G-Shock GA-1000 - Manual (Page 3)

E-16
2. Press D to move the fl ashing in the sequence shown below to select the other settings.
City Code DST
Illumination
Duration Button Operation
Tone On/Off Day Month
12/24-Hour
Format
Seconds Hour
Year
Minutes
• The following steps explain how to confi gure timekeeping settings only.
3. When the timekeeping setting you want to change is fl ashing, use E and/or B to change it as
described below.
Screen To do this: Do this:
Change the city code Use E (East) and B (West).
Toggle between daylight saving time (ON) and
standard time (OFF).
Press E.
Toggle between 12-hour (12H) and 24-hour (24H)
timekeeping.
Press E.
Reset the seconds to 00
(If the current seconds count is between 30 and 59,
one is added to the minute count).
Press E.
Change the hour or minutes
Use E (+) and B (–).
Change the year, month, or day
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4. After all of the settings are the way you want, press A to exit the setting screen.
Note
• For information about selecting a Home City and confi guring the DST setting, see “Confi guring
Home City Settings” (page E-13).
• While the 12-hour format is selected for timekeeping, a P (PM) indicator will appear for times from
noon to 11:59 p.m. No indicator appears for times from midnight to 11:59 a.m. With 24-hour format,
time is displayed from 0:00 to 23:59, without any P (PM) indicator.
• 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 day of the week changes automatically when the date changes.
• Refer to the pages shown below for more information on Timekeeping Mode settings.
- Button operation tone on/off: “To enable or disable the button operation tone” (page E-52)
- Illumination duration setting: “To change the illumination duration” (page E-48)
E-18
Hand Home Position Adjustment
Strong magnetism or impact can cause the hands of the watch to be off.
• Home position adjustment is not necessary when the analog time and digital time are the same time in
the Timekeeping Mode.
To adjust home positions
1. In the Timekeeping Mode, hold down A and keep it depressed for about fi ve
seconds until H.SET appears on the upper display.
• When you release A after H.SET appears, the second hand will move
to 12 o’clock. This indicates the second hand home position adjustment
mode.
• Though ADJ will appear in the upper display about two seconds after you
hold down A, do not release the button yet. Keep it depressed until H.SET
appears.
• Use the D button to select a hand for adjustment. Each press of D
cycles in sequences from the second hand, to the hour and minute hands,
and then the mode dial hand. Selecting a hand causes it to move to 12
o’clock and the content of the lower display changes as shown in the table
below.
Lower display Selected hand
Flashing 00 Second hand
Flashing 0:00 Hour and minute hands
Flashing Sub Mode dial hand
• If the selected hand does not move exactly to 12 o’clock, perform step 2 below to adjust it.
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• The watch will return to regular timekeeping automatically if you do not perform any operation for
about two or three minutes. Any changes you have made to settings up to that point will be saved.
2. Use E (+) and B (–) to adjust the position of the currently selected hand.
• Holding down either button will cause the hand to move at high speed. Once started, high-speed
hand movement will continue even if you release the button. To stop high-speed hand movement,
press any button.
• The second hand and mode dial hand will automatically stop high-speed movement after they
complete one revolution. The minute hand will stop automatically after 12 revolutions.
3. Press A to exit home position correction and return to regular timekeeping.
Note
After performing home position adjustment, enter the Timekeeping Mode and check to make sure that the
analog hands and the lower display indicate the same time. If they do not, perform home position
adjustment again.
E-20
Using the Digital Compass
In the Digital Compass Mode, a built-in bearing sensor detects magnetic north at regular intervals and
indicates one of 16 directions on the upper display.
To perform a digital compass operation
1. Place the watch on a fl at surface. If you are wearing the watch, make
sure that your wrist is horizontal (in relation to the horizon).
2. Point the 12 o’clock position of the watch in the direction you want to
check.
3. In any mode (except a setting mode), press C to perform a digital
compass operation.
• This will cause the mode dial hand to move to COMP.
• COMP will appear in the upper display to indicate that a digital
compass operation is in progress.
• See “Digital Compass Readings” (page E-21) for information
about how direction readings are indicated by the watch.
Note
• If there is an angle value in the upper display, it means that the
bearing memory record (page E-26) is displayed. If this happens,
press
E to exit the bearing memory record.
4. To return to the mode you were in immediately before entering the
Digital Compass Mode, press D. To enter the Timekeeping Mode,
hold down D for at least two seconds.
NW
0 WNW
W
WSW
SW
SSW
S
SSE SE
ESE
E
ENE
NE
NNE
N
NNW
90 180
270
12 o’clock position
North pointer Direction
indicator
Angle value (in degrees)
NW
0 WNW
W
WSW
SW
SSW
S
SSE SE
ESE
E
ENE
NE
NNE
N
NNW
90 180
270
12 o’clock position
North pointer Direction
indicator
Angle value (in degrees)
E-21
Digital Compass Readings
• When you press C to start a digital compass operation, COMP will initially appear on the upper
display. About two seconds after you start a digital compass operation, an indicator will appear in the
upper display to indicate what direction the 12 o’clock position of the watch is pointed. The second
hand will point to magnetic north.
• After the fi rst reading is obtained, the watch will continue to take digital compass readings automatically
each second for up to 20 seconds. After that, the digital compass operation will stop automatically.
• The direction indicator and angle value will show - - - to indicate that the digital compass operation is
complete.
• The auto light switch is disabled during the 20 seconds that digital compass readings are being taken.
• The following table shows the meanings of each of the direction abbreviations that appear on the upper
display.
Direction Meaning Direction Meaning Direction Meaning Direction Meaning
N North NNE
North-
northeast
NE Northeast ENE
East-
northeast
E East ESE
East-
southeast
SE Southeast SSE
South-
southeast
S South SSW
South-
southwest
SW Southwest WSW
West-
southwest
W West WNW
West-
northwest
NW Northwest NNW
North-
northwest
• The margin of error for the angle value and the direction indicator is ±15 degrees while the watch is
horizontal (in relation to the horizon). If the indicated direction is northwest (NW) and 315 degrees, for
example, the actual direction can be anywhere from 300 to 330 degrees.
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• Note that performing a digital compass operation while the watch is not horizontal (in relation to the
horizon) can result in large error.
• You can calibrate the bearing sensor if you suspect the direction reading is incorrect.
• Any ongoing digital compass operation is paused temporarily while the watch is performing an alert
operation (daily alarm, Hourly Time Signal, countdown timer alarm) or while illumination is turned on (by
pressing
B). The digital compass operation resumes for its remaining duration after the operation that
caused it to pause is fi nished.
• See “Digital Compass Precautions” (page E-33) for important information about taking direction readings.
Calibrating the Bearing Sensor
You should calibrate the bearing sensor whenever you feel that the direction readings being produced by
the watch are off. You can use any one of two different bearing sensor calibration methods: bidirectional
calibration or magnetic declination correction.
• Bidirectional Calibration
Bidirectional calibration calibrates the bearing sensor in relation to magnetic north. Use bidirectional
calibration when you want to take readings within an area exposed to magnetic force. This type of
calibration should be used if the watch becomes magnetized for any reason.
Important!
The more correctly you perform bidirectional calibration, the better the accuracy of the readings
produced by the bearing sensor. You should perform bidirectional calibration whenever you change
environments where you use the bearing sensor, and whenever you feel that the bearing sensor is
producing incorrect readings.
E-23
• Magnetic Declination Correction
With magnetic declination correction, you input a magnetic declination angle (difference between
magnetic north and true north), which allows the watch to indicate true north. You can perform this
procedure when the magnetic declination angle is indicated on the map you are using. Note that you can
input the declination angle in whole degree units only, so you may need to round off the value specifi ed
on the map. If your map indicates the declination angle as 7.4°, you should input 7°. In the case of 7.6°
input 8°, for 7.5° you can input 7° or 8°.
Precautions about bidirectional calibration
• You can use any two opposing directions for bidirectional calibration. You must, however, make sure
that they are 180 degrees opposite each other. Remember that if you perform the procedure
incorrectly, you will get wrong bearing sensor readings.
• Do not move the watch while calibration of either direction is in progress.
• You should perform bidirectional calibration in an environment that is the same as that where you plan
to be taking direction readings. If you plan to take direction readings in an open fi eld, for example,
calibrate in an open fi eld.
To perform bidirectional calibration
1. In the Digital Compass Mode, hold down A.
• The second hand will move to 12 o’clock, indicating the
bidirectional calibration mode.
• At this time the upper display will show an upward pointing arrow
( ) and the lower display will show -1-. These indicate that the
watch is ready for calibration of the fi rst direction.
Operation Guide 5302