Aqua Lung i450T, Owner'S Manual

Page: 71 / 86

Doc. 12-7834-r04 (2/16/16)
71
COMPASS MODE
© Aqua Lung International, Inc. (2015)
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.
SELECT
ADV
.
LIGHT
MODE
CALIBRATE LEAD-IN
to start
calibrating
SELECT
ADV
.
LIGHT
MODE
CALIBRATION IN PROGRESS
Keep rotating the
watch face up
until the circle diagram
is completely drawn
and a Passed or Failed
message is displayed.
CAL PASSED
3 second
countdown
to completion
CAL FAILED
3 second
countdown
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.
SELECT
ADV
.
LIGHT
MODE
to move
(
■)
up
to move
( ■) down
to select
option
SET DECLINATION MENU
SELECT
ADV
.
LIGHT
MODE
to save
setting
SET DECLINATION
(showing Declination East)
flashing
(0 - 45°)
to increase
value
to decrease
value