B&G h3000, Pilot'S Handbook Manual

Page: 37 / 120

H3000 Pilot Handbook
37
HB-3001-03
The rate of change of heading must not fall below 0.2 of a degree per second during
the 360° turn, i.e. the turn must not take longer than 12 minutes.
The rate of change in heading is reasonably constant.
The compass is installed in a location a safe distance from magnetic interference
such as iron keels, engines, loudspeakers etc.
Consideration should also be given to electrical cables which may carry high
currents (e.g. large motors).
The compass is installed in a location as close to the centreline of the boat as
possible. Avoid areas such as the fore peak and the sides of the hull where the
effects of pitch and roll are at their greatest.
On steel hulled vessels, the compass will need to be installed above decks away
from the effects of the hull.
Halcyon 2000 Compass Calibration
Check for any magnetic devices placed near the compass, especially ones that are
out of their normal places.
On a calm day select a stretch of open water with little traffic (so you will not have
to take avoiding action which would affect the calibration). The flatter the water
and the less the wind the easier it will be to meet the conditions for calibration.
Check for and avoid sailing close to any large steel structures nearby, that may
cause additional, erratic deviations.
Now select:-
SETUP

COMMISSION

START COMPASS SWING

The display will now show the degrees of turn completed so far. When the full 360
deg turn has completed within the limits described earlier, the display should say
“PASS” to indicate a successful swing.