Installation manual

Table Of Contents
SimradSH90
Unitinthewheelhouse,andasecondEthernetcableisusedto
controlthehullunit.ThethirdEthernetcableconnectstothe
PowerSupplyUnit.
Thetransducercablesfromthehullunitarepluggedintotheside
walloftheTransceiverUnitcabinetusingaspecialplug.
TheTransceiverUnitismountedonthebulkheadusingpowerful
shockabsorbers.Theconnectorsforpowerandinterfaceare
locatedatthebottomofthecabinet.
PowerSupplyUnit
Adedicatedpowersupplycabinetisusedtoprovidethe
TransceiverUnitwithoperationalpower.
WARNING
Thepowersupplycabinetcontainshighvoltages.
DonotopenthecabinetdoorwhiletheSH90is
switchedon.
HullUnit
TheHullUnitisdesignedtolowerthetransducer1.0meters
belowtheship’shull.
Thetransducercanalsobeloweredtoanyselectedmiddle
position.Incaseofvoltagefailure,thetransducercanberaised
orloweredmanuallybymeansofahandcrank.
Thesensorfortheelectronicstabilisationofthesonarbeams
ishousedintheMotorControlUnit,whichismountedonthe
HullUnit.
WARNING
Ifthetransducerhitslargerobjectsorbottom,the
transducershaftmaybebent,or-inworstcase-
itcanbebrokenoff.Abrokentransducershaftwill
causewaterleakagethroughthetopoftheshaft.
Insuchcases,d
o n o t raisethetransducershaftto
itsupperposition.
Topreventseriousdamage,youmusthaveawater
pumpandawarningsysteminthesonarroom.
Transducer
ThecylindricalTransducerallowsthesonarbeamtogivefull
360degreescoverageofthewatervolumefrom+10anddown
to-60degrees.
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