Attachments; Operation; Basic Principles - Raymarine Autohelm 2000 User Manual

ATTACHMENT
is normally
it can be sited in clear wrnd on bolh
lacks. The windvane mounting masl is
clamped lo Ihe aller rail by Ihe Iwo 'U'
bolls provided (Fig.12). The
inlerconnecling cable should be broughl
head to be plugged into Ihe lop 01 Ihe
masl (Fig.13). The inlerconnecling cable
can lhen be run back and plugged inlo
Note The windvane head is supplied
with Ihe vane detached for ease of
packing. The vane is easily assembled lo
circlip provided (Fig.14). Care should be
laken lo ensure that the small circlip is
14

OPERATION

I I!, I .I

BASIC PRINCIPLES

lollowing descriplion 01 Ihe Aulohclrn
2000's principle of operalion will help you
lo make lull use 01 ils advanced lealures.
The powerful combirralion of a Iluxgale
compass and microprocessor conlrol
provides 'aulolock' course selection
wilh precise push-bullon course
adjuslmenl.
Deviation from course is continuously
monilored by a sensitive fluxgate
compass and correclive
applied lo relurn lhe vessel lo course.
The applied rudder is proporlional lo
course error al any lime and lhus when
neulralised.
When changes in vessel lrim occur
due lo varialions in wind pressure or
engine Itirollle selling lhe course can
only be rnainlained by Ihe applicalion
permanenl rudder oif-sel (standing helm)
lo reslore balance. II permanenl rudder
the vessel will bear on lo a new heading.
Under lhese circumslances
course is nol berng reslored and
vessel relurns lo Ihe origirral treading.
Aulomalic lrimming capability ensures
that Ihe originally sel course is held
irrespective of any changes in balance
passage.
The Aulohelm 2000's computer also
rudder is continuously monilors Ihe pallern of
applied rudder correclion and can
distinguish unnecessary repetilive
corrections caused by prlch and roll of
rnainlain Ihe selecled
The computer will automatically
, neglecl all unnecessary correclions
al minimum levels.
The high degree of control aulomalion
made possible by the micro compuler
operations.
IO
heading.
so
oplimised