Casio Watch MA0811 EA User Manual

MA0811-EA  
Operation Guide 4323 (GMS)  
Before using the watch...  
Power Supply (Charging)  
Your watch runs on electrical power generated from light, which is stored by a chargeable battery.  
To ensure stable operation, make sure that the watch is exposed to light as much as possible.  
Expose the watch to light.  
Whenever you are not wearing the watch on your  
wrist, position it so the face (solar cell) is pointed  
in the direction of a source of bright light.  
When wearing the watch, try to keep your  
sleeve from blocking its face, where the solar  
cell is located.  
Your watch runs on electrical power generated from light, which is stored by a chargeable battery. Long-  
term storage of the watch can cause power to run low, so be sure to expose the watch to light for some  
time before using it for the first time. For information about charging time, see “Power Supply.”  
3OLAR CELL  
,IGHT  
Power Saving  
Power Saving causes the watch to enter a sleep state automatically and stop movement of the analog  
hands in order to save power whenever the watch is left in the dark.  
The watch will exit the sleep state if you expose it to light or perform any button operation.  
Note that the watch also may enter the sleep state and stop if its face is blocked from light by your  
sleeve.  
How the sleep state works  
Sleep Level 1  
Sleep Level 1 is triggered whenever the watch is left in the dark for about one hour any time between the  
hours of 10 p.m. and 6 a.m.  
The second hand will stop at 12 oclock.  
The hour and minute hands continue to operate normally.  
Leave the watch under uorescent lighting, near a  
window, etc.  
Charging efciency is reduced signicantly  
even if the face of the watch is covered only  
partially by your sleeve.  
How the solar cell and battery work  
While the watch is exposed to light...  
Sleep Level 2  
While the watch is not exposed to light...  
Sleep Level 2 is triggered whenever the watch is left in the dark while in Sleep Level 1 for six or seven  
days.  
,IGHT  
3OLAR CELL  
ꢀ,IGHT CHARGES  
THE BATTERYꢁ  
Hour, minute, and second hands stopped at 12 oclock  
Auto Receive disabled  
Timekeeping continues internally.  
%LECTRICAL ENERGY  
$ISCHARGE  
#HARGE  
2ECHARGEABLE  
BATTERY  
2ECHARGEABLE  
BATTERY  
General Guide  
0OWER SUPPLIED TO WATCH  
0OWER SUPPLIED TO WATCH  
Your watch continues to operate even when  
it is not exposed to light. Leaving the watch in  
the dark can run down its battery and cause  
functions to become disabled.  
-ANUAL 2ECEIVE  
ꢀ!BOUT ꢁ SECONDS  
OR  
(OUR HAND  
-INUTE HAND  
Charging Precautions  
Avoid charging the watch in the following locations, and anywhere else where the watch may become  
very hot.  
On the dashboard of an automobile parked in the sun  
Very close to an incandescent light source or other sources of heat  
In a location exposed to direct sunlight for long periods  
4O CHECK THE RESULT OF THE  
LAST RECEIVE OPERATION  
7HILE RECEPTION  
IS IN PROGRESS  
!T THE START OF THE  
RECEIVE OPERATION  
Depending on the light source you are using, the case of the watch may become quite  
hot when charging. Take care to guard against burn injury after charging.  
3ECOND HAND  
Dead Battery  
3UCCESSFUL  
5NSUCCESSFUL  
The following conditions apply when the battery is dead.  
Timekeeping stops.  
$EAD "ATTERY  
(ANDS STOP AT ꢀꢁ OꢂCLOCK  
Auto receive and manual receive are disabled.  
Second hand stops immediately at 12 oclock.  
Hour and minute hands stop at 12 oclock at noon.  
Even if the battery level drops to the point that timekeeping stops, you  
still will be able to recharge the battery and use the watch again.  
After you recharge the battery after it drops to a level where  
timekeeping stops, the hands will move automatically to the current  
time setting.  
A button  
Press to view the last receive result.  
Hold down for about two seconds to trigger time calibration signal manually.  
B button  
This button is used when correcting hand home positions and when setting the time.  
Try to keep the watch exposed to light as much as possible during  
normal use.  
To check the result of the last signal receive operation  
I
During normal timekeeping, press the A button.  
Charging Guide  
This will enter the last signal receive mode. The second hand to move to Y(or YES) if the last  
receive operation was successful or to N(or No) if the last receive operation was unsuccessful.  
Press the A button to exit the last signal receive mode.  
The watch will exit the last signal receive mode automatically if you do not perform any button operation  
for one or two minutes.  
Required Charging Time for One Day of Operation  
The values in this section are base on six minutes of signal reception and 10 seconds of alarm operation  
per day.  
Exposure Level (Brightness)  
Outdoor Sunlight (50,000 lux)  
Charging Time  
9 minutes  
Sunlight through a Window (10,000 lux)  
32 minutes  
51 minutes  
8 hours  
Daylight through a Window on an Overcast Day (5,000 lux)  
Indoor Fluorescent Lighting (500 lux)  
Making sure the watch is exposed to light ensures stable operation.  
Approximate Charge Times Required to Advance to a Higher Level  
Charging Time  
Exposure Level (Brightness)  
Outdoor Sunlight (50,000 lux)  
Until Hand  
Movement Restarts  
Until Full Charge  
3 hours  
9 hours  
19 hours  
68 hours  
110 hours  
− − −  
Sunlight through a Window (10,000 lux)  
Daylight through a Window on an Overcast Day (5,000 lux)  
Indoor Fluorescent Lighting (500 lux)  
14 hours  
146 hours  
Note that the above charging times are for reference only. Actual charging time depends on a variety of  
environmental factors.  
1
 
Operation Guide 4323 (GMS)  
Adjusting the Time Manually  
Home Position Adjustment  
You can perform the following procedures to adjust the time and date when the watch is unable to  
receive a time calibration signal for some reason.  
If the time setting of your watch is not correct even though time calibration signal reception is being  
performed normally, use the procedure in this section to check the home positions of the hands  
and make adjustments as required.  
Note that you do not need to perform the following operation if your watch is showing the correct  
time.  
To enter the adjustment mode  
I
During normal timekeeping, hold down the A button for about ve seconds until the second hand moves  
to READYand then to either AM or PM, depending on the current time setting.  
To enter the home position adjustment mode  
I
.ORMAL 4IMEKEEPING  
(OUR AND -INUTE (AND !DJUSTMENT  
During normal timekeeping, hold down the B button and then the A button, keeping both buttons  
depressed for about ve seconds until the second hand stops in the vicinity of 12 oclock.  
!-  
0-  
.ORMAL 4IMEKEEPING  
3ECOND (AND !DJUSTMENT  
(OME 0OSITION ꢀꢃꢄ OꢅCLOCK  
s
4HE SECOND HAND IS IN  
THE CORRECT POSITION IF IT IS  
POINTED AT ꢃꢄ OꢅCLOCKꢂ )F IT  
ꢀ!BOUT ꢁ SECONDS  
AND  
BUTTON  
ISNꢅTꢆ USE THE  
ADJUST ITꢂ  
BUTTON TO  
-OVES HOUR AND  
MINUTE HANDS  
ꢀ#LOCKWISE  
ꢀ!BOUT ꢁ SECONDS  
BUTTON  
-OVES THE SECOND HANDꢂ  
ꢀ#LOCKWISE  
!-ꢀ0- 3WITCHING  
s
3ECONDS RESTART FROM ꢃꢃ  
AFTER THE TIME IS ADJUSTEDꢄ  
0-  
(OUR AND -INUTE (AND !DJUSTMENT  
(OME 0OSITION ꢀꢃꢄ OꢅCLOCK  
s
4HE HOUR AND MINUTE  
HANDS ARE IN THE CORRECT  
POSITIONS IF THEY ARE  
POINTED AT ꢃꢄ OꢅCLOCKꢂ )F  
THEY ARENꢅTꢆ USE THE  
BUTTON  
!-ꢂ0- SWITCHING  
BUTTON TO ADJUST THEMꢂ  
BUTTON  
Holding the B button will cause the second hand to start to move at  
high speed. To stop high-speed hand movement, press the B button  
again. High speed hand movement also will stop automatically if the  
hour hand completes one revolution (12 hours).  
-OVES HOUR AND  
MINUTE HANDS  
ꢀ#LOCKWISE  
Holding the B button during second, hour, and minute hand  
adjustment will cause the second hand to start to move at high speed.  
High-speed movement will continue even if you release the B button.  
To stop high-speed hand movement, press the B button again.  
High-speed second hand movement will stop automatically after the  
hand completes a 60-second revolution. High-speed hour and minute  
hand movement will stop automatically after the hands complete a  
12-hour cycle.  
The watch will exit the adjustment mode automatically if you do not perform any operation for  
about two or three minutes.  
The watch will exit the home position adjustment mode automatically if you do not perform any  
operation for about two or three minutes.  
3
 

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