Setting Up For True North Readings (Magnetic Declination Calibration) - Casio 5678 Operation Manual

3.
While keeping the watch horizontal, press
(C).
This starts calibration of the first point,
which causes [ WAIT] to appear on the
o
display. When calibration is successful,
indicators appear on the display in the
following sequence: [OK]
n
[ 2].
n p
4.
Rotate the watch 180 degrees, taking care
to be as exact as possible.
5.
Press (C).
This starts calibration of the second
●
point, which causes [ WAIT] to appear
p
on the display.
When calibration is successful, [OK]
●
appears on the display and the watch
returns to the Digital Compass screen.
6.
Push the crown back in to complete the
calibration operation.
Note
If you do not perform any operation for
●
about two minutes after pulling out the
crown, crown operations will
automatically become disabled. If that
happens, push the crown back in and
then pull it out again.
[ERR] will appear if calibration fails for
●
some reason. If this happens, restart
the above procedure from step 2.
Watch Operation Guide 5678
Setting Up for True North Readings
(Magnetic Declination Calibration)
If you want the watch to indicate true north
instead of magnetic north, you need to specify
your current location's magnetic declination
direction (east or west) and declination angle.
Magnetic North and True North
l
[Turn 180°]
The magnetic declination angle value can
●
be set in 1° (degree) units only. Use a value
that is closest to the angle you want to set.
Example: For an angle of 7.4°, set 7°.
Example: For an angle of 7°40' (7 degrees,
40 minutes), set 8°.
Note
Magnetic declination angles (east or
●
west) and angle degree values for
specific locations can be found on
geographic maps, mountain climbing
maps, and other maps that include
contour lines.
1.
Enter the Compass Mode.
Navigating Between Modes
l
2.
Pull out the crown.
This displays [
3.
Press (B).
This displays [DEC] and the current
magnetic declination setting.
1].
o
Crown
4.
Rotate the crown to select a magnetic
declination direction and angle settings as
desired.
Setting range: 90° west to 90° east
[OFF]: Magnetic north
[E]: East declination (Magnetic north is
east of true north.)
[W]: West declination (Magnetic north is
west of true north.)
To return the setting to [OFF], press (A)
●
and (C) at the same time.
Magnetic declination direction
Magnetic declination angle
5.
Push the crown back in to complete the
setting operation.
Note
If you do not perform any operation for
●
about two minutes after pulling out the
crown, crown operations will
automatically become disabled. If that
happens, push the crown back in and
then pull it out again.
Magnetic North and True North
●
There are actually two types of north:
magnetic north and true north.
Magnetic north: North indicated by the needle
of a compass
True north: Direction to the North Pole
As shown in the illustration below, magnetic
north and true north are not the same.
True north
Magnetic north
Earth
Note
The north indicated on commercially
●
available maps is normally true north.
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