Setup and Calibration
4.4Compass Calibration
To ensure that inaccuracies caused by metallic and magnetic objects on the boat are kept to a minimum is necessary to calibrate the compass. A deviation caused by surrounding objects will be compensated for and the compass reading may be set to the correct heading.
Press and hold the 
button for 2 seconds to enter Setup
Press the 
button repeatedly to scroll to the “SETUP/COMPASS” Chapter
To Complete a deviation correction turn:
Press the 
button to advance to “DEV0” Page
Press the 
button to enter Compass Calibration Mode
Turn the vessel slowly keeping the speed below 4 knots and taking approximately 2 minutes to complete 3600 . Keep turning the vessel until the display changes to display a value (usually about 1.25 turns) Note: If the rate of turn of the vessel is too fast the instrument will display “TURN HIGH”. It is not necessary to abandon the turn at this stage but do lessen the rate of turn by reducing
speed or widening the turning circle.
Continue to align the heading
Steer the vessel on a known heading.
Note: only use the main steering compass as a known heading if you are certain it has been checked and compensated.
Press the 
button twice to display HDG / +000
Press the 
button to enter Edit Mode
Press the 
and 
buttons to change to the known value. The lower digits will display the offset entered.
Press the 
button to exit Edit Mode
Press and hold the 
button to exit Setup and return to normal operation.
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