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Simrad ES38-10 - REV B Installation Manual Download Page 26

Simrad ES38-10

Example

The transducer shown in the figure below is mounted inside the
hull. The tank is filled with oil.

(CD017012C)

B

A

C

D

E

F

G

H

(A) = Steel tank

(B) = Oil

(C) = Hull plating

(D) = Cable service loop

(E) = Stuffing tube

(F) = Cable in steel conduit

(G) = Hole for oil filling

(H) = Air outlet

24

305176/A

Summary of Contents for ES38-10 - REV B

Page 1: ...Installation manual Simrad ES38 10 38 kHz split beam transducer M A X I M I Z I N G Y O U R P E R F O R M A N C E A T S E A www SIMRAD com...

Page 2: ......

Page 3: ...to install the Simrad ES38 10 Split beam transducer The information must be regarded as general guidelines and recommendations only The installation shipyard must design and manufacture installation...

Page 4: ...r any errors or omissions Warning The equipment to which this manual applies must only be used for the purpose for which it was designed Improper use or maintenance may cause damage to the equipment a...

Page 5: ...1 Box keel 17 Flush mounting in a steel tank 19 Acoustic window 21 Inside the hull 23 Drop keel 25 Retractable transducer 26 CABLE GLANDS 27 Order numbers 27 Cable gland for steel hulls 28 Cable gland...

Page 6: ...Simrad ES38 10 4 305176 A...

Page 7: ...he proper authorities Transducer order number KSV 202714 A cable gland kit for steel hull is included with the delivery Other cable glands must be ordered separately Transducer installation The next c...

Page 8: ...nsducers Cavitation is the formation of small bubbles in the water due to the resulting local pressure becoming negative during parts of the acoustic pressure cycles The cavitation threshold increases...

Page 9: ...bubbles in the water Furthermore air bubbles in the sea water are pressed down below the hull and mixed into the boundary layer The boundary layer is thin underneath the forward part of the vessel an...

Page 10: ...e when the vessel is in normal trim as this will provide the most accurate echo information However it is also very important that the water flow over the transducer face is laminar In order to ensure...

Page 11: ...the hull length at water line L If the vessel hull has a bulbous bow this may well be a good transducer location but also here must be taken into consideration the flow pattern of the aerated water O...

Page 12: ...nsducer These are the recommended methods to mount a circular transducer Topics Transducer blister on page 11 Box keel on page 17 Flush mounting in a steel tank on page 19 Acoustic window on page 21 I...

Page 13: ...mping ring fits around the edge of the transducer body Bolts through the clamping ring into the mounting ring will then secure the transducer between them Note that several transducers use direction g...

Page 14: ...upport bar E is used to support the transducer The purpose of this support is to prevent the transducer from being pushed up into the blister in heavy seas CD017010A H E E K G B D A C F J I A Streamli...

Page 15: ...rinciples as for a large transducer apply E E A C G D F B CD017010B A Streamlined blister B Mounting ring C Clamping ring D Guide E Air outlet F Forward G Transducer cable Note that the transducer cab...

Page 16: ...hout a clamping ring which makes it necessary to use a different mounting ring design A B C H F E E G D I CD017010E A Streamlined blister B Mounting ring C Bolt D Self locking threads E Air outlet F F...

Page 17: ...o the mounting ring using threaded rods The transducer cable penetrates the hull in a stuffing tube Leave an adequate loop of the cable behind the transducer for easy mounting or removal of the transd...

Page 18: ...nce X should be approximately 1 meter The vertical distance Y must in general be as small as possible This is important to prevent the keel from shadowing the transducer beam in shallow waters CD17010...

Page 19: ...is welded to the hole in the box keel while the clamping ring fits around the edge of the transducer body Bolts through the clamping ring into the mounting ring will then secure the transducer between...

Page 20: ...e figure below illustrates a symmetrical box keel installation CD17011A A B D C E A Box keel B U shaped support bar only required on large transducers C Stuffing tube D Cable in steel conduit E Cable...

Page 21: ...ansducer between them Note that several transducers use direction guides to allow correct mounting Smooth surface Mounting screws or bolts must not be extruding from the hull plating Ensure that the s...

Page 22: ...ansducer mounting in a steel tank is shown in the figure below CD17012A B A G C D E F A Steel tank B Water C Drainage hole D Cable service loop E Steel tube for air outlet F Stuffing tube G Cable in s...

Page 23: ...the clamping ring fits around the edge of the transducer body Bolts through the clamping ring into the mounting ring will then secure the transducer between them Note that several transducers use dire...

Page 24: ...mounted inside the tank behind a strong acoustic window which could be made of polycarbonate The tank is filled with oil CD017012B B A C G D E F A Steel tank B Oil C Acoustic window D Cable service lo...

Page 25: ...or advice In addition to the loss the beam pattern is degraded because a larger area of the hull is set into vibrations Mounting and clamping rings Circular transducers may be provided with mounting a...

Page 26: ...in the figure below is mounted inside the hull The tank is filled with oil CD017012C B A C D E F G H A Steel tank B Oil C Hull plating D Cable service loop E Stuffing tube F Cable in steel conduit G H...

Page 27: ...ers Such instrument keels have been built mainly on research vessels often protruding as far as three meters below the hull At that depth the water is free of air bubbles up to very high sea states Th...

Page 28: ...ls with a hull where it is difficult or impossible to install a blister it may still be worth while The principles of a hull unit with a retractable transducer is shown below Vessels without a keel an...

Page 29: ...inding suitable areas of the hull for mounting transducer cable glands due to existing water tanks concrete ballast or other obstacles A possible solution in such cases is to run the transducer cables...

Page 30: ...re that you do not damage the transducer cable by tightening the packing nipple too hard F Cable to the echo sounder or a junction box The cable gland kit includes all of the necessary parts needed to...

Page 31: ...Hole diameter 28 mm E Steel conduit F Cable to the echo sounder or a junction box The cable gland kit includes all of the necessary parts needed to install the unit except screws Simrad recommends th...

Page 32: ...Plastic disk D Rubber gasket E Stuffing tube F Backing nut bronze G Backing washer plastic H O ring 42 5 x 3 0 N I O ring 39 5 x 3 0 N J Cable to the echo sounder or a junction box Stuffing tube hole...

Page 33: ...the wires together with only electrical tape for insulation as this will result in electrical noise and reduced operational performance To splice the cable use a metal junction box The chassis of the...

Page 34: ...must be unbroken and watertight from the transducer to above the water line From there the cable can be pulled further or a junction box can be installed to facilitate further connections Note that th...

Page 35: ...nt may be applied to the transducer face Because some paint types may be aggressive to the polyurethane in the transducer face please consult Simrad s list of approved paints Note Arctic tanks have ac...

Page 36: ...l Marine Coatings Address World wide offices Wesite www international marine com 1 Intersleek tie coat 425 FCS BXA386 BXA390 BXA391 Grey HKA563 HKA570 HKA571 Yellow Mix BXA386 BXA390 and BXA391 first...

Page 37: ...ransducer is bolted into the mounting ring The original installation drawings are available on PDF and AutoCad format Visit www simrad com to download In addition to the drawings available in this cha...

Page 38: ...C Junction Box 1 1 Optional GPT Transducer socket White White White Black Black Black Screen Connect to plug housing W802 8 Rev A ES38 10 Transducer cable termination FWD Sections seen from top of the...

Page 39: ...length 20 m Cable diameter 10 6 0 5 mm Arrow indicating forward 310 150 71 30o 150 100 12 R5 18 12 336 5 CD017015F Page 1 of 1 834 203329 Rev B Note All measurements are in mm unless otherwise specifi...

Page 40: ...ale WARNING lift the transducer by the cable Do not Air outlet Self locking threads Washer Bolt M10x100 Maximum torque 31 Nm Marking on transducer indicates forward FORWARD Steel blister to be manufac...

Page 41: ...pprox 3 deg X Min X 4 Minimum 400 mm FWD Sections seen from top of the transducer 1 Aft starboard 1 2 Aft port 2 3 Fore 4 Not used Screen to echo sounder chassis 3 Steel conduit Recommended to minimiz...

Page 42: ...in accordance with Simrad procedure 842 202125 Self lock taps can be supplied by Simrad Surface treatment 1 Sand blast to SA 2 5 2 One coating of red ferric oxide primer 0 2 CD017015G Page 1 of 2 871...

Page 43: ...21 1 Material St 52 3N DIN 17100 Round steel or plate 125 1 155 1 348 1 360 1 45 Chamfer 3 x 45 100 0 0 5 342 0 5 0 CD017015G Page 2 of 2 871 203337 Rev B Note All measurements are in mm The drawing...

Page 44: ...ents are in mm The drawing is not in scale Surface treatment To avoid acoustic noise it is very important that the surface of the blister is smooth Avoid cracks dents and other unevenness 1 Sand blast...

Page 45: ...ing file Air vent holes R25 to 50 mm 100 243 Depends on dead rise Minimum 400 mm B A A B B B CD017015H Page 2 of 2 830 203430 Rev B Note All measurements are in mm The drawing is not in scale 305176 A...

Page 46: ...R150 23 15 10 30 45 5 Bottom plate must be smooth and even 1 No concavity is accepted 2 Maximum convexity is 3 mm 3 Small local hollows max 1 mm can be accepted CD017015I Page 1 of 2 871 203432 Rev A...

Page 47: ...A Minimum 400 mm Height depends on dead rise Materials Steel plate Fe 510 D1 St 52 3 N 6 and 10 mm R10 10 6 6 CD017015I Page 2 of 2 871 203432 Rev A Note All measurements are in mm The drawing is not...

Page 48: ...unting 19 G GPT Connection ES38 10 transducer 36 GRP hull cable gland 29 H Handling 33 Heave vessel 6 I Inclination angle 8 Installation drawings 35 L Layer boundary 7 Location recommendation 8 transd...

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Page 52: ...82 8066 073 9 ISBN 13 978 82 8066 073 2 2006 Simrad Strandpromenaden 50 P O Box 111 N 3191 Horten Norway Simrad Horten AS Telephone 47 33 03 40 00 Telefax 47 33 04 29 87 simrad sales simrad com www si...

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