Casio MA0911 -EB User Manual
MA0911 -EB
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Operation Guide 5083 (OC)
Congratulations upon your selection of this CASIO watch.
This watch does not have a city code that corresponds to the UTC offset of –3.5 hours. Because of this, the
radio-controlled atomic timekeeping function will not display the correct time for Newfoundland, Canada.
Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by you
or any third party arising through the use of this product or its malfunction.
About This Manual
Button operations are indicated using the letters A through D shown in the
illustration.
Hand Functions
z Hour Hand
x Second Hand
c Minute Hand
v Left Dial Hand: Indicates the current day of the week and current mode.
b Right Dial Hands: Indicate a time, in 24-hour format, depending on the current
n Day
This User’s Guide uses numbers shown above to identify watch hands and
indicators.
mode.
Things to check before using the watch
1. Hold down C for about two seconds to enter the Timekeeping Mode, and then observe the
movement of the
Is the x Second Hand moving smoothly at one-second intervals?
Is the x Second Hand moving at two-second intervals
or is it stopped completely?
Power is low. Charge the watch by placing it in a
location where it is exposed to light. For details, see
“Charging the Watch”.
Second Hand.
NO
YES
The watch is charged suffi ciently. For details
about charging, see “Charging the Watch”.
Go to step 2.
YES
NEXT
2. Check the Home City and the daylight saving time (DST) setting.
Use the procedure under “To confi gure Home City settings” to confi gure your Home City and daylight saving
time settings.
Important!
Proper time calibration signal reception and World Time settings depend on correct Home City, time, and
date settings in the Timekeeping Mode. Make sure you confi gure these settings correctly.
3. Set the current time.
To set the time using a time calibration signal
See “To get ready for a receive operation”.
To set the time manually
See “Confi guring Current Time and Date Settings Manually”.
The watch is now ready for use.
For details about the watch’s radio controlled timekeeping feature, see “Radio Controlled Atomic
Timekeeping”.
Charging the Watch
The face of the watch is a solar cell that generates power from light. The generated power charges a built-in
rechargeable battery, which powers watch operations. The watch charges whenever it is exposed to light.
Charging Guide
Warning!
Leaving the watch in bright light for charging 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
Important!
Keep the watch in an area normally exposed to bright light when storing it for long periods. This helps to
ensure that power does not run down.
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 light can cause power to run down. Make sure that the watch is exposed to bright
light whenever possible.
Whenever you are not wearing
the watch, leave it in a location
where it is exposed to light.
Best charging performance
is achieved by exposing
the watch to light that is as
strong as possible.
When wearing the watch, make
sure that its face is not blocked
from light by the sleeve of your
clothing.
The watch may enter a sleep
state if its face is blocked by your
sleeve even only partially.
Power Levels
You can get an idea of the watch’s power level by observing the movement of the
Second Hand in the Timekeeping Mode.
If the
Second Hand is moving normally at one-second intervals, power is at
Level 1.
If the
Second Hand is moving at two-second intervals, power is at Level 2,
which is quite low. Expose the watch to light as soon as possible so it can
Moves at two-second
intervals.
When power drops to Level 3, all functions will be disabled but the watch will continue to keep time
internally for about one week. If you recharge the battery suffi ciently during this period, the analog hands
will move automatically to the correct setting and normal timekeeping will resume. After one week, all
settings (including timekeeping) will be cleared. Recharging the battery will reset all settings to their initial
factory defaults.
Power Recovery Mode
The watch is designed to go into a power recovery mode that stops hand operation temporarily whenever
power suddenly drops below a certain level due to overuse of the alarm tone over a short period. Note that all
operations are disabled while the watch is in the power recovery mode.
The hands will move to the correct positions and the watch will resume normal operation after power recovers
(in about 15 minutes). Putting the watch in a location where it is exposed to light will help power to recover
sooner.
charge.
Level Hand Movement Function Status
1 Normal. All functions enabled
Second Hand moves at two-second
2
intervals.
Day changes to 1 (home position).
Second Hand stopped.
3
z Hour Hand and c Minute Handstopped
at 12 o’clock.
Beeper, time calibration signal
reception disabled
All functions disabled
Charging Times
Exposure Level (Brightness)
Outdoor sunlight (50,000 lux) 8 minutes 2 hours 23 hours
Window sunlight (10,000 lux) 30 minutes 6 hours 90 hours
Window sunlight on cloudy day (5,000 lux) 48 minutes 8 hours – – –
Indoor fl uorescent lighting (500 lux) 8 hours 92 hours – – –
1 Approximate exposure each day to generate power for normal daily operation. *
2 Approximate exposure to take power up one level. *
The above times are for reference only. Actual times depend on lighting conditions.
For details about the operating time and daily operating conditions, see the “Power Supply” section of the
Specifi cations.
Power Saving
Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area
where it is dark. The table below shows how watch functions are affected by Power Saving.
There actually are two sleep state levels: “second hand sleep” and “function sleep”.
Elapsed Time in Dark Operation
60 to 70 minutes (second hand sleep)
6 or 7 days (function sleep)
The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep state
when 6:00 AM arrives, however, it will remain in the sleep state.
The watch will not enter a sleep state while it is in the Stopwatch Mode.
To recover from the sleep state
Move the watch to a well-lit area or press any button.
Daily Operation
*1
Second Hand only stopped at 12 o’clock, all other functions enabled
All functions, including analog timekeeping, disabled
Internal timekeeping maintained
Level Change *2
Level 3 Level 2 Level 1
Radio Controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly. However, when using
the watch outside of areas covered by time calibration signals, you will have to adjust the settings manually as
required. See “Confi guring Current Time and Date Settings Manually” for more information.
This section explains how the watch updates its time settings when the city code selected as the Home City is
in Japan, North America, Europe, or China, and is one that supports time calibration signal reception.
If your Home City Code setting is this:
LON, PAR, ATH Anthorn (England), Mainfl ingen (Germany)
HKG Shangqiu City (China)
TYO Fukushima (Japan), Fukuoka/Saga (Japan)
HNL, ANC, LAX, DEN, CHI, NYC Fort Collins, Colorado (United States)
Important!
HNL and ANC are quite far from the calibration signal transmitters, so certain
The areas covered by
conditions may cause reception problems.
When
HNL or HKG is selected as the Home City, only the time and date are adjusted according to the
time calibration signal. You need to switch manually between standard time and daylight saving time
(DST) if required. See “To toggle the Home City time between standard time and daylight saving time” for
information about how to do this.
The watch can receive the signal from the transmitter located
here:
1
Operation Guide 5083 (OC)
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Approximate Reception Ranges
UK and German Signals North American Signal
Anthorn
500 kilometers
1,500 kilometers
The Anthorn signal is receivable
within this area.
Japanese Signal Chinese Signal
500 kilometers
Fukuoka/Saga
Even when the watch is within range of a transmitter, signal reception may be impossible due to the effects
of geographic contours, structures, weather, the time of year, the time of day, radio interference, etc. The
signal becomes weaker at distances of approximately 500 kilometers, which means that the infl uence of the
above conditions becomes even greater.
Signal reception may not be possible at the distances noted below during certain times of the year or day.
Radio interference may also cause problems with reception.
Mainfl ingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles)
−
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers) −
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles) −
Shangqiu (China) transmitter: 500 kilometers (310 miles) −
As of January 2009, China does not use Daylight Saving Time (DST). If China does go to the Daylight
Saving Time system in the future, some functions of this watch may no longer operate correctly.
To get ready for a receive operation
Confi rm that the watch is in the Timekeeping Mode. If it isn’t, hold down 1. C for about two seconds to enter
the Timekeeping Mode.
The antenna of this watch is located on its 12 o’clock side. Position the watch with 12 o’clock facing towards 2.
a window as shown in the nearby illustration. Make sure there are no metal objects nearby.
Fukushima
12 o’clock
or
Mainfl ingen
1,000 kilometers
Signal reception normally is better at night.
The receive operation takes from two to seven minutes, but
in some cases it can take as long as 14 minutes. Take care
that you do not perform any button operation or move the
watch during this time.
Signal reception may be diffi cult or even impossible under
the conditions described below.
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
Changchun500 kilometers
1,500 kilometers
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
To check the result of the latest receive operation
In the Timekeeping Mode, press A.
The
x Second Hand will move to YES (Y) for fi ve seconds if the latest receive
operation was successful, or NO (N) if it was not. After that, normal timekeeping
will resume.
You can return to the Timekeeping Mode manually by pressing
A while the
Radio-controlled Atomic Timekeeping Precautions
Strong electrostatic charge can result in the wrong time setting.
Even if a receive operation is successful, certain conditions can cause the time setting to be off by up to
one second.
The watch is designed to update the date and day of the week automatically for the period January 1, 2000
to December 31, 2099. Updating of the date by signal reception will no longer be performed starting from
January 1, 2100.
If you are in an area where signal reception is not possible, the watch keeps time with the precision noted
in “Specifi cations”.
The receive operation is disabled under any of the following conditions.
While power is at Level 2 or lower −
While the watch is in the power recovery mode −
When the watch is in the function sleep state (“Power Saving”) −
A receive operation is cancelled if an alarm sounds while it is being performed.
Second Hand is pointing to YES (Y) or NO (N).
Note
x Second Hand will indicate NO (N) if you have adjusted the time or date
The
setting manually since the latest receive operation.
Mode Reference Guide
Your watch has four “modes”. The mode you should select depends on what you want to do.
To do this: Enter this mode:
View the current time in your Home City and in one of 29 other cities around the globe
View the current date in the Home City
Confi gure Home City and daylight saving time (DST) settings
Perform a time calibration receive operation
Confi gure time and date settings manually
Use the stopwatch to measure elapsed time Stopwatch Mode
Select one of 29 cities (time zones) around the world and view the current time there
Select daylight saving/summer time (DST) or standard time for a time zone
Set an alarm time Alarm Mode
Selecting a Mode
With this watch, everything starts from the Timekeeping Mode.
To determine the watch’s current mode
Check the position of the v Left Dial Hand as shown under “To select a mode”.
To return to the Timekeeping Mode from any other mode
Except while the watch is performing auto hand home position correction, hold
down C for about two seconds until the
Second Hand returns to 12 o’clock.
Timekeeping Mode
World Time Mode
Inside or among
buildings
What you should do next depends on whether you are using Auto Receive or Manual Receive.3.
Auto Receive: Leave the watch over night in the location you selected in step 2. See “Auto Receive” for
details.
Manual Receive: Perform the operation under “To perform manual receive”.
Auto Receive
With Auto Receive, the watch performs the receive operation each day automatically up to six times (up to
fi ve times for the Chinese calibration signal) between the hours of midnight and 5 a.m. (according to the
Timekeeping Mode time). When any receive operation is successful, none of the other receive operations
for that day are performed.
When a calibration time is reached, the watch will perform the receive operation only if it is in the
Timekeeping Mode or World Time Mode. The receive operation is not performed if a calibration time is
reached while you are confi guring settings.
To perform manual receive
In the Timekeeping Mode, keep 1. A depressed (for about two seconds) as the
the following sequence.
Moves to
YES (or Y for some models) or NO (N) to indicate the last signal reception result, then to
READY (R).
The 2.
Inside a vehicle Near household
appliances,
offi ce equipment,
or a mobile
phone
Near a
construction
site, airport, or
other sources of
electrical noise
Near hightension power
lines
Second Hand indicates the operations the watch is currently performing.
When the x Second Hand is
pointed here:
READY (R) Watch is setting up for reception.
WORK (W) Reception is in progress.
YES (Y) Reception was completed successfully.
NO (N) Reception failed for some reason.
If signal reception is unstable, the
WORK (W) and READY (R).
The receive operation is complete when the 3.
or NO (N) for about fi ve seconds, and then resumes normal timekeeping.
You can return to the Timekeeping Mode manually by pressing
A while the
Second Hand is pointing to YES (Y) or NO (N).
When the receive operation is successful, the watch adjusts the time setting
accordingly. It does not adjust the setting if the operation failed.
Note
To interrupt a receive operation and return to the Timekeeping Mode, press
any button.
It means this:
Second Hand may move between
Second Hand moves to YES (Y)
Among or behind
mountains
Second Hand goes through
To select a mode
Press C to cycle between the modes as shown below. The v Left Dial Hand indicates the currently selected
mode.
Timekeeping Mode Stopwatch Mode
The hand indicates the day of
the week (SU, MO, TU, WE, TH,
FR, SA).
Alarm Mode
The hand points to ALM.
C
The hand points to 0.
World Time Mode
The hand points to STD or DST.
Timekeeping
Use the Timekeeping Mode to view the current time and date. To enter the Timekeeping Mode from any other
mode, hold down C for about two seconds.
Hand Functions
z Hour Hand
x Second Hand
c Minute Hand
v Left Dial Hand: Indicates the day of the week.
b Right Dial Hands: Indicate the current time in the World Time City in 24-hour
n Day
format.
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