Raymarine autopilot - Manual (Page 77)

64 ST6001+ Autopilot Control Unit - Owner’s Handbook
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Calibrating the compass
Note: This section does not apply if you have connected an NMEA
compass to your autopilot system. Refer to the handbook supplied
with the NMEA compass for information about calibration.
Depending on your boat type, deviating magnetic fields can cause
significant compass errors. The correction procedure reduces these
errors to a few degrees, so you MUST perform this procedure as the
first item in your initial seatrial. The autopilot will then automatically
correct the fluxgate compass.
CAUTION:
If you fail to complete the deviation correction, your autopilot’s
performance will be impaired on some compass headings.
The deviation correction procedure (swinging the compass) involves
turning your boat in slow circles so the autopilot can determine the
deviation and calculate any correction required. You must carry out
this procedure in calm conditions and preferably on flat water.
Automatic compass deviation correction
1. With the pilot in Standby mode, enter Seatrial Calibration as
follows (see the following illustration):
•
press and hold the standby key for two seconds to enter
Calibration mode
• when you see the DISPLAY CAL screen, press the disp key until
you see the SEATRIAL CAL screen
• press the auto key to enter Seatrial Calibration
Note: If you cannot access SeaTrial Calibration, you need to turn off
the calibration lock in Dealer Setup (see page 88).
2. You should see the SWING COMPASS screen when you first enter
Seatrial Calibration. (If not, use the disp key to page through the
Seatrial Calibration items until you see SWING COMPASS)
3. When you are ready to start, press the +1 key to select
SWING COMPASS On. You will then see the TURN BOAT screen.