Setup > Comms; Setup > Calibrate; Setup > Simulate - NorthStar EXPLORER AP380 Installation And Operation Manual

6-7 Setup > Comms
Use this feature when the AP380 is connected to
other Northstar instruments through NavBus or
any compatible NMEA instrument.
NMEA mode
Select NMEA port mode.
Input – NMEA port can receive NMEA data
Slow – NMEA port outputs heading and
rudder angle once per second
Fast – NMEA port outputs heading data ten
times per second
NavBus group
Use this when a group of Northstar
instruments are connected together using
NavBus, to specify a group of instruments for
backlighting, if required. Then, if the backlight
setting on one instrument in the group is
adjusted, the other instruments change
automatically. Otherwise, select 0.
6-8 Setup > Calibrate
The calibrate wizard screens are used during the
initial AP380 installation stage or if any previously
installed AP380 transducers have changed or
moved.
It is vital to the performance of the AP380 that the
transducers are installed in the best location and
carefully calibrated.
Compass
Use this calibration wizard to calibrate the
compass.
Follow the on-screen instructions:
• Slowly turn boat 2.5 times, observing the
turn rate indicator
• Align heading – press
current heading
• Accept calibration
• Calibration complete
60
and dial in the
Northstar Explorer AP380 System Installation and Operation Manual
Rudder
Use this calibration wizard to calibrate the
rudder.
Follow the on-screen instructions:
• Centre the rudder
• Turn rudder to Maximum Port
• Turn rudder to Maximum Starboard
• Set angle – press
current rudder angle
• Centre the rudder
• Stand clear of the rudder and linkages so
the AP380 can test the limits.
• Testing limits – press
abort the calibration
• Accept calibration
• Calibration complete
Align heading
Use to align the compass to the actual boat
heading. If a compass calibration has recently
been performed, it is not necessary to align the
heading again.
Use the manual helm to sail a straight course
and ensure the boat heading does not change
during this procedure. Use an accurate reference
compass or external GPS to find the actual boat
heading. If you are using an external GPS, sail
as fast as convenient to ensure the heading is
accurate.
Enter the actual course heading.
Minimum = 0°; maximum = 359° (degrees)
Centre Rudder
Use to set the rudder centre position. If a rudder
calibration has recently been performed, it is
not necessary to set the rudder centre position
again. Ensure the rudder is in the centre position
and that there is no cross-wind or tidal current
affecting the rudder.
Select OK and press
centreed.
6-9 Setup > Simulate
Turn simulate mode on and off
(see section 3-14).
and dial in the
at any time to
when the rudder is