Raymarine Dragonfly-4 - Selecting a Location for the Transducer

3.10Selectingalocationforthe
transducer
Thisproductissuppliedwithatransommount
transducer.Theguidelinesbelowshouldbefollowed
whenselectingalocationforthetransducer.
Note:Thetransducerisnotsuitableformounting
onvesselswherethetransomisaftofthe
propeller(s).
Forbestperformancethetransducermustbe
installedinalocationwiththeleastturbulenceand
aeration.Themosteffectivewaytodeterminethis
isbycheckingthewaterowaroundthetransom
whilstunderway.
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•Mountclosetothekeel(centerline),inaposition
wherethetransducerelementwillbefully
submergedwhenthevesselisplaningandturning.
•Mountasuitabledistancefromthepropeller(s)to
avoidwake.
•Forclockwiserotatingpropellers,mount
thetransduceronthestarboardside,for
counter-clockwise,mountontheportside.
•Onatwinenginevesselmountthetransducer
betweentheengines.
•Turbulencecanbecausedbyanumberofother
factorssuchassteps(1),ribs(2),rowsofrivets
(3)andstrakes(4).Theturbulenceappearsaft
oftheselocations.
1
2
4
3
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•Airtrappedunderthefrontofthevesselcantravel
underthehullandappearasaerationaft.
•Ifinstallingonthestepofasteppedtransom,
allowsufcientroomabovethetransducerfor
transducerkickup.
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Note:Optimumtransducerlocationwill
varydependingonvesseltype.Optimum
transducerheightandangleshouldbe
obtainedbytestingthetransducerwiththe
vesselinthewater.
Productdimensions–CPT-DVandCPT-DVS
Thetransducer’sdimensionsincludingthetransom
mountingbracketareshownbelow.
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65 mm (2.6 in.)228 mm (8.97 in.)
111.2 mm (4.4 in.)
•TheCPT-DVcablelengthis4m(13.1ft.)
•TheCPT-DVScablelengthis6m(19.7ft.)
Planningtheinstallation
25