Calibrate; Set Declin (Declination) - Aqua Lung i450T Owner's Manual

CALIBRATE

You may need to calibrate the compass from time to time to compensate for any magnetic interference (new
batteries, new dive location, or other surrounding changes). Sometimes the i450T will prompt for a calibration,
after a battery change for example. The Calibration selection in the Compass Main Menu allows you to manually
initiate a calibration.
CALIBRATE LEAD-IN
CAL PASSED
3 second
countdown
to completion

SET DECLIN (DECLINATION)

Magnetic declination or variation measures the angle between the Earth's magnetic north and true north. The
declination value for any region can be found on current geographical charts. By correcting for declination, you
can achieve a more accurate compass reading.
NOTE: Magnetic north changes over time; so use only current geographical charts to obtain declina-
tion value for any geographical region.
SET DECLINATION MENU
to move
(■) up
to move
(■) down
© Aqua Lung International, Inc. (2015)
CALIBRATION IN PROGRESS
to start
calibrating
3 second
countdown
to select
to decrease
option
value
to increase
value
71
CAL FAILED
SET DECLINATION
(showing Declination East)
flashing
(0 - 45°)
Doc. 12-7834-r04 (2/16/16)
COMPASS MODE
Keep rotating the
watch face up
until the circle diagram
is completely drawn
and a Passed or Failed
message is displayed.
to save
setting