Commission the system | 61
You can switch the autopilot to standby mode and take manual control of the boat at any
time during the seatrial by pressing the STBY/AUTO key.
The following seatrial calibration should be done:
- Compass calibration; used to automatically compensate for on-board magnetic
interference
- Compass offset adjustment, used to compensate for a fixed offset in the final
heading readout
- Wind calibration to compensate for a fixed mechanical offset of the Wind vane
- Boat speed calibration
- Transition HI/LO speed setting (the speed at which you want to change the set of
steering parameters)
- Automatic tuning of the steering parameters
- Setting the seastate filer
- Saiboat setup
Compass calibration
Before the compass calibration is started, make sure that there is enough open water
around the vessel to make a full turn.
The calibration should be done in calm sea conditions and with minimal wind to obtain
good results. Follow the on-screen instruction, and use about 60-90 seconds to make a
full circle.
MENU WIN
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During the calibration, the compass will measure the magnitude and direction of the local
magnetic field. Refer graphic on next page.
- If the local magnetic field is stronger than the earth’s magnetic field (the local field
is reading more than 100%), the compass calibration will fail
- If the local field is reading more than 30%, you should look for any interfering
magnetic objects and remove them, or you should move the compass to a different
location. The (local) field angle will guide you to the local interfering magnetic
object.
Calibration must be made on the compass that is active for the autopilot. If another
model compass from Simrad or another manufacturer is installed, refer to the instruction
for that compass regarding calibration.
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