Installation manual

Howtoinstallthetransducer
mountit,thehullplatingandtheputtyaroundthetransduceris
asevenandsmoothaspossible.Obstructionsonthesesurfaces
willcreateproblemswithturbulentow.
Useahorizontalsupportbaronlarge
transducers
Duetoitsphysicalsize,the38-7transducermustbettedwith
ahorizontalsupportbar.Thepurposeofthissupportbaristo
protectthetransducerfromdamageintheeventofslamming.
Thishappensifthevesselhullclimbsoutofthewaterinheavy
seas.Theforceofthewaterwhenthehullfallsdownmaypush
thetransducerupandcausedamagetoitsmounting.Thesupport
barcanbesecuredtothemountingringusingthreadedrods.See
Supportbar[206574]onpage39.
[2]
Example:Boxkeelinstallation
Thegurebelowillustratesasymmetricalboxkeelinstallation.
Figure6Boxkeelinstallation
ABoxkeel
BU-shaped
support
bar(only
recommended
onlarge
transducers)
CStufngtube
DCableinsteel
conduit
ECableservice
loop
(CD1701
1A)
A
B
D
C
E
Transducerushmountedinasteeltank
Flushmountingisusedonverylargevesselswithahullsodeep
thatnoairbubblesarefoundbelowthehull,andonvessels
operatinginshallowharboursorwaters,whereaprotruding
blistercannotbeaccepted.
2.Slammingistheimpactofthebottomstructureofashipontotheseasurface.Itismainlyobserved
whilesailinginwaves,whenthebowraisesfromthewaterandsubsequentlyimpactsonit.Slamming
inducesextremelyhighloadstoshipstructuresandistakenunderconsiderationwhendesigningships.
(Wikipedia)
130003/D
15