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4. Use (A) (East) and (C) (West) to change
the magnetic declination direction and
angle.
●
Holding down (A) or (C) scrolls through
settings at high speed.
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 angle
Magnetic declination direction
5. Press (E) to complete the setting
operation.
●
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.
Earth
Magnetic north
True north
Note
●
The north indicated on commercially
available maps is normally true north.
Digital Compass Reading
Precautions
Location During Use
Taking readings near sources of strong
magnetism can cause reading error. Keep the
watch away from the following types of items.
Permanent magnets (magnetic accessories,
etc.), metal objects, high-voltage wires, aerial
wires, electrical household appliances (TVs,
computers, cellphones, etc.)
●
Note that correct direction readings are not
possible indoors, especially inside of
reinforced concrete structures.
●
Accurate direction readings are not
possible on electric trains, on boats, on
aircraft, etc.
Storage Location
Exposure of the watch to magnetism can
affect the accuracy of digital compass
readings. Keep the watch away from the types
of items below.
Permanent magnets (magnetic accessories,
etc.), metal objects, electrical household
appliances (TVs, computers, cellphones, etc.)
Altitude
Measurement
The watch takes altitude readings and
displays results based on air pressure
measurements taken by a built-in pressure
sensor.
Important!
●
The altitude readings displayed by the
watch are relative values that are
calculated based on barometric
pressure measured by the watch’s
pressure sensor. This means that
barometric pressure changes due to
weather can cause altitude readings
taken at the same location to be
different. Also note that the value
displayed by the watch may be
different from the actual elevation and/
or sea level elevation indicated for the
area where you are located. When
using the watch’s altimeter while
mountain climbing, it is recommended
that you regularly calibrate its readings
in accordance with local altitude
(elevation) indications.
l
Calibrating Altitude Readings
(Offset)
●
Check the information at the link below
to find out about how to minimize
differences between readings
produced by the watch, and values
provided by local altitude (elevation)
indications.
l
Calibrating Altitude Readings
(Offset)
l
Altitude Reading Precautions
Watch Operation Guide 3513
17
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