Installation manual
SimradES70
Noisesources
Thevessel’shull,rudder(s)andpropeller(s)shouldbethoroughlyinspectedindrydock
priortoinstallation.Roughnessbelowthewater-linedeformitiesintheshellplatingand
protrudingobstaclescancreateunderwaternoise.Thesesourcesofturbulencemustbe
smoothedorremovedasbestaspossible.Itisespeciallyimportantthatthepropeller(s)
isnotpittedordamaged.
Drydocking
Makesurethatampleclearanceunderthesonartrunkand/orprotectionblisteris
providedwhendrydockingthevessel.Avoidlocatingsupportingblocksorstructuresin
thevicinityofthisequipment.
Note
Thelocationofthetransducerand/orprotectionblistermustbenotedonthevessel’ s
dockingplanforfuturereference.
Powerdownallhydroacousticsystems,andlabeleachsystemaccordinglytoprevent
accidentalpoweron.Removecircuitbreakersifnecessary.
Wiring
Allcablesrunningbetweensystemcabinetslocatedindifferentroomsand/orondifferent
decksmustbesupportedandprotectedalongtheirentirelengthsusingconduitsand/or
cabletrays.Notethatthecablesmustnotbeinstalledinthevicinityofhigh-power
suppliesandcables,antennacablesorotherpossiblesourcesofinterference.
Formoredetailedinformationaboutcablesandwiring,refertoBasiccablerequirements
onpage187.
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