SUUNTO LUMI - Manual (Page 36)

7.2.1 Setting declination value
Declination is the angle between the true and magnetic North, and this function
allows you to correct that difference. An interesting fact about declination is
that the location of the magnetic North changes slightly every year. You can
find the declination value from a map. For the most up-to-date value, do a
search from the Internet (the National Geophysical Data Center in the United
States supplies very accurate information).
You can set the declination value in MENU . To enter MENU , press [Mode] for 2
seconds - the menu icon in the upper right corner will blink twice.
In
MENU , press [Down Light] to reach and [Mode] to enter COMPASS . You can
set the declination to off or choose between East ( E ) or West ( W ) by pressing
[Up] or [Down Light] and then [Mode]. Then set the declination value of your
current location by pressing [Up] or [Down Light].
7.3 Using compass
The moving arrow segment on the outer rim of the display indicates the
direction of North. Your own heading is at 12 o’clock and its cardinal point is
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