Set ting the watch func tions – Highgear Altis User Manual
Page 9
15
english
16
english
SET TING THE WATCH FUNC TIONS
CALIBRATING THE COMPASS
The ALTIS is equipped with a highly accurate digital magnetic compass with
reading in one-degree increments. The compass can be adjusted to compensate
for magnetic declination corresponding to the area of use.
The compass must be calibrated on a regular basis. The compass should be
calibrated any time it does not seem to be working properly. We recommend
calibrating the compass prior to any activity where optimal accuracy is desired,
such as a long back-country trip.
In Compass Mode:
1.
PRESS & HOLD
the
SET
key to enter the
CALIBRATION SEQUENCE
. ‘
ROTATE
CAL
’ will appear in the display.
2.
ROTATE THE WATCH CLOCKWISE
for two complete rotations of approxi-
mately 15 seconds per rotation.
NOTE:
For optimum accuracy, the compass must be held completely level
during the calibration process. We recommend placing the unit on top
of a drinking glass while performing the calibration, as this will make it
easier to keep the compass level.
3.
Advance
to
SET DECLINATION
by
PRESSING
the
MODE
key (see “Magnetic
Declination: next page).
NOTE:
If you do not know the Magnetic Declination for your area, leave
this setting at zero and exit the Calibration Sequence by Pressing the
Set key.
4.
ADJUST
first digit (blinking digit) of declination setting by
PRESSING
the
START/SPLIT
or
STOP
key.
5.
Advance to
SET
second digit of declination setting by
PRESSING
the
MODE
key.
ADJUST
by
PRESSING
the
START/SPLIT
or
STOP
keys.
6.
PRESS
the
SET
key to
EXIT THE CALIBRATION SEQUENCE
.
MAGNETIC DECLINATION
A magnetic compass points to the earth’s magnetic north pole. Depending on your
location, this may be different from True North. Adjusting the Magnetic Declination
allows you to compensate for this variation. Magnetic Declination for an area can be
found on topographical maps. Declination can change over time and distance. Make
sure the source for your declination settings is up to date. The following web sites are
good sources for finding local Magnetic Declination.
FOR U.S. DECLINATIONS:
http://www.ngdc.noaa.gov/seg/geomag/jsp/Declination.jsp
FOR CANADIAN DECLINATIONS:
http://gsc.nrcan.gc.ca/geomag/field/mdcalc_e.php
SET TING THE WATCH FUNC TIONS