SimradSH90
Generalinstallationrequirements...........................................................................31
Supplypower.............................................................................................31
UninterruptedPowerSupply(UPS)..............................................................31
Wiring........................................................................................................31
Compassdeviation......................................................................................32
Noisesources.............................................................................................32
Drydocking...............................................................................................32
Approvalbyclassicationsociety................................................................32
Supportinformation...............................................................................................32
INSTALLATIONPROCEDURE...........................................34
PREPARATIONS..............................................................36
Installationdrawings..............................................................................................37
Necessarytoolsandequipment..............................................................................37
Workerskills...........................................................................................................38
Determingthelocationofthehullunit..................................................................39
Foreandaftlocation...................................................................................39
Athwartshipslocation..................................................................................40
Importantconsiderationsrelatedtonoise......................................................40
Sonarroomrequirements.......................................................................................41
Watertightintegrity.....................................................................................41
Sizeandaccess...........................................................................................42
Heating......................................................................................................42
Insulation...................................................................................................42
Ventilation..................................................................................................42
Cableprotection.........................................................................................43
Electricalinstallationsandlights..................................................................43
Bilgepumpanddecking..............................................................................43
Liftingdevice.............................................................................................43
Communication..........................................................................................43
Sonarroomarrangementexample..........................................................................44
Sonarroomarrangementexample1–Topview............................................44
Sonarroomarrangementexample2–Sideview...........................................45
Hullunitorientationexample.......................................................................46
Acousticnoise........................................................................................................47
Contributingnoisefactors...........................................................................47
Selfnoise...................................................................................................48
Ambientnoise............................................................................................50
Fishinggearnoise.......................................................................................51
Electricalnoise...........................................................................................51
Reverberation.............................................................................................51
Somemeanstoreducethenoise...................................................................51
INSTALLINGTHESONARTRUNK.....................................54
4323776/D
