
4331549/C
Sonarroomrequirements............................................................................................49
Environmentalrequirements.......................................................................................49
Requirementforwatertightintegrity...........................................................................51
Sizeandaccessrequirements......................................................................................51
Requirementsforinsulation,heatingandventilation..................................................52
Requirementsforelectricalinstallations,cablesandcommunication........................53
Requirementsforbilgepumpanddecking..................................................................54
Wheretoinstallthetransducer.............................................................................................55
Introductiontotransducerlocation..............................................................................55
Mountthetransducerdeep..........................................................................................55
Avoidprotrudingobjectsnearthetransducer..............................................................57
Keepthetransducerfarawayfromthepropellers......................................................57
Chooseatransducerpositionfarawayfromthebowthruster(s)................................58
Summaryandgeneralrecommendations....................................................................58
Acousticnoise.......................................................................................................................60
Introductiontotheacousticnoisechallenge...............................................................60
Contributingfactors.....................................................................................................61
Electricalselfnoise.....................................................................................................62
Ambientnoise..............................................................................................................63
Fishinggearnoise........................................................................................................63
Electricalselfnoise.....................................................................................................64
Somemeanstoreduceacousticnoise.........................................................................64
Vesselcoordinatesystem......................................................................................................66
INSTALLINGTHETRANSDUCER.................................................69
Transducerdescription..........................................................................................................70
Transducerinstallationprinciples.........................................................................................74
Inclinationangle..........................................................................................................75
Cableprotectionindropkeels.....................................................................................75
Placingthetransducerinthevesselcoordinatesystem...............................................77
Transducerinstallationsummary..........................................................................................81
Unpackingthetransducerfromitstransportcrate................................................................84
Installingthemountingring..................................................................................................87
Liftingthetransduceruptowardsitsmountinglocation......................................................89
Installingthetransducercables.............................................................................................91
Installingthetransducerintothemountingring...................................................................93
Paintingthetransducerface..................................................................................................95
Determiningthelocationandinstallationanglesofthetransducer......................................97
SimradMS70