Heading Sensor Operation
48
Heading Sensor Operation
Calibrate the compass before using the Auto-
pilot or SetPoint functions.
Heading Sensor Calibration
Before and during calibration, take care to
keep the boat as steady and as level as pos-
sible. You may not use any AutoPilot function
(e.g. HeadingHold) before and during calibra-
tion.
The compass setup screen pictured above
shows whether Compass Calibration and
Heading Alignment (Set North Calibration)
currently is done or not done.
1.
To start calibration, go to compass setup
screen.
TIP:
You can go to the setup screen anytime by
pressing the following on-screen buttons.
Menu > BoatSet > Calibration
2.
First, ensure that the boat is level before
starting calibration to make sure pitch
and roll values are accurate. Next,
perform Compass Cal. according to on-
screen instructions until you see
“Calibration Status: Success”.
TIP:
You cannot start calibration in Autopilot
mode. Also, you must do Compass Cal.
before Set North calibration or Set North Cal-
ibration will fail.
3.
Point the bow leewards / towards drifting
direction to reduce inaccuracy caused by
the boat drifting. Perform Set North
Calibration according to the on-screen
instructions until you see “Calibration
Status: Success”.
Doing Compass Cal. again will erase the
previous Set North Calibration data (i.e
Heading Alignment: Not Done). So it is
necessary to do Set North Calibration
again after every Compass Cal.
4.
(Optional) You can use the Fine
Adjustment function to fine tune the
Heading Alignment. Using a far landmark
or a good compass, detemine the
heading of your boat. Adjust the heading
in 1 degree increments / decrements until
it matches your determined heading
value.
TIP:
Do not change the position of the Heading
Sensor after calibration. If you change its
position, do the calibration again.
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