Sea Trials; Calibrating The Compass; Aligning The Compass And The Rudder - NorthStar EXPLORER AP380 Installation And Operation Manual

5 Sea trials

Perform the sea trials:
After performing the dockside setup (see
section 4).
To check the operation of the Explorer AP380
system.

5-1 Calibrating the compass

Note
To exit the calibration at any time, press ESC.
If the boat is not turned as prompted or the compass is not working then calibration can not be
completed, the Explorer AP380 system displays an error. Press ESC, fix the problem and repeat the
calibration.
Local disturbances in magnetic field may affect the compass. Calibration must be preformed away
from large metal structures such as marinas, large ships etc.; this is the responsibility of the user.
Ensure that both sources are referencing the same north (true or magnetic). If your magnetic
compass has not been calibrated then you can use another source for heading. If using vessel's
compass then ensure that the deviation tables are applied to check the AP380 compass.
To calibrate the Compass unit go to Compass in the Setup > Calibrate menu. Follow the on-screen
instructions presented by the calibration wizard (See Explorer AP380 Operation Section).

5-2 Aligning the compass and the rudder

The compass or rudder can be aligned separately.
5-2-1 Aligning the compass (Align heading)
This aligns the Explorer AP380 system compass to display the correct heading.
The compass can be aligned either to a reference compass or to a GPS connected to the Explorer AP380
system. Ensure there is no cross-wind or current.
To align the Compass unit go to Align heading in the Setup > Calibrate menu. Follow the on-screen
instructions presented by the calibration wizard (See Explorer AP380 Operation Section).
5-2-2 Aligning the Rudder (Centre rudder)
This sets the rudder setting to sail a straight course. Ensure there is no cross wind or current.
To align the rudder go to Centre rudder in the Setup > Calibrate menu. Follow the on-screen instructions
presented by the calibration wizard (See Explorer AP380 Operation Section).
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Northstar Explorer AP380 System Installation and Operation Manual
For the sea trials, sail in an open area where there
are no other craft or obstructions. The sea should
be calm, the wind speed as low as possible and
there should be no currents.