Installation manual
Howtoinstallthetransducer
Physicallocation
Theblisterisplacedononeofthesidesofthehull,andthe
distancefromthekeelisatradeoffbetweenaclosedistance
givingaturbulentowofwaterinanarrowpassage,andalarge
distancebringingthetransducerhigherupandalsomoreaffected
byvesselroll.Normallyadistanceofapproximately1misa
goodcompromise.
Observethehorizontalandverticaldistances(CandD)between
thekeelandthetransducerblister.Onamediumsizedvessel,the
horizontaldistance(C)shouldbeapproximately1meter.The
verticaldistance(D)mustingeneralbeassmallaspossible.This
isimportanttopreventthekeelfromshadowingthetransducer
beaminshallowwaters.
AKeel
BTransducer
blister
CHorizontal
distance
betweenkeel
andblister
DVertical
distance
betweenthe
blistersurface
andthekeel
Transducerinstallationinboxkeel
Vesselswithaboxkeelmayusethisfortransducerinstallation.
Theboxkeelisalreadythedeepestpartofthevessel.Ifthe
boxkeelistoonarrowtoaccommodatethetransducer,itcanbe
widened,eithersymmetricallyortoonesideonly.Inthelast
casetheinstallationcouldalsobedescribedasablistermerged
intothekeel.
Usemountingandclampingringswhenever
provided
Circulartransducersmaybeprovidedwithmountingand
clampingrings,orwithdrawingstoallowforlocalproduction
ofthese.Themountingringisweldedtotheholepreparedfor
thetransducer,whiletheclampingringtsaroundtheedgeof
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