Simrad AP20 Autopilot
98
20220505H
Seatrial
Set Rudder zero
00
Compass
calibration
Compass offset ---
Heading 345
Automatic tuning
No
Yes
Seatrial
Set Rudder zero
00
Compass
calibrating
Compass offset ---
Heading 345
Automatic tuning
No
Yes
1.
Begin turning the boat to starboard (can also turn to port).
2.
Start compass calibration by turning the course knob
clockwise. The display will flash “calibrating”.
3.
When the calibration is completed, (after having completed
approximately 1 1/4 turns), it will be confirmed by the display
reading “confirmed”.
If the compass is close to disturbing magnetic objects, the
compass calibration may fail, and the display will show:
Seatrial
Set Rudder zero
00
Compass
Failed
Compass offset ---
Heading 345
Automatic tuning
In that case move the compass to a better location and re-
calibrate.
After calibration, check the compass readout against a known
reference, other compass or leading line. If the reading is correct
(+/-3°) except for a fixed offset, proceed to next menu item by
pressing STBD [>] button.
Compass Offset
Note !
Offset correction is always performed after the calibration.
The compass OFFSET feature allows you to correct for a
constant compass heading offset that may be present as a result
of the compass being installed with a lubber line offset or a fixed
offset remains after the calibration procedure has been
completed. The value of compass offset is specific to the heading
sensor that is selected at the time the offset is entered.