E-30
To take a direction reading
1. Point the 12 o’clock position of the watch in the
direction you want to read.
2. In the Timekeeping Mode or Thermometer Mode, keep
the watch horizontal as you press
B
.
•
COMPASS
will appear on the digital display and
then direction reading will start.
•
After the watch completes a reading, the second
hand will indicate north. The direction indicator
will show a literal indicator (abbreviation) for the
direction where 12 o’clock of the watch is pointed. A
direction angle will also be displayed.
Starting a digital compass direction reading causes
consecutive readings to be taken each second for
20 seconds. After a series of consecutive readings
is complete,
- - -
appears in place of the literal
direction indicator on the display.
•
See “Digital Compass Readings” (page E-31) for
information about what appears on the digital display.
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-31
3. Press
C
to return to the Timekeeping Mode.
•
If you do not perform any button operation for one or two minutes, the watch
will automatically return to the Timekeeping Mode.
Digital Compass Readings
•
The following table shows the meanings of each of the direction abbreviations that appear
on the digital 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
E-32
Example: Determining your current position and your
objective on a map
Having an idea of your current location and the direction
to your destination is important when mountain climbing or
hiking. In this example, we show you how to plot directions
on a map and determine your current location using
direction measurements taken by the watch.
1. In the Timekeeping Mode or Thermometer Mode, press
B
.
N
N
North indicated
on the map
North indicated by
north pointer
N
N
North indicated
on the map
North indicated by
north pointer
E-33
2. Rotate the map (without moving the watch) until north on the map is aligned with
north as indicated by the watch’s second hand.
Depending on how the watch is set up, it may be indicating magnetic north or true
north.
Magnetic north: Indicates north in accordance with the Earth’s magnetic fi eld.
True north: Indicates the direction to the North Pole.
•
For information about setting the watch up to indicate magnetic north or true
north, see “Magnetic Declination Correction” (page E-37).
3. Determine your location and destination by checking the map and the geographic
contours around you.
E-34
Calibrating Direction Readings
You can use the information in this section to calibrate direction readings, which helps
to improve digital compass accuracy.
Direction Reading Calibration Methods
Important!
•
To ensure correct direction readings by this watch, be sure to perform bidirectional
calibration before using it. The watch may produce incorrect direction readings if
you do not perform bidirectional calibration.
•
Keep the watch away from audio speakers, magnetic necklace, cell phone, and
other devices that generate strong magnetism. Exposure to strong magnetism can
magnetize the watch and cause incorrect direction readings. If incorrect readings
continue even after you perform bidirectional calibration, it could mean that your
watch has been magnetized. If this happens, contact your original retailer or an
authorized CASIO Service Center.
E-35
Bidirectional Calibration
•
Use this method when using the watch to take readings in an area where magnetic
force is present, or if you notice that the readings produced by the watch are
different from another compass.
Magnetic Declination Calibration
•
You can use this method to specify a magnetic declination value, which sets the
digital compass up to take magnetic north or true north 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.
E-36
To perform bidirectional calibration
1. In the Digital Compass Mode, hold down
A
for two
seconds.
•
This will cause the bidirectional calibration screen to
appear on the digital display.
•
The second hand will move to 12 o’clock. This
causes an arrow ( ) symbol to fl ash on the left
side of the digital display and
-1-
to be displayed to
indicate that the watch is ready for calibration of the
fi rst direction.
2. Place the watch on a level surface facing any direction
you want, and press
B
to calibrate the fi rst direction.
•
- - -
will remain on the digital display while
calibration is in progress.
OK
will appear when
fi rst direction calibration is complete. About one
second after that, the fl ashing arrow will change to
point downwards ( ) and
-2-
will be displayed. This
means that the watch is ready for calibration of the
second direction.
E-37
3. Rotate the watch 180 degrees.
4. Press
B
again to calibrate the second direction.
•
- - -
will remain on the digital display while
calibration is in progress.
OK
will appear when
second direction calibration is complete.
•
If
ERR
appears on the digital display, press
B
again to restart calibration.
•
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°.
E-38
To perform magnetic declination correction
1. In the Digital Compass Mode, hold down
A
for two
seconds.
•
This will cause the bidirectional calibration screen
to appear on the digital display.
2. Press
C
to display the magnetic declination setting
screen (
DEC
).
3. Use
D
(East) and
B
(West) to change the settings.
•
The following explains magnetic declination angle
direction settings.
OFF
: No magnetic declination correction performed.
The northerly magnetic declination setting
(
DEC
) will be 0°.
E
: When magnetic north is to the east (east
declination)
W
: When magnetic north is to the west (west
declination)
Magnetic declination
angle direction value
(E, W, or OFF)
Magnetic declination
angle value
Magnetic declination
angle direction value
(E, W, or OFF)
Magnetic declination
angle value
E-39
•
You can select a value within the range of W 90° to E 90° with these settings.
•
You can turn off (
OFF
) magnetic declination correction by pressing
D
and
B
at the same time.
•
The illustration, for example, shows the value you should input and the direction
setting you should select when the map shows a magnetic declination of 7°
West.
4. When the setting is the way you want, press
A
to exit the setting screen.
Operation Guide 5269