timekeeping setting you want to change is flashing, use E and/or B to change it as described below.

Screen To do this: Do this:

Change the city name

Toggle between Daylight Saving Time (On) and Standard Time (

OFF

UseE (East) and

(West).

PressE.

E-30

• While 12-ho ur format is s elected for t imekeepin g, a P (PM) indicator will appear

for times fro m noon to 11:59 p.m. No ind icator appe ars for time s from midnig ht to 11:59 a.m. With 24- hour forma t, time is disp layed from 0:0 0 to 23:59, w ithout any P (PM) indicator.

• The watch’s built- in full autom atic calenda r makes allowa nces for dif ferent

month leng ths and leap ye ars. Once yo u set the date, th ere should be n o reason to chan ge it except afte r you have the watch’s recha rgeable bat tery replaced or af ter power dro ps to Level 5 (page E-14).

E-32

To take a digital compass reading

Temperature

North

North pointer

pointer

Angle value (in degrees)

E-34

12 o’clock

12 o’clock position

position

NNW

NW W

270

WSW

SSW

ESE

180

1. Place the watch on a flat surface. If you are wearing the watch, make sure that your wrist is horizontal (in

Direction

Direction indicator

indicator

NNE

relation to the horizon).

2. Point the 12 o’clock position of the watch in the direction you want to check.

3. Press C to enter the Digital Compass/Thermometer Mode and take a digital compass reading.

• COMP will appear on th e display to indic ate that a

digital co mpass operat ion is in prog ress.

• See “Dig ital Comp ass Reading s” on page E- 35 for

informati on about wh at appears o n the display.

Note

• If a value appea rs to the right of t he direction

indicator, it mea ns that the bea ring memo ry (page E-45) s creen is displ ayed. If this happ ens, press

to exit the bear ing memor y screen.

Screen To do this: Do this:

Toggle between 12-hour (

24H

(

) timekeeping.

Reset the seconds to

Change the hour or minutes

Change the year, month, or day

12H

) and 24-hour

PressE.

UseE (+) and (–).

5. Press A to exit the setting screen.

Note

• For inform ation abo ut selectin g a Home Cit y and confi guring the D ST setti ng,

see “Conf iguring Ho me City S ettings” ( page E-26).

E-31

Digital Compass

A built-in bearing sensor detects magnetic north at regular intervals and indicates one of 16 directions on the display.

• The watch also takes temperature readings in the Digital Compass/Thermometer

Mode. For more information, see “Thermometer” (page E-57).

E-33

4. After you are finished using the digital compass, press D to return to the mode you

entered the Digital Compass/Thermometer Mode from.

Digital Compass Readings

• When you press Cto start digital compass measurement,

the display initially to indicate that a digital compass operation is in progress.

• About two seconds after you start a digital compass measurement operation, letters

on the display will indicate the direction that the 12 o’clock position of the watch is pointing. Four pointers that indicate magnetic north, south, east, and west also will appear.

• After the first reading is obtained, the watch will continue to take digital compass

readings automatically each second for up to 20 seconds. After that, measurement will stop automatically.

• The direction indicator and angle value will show

compass readings are complete.

• The auto light switch is disabled during the 20 seconds that digital compass

readings are being taken.

COMP

- - -

to indicate that digital

will appear on

E-35

• The following table shows the meanings of each of the direction abbreviations that

appear on the display.

Direction Meaning Direction Meaning Direction Meaning Direction Meaning

North

East

South

West

• The margin of error for the angle value and the direction indicator is ±11 degrees

while the watch is horizontal (in relation to the horizon). If the indicated direction is northwest (NW) and 315 degrees, for example, the actual direction can be anywhere from 304 to 326 degrees.

NNE

ESE

SSW

WNW

North-

northeast

East-

southeast

South-

southwest

West-

northwest

Northeast

Southeast

Southwest

Northwest

ENE

SSE

WSW

NNW

East-

northeast

South-

southeast

West-

southwest

North-

northwest

E-36

Magnetic Declination Correction

•

With magnetic declination correction, you input a magnetic declination angle (difference between magnetic north and true north), which allows the watch to indicate true north. You can perform this procedure when the magnetic declination angle is indicated on the map you are using. Note that you can input the declination angle in whole degree units only, so you may need to round off the value specified on the map. If your map indicates the declination angle as 7.4°, you should input 7°. In the case of 7.6° input 8°, for 7.5° you can input 7° or 8°.

Bidirectional Calibration and Northerly Calibration

•

Bidirectional calibration and northerly calibration calibrate the accuracy of the bearing sensor in relation to magnetic north. Use bidirectional calibration when you want to take readings within an area exposed to magnetic force. This type of calibration should be used if the watch becomes magnetized for any reason. With northerly calibration, you “teach” the watch which way is north (which you have to determine with another compass or some other means).

E-38

• Note that taking a measurement while the watch is not horizontal (in relation to the

horizon) can result in large measurement error.

• You can calibrate the bearing sensor if you suspect the direction reading is

incorrect.

• Any ongoing direction measurement operation is paused temporarily while the

watch is performing an alert operation (daily alarm, Hourly Time Signal, countdown timer alarm) or while illumination is turned on (by pressing B). The measurement operation resumes for its remaining duration after the operation that caused it to pause is finished.

• See “Digital Compass Precautions” (page E-54) for important information about

taking direction readings.

Calibrating the Bearing Sensor

You should calibrate the bearing sensor whenever you feel that the direction readings being produced by the watch are off. There are three different calibration methods available: magnetic declination correction, bidirectional calibration, and northerly calibration.

E-37

Important!

The more correctly you perform bidirectional calibration, the better the accuracy of the bearing sensor readouts. You should perform bidirectional calibration whenever you change environments where you use the bearing sensor, and whenever you feel that the bearing sensor is producing incorrect readings.

E-39

Operation Guide 3261 3281

To perform magnetic declination correction

Magnetic declination

Magnetic declination angle direction value

angle direction value (E, W, or OFF)

(E, W, or OFF)

Magnetic declination

Magnetic declination angle value

angle value

E-40

To perform bidirectional calibration

E-42

3. Place the watch on a level surface, and position it so that its 12 o’clock position points north (as measured with another compass).

4. Press C to start the calibration operation.

• - - - is shown on t he display whil e calibratio n is being per formed. W hen

calibratio n is success ful, the disp lay will show OK and th en take direc tion and temperature re adings.

E-44

1. In the Digital Compass/Thermometer Mode, hold down

until the current magnetic declination settings start

to flash on the display. This is the setting screen.

2. Use E (East) and B (West) to change the settings.

• The follow ing explains m agnetic dec lination an gle

direction settings.

OFF

: No magnetic declination correction performed.

The magnetic declination angle with this setting is 0°.

: When magnetic north is to the east (east

declination)

: When magnetic north is to the west (west

declination)

• You can select a valu e within the ra nge of W 90 ° to

E 90° wit h these set tings.

• You can turn off (OFF) m agnetic decl ination

correction by pressing E and B at the same ti me.

1. In the Digital Compass/Thermometer Mode, hold down

until the current magnetic declination settings start

to flash on the display. This is the setting screen.

2. Press D to display the bidirectional calibration screen.

• At this time, th e north po inter flashe s at the 12 o’clock

position a nd the display w ill show -1- to indicate that the watch is ready to ca librate the fir st direction .

3. Place the watch on a level surface facing any direction you want, and press C to calibrate the first direction.

• - - - is shown on t he display whil e calibratio n is

being per formed. W hen calibrat ion is succe ssful, the display will show OK and -2-, and the north pointer flas hing at the 6 o’clock p osition. T his means that the watch is rea dy for calibrat ion of the se cond direction.

4. Rotate the watch 180 degrees.

• The illustra tion, for exam ple, shows th e value you sho uld input and t he directio n

setting yo u should sel ect when th e map shows a ma gnetic decli nation of 1° West.

3. When the setting is the way you want, press A to exit the setting screen and take direction and temperature readings.

Precautions about bidirectional calibration

• You can use any two opposing directions for bidirectional calibration. You must,

however, make sure that they are 180 degrees opposite each other. Remember that if you perform the procedure incorrectly, you will get wrong bearing sensor readings.

• Do not move the watch while calibration of either direction is in progress.

• You should perform bidirectional calibration in an environment that is the same as

that where you plan to be taking direction readings. If you plan to take direction readings in an open field, for example, calibrate in an open field.

E-41

5. Press C again to calibrate the second direction.

• - - - is shown on t he display whil e calibratio n is being per formed. W hen

calibratio n is success ful, the disp lay will show OK and th en take direc tion and temperature re adings.

To perform northerly calibration

Important!

If you want to perform both northerly and bidirectional calibration, perform bidirectional calibration first, and then perform northerly calibration. This is necessary because bidirectional calibration cancels any existing northerly calibration setting.

Bearing Memory

12 o’clock position

North pointer

Bearing memory

Bearing memory pointer

pointer

Direction angle of

Direction angle of current reading

current reading

Bearing Memory

Screen

1. In the Digital Compass/Thermometer Mode, hold down

until the current magnetic declination settings start

to flash on the display. This is the setting screen.

2. Press D twice to display the northerly calibration screen.

• At this time, -N- (nort h) appears on th e display.

E-43

Bearing Memory lets you store a direction reading and display that reading as you take subsequent digital compass measurements. The Bearing Memory screen displays the direction angle for the stored direction, along with an indicator on the display that also indicates the stored direction. When you take digital compass measurements while the Bearing Memory screen is on the display, the direction angle of the current digital compass measurement (as read from the 12 o’clock position of the watch) and the currently stored Bearing Memory direction information will both be displayed.

E-45

To store a direction angle reading in Bearing Memory

1. Press C to start a digital compass measurement operation (page E-34).

• If a bearing me mory dire ction angl e value is alread y displayed, it me ans that

the bearing m emory s creen is displ ayed. If this happ ens, press A to clear the value current ly in Bearin g Memor y and exit the b earing mem ory scree n.

2. During the 20 seconds that digital compass measurement is in progress, press to store the current direction angle reading in Bearing Memory.

• The Beari ng Memor y directio n angle flash es for abou t one secon d as it is

stored in Bea ring Memo ry. After that , the Beari ng Memor y screen (whic h shows the bearing m emor y direction an gle) will appear, and a 2 0-s econd direc tion reading opera tion will st art.

• While the B earing Mem ory scree n is displayed, yo u can press C to start a new

20- second di rection readi ng operatio n, which disp lays the direct ion angle for the directio n that the 12 o’clock po sition of th e watch is pointed. T he directio n angle of the current readings will disappear from the display after the direction reading operat ion is comp lete.

E-46

• Determining the direction angle to an objective on a map and heading in that

direction

To set a map and find your current location

1. With the watch on your wrist, position it so the face is horizontal.

2. Press C to take a compass reading.

• The reading wi ll appear on t he display af ter about t wo seconds .

E-48

• During the f irst 20 sec onds afte r you display the B earing Me mory scre en or

during the 2 0-s econd direc tion reading o peration w hile the Bea ring Memo ry screen is on th e display, the direct ion stored in m emory is i ndicated by a Bearing Memory pointer.

• Pressing A while the Bearing Memory screen is displayed will clear the

direction a ngle currentl y in Bearing M emor y and star t a 20- second dire ction reading opera tion.

Using the Digital Compass While Mountain Climbing or Hiking

This section provides three practical applications for using the watch’s built-in digital compass.

• Setting a map and finding your current location

Having an idea of your current location is important when mountain climbing or hiking. To do this, you need to “set the map”, which means to align the map so the directions indicated on it are aligned with the actual directions of your location. Basically what you are doing is aligning north on the map with north as indicated by the watch.

• Finding the bearing to an objective

North indicated

North indicated on the map

on the map

North indicated by

North indicated by north pointer

north pointer

Current

Current location

location

3. Rotate the map without moving the watch so the northerly direction indicated on the map matches north as indicated by the watch.

• If the watch is con figured to indic ate magnetic

north, al ign the map’s magn etic nort h with the watch indicatio n. If the watch has be en configu red with a declinatio n to correct to t rue nort h, align the ma p’s true nor th with the watch i ndication . For detail s, see “Calibratin g the Beari ng Sensor ” (page E-37 ).

• This will position the map in accordance with your

current loc ation.

4. Determine your location as you check the geographic contours around you.

E-47

E-49

Operation Guide 3261 3281

To find the bearing to an objective

E-50

To determine the direction angle to an objective on a map and head in that direction

Current

Current location

location

12 o’clock

position

E-52

• Pressing A while the Be aring Mem ory direct ion angle val ue and Bear ing

Memor y pointer are on t he display will c lear the Be aring Mem ory data yo u saved in step 3 and s ave the current dire ction readi ng in Bearing M emor y.

Note

• When mou ntain climbi ng or hiking , conditio ns or geogra phic contou rs may

make it impo ssible for you to a dvance in a stra ight line. If thi s happens, ret urn to step 1 and save a new di rection to the o bjective.

Digital Compass Precautions

This watch features a built-in magnetic bearing sensor that detects terrestrial magnetism. This means that north indicated by this watch is magnetic north, which is somewhat different from true polar north. The magnetic north pole is located in northern Canada, while the magnetic south pole is in southern Australia. Note that the difference between magnetic north and true north as measured with all magnetic compasses tends to be greater as one gets closer to either of the magnetic poles. You should also remember that some maps indicate true north (instead of magnetic north), and so you should make allowances when using such maps with this watch.

E-54

1. Set the map so its northerly indication is aligned with north as indicated by the watch, and determine your current location.

• See “To set a map an d find your cur rent locatio n” on

Objective

Current

Current location

location

12 o’clock

12 o’clock position

position

Objective

page E-48 for infor mation about how to perfo rm the above step.

2. Set the map so the direction you want to travel on the map is pointed straight in front of you.

3. With the watch on your wrist, position it so the face is horizontal.

4. Press C to take a compass reading.

• The reading wi ll appear on t he display af ter about

two seconds.

1. Set the map so its northerly indication is aligned with north as indicated by the watch, and determine your current location.

• See “To set a map an d find your cur rent locati on” on

page E-4 8 for inform ation abou t how to per form the above step.

2. As shown in the illustration to the left, change your position so you (and the 12 o’clock position of the watch) are pointed in the direction of objective, while keeping the northerly direction indicated on the map aligned with north as indicated by the watch.

• If you find it di fficult to p erform t he above step whi le

keeping ever ything al igned, first m ove into the correct pos ition (12 o’clock posit ion of the watch pointed at the o bjective) with out worr ying about t he orientati on of the map. N ext, per form step 1 aga in to set the map.

5. Still holding the map in front of you, turn your body until north as indicated by the watch and the northerly direction on the map are aligned.

• This will position the map in accordance with your current location, so the

bearing to you r objective is s traight ahead o f you.

12 o’clock position

North pointer

Bearing memory

Bearing memory pointer

pointer

Bearing memory

Bearing memory direction angle value

direction angle value

Location

• Taking a direction reading when you are near a source of strong magnetism can

cause large errors in readings. Because of this, you should avoid taking direction readings while in the vicinity of the following types of objects: permanent magnets (magnetic necklaces, etc.), concentrations of metal (metal doors, lockers, etc.), high tension wires, aerial wires, household appliances (TVs, personal computers, washing machines, freezers, etc.).

• Accurate direction readings are impossible while in a train, boat, air plane, etc.

• Accurate readings are also impossible indoors, especially inside ferroconcrete

structures. This is because the metal framework of such structures picks up magnetism from appliances, etc.

Storage

• The precision of the bearing sensor may deteriorate if the watch becomes

magnetized. Because of this, you should store the watch away from magnets or any other sources of strong magnetism, including: permanent magnets (magnetic necklaces, etc.) and household appliances (TVs, personal computers, washing machines, freezers, etc.).

3. Press C to take a compass reading.

4. While direction angle readings are in progress, press

to record the currently displayed direction in Bearing

Memory.

• The directi on angle value a nd pointer sto red in

Bearing M emory w ill remain on t he display for ab out 20 seconds.

• See “Be aring Mem ory” (pag e E-45) fo r more

information.

5. Now you can advance while monitoring the Bearing Memory pointer to ensure that it remains in the 12 o’clock position.

• To re-display th e Bearing M emory d irection an gle

value and Bea ring Memo ry pointe r, press C.

E-51

E-53

E-55

• Whenever you suspect that the watch may have become magnetized, perform the

procedure under “To perform bidirectional calibration” (page E-42).

E-56

Temperature

• Temperature is displayed in units of 0.1°C (or 0.2°F).

• The displayed temperature value changes to

temperature falls outside the range of –10.0°C to 60.0°C (14.0°F to 140.0°F). The temperature value will reappear as soon as the measured temperature is within the allowable range.

Display Units

You can select either Celsius (°C) or Fahrenheit (°F) for the displayed temperature value. See “To specify temperature unit” (page E-61) for more information.

Temperature Sensor Calibration

The watch’s temperature sensor is calibrated at the factory and normally requires no further adjustment. If you notice serious errors in the temperature readings produced by the watch, you can calibrate the sensor to correct the errors.

E-58

- - -

°C (or °F) if a measured

Thermometer

This watch uses a temperature sensor to take temperature readings.

• The watch also takes direction readings in the Digital Compass/Thermometer

Mode. For more information, see “Digital Compass” (page E-33).

Direction indicator

Temperature

Angle value (in degrees)

Important!

• Incorrectly calibrating the temperature sensor can result in incorrect readings.

To calibrate the temperature sensor

Temperature

Carefully read the following before doing anything. – Compare the readings produced by the watch with those of another reliable and

accurate thermometer.

– If adjustment is required, remove the watch from your wrist and wait for 20 or 30

minutes to give the temperature of the watch time to stabilize.

To enter and exit the Digital Compass/Thermometer Mode

1. Press C to enter the Digital Compass/Thermometer Mode.

• Press C to take anoth er reading.

2. Press D to return to the mode you entered the Digital Compass/Thermometer Mode from.

• The watch will au tomaticall y return to the mo de you

entered the Di gital Com pass/ Thermo meter Mode from if you do n ot perfor m any operati on for about one or two m inutes.

1. Press C to enter the Digital Compass/Thermometer Mode.

2. Hold down A until the current magnetic declination correct values (page E-40) starts to flash on the display. This is the setting screen.

3. Press D three times.

• TEMP will appear on t he display alo ng with the

current tempe rature calibrat ion value.

E-57

E-59

Operation Guide 3261 3281

4. Use E (+) and B (–) to change the displayed calibration by 0.1°C (0.2°F) steps.

• To return the currentl y flashing val ue to its initia l factory def ault setti ng,

press E and B at the same ti me. OFF will appear i n place of the fl ashing temperature va lue for abou t one secon d, followed by th e initial defau lt value.

5. Press A to return to the Digital Compass/Thermometer Mode screen, and then take direction and temperature readings.

Thermometer Precautions

• Temperature measurements are affected by your body temperature (while you are

wearing the watch), direct sunlight, and moisture. To achieve a more accurate temperature measurement, remove the watch from your wrist, place it in a well ventilated location out of direct sunlight, and wipe all moisture from the case. It takes approximately 20 to 30 minutes for the case of the watch to reach the actual surrounding temperature.

E-60

2. Press D as many times as necessary until

• See step 3 und er “To change the cu rrent time an d date settin gs” (page E-2 9)

for informat ion about h ow to scroll throu gh setting s creens.

3. Press D to toggle the temperature unit between °C (Celsius) and °F (Fahrenheit).

4. After the setting is the way you want, press A to exit the setting screen.

E-62

TEMP

is displayed.

Using the Moon Data

In the Moon Data Mode, you can see the current date’s Moon phase for your Home City. You can specify a date and view Moon data for that date.

To enter the Moon Data Mode

Moon phase

Moon age

Month – Day

UseD to select the Moon Data as shown on page E-22.

• About one second after

the display will change to show the moon age.

Note

• Moon age is calculated to an accuracy of ±1 day.

MOON

appears on the display,

Specifying Temperature Unit

Use the procedure below to specify the temperature unit to be used in the Digital Compass/Thermometer Mode.

Important!

TOKYO

When temperature unit is set automatically to Celsius (°C). These settings cannot be changed.

To specify temperature unit

1. In the Timekeeping Mode, hold down A until

is selected as the Home City, the

starts to flash and the city name starts to scroll on the display.

• This is the setting screen.

SET

E-61

Temperature Reading Precautions

When taking temperature readings, it is best to remove the watch from your wrist in order to eliminate the effects of body heat. Remove the watch from your wrist and allow it to hang freely from your bag or in another location where it is not exposed to direct sunlight.

E-63

Moon Data

The Moon phase and Moon age information that appears first when you enter the Moon Data Mode shows the data at noon for your currently selected Home City on the current date, according to the Timekeeping Mode. After that you can specify another date to view data.

• If the Moon data is not correct, check your Timekeeping Mode settings and correct

them if necessary.

• The Moon phase is displayed in the Timekeeping Mode, and the Moon Data Mode.

• If the Moon phase indicator shows a phase that is a mirror image of the actual

moon phase in your area, you can use the procedure under “Reversing the Displayed Moon Phase” (page E-66) to change it.

• Use the Moon Data Screen to specify the Moon Data date. You can use E (+) to

change the displayed date in one-day increments. Pressing E will display the year of the displayed date.

E-64

Reversing the Displayed Moon Phase

The left-right (east-west) appearance of the Moon depends on whether the Moon is north of you (northerly view) or south of you (southerly view) as you view it. You can use the procedure below to reverse the displayed Moon phase so it matches the actual appearance of the Moon where you are located.

• To determine the viewing direction of the Moon, use a compass to take a direction

reading of the Moon at its meridian passage.

• For information about the Moon phase indicator, see “Moon Phase Indicator” (page

E-68).

E-66

Moon Phase Indicator

Module 3261

Moon Phase Indicator

Module 3281

E-68

The Moon phase indicator of this watch indicates the current phase of the Moon as shown below. It is based on the view of the left side of the moon at meridian transit from the northern hemisphere of the Earth. If the appearance of the Moon phase indicator is reversed from the actual Moon as viewed from your location, you can use the procedure under “To reverse the displayed Moon phase” (page E-67) to change the indicator.

To reverse the displayed Moon phase

Module

Moon

3261

Phase Indicator

Module

3281

Moon Age

Moon Phase

1. In the Moon Data Mode, hold down A until the Moon phase indicator starts to flash.

• This is the in dicator switc hing screen.

2. Press E to toggle the Moon phase indicator between the southerly view (indicated by view (indicated by

• North erly view: M oon is nor th of you.

• Southerly view: Moon is south of you.

3. When the Moon phase indicator setting is the way you want, press E to exit the switching screen and return to the Moon Data Mode screen.

(part you cannot see) Moon phase (part you can see)

28.7-29.8

0.0-0.9 New Moon

1.0-2.7

2.8-4.6

4.7-6.4 6.5-8.3 8.4-10.1

First Quarter (Waxing)

) and northerly

10.2-12.0 12.1-13.8

E-65

E-67

E-69

Operation Guide 3261 3281

Moon phase (part you can see) (part you cannot see)

Module

Moon

3261

Phase Indicator

Module

3281

Moon Age

Moon Phase

E-70

To view the time in another time zone

In the World Time Mode, use E (East) to scroll through city names.

• Pressing E and B at the same time will jump to the UTC time zone.

To specify standard time or daylight saving time (DST) for a city

E-72

Full Moon

DST indicator

Last Quarter (Waning)

1. In the World Time Mode, use E (East) to display the city name (time zone) whose Standard Time/Daylight Saving Time setting you want to change.

2. Hold down A to toggle between Daylight Saving Time

DST

(

indicator displayed) and Standard Time (

indicator not displayed).

• The DST indicator is s hown on the Wo rld Time

Mode scree n while Daylig ht Saving Ti me is turned on.

• Using the Worl d Time Mod e to change the D ST

setting of t he city na me that is sele cted as your Home Cit y also will ch ange the Ti mekeeping M ode time DST se tting.

Using the Stopwatch

The stopwatch measures elapsed time, split times, and two finishes.

Current time

Minutes

Hours

Seconds

1/100 second

To enter the Stopwatch Mode

UseD to select the Stopwatch Mode ( page E-22.

• About one second after

the display will change to show the stopwatch hours.

To perform an elapsed time operation

Start Stop (Restart) (Stop) Reset

STW

E E

STW

appears on the display,

25.0-26.813.9-15.7 15.8-17.5 17.6-19.4 19.5-21.2 21.3-23.1 23.2-24.9 26.9-28.6

DST

) as shown on

Checking the Current Time in a Different Time Zone

You can use the World Time Mode to view the current time in one of 31 time zones (48 cities) around the globe. The city that is currently selected in the World Time Mode is called the “World Time City”.

Currently selected

Currently selected World Time City

World Time City

Current time in the

Current time in the currently selected

currently selected World Time City

World Time City

• Note that you c annot switc h between s tandard tim e/daylight sav ing time (D ST)

while UTC is selected as the World Ti me City.

• Note that the s tandard tim e/daylight sav ing time (D ST) set ting affect s only the

currently se lected time zo ne. Other t ime zones are n ot affected .

To pause at a split time

Start Split

To measure two finishes

Start Split

To enter the World Time Mode

UseD to select the World Time Mode (WT) as shown on page E-22.

•

Entering the World Time Mode will cause WT to be displayed for the mode name for about one second, and then the name of the currently selected city will scroll on the display. After that, the city code will be displayed. If you select a different city, the city name will scroll first and then the city code will appear. For information about city codes, see the “City Code Table” at the back of this manual.

• To view the name of the currently selected city, press

in the World Time Mode. This will cause the city

name to scroll on the display.

SPL

(

displayed)

First runner finishes. Display time of first runner

A E

Split release Stop Reset

E A

Stop

Second runner finishes.

Split release

Display time of second runner

E-71

E-73

Reset

E-74

Note

• The Stopwatch Mode can indicate elapsed time up to 999 hours, 59 minutes, 59.99

seconds.

• Once started, stopwatch timing continues until you press A to stop it, even if you

exit the Stopwatch Mode to another mode and even if timing reaches the stopwatch limit defined above.

• Exiting the Stopwatch Mode while a split time is frozen on the display clears the

split time and returns to elapsed time measurement.

E-76

To specify the countdown start time

1. Enter the Countdown Timer Mode.

• If a countdow n is in progress (i ndicated by th e seconds co unting dow n), press

to stop it and th en press A to reset to the cur rent countdo wn start t ime.

• If a countdow n is paused, pre ss A to reset to the cur rent countdo wn start

time.

2. Hold down A until the hour setting of the current countdown start time starts to flash. This is the setting screen.

3. Press D to move the flashing between the hour and minute settings.

4. Use E (+) and B (–) to change the flashing item.

• To set the starti ng value of the c ountdown ti me to 24 hours, s et 0H 00’00.

5. Press A to exit the setting screen.

E-78

Using the Countdown Timer

The countdown timer can be configured to start at a preset time, and sound an alarm when the end of the countdown is reached.

To enter the Countdown Timer Mode

UseD to select the Countdown Timer Mode ( shown on page E-22.

• About one second after

the display will change to show the countdown time

Current time

Countdown time

Countdown time (Hour, minutes, seconds)

(Hour, minutes, seconds)

To perform a countdown timer operation

Start Stop (Restart) (Stop) Reset

• Before starting a countdown timer operation, check to make sure that a countdown

• An alarm sounds for ten seconds when the end of the countdown is reached. This

To stop the alarm

Press any button.

Current time

operation is not in progress (indicated by the seconds counting down). If it is, press

to stop it and then A to reset to the countdown start time.

alarm will sound in all modes. The countdown time is reset to its starting value automatically when the alarm sounds.

hours.

E E

TMR

appears on the display,

TMR

E-75

) as

E-77

E-79

Operation Guide 3261 3281

Using the Alarm

Current time

Alarm time

Alarm time (Hour : Minutes)

(Hour : Minutes)

E-80

4. While a setting is flashing, use E (+) and B (–) to change it.

• When set ting the alar m time using t he 12-hour f ormat, take c are to set the ti me

correctly a s a.m. (no indica tor) or p.m. (P indicator).

5. Press A to exit the setting screen.

To test the alarm

In the Alarm Mode, hold down E to sound the alarm.

To turn an alarm and the Hourly Time Signal on and off

1. In the Alarm Mode, use E to select an alarm or the Hourly Time Signal.

E-82

You can set four one-time alarms and one snooze alarm. When an alarm is turned on, the watch will beep for about 10 seconds each day when the time in the Timekeeping Mode reaches the preset alarm time. This is true even if the watch is not in the Timekeeping Mode. You can also turn on an Hourly Time Signal, which will cause the watch to beep twice every hour on the hour.

To enter the Alarm Mode

UseD to select the Alarm Mode ( page E-22.

• About one second after

the display will change to show one of the following alarm screens:

SNZ

AL1

(snooze alarm), or

(Alarm 1) through

ALM

) as shown on

ALM

appears on the display,

SIG

AL4

(Hourly Time Signal).

(Alarm 4),

Illumination

The display of the watch is illuminated for easy reading in the dark. The watch’s auto light switch turns on illumination automatically when you angle the watch towards your face.

• The auto light switch must be turned on (page E-86) for

it to operate.

To turn on illumination manually

PressB in any mode to illuminate the display.

• You can use the procedure below to select either 1.5

seconds or 3 seconds as the illumination duration. When you press B, the display will remain illuminated for about 1.5 seconds or 3 seconds, depending on the current illumination duration setting.

E-84

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

the mode appears first.

To set an alarm time

Alarm ON/OFF

Alarm ON/OFF indicator

indicator

2. When the alarm or the Hourly Time Signal you want is selected, press A to turn it

on and off.

Hourly time

Alarm on

Hourly time

Alarm on

signal on

indicator

signal on

indicator

To stop the alarm

Press any button.

• The above operation turns on illumination regardless of the current auto light switch

setting.

• Illumination is disabled while configuring sensor measurement mode settings, and

during bearing sensor calibration.

To change the illumination duration

1. In the Timekeeping Mode, hold down A until

starts to scroll on the display.

• This is the setting screen.

2. Keep pressing D until

• See step 3 und er “To change the cu rrent time an d date settin gs” (page E-2 9)

for informat ion about h ow to scroll throu gh setting s creens.

3. Press E to toggle the illumination duration between three seconds ( and 1.5 seconds (

4. After the settings are the way you want, press A to exit the setting screen.

1. In the Alarm Mode, use E to scroll through the alarm screens until the one whose time you want to set is displayed.

AL1

SIG

2. Hold down A until the alarm time starts to flash. This is the setting screen.

3. Press D to move the flashing between the hour and minute settings.

• The alarm o n indicator a nd hourly ti me signal on

indicator are di splayed when th e alarm and/ or signal is tur ned on.

• The alarm o n indicator a nd the Hourl y Time Sign al

on indicato r are shown on t he display in all m odes while thes e function s are turned on .

• If any alarm is o n, the alarm o n indicator is s hown

on the display i n all modes.

• The alarm o n indicator fl ashes whil e the alarm is

sounding.

• The snooze a larm indica tor (SNZ) flashes w hile the

snooze alar m is sounding a nd during th e 5-mi nute intervals between alarms.

LT1

LT3

is displayed.

LT1

displayed).

AL2

SNZ

SET

starts to flash and the city name

AL3

AL4

LT3

E-81

E-83

displayed)

E-85

About the Auto Light Switch

Turning on the auto light switch causes illumination to turn on, whenever you position your wrist as described below in any mode.

Moving the watch to a position that is parallel to the ground and then tilting it towards you more than 40 degrees causes illumination to turn on.

Warning!

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

•

display 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 startle or distract others around you.

E-86

To turn the auto light switch on and off

Auto light switch

Auto light switch on indicator

on indicator

Illumination Precautions

• Frequent display illumination can run down the battery quickly and require

charging. The following guidelines give an idea of the charging time required to recover from a single illumination operation.

Approximately five minutes exposure to bright sunlight coming in through a window Approximately 50 minutes exposure to indoor fluorescent lighting

E-88

In the Timekeeping Mode, hold down B for about three seconds to toggle the auto light switch on (LT displayed) and off (LT not displayed).

• The auto light switch on indicator (LT) is on the display

in all modes while the auto light switch is turned on.

• The auto light switch turns off automatically whenever

battery power drops to Level 4 (page E-14).

More than

More than 40°

40°

Wear the watch on the

Wear the watch on the outside of your wrist

outside of your wrist

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.

Note

• The auto light switch is always disabled, regardless of its on/off setting, when any

one of the following conditions exists.

While an alarm is sounding During sensor measurement While a bearing sensor calibration operation is being performed in the Digital Compass/Thermometer Mode

E-87

• The electro-luminescent panel that provides illumination loses power after very long

use.

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

• Illumination turns off automatically whenever an alarm sounds.

• Frequent use of illumination runs down the battery.

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.

• Note that wearing the watch under your sleeve while the auto light switch is turned

on can cause frequent illumination of the display and can run down the battery.

E-89

Operation Guide 3261 3281

• 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 (page

E-84), 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.

• 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.

E-90

Button Operation Tone

The button operation tone sounds any time you press one of the watch’s 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.

E-92

Troubleshooting

Time Setting

The current time setting is off by one hour.

■

You may need to change your Home City’s standard time/daylight saving time (DST) setting. Use the procedure under “To change the current time and date settings” (page E-29) to change the standard time/daylight saving time (DST) setting.

Sensor modes

I can’t change the temperature unit setting.

■

The temperature unit setting is always Celsius (°C) whenever the Home City. In this case, the setting cannot be changed.

E-94

TOKYO

is selected as

Graphic Area

The information shown in the graphic area depends on the current mode.

Graphic AreaGraphic Area

To turn the button operation tone on and off

Mute indicator

“ERR” appears on the display while I am using a sensor.

■

Subjecting the watch to strong impact can cause sensor malfunction or improper contact of internal circuitry. When this happens, and sensor operations will be disabled.

ERR

• If

appears while a measurement operation is being performed in a sensor mode, restart the measurement. If there is something wrong with the sensor.

• Even if battery power is at Level 1 (H) or Level 2 (M), the Digital Compass/

Thermometer Mode sensor may be disabled if there is not enough voltage available to power it sufficiently. In this case, indicate malfunction, and sensor operation should resume once battery voltage returns to its normal level.

Mode Graphic Area

Timekeeping Mode Timekeeping Mode seconds

World Time Mode World Time Mode hours

Alarm Mode Timekeeping Mode hours

Stopwatch Mode Stopwatch Mode minutes

CountdownTimer Mode CountdownTimer Mode minutes

1. In the Timekeeping Mode, hold down A until starts to flash and the city name starts to scroll on the display.

• This is the setting screen.

2. Keep pressing D until

• See step 3 und er “To change the cu rrent time an d

date settin gs” (page E-2 9) for informat ion about how to scroll thro ugh settin g screens.

3. Press E to toggle the button operation tone on

KEY

(

4. After the settings are the way you want, press A to exit the setting screen.

Note

• The mute indi cator is displaye d in all modes w hen

the button operation tone is turned off.

MUTE

) and off (

ERR

appears on the display again, it can mean

ERR

will appear on the display. This does not

MUTE

KEY

(error) will appear on the display

SET

is displayed.

E-91

E-93

E-95

ERR

• If

keeps appearing during measurement, it could mean there is a problem with

the applicable sensor.

ERR appears on the display after I perform bidirectional calibration or

■

northerly calibration.

- - -

appears and then changes to

that there is something wrong with the sensor.

ERR

• If

disappears after about one second, try performing the calibration again.

ERR

• If

keeps appearing, contact your original dealer or nearest authorized CASIO

distributor to have the watch checked.

ERR appears on the display after I perform northerly calibration.

■

ERR

The

message indicates there may be some problem with the sensor. The message also may be due to movement of the watch while the calibration procedure is being performed. Try performing calibration again, taking care to ensure that the watch is not moved. If this does not solve the problem, the problem may be due to some nearby source of terrestrial magnetism. Try performing the calibration procedure again from the beginning.

E-96

Why am I having problems taking direction readings indoors?

■

A TV, personal computer, speakers, or some other object is interfering with terrestrial magnetism readings. Move away from the object causing the interference or take the direction reading outdoors. Indoor direction readings are particularly difficult inside ferro-concrete structures. Remember that you will not be able to take direction readings inside of trains, airplanes, etc.

World Time Mode

The time for my World Time City is off in the World Time Mode.

■

This could be due to incorrect switching between standard time and daylight saving time. See “To specify standard time or daylight saving time (DST) for a city” (page E-72) for more information.

Charging

The watch does not resume operation after I expose it to light.

■

This can happen after the power level drops to Level 5 (page E-14). Continue exposing the watch to light until the battery power indicator shows “H” or “M”.

E-98

ERR

(error) on the calibration screen, it means

ERR

Whenever you have a sensor malfunction, take the watch to your original dealer or nearest authorized CASIO distributor as soon as possible.

What causes incorrect direction readings?

■

• Incorrect bidirectional calibration. Perform bidirectional calibration (page E-42).

• Nearby source of strong magnetism, such as a household appliance, a large steel

bridge, a steel beam, overhead wires, etc., or an attempt to perform direction measurement on a train, boat, etc. Move away from large metal objects and try again. Note that digital compass operation cannot be performed inside a train, boat, etc.

What causes different direction readings to produce different results at the

■

same location?

Magnetism generated by nearby high-tension wires is interfering with detection of terrestrial magnetism. Move away from the high-tension wires and try again.

E-97

Specifications

Accuracy at normal temperature: Timekeeping:

Digital Compass:

Thermometer:

Hour, minutes, seconds, p.m. (P), year, month, day, day of the week Time format: 12-hour and 24-hour Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099 Other: Home City name (can be assigned one of 48 city names); Standard Time /

Daylight Saving Time (summer time)

20 seconds continuous measurement; 16 directions; Angle value 0° to 359°; Four direction pointers; Calibration (bidirectional, northerly); Magnetic declination correction; Bearing Memory

Measurement and display range: –10.0 to 60.0°C (or 14.0 to 140.0°F) Display unit: 0.1°C (or 0.2°F) Measurement timing: Every five seconds in the Digital Compass/Thermometer

Mode

Other: Calibration; Manual measurement (button operation)

±15 seconds a month

E-99

Operation Guide 3261 3281

Bearing Sensor Precision:

Direction: Within ±10°

Values are guaranteed for a temperature range of –10°C to 40°C (14°F to

104°F).

North pointer: Within ±2 digital segments

Temperature Sensor Precision:

±2°C (±3.6°F) in range of –10°C to 60°C (14.0°F to 140.0°F)

Moon Data:

Moon phase indicator for specific date, Moon age indicator

Other: Moon phase reversal

World Time:

Stopwatch:

E-100

E-102

48 cities (31 time zones)

Other: Daylight Saving Time/Standard Time

Measuring unit: 1/100 second Measuring capacity: 999:59' 59.99" Measuring modes: Elapsed time, split time, two finishes

Frequent use of illumination runs down the battery. Particular care is required when using the auto light switch (page E-89).

City Code Table

City

Code

PPG PAGO PAGO –11

HNL HONOLULU –10

ANC ANCHORAGE –9

YVR VANCOUVER

LAX LOS ANGELES

YEA EDMONTON

DEN DENVER

MEX MEXICO CITY

CHI CHICAGO

NYC NEW YORK –5

L-2

UTC Offset/

GMT Differential

–8

–7

–6

City

Code

SCL SANTIAGO

YHZ HALIFAX

YYT ST. JOHN’S –3.5

RIO DE

RIO

JANEIRO

FEN

NORONHA

RAI PRAIA –1

UTC

LON LONDON

GMT Differential

F.DE

UTC Offset/

–4

–3

–2

0LIS LISBON

Countdown Timer:

Measuring unit: 1 second Countdown start time setting range: 1 minute to 24 hours (1-hour increments and

1-minute increments)

Alarms:

5 daily alarms (four one-time alarms; one snooze alarm); Hourly Time Signal

Illumination:

Other: Power Supply:

EL Backlight (electro-luminescent panel); Selectable illumination duration (approximately 1.5 second or 3 seconds); Auto Light Switch (Full Auto EL Light operates only in the dark)

Battery power indicator; Power Saving; Button operation tone on/off

Solar cell and one rechargeable battery

Approximate battery operating time: 8 months (from full charge to Level 4) under

the following conditions:

• Watch not exposed to light

• Internal timekeeping

• Display on 18 hours per day, sleep state 6 hours per day

• 1 illumination operation (1.5 seconds) per day

• 10 seconds of alarm operation per day

• 10 digital compass operations per week

City

Code

MAD MADRID

PAR PARIS

ROM ROME

BER BERLIN

STO STOCKHOLM

ATH ATHENS

JRS JERUSALEM

MOW MOSCOW

JED JEDDAH

THR TEHRAN +3.5

DXB DUBAI +4

UTC Offset/

GMT Differential

+2CAI CAIRO

City

Code

KBL KABUL +4.5

KHI KARACHI +5

DEL DELHI +5.5

KTM KATHMANDU +5.75

DAC DHAKA +6

RGN YANGON +6.5

BKK BANGKOK +7

SIN SINGAPORE

HKG HONG KONG

BJS BEIJING

TPE TAIPEI

UTC Offset/

GMT Differential

E-101

L-1

L-3

City

Code

SEL SEOUL

TYO TOKYO

ADL ADELAIDE +9.5

GUM GUAM

SYD SYDNEY

NOU NOUMEA +11

WLG WELLINGTON +12

L-4

UTC Offset/

GMT Differential

+10

• Based on data as of July 2010.

• The rules governing global times (GMT

differential and UTC offset) and summer time are determined by each individual country.

Casio 3281 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual