7 sea trial – Simrad AP25 User Manual
Page 116
Simrad AP25 Autopilot
114
20221495F
Available units are: Wind Speed: kt or m/s
Sea temperature: °F or °C
Depth:
m
or
ft
Exit the Display units menu by pressing STBD button to proceed
to the Sea trial menu, or press STBY to return to normal AP25
operation.
4.7
Sea Trial
Caution !
The Sea Trial must always be performed in open waters at a
safe distance from other traffic.
The Sea-trial menu can only be accessed if the Dockside Settings
are completed and confirmed.
The seatrial settings are:
• Rudder zero adjust (To tell the AP25 the precise midships
position of the rudder)
• Minimum rudder
• Compass calibration (To automatically compensate for
onboard magnetic interference)
• Compass Offset (To compensate for a fixed offset (A-error) in
the final compass heading readout)
• Wind Offset (To compensate for a fixed mechanical offset of
the Wind vane)
• Wind Damping (To avoid flickering on the wind display)
• Depth offset (To compensate for the distance between the
depth transducer and the surface if required)
• Automatic tuning (A method of determining the steering
parameters)
• Transition speed (the speed at which you want a power boat to
change steering parameters)
• Init NAV (to set the response you prefer when steering onto a
track in NAV mode)
• Set thrust direction (optional, only if interfaced to a thruster)