B&G Zeus2 series, Installation Manual

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Software setup | Zeus2 Installation Manual
rudder from continuous hunting. A deadband will cause inaccurate steering.

Note: The rudder deadband setting is not available when the autopilot is confi gured for
Virtual Rudder Feedback.
Seatrials
A seatrial can only be performed if the dockside settings are completed and confi rmed.
The seatrial must always be performed in open waters at a safe distance from other traffi c.

Note: 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 off set adjustment, used to compensate for a fi xed off set in the fi nal heading
readout
• Wind vane off set to compensate for a wind vane that is not mounted facing in exactly the
same direction as the bow of the vessel (dead ahead)
• 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 fi lter
• ‘Saiboat Setup’ menu items
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.
During the calibration, the compass will measure the magnitude and direction of the local
magnetic fi eld.
• If the local magnetic fi eld is stronger than the earth’s magnetic fi eld (the local fi eld is reading
more than 100 %), the compass calibration will fail
• If the local fi eld is reading more than 30 %, you should look for any interfering magnetic
objects and remove them, or you should move the compass to a diff erent location. The
(local) fi eld angle will guide you to the local interfering magnetic object.

Note: Calibration must be made on the compass that is active for the autopilot. If the
compass is not possible to initiate calibration from the device list on the Zeus2, refer to the
compass’ own instructions regarding calibration.

Note: In certain areas and at high latitudes the local magnetic interference becomes more
signifi cant and heading errors exceeding ±3° may have to be accepted.
Compass mounting off set
After compass calibration, the diff erence (if any) between the compass lubber line and the
boat’s center line should be compensated for.
1. Find the bearing from the boat position to a visible object. Use a chart or a chart plotter
2. Steer the boat so that the center line of the boat is aligned with the bearing line pointing
towards the object
2. Change the off set parameter so that the bearing to the object and the compass readout
becomes equal. Refer graphic above

Note: Make sure that both the compass heading and the bearing to the object have the same
unit (°M or °T).