CASIO 3031 Wrist Watch User Guide
- June 17, 2024
- Casio
Table of Contents
CASIO 3031 Wrist Watch
USING INSTRUCTION
About This Manual
- Depending on the model of your watch, display text appears either as dark figures on a light background or light figures on a dark background. All sample displays in this manual are shown using dark figures on a light background.
- 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.
General Guide
- Press C to change from mode to mode.
- In any mode, press L to illuminate the display.
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
Read This Before You Set the Time and Date !
The times displayed in the Timekeeping Mode and World Time Mode are linked.
Because of this, make sure you select a Home Time zone before you set the time
and date.
To set the time and date
- In the Timekeeping Mode, hold down A until the seconds start to flash, which indicates the setting screen.
- Press C to move the flashing in the sequence shown below to select other settings.
- When the setting you want to change is flashing, use D and B to change it as described below.
- For details about time zones, see the “City Code Table” .
- See “Daylight Saving Time (DST)” for details about DST setting.
- Press A to exit the setting screen.
- The day of the week is displayed automatically under the date (year, month, and day) settings.
Daylight Saving Time (DST)
Daylight Saving Time (summertime) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use
Daylight Saving Time.
To toggle the Timekeeping Mode time between DST and Standard Time.
- In the Timekeeping Mode, hold down A until the seconds start to flash, which indicates the setting screen.
- Press C to display the DST setting screen.
- Press D to toggle between Daylight Saving Time (ON displayed) and Standard Time (OFF displayed).
- Press A to exit the setting screen.
- The DST indicator appears on the display to indicate that Daylight Saving Time is turned on.
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press D to toggle between 12-hour timekeeping 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-hour/24-hour timekeeping format you select in the Timekeeping Mode is applied in all other modes.
- The P indicator is not displayed when the current time is displayed in other modes.
Stopwatches
Your watch has two stopwatch modes: Stopwatch Mode (ST1) and Stopwatch Mode (ST2). Both stopwatch modes let you measure elapsed time, split times, and two finishes. The Stopwatch Mode (ST1) includes Auto-Start.
- The display range of the stopwatch is 999 hours, 59 minutes, 59.99 seconds.
- A stopwatch continues to run, restarting from zero after it reaches its limit until you stop it.
- A stopwatch measurement operation continues even if you exit a Stopwatch Mode.
- Exiting a Stopwatch Mode while a split time is frozen on the display clears the split time and returns to the elapsed time measurement.
- All of the operations in this section are performed in the Stopwatch Mode (ST1) or Stopwatch Mode (ST2), which you enter by pressing C.
To measure times with the stopwatch (Stopwatch Mode (ST1) and Stopwatch Mode (ST2))
About Auto-Start (Stopwatch Mode (ST1))
With Auto-Start, the watch performs a 5-second countdown, and the stopwatch
operation starts automatically when the countdown reaches zero.
During the final three seconds of the countdown, a beeper sounds with each
second.
To use Auto-Start (ST1)
- While the stopwatch screen is showing all zeros in the Stopwatch Mode, press B.
- This displays a 5-second countdown screen.
- To return to the all-zeros screen, press B again.
- Press D to start the countdown.
- When the countdown reaches zero, a tone sounds and a stopwatch timing operation starts automatically.
- Pressing D while the Auto-Start countdown is in progress starts the stopwatch immediately.
Countdown Timer
The countdown timer can be set within a range of one minute to 24 hours. An alarm sounds when the countdown reaches zero. The countdown timer also has an auto-repeat feature and a progress beeper that signals the progress of the countdown.
- All of the operations in this section are performed in the Countdown Timer Mode, which you enter by pressing C.
Configuring the Countdown Timer
The following are the settings you should configure before actually using the
countdown timer.
Countdown start time; Auto-repeat on/off; Progress beeper on/off
- See “To configure the countdown timer” for information about setting up the timer.
Auto-repeat
When auto-repeat is turned on, the countdown restarts automatically from the
countdown start time when it reaches zero.
When auto-repeat is turned off, the countdown stops when it reaches zero and
the display shows the original countdown start time.
- Pressing D while an auto-repeat countdown is in progress pauses the current countdown. You can resume the auto-repeat countdown by pressing D, or you can press A to reset to the countdown time starting value.
Countdown Timer Beeper Operations
The watch beeps at various times during a countdown so you can keep informed
about the countdown status without looking at the display. The following
describes the types of beeper operations the watch performs during a
countdown.
Countdown End Beeper
The countdown end beeper lets you know when the countdown reaches zero.
- When the progress beeper is turned off, the countdown end beeper sounds for about 10 seconds, or until you press any button to stop it.
- When the progress beeper is turned on, the countdown end beeper sounds for about one second.
Progress Beeper
When the progress beeper is turned on, the watch uses beeps to signal
countdown progress as described below.
- Starting from five minutes before the end of the countdown, the watch emits four short beeps at the top of each countdown minute.
- 30 seconds before the end of the countdown, the watch emits four short beeps.
- The watch emits a short beep for each of the last 10 seconds of the countdown.
- If the countdown start time is six minutes or greater, the watch emits a short beep for each second of the final 10 seconds before the five-minute point is reached. Four short beeps are emitted to signal when the five-minute point is reached.
To configure the countdown timer
-
While the countdown start time is on display in the Countdown Timer Mode, hold down A until the current countdown start time starts to flash, which indicates the setting screen.
- If the countdown start time is not displayed, use the procedure under “To use the countdown timer” to display it.
-
Press C to move the flashing in the sequence shown below to select other settings.
-
When the setting you want to change is flashing, use B and D to change it as described below.
To specify a countdown start time of 24 hours, set -
Press A to exit the setting screen.
You can also perform steps 1 and 2 of the above procedure whenever you need to view the current auto-repeat and progress beeper settings.
To use the countdown timer
Press D while in the Countdown Timer Mode to start the countdown timer.
- The countdown timer operation continues even if you exit the Countdown Timer Mode.
- Press D while a countdown operation is in progress to pause it. Press D again to resume the countdown.
- To stop a countdown operation completely, first pause it (by pressing D), and then press B. This returns the countdown time to its starting value.
Alarms
You can set up to five independent multi-function alarms with hour, minutes,
month, and day. When an alarm is turned on, the alarm tone sounds when the
alarm time is reached. One of the alarms is a snooze alarm, while the other
four are one-time alarms.
You can also turn on an Hourly Time Signal that causes the watch to beep twice
every hour on the hour.
- There are five alarm screens numbered AL1, AL2, AL3, and AL4 for the one-time alarm, a snooze alarm screen indicated by SNZ. The Hourly Time Signal screen is indicated by SIG.
- All of the operations in this section are performed in the Alarm Mode, which you enter by pressing C.
Alarm Types
The alarm type is determined by the settings you make, as described below.
-
Daily alarm
Set the hour and minutes for the alarm time. This type of setting causes the alarm to sound every day at the time you set it. -
Date alarm
Set the month, day, hour, and minutes for the alarm time. This type of setting causes the alarm to sound at a specific time, on the specific date you set. -
1-Month alarm
Set the month, hour, and minutes for the alarm time. This type of setting causes the alarm to sound every day at the time you set, only during the month you set. -
Monthly alarm
Set the day, hour, and minutes for the alarm time. This type of setting causes the alarm to sound every month at the time you set, it on the day you set it.
To set an alarm time
- In the Alarm Mode, use D or B to scroll through the alarm screens until the one whose time you want to set is displayed.
- To set a one-time alarm, display an alarm screen AL1, AL2, AL3, or AL4. To set the snooze alarm, display the SNZ screen.
- The snooze alarm repeats every five minutes.
- After you select an alarm, hold down A until the hour setting of the alarm time starts to flash, which indicates the setting screen.
- This operation turns on the alarm automatically.
- Press C to move the flashing in the sequence shown below to select other settings.
- While a setting is flashing, use D and B to change it as described below.
- Press A to exit the setting screen.
Alarm Operation
The alarm tone sounds at the preset time for 20 seconds, regardless of the
mode the watch is in. In the case of the snooze alarm, the alarm operation is
performed a total of seven times, every five minutes, until you turn the alarm
off.
- Alarm and Hourly Time Signal operations are performed by the Timekeeping Mode time.
- To stop the alarm tone after it starts to sound, press any button.
- Performing any one of the following operations during a 5-minute interval between snooze alarms cancels the current snooze alarm operation.
- Displaying the Timekeeping Mode setting screen
- Displaying the SNZ setting screen
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To turn an alarm on and off
- In the Alarm Mode, use D to select an alarm.
- Press A to toggle it on and off.
- Turning on an alarm (SNZ, AL1, AL2, AL3, or AL4) displays the alarm on indicator ( SNZ,1,2,3,4 ).
- In all modes, the alarm on indicator is shown for the alarm that is currently turned on.
- The alarm on the indicator flashes while the alarm is sounding.
- The snooze alarm indicator ( ) flashes while the snooze alarm is sounding and during the 5-minute intervals between alarms.
To turn the Hourly Time Signal on and off
- In the Alarm Mode, use D to select the Hourly Time Signal (SIG).
- Press A to toggle it on and off.
- The Hourly Time Signal on indicator ( ) is shown on the display in all modes while this function is turned on.
World Time
World Time shows the current time in 48 cities (29 time zones) around the world.
- All of the operations in this section are performed in the World Time Mode, which you enter by pressing C.
To view the time for another city code
In the World Time Mode, press D to scroll eastwardly through city codes. In
the World Time Mode, press B to scroll westwardly through city codes.
- For full information about city codes, see the “City Code Table”.
- If the current time for a city is wrong, check your Timekeeping Mode time and time zone settings and make necessary changes.
To toggle a city code time between Standard Time and Daylight Saving Time
- In the World Time Mode, use D (east) and B (west) to display the city code (time zone) whose Standard Time/Daylight Saving Time setting you want to change.
- Hold down A for about one second to toggle Daylight Saving Time (DST displayed) and Standard Time (DST not displayed).
- The DST indicator is on the display whenever you display a city code for which Daylight Saving Time is turned on.
- Note that the DST/Standard Time setting affects only the currently displayed city code. Other city codes are not affected.
Illumination
This watch has two EL (electro-luminescent) panels that cause the entire
display to glow for easy reading in the dark. The watch’s auto light switch
turns on illumination automatically when you angle the watch for reading
towards your face.
- The auto light switch must be turned on (indicated by the auto light switch indicator) for it to operate.
- See “Illumination Precautions” for more important information.
To illuminate the display
In any mode, press L to turn on the illumination.
- The above operation turns on illumination regardless of the current auto light switch setting.
- You can use the procedure below to select either 3 seconds or 5 seconds as the illumination duration. When you press L, the illumination will remain on for about 3 seconds or 5 seconds, depending on the current illumination duration setting.
To specify the illumination duration
- In the Timekeeping Mode, hold down A until the seconds start to flash, which indicates the setting screen.
- While the seconds are flashing, press B to toggle the setting between 3 seconds ( ) and 5 seconds ( ).
- Press A to exit the setting screen.
About the Auto Light Switch
While the auto light switch is enabled, illumination turns 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 at more than 40 degrees causes illumination to turn on.
- Wear the watch on the outside of your wrist.
Warning
-
Always make sure you are in a safe place whenever you are reading 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.
-
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 B for about three seconds to toggle the auto light switch on (auto light switch indicator displayed) or off (auto light switch indicator not displayed). -
The auto light switch indicator is on the display in all modes while the auto light switch is turned on.
-
To protect against running down the battery, the auto light switch turns off automatically approximately six hours after you turn it on.
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.
Graphic Areas
There are three graphic areas named A, B, and C. The information shown in each
graphic area depends on the current mode.
- The following table shows the information that appears in graphic area A.
- In all modes, graphic area B shows the Stopwatch Mode (ST1) minutes (one segment each for 5 minutes, 10 minutes, etc.).
- In all modes, graphic area C shows the Stopwatch Mode (ST2) minutes (one segment each for 5 minutes, 10 minutes, etc.).
Flash Alert
When Flash Alert is turned on, the illumination flashes for the alarms, the Hourly Time Signal, the countdown alarm, and the stopwatch (ST1) auto start.
To turn Flash Alert on and off
In the Timekeeping Mode, hold down D for about three seconds to toggle Flash
Alert on (Flash Alert indicator displayed) or off (Flash Alert indicator not
displayed).
- Illumination flashes twice when you turn Flash Alert on and once when turn Flash Alert off.
- While Flash Alert is turned on, the Flash Alert indicator remains on the display in all modes.
- Note that pressing D to toggle Flash Alert on or off will also switch timekeeping between 12-hour and 24-hour format.
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 alarms, the Hourly Time Signal, the countdown alarm, and the stopwatch auto start all operate normally.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the display), hold down C to
toggle the button operation tone on (MUTE not displayed) and off (MUTE
displayed).
- Holding down C to turn the button operation tone on or off also causes the watch’s current mode to change.
- The MUTE indicator is displayed in all modes when the button operation tone is turned off.
Auto Return Features
- If you leave the watch in the Alarm Mode for two or three minutes without performing any operation, it automatically changes to the Timekeeping Mode.
- If you leave a screen with flashing digits on the display for two or three minutes without performing any operation, the watch automatically exits the setting screen. Scrolling
The B and D buttons 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 or Alarm Mode, the data you were viewing when
you last exited the mode appears first.
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.
World Time
All World Time Mode times are calculated from the current Home City time in
the Timekeeping Mode using UTC differential values.
- The second count of the World Time is synchronized with the second count of the Timekeeping Mode.
- The UTC differential is a value that indicates the time difference between a reference point in Greenwich, England, and the time zone where a city is located.
- The letter “UTC” is the abbreviation for “Coordinated Universal Time”, which is the worldwide scientific standard of timekeeping. It is based upon carefully maintained atomic (cesium) clocks that keep time accurately to within microseconds. Leap seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s rotation.
Illumination Precautions
- The electro-luminescent panel that provides illumination loses power after very long use.
- Illumination may be hard to see when viewed under direct sunlight.
- The watch may emit an audible sound whenever the display is illuminated. This is due to the vibration of the EL panel used for illumination and does not indicate malfunction.
- Illumination turns off automatically whenever an alarm sounds.
- Frequent use of illumination runs down the battery.
Auto light switch precautions
- Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light switch to operate when it is not needed, which shortens battery life. If you want to wear the watch on the inside of your wrist, turn off the auto light switch feature.
- 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 specify the illumination duration”), even if you keep the watch pointed towards your face.
- Static electricity or magnetic force can interfere with the 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 you 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 a 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 the mechanical operation of the auto light switch and does not indicate a problem with the watch.
City Code Table
Based on data as of December 2005.