Raymarine E70085 Dragonfly - Selecting Transducer Location

4.1Selectingalocationforthe
transducer
Thisproductissuppliedwithatransommounttransducer.The
guidelinesbelowshouldbefollowedwhenselectingalocation
forthetransducer.
Note:Thetransducerisnotsuitableformountingonvessels
wherethetransomisaftofthepropeller(s).
Forbestperformancethetransducermustbeinstalledina
locationwiththeleastturbulenceandaeration.Themost
effectivewaytodeterminethisisbycheckingthewaterow
aroundthetransomwhilstunderway.
•Thetransducershouldbemountedclosetothekeel
(centreline)ofthevessel,sothatthetransducerremainsfully
submergedwhenthevesselisturning.
•Thetransducermustbemountedasuitabledistancefrom
thepropeller(s)toavoidwake.
•Forclockwiserotatingpropellersthetransducershouldbe
mountedonthestarboardside,foranti-clockwiserotating
propellersthetransducershouldbemountedontheportside.
D12 64 0-1
•Onatwinenginevesselthetransducershouldbemounted
betweentheengines.
D12 64 1-1
•Turbulencecanalsobecausedbyanumberofotherfactors
suchassteps,ribs,strakes,androwsofrivets.Theturbulence
appearsaftoftheselocations.
1
2
4
3
D12 63 6-1
1
Step
2Rib
3
Rowofrivets
4
Strake
•Airtrappedunderthefrontofthevesselcantravelunderthe
hullandappearasaerationaft.
•Ifinstallingonthestepofasteppedtransom,allowsufcient
roomabovethetransducerfortransducerkick-up.
D12 64 4-1
Note:Optimumtransducerlocationwillvarydepending
onvesseltype.Optimumtransducerheightandangle
shouldbeobtainedbytestingthetransducerwiththe
vesselinthewaterbeforelockingthetransducer’s
position.
Transducerdimensions
Thetransducer’sdimensionsincludingthemountingbracket
areshownbelow.
A
B
D12 63 8-1
A
202.6mm(8in)
B
117.4mm(4.6in)
20
Dragony