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Operation Guide 3271

MO1106-EA

E-1

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.

Be sure to keep all user documentation handy for future reference.

Keep the watch exposed to bright light

The electricity generated by the solar cell of the watch is
stored by a rechargeable battery. Leaving or using the
watch where it is not exposed to light causes the battery
to run down. Make sure the watch is exposed to light as
much as possible.

When you are not wearing the watch on your wrist,
position the face so it is pointed at a source of bright
light.

You should try to keep the watch outside of your sleeve
as much as possible. Charging is reduced significantly if
the face is covered only partially.

ll

l

l

l

l

l

l

l

l

l

Bright Light

Solar cell

E-2

All
functions
enabled

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

Charge

Rechargeable battery

Bright Light

Electrical 
energy

Solar cell
(Converts light to 
electrical power.)

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

Some or all
functions
disabled

Dis-

charge

Battery charges in the light.

Battery discharges in the dark.

The watch continues to operate, even when it is not exposed to light. Leaving the
watch in the dark can cause the battery to run down, which will result in some watch
functions to be disabled. If the battery goes dead, you will have to re-configure watch
settings after recharging. To ensure normal watch operation, be sure to keep it
exposed to light as much as possible.

E-3

The actual level at which some functions are disabled depends on the watch model.

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 5 minutes exposure to bright sunlight coming in through a window
Approximately 8 hours exposure to indoor fluorescent lighting

Be sure to read “Power Supply” (page E-39) for important information you
need to know when exposing the watch to bright light.

If the display of the watch is blank...

If the display of the watch is blank, it means that the watch’s Power Saving function
has turned off the display to conserve power.

See “Power Saving Function” (page E-51) for more information.

E-4

About This  Manual

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

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.

E-5

Contents

General Guide ......................................................................................................... E-8
Timekeeping .......................................................................................................... E-11
Stopwatch .............................................................................................................. E-17
Recall Mode ........................................................................................................... E-21
Countdown Timer .................................................................................................. E-25
World Time ............................................................................................................. E-29
Alarms .................................................................................................................... E-32
Illumination ............................................................................................................ E-37
Power Supply ........................................................................................................ E-39
Reference .............................................................................................................. E-47
Specifications ....................................................................................................... E-55

E-6

Procedure Lookup

The following is a handy reference list of all the operational procedures contained in
this manual.

To exit the demo mode ......................................................................................... E-10

To set the time and date ....................................................................................... E-12

To change the Daylight Saving Time (summer time) setting ............................ E-16

To measure times with the stopwatch ................................................................ E-18

To position the lap time and split time on the display ...................................... E-19

To recall stopwatch records ................................................................................ E-21

To delete a log ....................................................................................................... E-23

To delete all logs ................................................................................................... E-24

To configure the countdown timer ...................................................................... E-26

To use the countdown timer ................................................................................ E-28

E-7

To view the time in another city ........................................................................... E-30

To toggle a city code time between Standard Time and

Daylight Saving Time ...................................................................................... E-31

To set an alarm time ............................................................................................. E-33

To test the alarm ................................................................................................... E-34

To turn an alarm on and off .................................................................................. E-35

To turn the Hourly Time Signal on and off .......................................................... E-36

To illuminate the display manually ...................................................................... E-37

To specify the illumination duration ................................................................... E-38

To turn the button operation tone on and off ..................................................... E-50

To recover from the sleep state ........................................................................... E-52

To turn Power Saving on and off ......................................................................... E-52

E-8

General Guide

Press

C

 to change from mode to mode.

In any mode, press 

L

 to illuminate the display.

Timekeeping Mode

C

Stopwatch Mode

C

E-9

Countdown Timer  Mode

Alarm Mode

World Time  Mode

Recall Mode

C

C

C

C

Summary of Contents for 3271

Page 1: ...ugh a window Approximately 8 hours exposure to indoor fluorescent lighting Be sure to read Power Supply page E 39 for important information you need to know when exposing the watch to bright light If the display of the watch is blank If the display of the watch is blank it means that the watch s Power Saving function has turned off the display to conserve power See Power Saving Function page E 51 ...

Page 2: ...no indicator appears to the left of the hour digits 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 12 hour 24 hour timekeeping format you select in the Timekeeping Mode is applied in all other modes Daylight Saving Time DST Daylight Saving Time summer time advances the time setting by one hour from...

Page 3: ...peats value which controls how many times the two timer countdown operation is performed 1 once 2 twice etc The starting time of each timer can be set in five second steps up to 99 minutes 55 seconds You can specify up to 10 repeats The watch emits a short beep whenever either of the timers reaches the end of its countdown during an ongoing timer operation The watch emits a 5 second beep when the ...

Page 4: ...rming any one of the operations below during a 5 minute interval between snooze alarms cancels the current snooze alarm operation Displaying the Timekeeping Mode setting screen page E 12 Displaying the SNZsetting screen page E 33 To test the alarm In the Alarm Mode hold down D to sound the alarm E 35 To turn an alarm on and off 1 In the Alarm Mode use D to select an alarm 2 Press B to toggle it on...

Page 5: ...ect sunlight E 45 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 5 minutes 24 minutes 48 minutes 8 hours Charging Guide The following table shows the amount of time the watch needs to be exposed to light each day in order to generate enough p...

Page 6: ...f 2000 to 2099 The watch s built in full automatic calendar makes allowances for different month lengths and leap years Once you set the date there should be no reason to change it except after you have the watch s battery replaced The current time for all city codes in the Timekeeping Mode and World Time Mode is calculated in accordance with the Coordinated Universal Time UTC for each city based ...

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