Casio MA0304-A User's Manual
Contents
1. not displayed e Note that pressing in the above operation also turns on the backlight e When the end of the countdown is reached while Auto repeat indicator auto repeat is on the alarm sounds but the countdown restarts from the beginning without stopping You can stop the countdown by pressing and manually reset to the start time by pressing e The auto repeat indicator appears in the Countdown Timer Mode only Stopwatch The stopwatch lets you measure elapsed time split times 1 100 second and two finishes The display range of the stopwatch is 23 hours Cf ELS 59 minutes 59 99 seconds e The stopwatch continues to run restarting from zero mnm after it reaches its limit until you stop it The stopwatch measurement operation continues even 83 f if you exit the Stopwatch Mode 1 e Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement Seconds e All of the operations in this section are performed in the Stopwatch Mode which you enter by pressing Hours Minutes To measure times with the stopwatch Elapsed time O lt p gt 0 0 m 0 m O Start Stop Re start Stop Clear Split time Start Split Split release Stop Clear SPL displayed Two Finishes Start Split Stop Split release Clear First runner Second runner Display time of finishes finishes second runner Display time of first runner Dual Ti2. described below in any mode Note that this watch features a Full Auto LED Light so the auto light switch operates only when available light is below a certain level It does not turn on the backlight under bright ight Be sure to wear the watch on the outside of your left wrist while using the auto light switch CASIO Moving the watch to a position that is parallel to the ground and then tilting it towards you more than 40 degrees causes the backlight to turn on N More than 40 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 surprise or distract others around you When you are wearing the watch make sure that its auto light switch is turned off before riding on a bicycle or operating a motorcycle or any other motor vehicle Sudden and unintended operation of the auto light switch can create a distraction which can result in a traffic accident and serious personal injury To turn the auto light switch on and off In any mode hold down for about two 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 wh
3. settings and Hourly Time Signal settings in the Alarm Mode which you enter by pressing Alarms Alarm date Month Day Alarm number Alarm time Hour Minutes Alarm Types The alarm type is determined by the settings you make as described below e Daily alarm Set the hour and minutes for the alarm time This type of setting causes the alarm to sound everyday at the time you set Date alarm Set the month day hour and minutes for the alarm time This type of setting causes the alarm to sound at the 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 everyday at 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 time you set on the day you set To set an alarm time 1 In the Alarm Mode use to scroll through the alarm screens until the one whose time you want to set is displayed a 105 4 To set a one time alarm display one of the screens indicated by an alarm number from through 5 To set the snooze alarm display the screen indicated by i 2 After you select an alarm hold down until the hour setting of the alarm time starts to flash which indicates the setting screen e This operation automatically turns on the alarm 3 Press to move the flashing in the sequ
4. to the watch 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 and when you have the battery replaced e Turn on the watch s Power Saving function and keep it in an area normally exposed to bright light when storing it for long periods This helps to keep the rechargeable battery from going dead Battery Power Indicator The battery power indicator on the display shows you the current status of the rechargeable battery s power Battery Power Batley power indicator Function Status indicator HI All functions enabled MID All functions enabled vllly Beeper tone backlight Low 2 display and buttons are ZEHARGES disabled TIL AANS Charge Soon Alert 4 All functions including timekeeping are disabled The flashing LOW CHARGE indicator at Level 3 tells you that battery power is very low and that exposure to bright light for charging is required as soon as possible At Level 4 all functions are disabled and settings return to their initial factory defaults Functions are enabled once again after the rechargeable battery is charged but you need to set the time and date after the battery reaches Level 3 indicated by flashing LOW CHARGE indicator from Level 4 You will not be able to set any of the other settings until the battery reaches Level 2 no LOW CHARGE indicator
5. 2 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 e 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 About This Manual e Button operations are indicated using the letters shown in the illustration e 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 In any mode hold down for about two seconds to return to the Timekeeping Mode Countdown Timer Mode Stopwatch Mode Dual Time Mode Co 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 can be configured as a snooze alarm or a one time 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 alarms numbered through 5 You can configure Alarm f as a snooze alarm or a one time alarm Alarms through can be used as one time alarms only You can configure alarm
6. MA0304 A USER S GUIDE 2810 Getting Acquainted Congratulations upon your selection of this CASIO watch To get the most out of your purchase be sure to carefully read this manual and keep it on hand for later reference when necessary Expose the watch to bright light to charge its battery before using it You can use this watch even as its battery is being charged by exposure to bright light Be sure to read Battery of this manual for important information you need to know when exposing the watch to bright light If the display of the watch is blank If the Power Saving on P SAVE indicator flashes on the display it means that the display is blank because the watch s Power Saving function has turned off the display to conserve power Power Saving automatically turns off the display and puts the watch into a sleep state whenever your watch is left for a certain period where it is dark e The initial factory default setting is Power Saving on The watch recovers from the sleep state if you move it to a well lit area if you press any button or if you angle the watch towards your face for reading See Power Saving Function for more information General Guide Press to change from mode to mode In any mode press to illuminate the display Timekeeping Mode Alarm Mode Timekeeping Use the Timekeeping Mode to set and view the current Month Day time and date Day of
7. after dropping to Level 4 e Leaving the watch in direct sunlight or some other very strong light source can cause the battery power indicator to temporarily show a reading that is higher than the actual battery level The correct battery power indicator should appear after a few minutes e If you use the backlight or any of the alarm functions a number of times during a short period the RECOVER indicator appears on the display and the following operations become disabled until battery power recovers Backlight Beeper tone After some time battery power will recover and the RECOVER indicator will disappear indicating that the above functions are enabled again Charging Precautions Certain charging conditions can cause the watch to become very hot Avoid leaving the watch in the areas described below whenever charging its rechargeable battery Also note that allowing the watch to become very hot can cause its liquid crystal display to black out The appearance of the LCD should become normal again when the watch returns to a lower temperature Warning Leaving the watch in bright light to charge its rechargeable battery can cause it to become quite hot Take care when handling the watch to avoid burn injury The watch can become particularly hot when exposed to the following conditions for long periods On the dashboard of a car parked in direct sunlight Too close to an incandescent lamp Under direct sunlight Charging Guide Afte
8. and then bring it back up again Under certain conditions the backlight may not light until about one second after you turn the face of the watch towards you This does not necessarily indicate malfunction of the backlight 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
9. ence shown below to select other settings gt Hour gt Minutes gt gt Month gt Day CASIO USER S GUIDE 2810 While a setting is flashing press to increase it To set an alarm that does not include a month Daily alarm Monthly alarm set for the month Press until the mark appears between 12 and 1 while month setting is flashing To set an alarm that does not include a day Daily alarm 1 Month alarm set for the day Press until the mark appears between the end of the month and 1 while the day setting is flashing When setting the alarm time using the 12 hour format take care to set the time correctly as a m or p m P indicator 5 Press to exit the setting screen 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 the snooze alarm the alarm operation is performed a total of seven times every five minutes until you turn the alarm off or change it to a one time alarm 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 alarm i setting screen To test the alarm In the Alarm Mode hold down to sound the alarm To tu
10. ile the auto light switch is turned on USER S GUIDE 2810 Battery This watch is equipped with a solar cell and a rechargeable battery secondary battery that is charged by the electrical power produced by the solar cell The illustration shown below shows how you should position the watch for charging Example Orient the watch so its face is pointing at a Solar cell light source Note that charging efficiency drops when any part of the solar cell is blocked by clothing etc The illustration shows how to position a watch with a resin band Important Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is blocked from exposure to bright light can cause rechargeable battery power to run down Be sure that the watch is normally exposed to bright light whenever possible This watch employs a solar cell that converts light into electricity which charges a built in rechargeable battery Normally the rechargeable battery should not need replacement but after very long use over a number of years the rechargeable battery may lose its ability to achieve a full charge Should you notice problems with getting the rechargeable battery to a full charge contact your dealer or CASIO distributor about having the rechargeable battery replaced The rechargeable battery should be replaced with a CASIO specified ML2016 battery only Other rechargeable batteries can cause damage
11. information about watch operation It also contains important precautions and notes about the various features and functions of this watch Power Saving Function When turned on the Power Saving function automatically Power Saving on puts the watch into a sleep state whenever it is left in an indicator area where it is dark for about one hour in the Timekeeping Mode Alarm Mode or Dual Time Mode The sleep state is indicated by a blank screen with Power Saving on P SAVE indicator flashing on it In the sleep state all functions are enabled except for the display e Wearing watch inside the sleeve of clothing can cause it to enter the sleep state e 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 e Press any button Angle the watch towards your face for reading To turn Power Saving on and off In the Timekeeping Mode hold down O for about two seconds to toggle Power Saving on P SAVE indicator displayed and off P SAVE indicator not displayed Note that pressing also toggles between 12 hour timekeeping and 24 hour timekeeping Auto return features If you leave a screen with flashing digits for two or three minutes without performing any operation the watch automatically saves an
12. me The Dual Time Mode lets you keep track of time in a different time zone In the Dual Time Mode the seconds count is synchronized with the seconds count of the Timekeeping Mode To set the Dual Time 1 Press to enter the Dual Time Mode 2 In the Dual Time Mode hold down until the hour setting starts to flash which indicates the setting screen 3 Press to change the selection in the following sequence Hour Minutes Hour lt lt gt Minutes 4 Press to increase the setting 5 Press to exit the setting screen Seconds Backlight The backlight uses an LED light emitting diode and a light guide panel that cause the entire display to glow for easy reading in the dark The watch s auto light switch automatically turns on the backlight when you angle the watch towards your face in the dark e The auto light switch must be turned on indicated by the auto light switch indicator for it to operate A oa See Backlight Precautions for other important Auto light switch indicator information about using the backlight To turn on the backlight manually In any mode press to illuminate the display for about one second The above operation turns on the backlight regardless of the current auto light switch setting About the Auto Light Switch Turning on the auto light switch causes the backlight to turn on for about one second whenever you position your wrist as
13. r a full charge timekeeping remains enabled for up to about 11 months while the watch is used under the conditions described below Operating Conditions e Watch is not exposed to light Display on 18 hours per day sleep state 6 hours per day 1 backlight operation 1 5 seconds per day 10 seconds of alarm operation per day Charge Times Exposing the watch to light for the periods shown below each day restores the power used by the above operating conditions Approximate Exposure Level Brightness Exposure Time Outdoor Sunlight 50 000 lux 5 minutes Sunlight Through a Window 10 000 lux 24 minutes Daylight Through a Window on a Cloudy Day 5 000 lux 48 minutes Indoor Fluorescent Lighting 500 lux 8 hours Stable operation is promoted by frequent charging CASIO Recovery Times The table below shows the amount of exposure that is required to take the battery from one level to the next Exposure Level Approximate Exposure Time Brightness Level 4 Level 3 Level 2 Level 1 peel Outdoor Sunlight 50 000 lux 24 hours 15 hours 17 hours OCCU a Window 122 hours 76 hours 85 hours Daylight Through a Window on a Cloudy Day 5 000 lux The above exposure time values are all for reference only Actual required exposure times depend on lighting conditions TOR 154hours 171 hours Reference This section contains more detailed and technical
14. rn Alarms through 5 and the Hourly Time Signal on and off 1 In the Alarm Mode use to select a one time alarm alarm number through 5 or the Hourly Time Signal G8 2 Press to toggle it on and off The on off status of Alarms through 5 and the Hourly Time Signal is shown by indicators along the bottom of the displays The alarm on indicators and Hourly time Signal on indicator SIG are displayed in all modes e While an alarm is sounding the applicable alarm on indicator flashes on the display Alarm on indicator Hourly time signal on indicator To select the operation of Alarm i 1 In the Alarm Mode use to select Alarm 4 2 Press to cycle through the available settings in the sequence shown below Snooze on indicator SNZ and Alarm on indicator AL1 ne ee ee ee One time alarm on Snooze alarm on Alarm off The snooze on indicator SNZ and Alarm on indicator AL1 are displayed in all modes The snooze on indicator SNZ flashes during the 5 minute intervals between alarms The alarm indicator AL1 and or SNZ flashes while the alarm is sounding Countdown Timer The countdown timer can be set within a range of Hours Minutes one minute to 24 hours An alarm sounds when the countdown reaches zero e You can also select auto repeat which automatically restarts the countdown from the original value you set whenever zero is reached All of the operations in thi
15. s section are performed in the Countdown Timer Mode which you enter by pressing Seconds To use the countdown timer Press while in the Countdown Timer Mode to start the countdown timer When the end of the countdown is reached and auto repeat is turned off the alarm sounds for 10 seconds or until you stop it by pressing any button The countdown time is automatically reset to its starting value after the alarm stops The countdown timer measurement operation continues even if you exit the Countdown Timer Mode Press while a countdown operation is in progress to pause it Press again to resume the countdown To completely stop a countdown operation first pause it by pressing and then press This returns the countdown time to its starting value To set the countdown start time 1 In the Countdown Timer Mode hold down until the A hours setting of the countdown start time starts to flash which indicates the setting screen 2 Press to move the flashing between the hours and minutes settings 3 While a setting is flashing use to change it To set the starting value of the countdown time to 24 hours set 0 50 4 Press to exit the setting screen To turn auto repeat on and off 1 In the Countdown Timer Mode hold down until the hours setting of the countdown start time starts to flash which indicates the setting screen 2 Press to toggle auto repeat on displayed and off
16. week To set the time and date 1 In the Timekeeping Mode hold down until the seconds start to flash which indicates the setting screen 2 Press to move the flashing in the sequence shown below to select other settings gt Seconds gt Hour Minutes PM indicator ds l Seconds Day lt Month jx Year Hour Minutes 3 When the setting you want to change is flashing press to change it as described below To change this setting Perform this button operation Seconds Press to reset to 00 Hour Minutes Year Month Day Press to increase the setting Pressing while the seconds are in the range of 30 to 59 resets them to 00 and adds 1 to the minutes In the range of 00 to 29 the minutes are unchanged 4 Press to exit the setting screen The day of the week is automatically displayed in accordance with the date year month and day settings The year can be set in the range of 2000 to 2099 e The watch s built in full automatic calendar automatically makes allowances for different month lengths and leap years Once you set the date there should be no reason to change it except after you have the watch s battery replaced or when battery power drops to Level 4 To toggle between 12 hour and 24 hour timekeeping In the Timekeeping Mode press to toggle between 12 hour timekeeping and 24 hour timekeeping e With the 1
17. y settings you have made up to that point and exits the setting screen Data and Setting Scrolling The button is used to scroll through setting screen data on the display Holding down this button during a scroll operation scrolls through the data at high speed Backlight Precautions The illumination provided by the backlight may be hard to see when viewed under direct sunlight The backlight automatically stops illuminating whenever an alarm sounds Frequent use of the backlight shortens the battery operating time Auto light switch precautions e 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 operating time If you want to wear the watch on the inside of your wrist turn off the auto light switch feature e The backlight may not light 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 e The backlight turns off in about one second even if you keep the watch pointed towards your face More than 15 degrees too high Static electricity or magnetic force can interfere with proper operation of the auto light switch If the backlight does not light try moving the watch back to the starting position parallel with the ground and then tilt it back toward you again If this does not work drop your arm all the way down so it hangs at your side
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