Compass Calibration - Tissot T-TOUCH EXPERT User Manual

T-TOUCH EXPERT
SETTING > COMPASS > COMPASS CALIBRATION
CAL
CAL
CAL
Compass
Calibration display
CAL
ok
a) Calibration successful –
data stored
N
N
GLOSSARY >
45°
W E
A
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Compass
In compass mode, your T-TOUCH 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 direc-
tion of the Magnetic North Pole (Nm). The angle
( ) 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 magnetic 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
10), the minutes hand of your T-TOUCH will
point to True North (Ng). If the magnetic declination is set to 0, your T-TOUCH
will point to Magnetic north (Nm). The magnetic declination values and dates
are indicated on topographic charts, or can be found using special software
available on the Internet.
For Switzerland: http://www-geol.unine.ch/geomagnetisme/Representation.htm
For the whole world: http://www.ngdc.noaa.gov/seg/geomag/magfi eld.shtml
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CAL run
Activate calibration mode
– glass deactivated
during calibration
b) Calibration failed
– repeat calibration
COMPASS
N
337 0
S
N
g
N
m
2 sec.
CAL run
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
CAL
ko
Azimuth
In azimuth mode, your T-TOUCH indicates the azimuth (heading) that you need
to turn to.
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 heading set.
12 o'clock represents the heading given by the azimuth 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 mass. In case of doubt, you can rec-
alibrate your compass.
Note 3
The rotating bezel, graduated from 0° to 359°, pro-
vides another method for determining the azimuth.
Characteristics of function
Accuracy: ± 8°
Resolution: 2°
11/13
of around 30° per second.
Total time: 20 seconds maximum
334 0
N
334 0
S
Back to compass display
Heading
Heading
N
315
0
Azimuth
S S
315 o
337 0
141_ EN
*
N
Azimuth
o
315