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T-TOUCH SOLAR E84
COMPASS >
CALIBRATION
Compass calibration
display
Activate
calibration
mode – glass deactivated
during calibration
b) Calibration failed – repeat calibration
Back to
compass
display
Turn the watch more than a complete revolution on
a horizontal surface (e.g. a table) in an environment
free from magnetic interference, at a rotation speed
of around 30° per second.
Total time: 20 seconds maximum
a) Calibration successful – data stored
2 sec.
Compass
In compass mode, your T-TOUCH SOLAR E84
indicates the True North Pole, factoring in
magnetic declination.
Compass explanations
The vertical lines (meridians) on the Earth converge at the True North Pole
(Ng), indicating its direction. The hand of a conventional compass indicates
the direction of the Magnetic North Pole (Nm).
The angle (
α
) between these two directions
Ng and Nm is known as magnetic declination.
The magnetic declination value depends on your
location on Earth. Furthermore, the Magnetic
North Pole is constantly moving. So the magnet-
ic declination value also depends on the date.
If the correct magnetic declination value (for
the location and date) is set (see the setting
procedure on page 15), the minute hand of your
T-TOUCH SOLAR E84 will point to True North
(Ng). If the magnetic declination is set to 0, your T-TOUCH SOLAR E84 will
point to Magnetic north (Nm). The magnetic declination values and dates are
indicated on topographic charts, or can be found using special software avail-
able on the Internet.
For the whole world:http://www.ngdc.noaa.gov/
Azimuth
In azimuth mode, your T-TOUCH indicates the azimuth heading you should take.
Azimuth explanations
The azimuth is the horizontal angle
between the direction of an object
and True North. The azimuth is
measured from north in degrees
from 0° to 359° (e.g.: East = 90°).
In azimuth mode, the T-TOUCH
emits a beep and visual signal
when the 6-12 o'clock axis of the
watch is aligned with the azimuth
heading set.
12 o'clock represents the azimuth heading relative to True North.
Note 1
For a correct indication of North, it is extremely important to hold the watch as
level as possible.
Note 2
The compass function, like any other compass,
should not be used near a metal or magnetic
object. In case of doubt, you can recalibrate your
compass.
Characteristics of function
Accuracy:
± 8°
Resolution: 2°
COMPASS >
GLOSSARY
Azimuth
315
o
Heading
Azimuth
315
o
