Simrad EK80 - Cables and Wiring Requirements; Compass Deviation Requirements; Noise Sources

394149/C
35
Cablesandwiringrequirements
CorrectwiringiscrucialfortheoperationalperformanceoftheEK80.
Allcablesrunningbetweensystemcabinetslocatedindifferentroomsand/orondifferent
decksmustbesupportedandprotectedalongtheirentirelengthsusingconduitsand/orcable
trays.Notethatthecablesmustnotbeinstalledinthevicinityofhigh-powersuppliesand
cables,antennacablesorotherpossiblesourcesofinterference.
Alltransducercablesmustberuninsteelconduits.
Formoredetailedinformationaboutcablesandwiring,refertothebasiccablerequirements.
Compassdeviationrequirements
EK80unitsthatareinstalledonthebridgemayhaveaneffectonthecompass.
Oncetheinstallationiscomplete,thevesselmustbeswungwiththeEK80inbothoperative
andinoperativemodes.
Theshipownerandcaptainareresponsibleforupdatingthecompassdeviationtable
accordinglywithregardtothevessel’snationalregistryandcorrespondingmaritime
authority.
Noisesources
TheoperationalperformanceoftheEK80Widebandscienticechosounderdependsonthe
noiseconditions.Itisessentialthatthenoisesignatureisaslowaspossible.
Thevessel’shull,rudder(s)andpropeller(s)mustbethoroughlyinspectedindrydock
priortoinstallation.
Roughnessbelowthewater-linedeformitiesintheshellplatingandprotrudingobstacles
cancreateunderwaternoise.Thesesourcesofturbulencemustbesmoothedorremoved
asbestaspossible.
Note
Itisespeciallyimportantthatthepropeller(s)arenotpittedordamaged.
SimradEK80