Compass Calibration; Compass Offset - Simrad AP35 Instruction Manual

Simrad AP35 Autopilot

Compass calibration

This function will activate the automatic compass calibration procedure.
Note !
If an optional magnetic compass is installed or if a GYRO compass, or other
manufacturers fluxgate connected to a CI300X is installed, it is still required
to perform the automatic compass calibration in order to calibrate the
CI300X Interface/input signal.
Before you begin the compass calibration procedure, make sure you have
enough open water around you to make a full clockwise turn with the boat.
Let the boat turn at idle.
The calibration should be done in calm sea conditions and with minimal
wind to obtain good results.
1. Begin turning the boat to starboard.
2. Start compass calibration by turning the course selector clockwise.
3. When
If the compass is close to disturbing magnetic objects, the compass
calibration may fail, and the display will show:
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, use the COMPASS OFFSET setting to input a fixed correction
to the heading readout. Press STBD [>] button to proceed to next menu item.
Note !
If an optional NMEA compass from Simrad or other manufacturer is
installed, refer to the optional compass manual regarding calibration.

Compass Offset

The compass OFFSET feature allows you to correct for a constant compass
heading offset, that may be present as a result of the RFC35 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. (For multiple
heading sensor offset procedure, choose Compass in User Setup. Refer to
User Set-up Menu, page 27. Then re-enter Installation, Compass Offset, and
set the required offset for chosen compass, or refer to separate CI300X
manual).
84
INSTALLATION
RFC COMP
calibration?
the calibration
approximately 1 1/4 turns), it will be confirmed in the display.
INSTALLATION
RFC COMP
calibrating
is completed, (after
INSTALLATION
Calibration
failed
INSTALLATION
Calibration
confirmed
having completed
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