Simrad ST90 - Page 301

442703/B
299
Illustration:
ABow
BThisisthealignmentangle.
C0°transducermark
Foraccuratelocationofthe
transducer,youneedthedetailed
vesseldrawings.Youalsoneedthe
alignmentanglethatwasrecorded
whenthehullunitwasinstalled.
Context
Asageneralrecommendation,the
hullunitshallbeorientedwiththe
hoist/lowermotorpointingaft
.If
thisorientationmakesitdifcult
toaccesstheMotorControlUnit,
thehullunitmayberotatedduring
itsinstallationtothemostsuitable
direction.Independentofthehull
unitorientation,thealignmentis
alwaysdenedas:
Theanglemeasuredfromthebowtothe0°transducermark.
The0°transducermarkislocatedoutermostonthemountingange,anditismarkedas
ared"0".Dependingonthetransducermounting,itcanbelocatedatanyangleonthe
mountingange,notnecessarilyasshownintheillustration.
OntheTransducerpage,denethisangleasrotationaroundZ.
•Ifthe0°transducermarkpointstothestarboard(right)sideofthevessel’scentreline,
insertthealignmentasanumberbetween0and+180degrees.
•Ifthe0°transducermarkpointstotheport(left)sideofthevessel’scentreline(as
shownintheillustration),insertthealignmentasanumberbetween0and–180
degrees.
Settingtowork