Taking Direction Readings - Casio 5242 Operation Manual

Home City/DST
(Hold down for about one second.)
Hour/Minute
Year
4. Rotate the crown to adjust the time (hour and minute) setting.
• With the crown pulled out, rotate the crown more than once in the direction that you want to move
the hands. When you release the crown, the hands will start to move at high speed.
• Note that high-speed reverse movement is not supported.
When adjusting the setting, check to make sure that the c Second Hand correctly indicates an a.m.
•
time or p.m. time.
5. Press B. This will enter the hour setting mode.
6. Rotate the crown to adjust the hour setting only.
• With the crown pulled out, rotate the crown more than once in the direction that you want to move
the hands. When you release the crown, the hands will start to move at high speed.
• Note that high-speed reverse movement is not supported.
When adjusting the setting, check to make sure that the c Second Hand correctly indicates an a.m.
•
time or p.m. time.
If you want to change the date setting at this time, press B and perform the procedure starting from
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step 3 under "To change the current date setting manually" (page E-33).
7. After the setting is the way you want, push the crown back in and lock it.
This causes timekeeping to resume with the c Second Hand starting from 12 o'clock.
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7. Press B. This will enter the year setting mode.
00 00
10 10
The z z Hour Hand will move to the number that represents the tens
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20 20
90 90
digit value of the year and the x x Minute Hand will move to the
number that represents the ones digit value. The c c Second Hand
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will move to 12 o'clock and stop there.
30 30 8. Rotate the crown to adjust the year setting.
The tens digit value setting changes automatically in accordance with
the ones digit value setting.
If you want to change the time setting at this time, press B and
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40 40
80 80 then perform the procedure starting from step 4 under "To change
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the current time setting manually" (page E-31).
70 70
60 60
9. After the setting is the way you want, push the crown back in and lock
Setting the year (tens digit value) Setting the year (tens digit value)
it.
0 0 1 1
Note
2 2
• The watch's built-in full automatic calendar makes allowances for
9 9
different month lengths and leap years. Once you set the date, there
3 3
should be no reason to change it except after you have the watch's
rechargeable battery replaced or after power drops to Level 3.
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4 4
8 8
5 5
7 7
6 6
Setting the year (ones digit value) Setting the year (ones digit value)
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2. While keeping the watch horizontal, press C.
• This will enter the Digital Compass Mode, which is indicated by the
v v Mode Hand moving to COMP.
The c c Second Hand will fi rst move to 12 o'clock. Next it will move to
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indicate magnetic north.
• For information about magnetic north, see "Compass Precautions"
(page E-41).
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The c c Second Hand will continue to move for about 20 seconds after
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you start the digital compass operation as it adjusts its magnetic
north reading. After that, the hand will stop at the fi nal reading.
To update a reading, press C again.
•
3. Press B to return to the Timekeeping Mode.
Calibrating the Bearing Sensor Reading
You should calibrate the bearing sensor reading whenever you feel that the direction readings being
produced by the watch are off. You can use either of two sensor reading calibration methods: bidirectional
calibration or northerly calibration.
• Bidirectional Calibration and Northerly Calibration
Bidirectional calibration and northerly calibration calibrate the accuracy of the bearing sensor. 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. With northerly
calibration, you "teach" the watch which way is north (which you have to determine with another compass
or some other means).
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3. Rotate the watch 180 degrees.
4. Press C to start calibration of Point 2.
After about seven seconds, the c c Second Hand will move to Y
•
(Yes) if Point 2 calibration was successful or to N (No) if it was not
successful.
If the c c Second Hand is pointing at N (unsuccessful), press C to
•
return to Point 1 calibration.
5. After calibration is complete, push the crown back in and then lock it.
• This will start a magnetic north reading operation.
Press B to return to the Timekeeping Mode.
•
To perform northerly calibration
Important!
If you want to perform both northerly and bidirectional calibration, perform bidirectional calibration fi rst,
and then perform northerly calibration. This is necessary because bidirectional calibration cancels any
existing northerly calibration setting.
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Operation Guide 5242
Hour
Month Day
To change the current date setting manually
1. In the Timekeeping Mode, loosen the crown and then pull it out.
This will cause the c c Second Hand to move to the city code of the
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currently selected Home City.
2. Hold down B for about one second.
The c c Second Hand will indicate whether the current time is a.m. (A)
•
or p.m. (P).
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3. Press B twice.
The b b Day Indicator will move slightly to indicate the date setting
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mode.
4. Rotate the crown to adjust the date setting.
5. After making sure the b b Day Indicator is not moving, press B. This
will enter the month setting mode.
Nov Nov Dec Dec Jan Jan
The c c Second Hand will move to the currently selected month.
•
Oct Oct
Feb Feb
Sep Sep
6. Rotate the crown to adjust the month setting.
Mar Mar
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Aug Aug
Apr Apr
May May
Jul Jul
Jun Jun
Setting the month Setting the month

Taking Direction Readings

The Digital Compass Mode uses a direction sensor to take direction readings. After a direction reading,
the c Second Hand points towards magnetic north.
Hand Indicators
c Second Hand: Points to magnetic north.
v Mode Hand: Points to COMP.
Note
The z Hour Hand and x Minute Hand are stopped during a digital
compass reading.
30 30
To take a direction reading
1. Make sure the watch is in the Timekeeping Mode.
• For information about changing modes, see "Selecting a Mode"
(page E-24).
Important!
The more correctly you perform bidirectional calibration, the better the accuracy of the bearing sensor
readouts. 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.
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, loosen the crown and then pull it out.
The c c Second Hand and x x Minute Hand will move to 12 o'clock,
•
and the z z Hour Hand will move to 6 o'clock.
2. Press C to start calibration of Point 1.
After about seven seconds, the c c Second Hand will move to Y
•
(Yes) if Point 1 calibration was successful or to N (No) if it was not
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successful.
If the c c Second Hand is pointing at N (unsuccessful), press C to
•
perform Point 1 calibration again.
If the c c Second Hand is pointing at Y (successful), it will move to
•
6 o'clock after about two seconds.
1. In the Digital Compass Mode, loosen the crown and then pull it out.
The c c Second Hand and x x Minute Hand will move to 12 o'clock,
•
and the z z Hour Hand will move to 6 o'clock.
2. Press B. The z z Hour Hand will move to 12 o'clock.
3. Place the watch on a level surface, and position it so that its 12 o'clock
position points north (as measured with another compass).
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4. Press C to start calibration.
After about seven seconds, the c c Second Hand will move to Y (Yes)
•
if calibration was successful or to N (No) if it was not successful.
If the c c Second Hand is pointing at N (unsuccessful), press C to
•
perform calibration again.
5. After calibration is complete, push the crown back in and then lock it.
• This will start a magnetic north reading operation.
Press B to return to the Timekeeping Mode.
•
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