Casio 3441 Operation Manual Download Page 6

Operation Guide 3440 3441

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 If you are adding records to a log when there are multiple logs in memory and 

watch memory becomes full, adding another record causes the oldest log in 
memory and all of its records to be deleted automatically to make room for new 
records.

How Stopwatch Data is Stored

The following table describes how data is stored when you perform the various button 
operations described on page E-18.

Stopwatch Button Operation

Data Store Operation

D

 Start (from all zeros)

Creates a new log for the current date. (The log is updated 
as timing progresses.)

B

 Stop

Time measurement stops, without storing data in memory.

D

 Resume

Time measurement resumes, without storing data in 
memory.

D

 Lap/Split

Creates new record: displayed lap/split times

B

 Reset

Creates new record: displayed lap/split times (Stopwatch 
display is reset to all zeros.)

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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, alarms, 

the Hourly Time Signal, and other beepers all operate 
normally.

Mute indicator

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To turn the button operation tone on and off

1. In the Timekeeping Mode, hold down 

A

 until the city 

code starts to fl ash, which indicates the setting screen.

2. Press 

C

 nine times until the current button operation 

tone setting (

 or 

) appears.

3. Press 

D

 to toggle the setting between 

 (tone on) 

and

 (tone off).

4. Press 

A

 to exit the setting screen.

 The mute indicator is displayed in all modes when the 

button operation tone is turned off.

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Power Saving Function

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

Elapsed Time 

in Dark

Display

Operation

60 to 70 minutes

Blank, with Power Saving indicator 
fl ashing

All functions enabled, except for 
the display

6 or 7 days

Blank, with Power Saving indicator 
not fl ashing

Beeper tone, illumination, and 
display are disabled.

 Wearing the watch inside the sleeve of clothing can cause it to enter the sleep 

state.

Power saving indicator

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

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

To recover from the sleep state

Perform any one of the following operations.

 Move the watch to a well-lit area.

 Press any button.

To turn Power Saving on and off

1. In the Timekeeping Mode, hold down 

A

 until the city 

code starts to fl ash, which indicates the setting screen.

2. Press 

C

 11 times until the Power Saving on/off screen 

appears.

3. Press 

D

 to toggle Power Saving on (

) and off (

).

4. Press 

A

 to exit the setting screen.

 The Power Saving indicator is on the display in all 

modes while Power Saving is turned on.

On/Off status

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Auto Return

If you do not perform any operation for about two or three minutes while a setting 
screen (with a fl ashing setting) is on the display, the watch will exit the setting screen 
automatically.

Scrolling

The

B

 and 

D

 are used in various modes and setting screens to scroll through data 

on the display. In most cases, holding down these buttons during a scroll operation 
scrolls at high speed.

Initial Screens

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

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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.

 The year can be set in the range of 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 on your Home City time setting.

World Time

The seconds count of the World Time is synchronized with the seconds count of the 
Timekeeping Mode.

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Specifi cations

Accuracy at normal temperature:

 ±30 seconds a month

Timekeeping:

 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 code (can be assigned one of 48 city codes); Standard Time / 

Daylight Saving Time (summer time)

Stopwatch:

 Time measurements

Measuring unit: 1/100 for the fi rst 10 hours, and then 1 second after 10 hours 
Measuring capacity: 99:59'59"
Measuring accuracy: ±0.0012%
Measuring modes: Elapsed time, lap/split times
Memory capacity: 121 records (used by lap/split time records and log title 

screens)

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Countdown Timer:

Number of timers: 2 (one set) 
Setting unit: 5 seconds
Range: 99 minutes 55 seconds each timer
Countdown unit: 1 second
Number of repeats: 1 to 10
Other: 5-second time up beeper

World Time:

 48 cities (31 time zones)

Other: Daylight Saving Time/Standard Time

Alarms:

 5 daily alarms (with 1 snooze alarm); Hourly Time Signal

Illumination:

 LED (light-emitting diode); Selectable illumination duration

Other:

 Button operation tone on/off

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Power Supply:

 Solar panel and one rechargeable battery

Approximate battery operating time:

Module 3440: 13 months
Module 3441: 11 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 second) per day

 10 seconds of alarm operation per day

Frequent use of illumination runs down the battery. 

Summary of Contents for 3441

Page 1: ...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 53 for more information About This Manual The operational procedures for Modules 3440 and 3441 are identical All of the illustrations in this manual show Module 3440 Button operations are indicated using the letters shown in the il...

Page 2: ...ear month and day settings E 15 12 hour and 24 hour timekeeping With the 12 hour format the P PM indicator appears to the left of the hour digits for times in the range of noon to 11 59 p m and 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 hou...

Page 3: ...beep once Keep B and D depressed and ALL will flash on the display for three seconds and then the watch will beep again This indicates that all log data is cleared You cannot delete logs while an elapsed timing operation is in progress E 26 Countdown Timer Dual timers can be set with two different starting times The watch can be configured so the two timers alternate so when one reaches the end of i...

Page 4: ...tion turns on the alarm automatically 3 Press C to move the flashing between the hour and minute settings 4 While a setting is flashing use D and B to change it With the 12 hour format set the time correctly as a m or p m P indicator 5 Press A to exit the setting screen E 35 Alarm Operation The alarm tone sounds at the preset time for 10 seconds regardless of the mode the watch is in In the case of ...

Page 5: ...escribed 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 wa...

Page 6: ...o exit the setting screen The Power Saving indicator is on the display in all modes while Power Saving is turned on On Off status E 55 Auto Return If you do not perform any operation for about two or three minutes while a setting screen with a flashing setting is on the display the watch will exit the setting screen automatically Scrolling The B and D are used in various modes and setting screens t...

Page 7: ... Rome BER Berlin STO Stockholm L 3 City Code City UTC Offset GMT Differential ATH Athens 2 CAI Cairo JRS Jerusalem MOW Moscow 3 JED Jeddah THR Tehran 3 5 DXB Dubai 4 KBL Kabul 4 5 KHI Karachi 5 DEL Delhi 5 5 KTM Kathmandu 5 75 DAC Dhaka 6 RGN Yangon 6 5 City Code City UTC Offset GMT Differential BKK Bangkok 7 SIN Singapore 8 HKG Hong Kong BJS Beijing TPE Taipei SEL Seoul 9 TYO Tokyo ADL Adelaide 9...

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