Simrad TRANSDUCER - INSTALLATION GENERIC REV H Installation Manual

Simrad TRANSDUCER - INSTALLATION GENERIC REV H Installation Manual

Echo sounder transducers

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Installation manual
Simrad transducers
Installation principles and guidelines
www.SIMRAD.com
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

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Summary of Contents for Simrad TRANSDUCER - INSTALLATION GENERIC REV H

  • Page 1 Installation manual Simrad transducers Installation principles and guidelines www.SIMRAD.com 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 S E A...
  • Page 3 Echo sounder transducers Installation manual This document provides a generic description of echo sounder transducer installation. The information must be regarded as general guidelines and recommendations only. The installation shipyard must design and manufacture installation hardware to fit each individual transducer and vessel.
  • Page 4 The information contained in this document remains the sole property of Simrad Horten AS. No part of this document may be copied or reproduced in any form or by any means, and the information contained within it is not to be communicated to a third party, without the prior written consent of Simrad Horten AS. Disclaimer Simrad Horten AS endeavours to ensure that all information in this document is correct and fairly stated, but does not accept liability for any errors or omissions.
  • Page 5: Table Of Contents

    Cable glands for small hulls ...................35 Cable splicing ......................36 STEEL CONDUIT .............. 37 HANDLING AND MAINTENANCE ........38 Approved anti-fouling paints..................39 SIMRAD TRANSDUCERS ..........40 All 12 kHz transducers ...................41 All 18 kHz transducers ...................41 All 27 kHz transducers ...................41 All 38 kHz transducers ...................42 All 50 kHz transducers ...................44...
  • Page 6 Simrad Echo sounder transducers All 710 kHz transducers ..................49 GPT TRANSDUCER TERMINATIONS ......... 51 Single beam, normal power transducer ..............52 Single beam, high power transducer ..............53 Dual beam (wide or narrow) transducer..............54 Split beam transducer .....................55 Split beam transducer to single beam transceiver ..........56 Single beam transducer to split beam transceiver ..........57...
  • Page 7: Introduction

    Whenever required, the installation shipyard must also have the installation approved by the applicable maritime authorities. For detailed information about the transducer to be installed, refer to the documentation provided with the transducer. Drawings and descriptions can also be obtained from http://www.simrad.com. 851-160164/H...
  • Page 8: Transducer Location

    Simrad Echo sounder transducers TRANSDUCER LOCATION A single answer to the question where to locate the transducer cannot be given. It depends very much on the vessel’s construction. However, there are some important guide lines. Go deep The upper water layers of the sea contain a myriad of small air bubbles created by the breaking waves.
  • Page 9: Boundary Water Layer

    Transducer location Boundary water layer When the vessel forces its way through the sea, the friction between the hull and the water creates a boundary layer. The thickness of the boundary layer depends upon vessel speed and the roughness of the hull. Objects protruding from the hull, and dents in the hull, disturb the flow and increase the thickness of the boundary layer.
  • Page 10: Inclination Of The Transducer Face

    Simrad Echo sounder transducers outside the direct line of sight from the propeller are favourable. On small vessels with short distances it is advised to mount the transducer on that side of the keel where the propeller blades move upwards, because the propeller cavitation is strongest on the other side.
  • Page 11 Transducer location (CD017004Q) General recommendation for transducer location: (A) = Transducer (B) = Inclination angle (L) = Hull length at water line (M) = Maximum 1/3 of 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.
  • Page 12: Ways Of Mounting The Transducer

    Simrad Echo sounder transducers WAYS OF MOUNTING THE TRANSDUCER There are many different ways to mount the transducer. Topics External mounting on page 11 Transducer blister on page 16 Box keel on page 22 Flush mounting in a steel tank on page 24...
  • Page 13: External Mounting

    Ways of mounting the transducer External mounting Certain transducers have a streamlined housing, and these are designed for installation outside the hull. These transducers are mainly used on smaller vessels. A location approximately 0.5 m aside from the keel may be adequate for the passage of water between the keel and the transducer.
  • Page 14 Simrad Echo sounder transducers Steel hull A fairing (A), made by the shipyard, is placed between the transducer and the hull. It is required in order to adapt for the deadrise angle of the hull, and it will also house a cable service loop (B).
  • Page 15 Ways of mounting the transducer Wood or polyester hull A fairing (A), made by the shipyard, is placed between the transducer and the hull. It is required in order to adapt for the deadrise angle of the hull, and will also house a cable service loop (B).
  • Page 16 Simrad Echo sounder transducers Hull with flat bottom If the vessel’s hull is flat you do not need a fairing. The transducer is then be bolted directly to the hull using two bronze or stainless steel bolts (I) and a cable bushing. Note that the...
  • Page 17 Ways of mounting the transducer Toe-in The primary consideration must be to allow laminar water flow. In most cases this is achieved by placing the transducer (A) parallel with the keel (C). However, if the transducer is located close to the bow, the front of the transducer may have a few degrees (5 to 8°) toe-in towards the bow.
  • Page 18: Transducer Blister

    Simrad Echo sounder transducers Transducer blister With a transducer with circular housing, one recommended installation method is by using a blister. The transducer blister must be designed and manufactured by the installation shipyard to fit the vessel’s size and hull shape.
  • Page 19 Ways of mounting the transducer Example: Large transducer The illustration below shows a typical transducer blister designed for a large transducer. Note that due to the physical size of the transducer, a U-shaped support bar (E) is used to support the transducer.
  • Page 20 Simrad Echo sounder transducers Example: Small transducer The illustration below shows a typical transducer blister designed for a small transducer. The same blister design principles as for a large transducer apply. (CD017010B) (A) = Streamlined blister (E) = Air outlet...
  • Page 21 Ways of mounting the transducer Example: Medium sized transducer without clamping ring The illustration below shows a transducer blister designed for a medium sized transducers. The same blister design principles apply. Note that the transducer is mounted without a clamping ring, which makes it necessary to use a different mounting ring design.
  • Page 22 Simrad Echo sounder transducers Common guidelines The best performance is obtained with a blister height of 40 cm or more. A streamlined shape and rounded edges reduce the flow noise. A vertical leading edge or front will guide the aerated water to the sides of the blister.
  • Page 23 Ways of mounting the transducer Observe the horizontal and vertical distances (X and Y) between the keel and the transducer blister. On a medium sized vessel, the horizontal distance (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.
  • Page 24: Box Keel

    Simrad Echo sounder transducers Box keel Vessels with a box keel may use this for transducer installation. The box keel is already the deepest part of the vessel. If the box keel is too narrow to accommodate the transducer, it can be widened, either symmetrically or to one side only.
  • Page 25 Ways of mounting the transducer Example The figure below illustrates a symmetrical box keel installation. (A) = Box keel (B) = U-shaped support bar (only required on large transducers) (C) = Stuffing tube (D) = Cable in steel conduit (E) = Cable service loop 851-160164/H...
  • Page 26: Flush Mounting In A Steel Tank

    Simrad Echo sounder transducers Flush mounting in a steel tank Flush mounting is used on very large vessels with a hull so deep that no air bubbles are found below the hull, and on vessels operating in shallow harbours or waters, where a protruding blister can not be accepted.
  • Page 27 Ways of mounting the transducer Example Transducer mounting in a steel tank is shown in the figure below. (CD17012A) (A) = Steel tank (B) = Water (C) = Drainage hole (D) = Cable service loop (E) = Steel tube for air outlet (F) = Stuffing tube (G) = Cable in steel conduit 851-160164/H...
  • Page 28: Acoustic Window

    Acoustic window Vessels operating in arctic waters need special attention on transducer installation. Floating blocks of ice may damage even a flush mounted transducer face. For this situation Simrad offers arctic tanks in different sizes. Mounting and clamping rings Circular transducers may be provided with mounting and clamping rings, or with drawings to allow for local production of these.
  • Page 29 Ways of mounting the transducer Example The transducer shown in the figure below is mounted inside the tank behind a strong acoustic window which could be made of polycarbonate. The tank is filled with oil. (CD017012B) (A) = Steel tank (B) = Oil (C) = Acoustic window (D) = Cable service loop...
  • Page 30: Inside The Hull

    The loss varies with the distance between transducer face and the hull. The best result is obtained when the distance is half a wavelength. Consult Simrad for advice. In addition to the loss, the beam pattern is degraded, because a larger area of the hull is set into vibrations.
  • Page 31 Ways of mounting the transducer Example The transducer shown in the figure below is mounted inside the hull. The tank is filled with oil. (CD017012C) (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...
  • Page 32: Drop Keel

    Simrad Echo sounder transducers Drop keel The use of a drop keel with the purpose of stabilising the vessel is well known. A drop keel is also a superior platform for echo sounder transducers. Such instrument keels have been built, mainly on research vessels, often protruding as far as three meters below the hull.
  • Page 33: Retractable Transducer

    Ways of mounting the transducer Retractable transducer Hull units allowing the transducer to be lowered and hoisted are commonly used for horizontal looking sonars. When not in use, the transducer is retracted into a trunk. The retractable hull unit is more expensive than a blister, but on vessels with a hull where it is difficult or impossible to install a blister, it may still be worth while.
  • Page 34: Cable Glands

    Note Simrad strongly recommends that a length of conduit is fitted around transducer cable glands made of steel or bronze and extended over the water-line inside the vessel. This precaution reduces the danger of flooding in the event of gland failure and...
  • Page 35: Cable Gland For Steel Hulls

    The cable gland kit includes all of the necessary parts needed to install the unit except screws. Simrad recommends that a one inch steel conduit (that the transducer cable will be run through) with an inside threaded diameter of three-quarter inches is welded to the gland’s stuffing tube.
  • Page 36: Cable Gland For Wood Or Grp Hulls

    The cable gland kit includes all of the necessary parts needed to install the unit except screws. Simrad recommends that a one inch steel conduit (that the transducer cable will be run through) with an inside threaded diameter of three-quarter inches is attached to the gland’s packing nipple.
  • Page 37: Cable Glands For Small Hulls

    Cable glands Cable glands for small hulls This cable glands made of plastic is designed for those smaller vessels that do not need to be classified. (CD17008C) (A) = Packing nut (bronze). Ensure that you do not to damage the transducer cable by tightening the packing nut too hard! (B) = Rubber gasket (C) = Plastic disk (D) = Rubber gasket...
  • Page 38: Cable Splicing

    If you need to cut or lengthen the transducer cable, you must splice it correctly. The cable between the junction box and the transceiver must then be supplied by Simrad, and this must be the same type as used on the transducer(s).
  • Page 39: Steel Conduit

    Steel conduit STEEL CONDUIT It is strongly recommended to lay a steel conduit from the transducer’s cable gland to the echo sounder transceiver, and to pull the transducer cable through this conduit. There are two reasons for this. • First, it will make it easier at a later stage to replace the transducer.
  • Page 40: Handling And Maintenance

    An anti-fouling paint 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 acoustic windows made of polycarbonate.
  • Page 41: Approved Anti-Fouling Paints

    Handling and maintenance Approved anti-fouling paints This is Simrad’s list of approved antifouling paints on polyurethane transducer housing. Jotun Head office address: P.O.Box 2021, N-3248 Sandefjord, Norway Website: www.jotun.com. Racing Non-stop Safeguard Universal primer (125 micron) with Antifouling SeaQuantum Ultra (125 micron)
  • Page 42: Simrad Transducers

    Simrad Echo sounder transducers SIMRAD TRANSDUCERS This chapter presents a list of all the current Simrad transducers. For each transducer, information is provided to establish: • the transducer type and frequency • the opening angle(s) • the order number for the transducer •...
  • Page 43: All 12 Khz Transducers

    Simrad transducers All 12 kHz transducers The following 12 kHz transducers are available. Simrad 12-16/60 • Single or dual beam, 12 kHz Type and frequency: • 16° or 60° (Passive) Opening angle: • Fish finding, hydrographic and scientific Typical applications: echo sounders •...
  • Page 44: All 38 Khz Transducers

    Simrad Echo sounder transducers • KSV-067159 Order number, transducer: • 642-022491 Order number, transducer cable: • Dual beam (wide or narrow) transducer on GPT connection: page 54 All 38 kHz transducers The following 38 kHz transducers are available. Simrad 38-7 •...
  • Page 45 Shipyard supply Order number, transducer cable: • Deep water, split beam transducer on page 60 GPT connection: Simrad 38/200 Combi C • Dual frequency single beam, 38 and 200 Type and frequency: • 13 x 21° and 7 x 7°...
  • Page 46: All 50 Khz Transducers

    Simrad Echo sounder transducers Simrad 38/200 Combi W • Dual frequency single beam, 38 and 200 Type and frequency: • 31 x 31° and 31 x 31° Opening angle: • Fish finding echo sounders Typical applications: • KSV-208845 Order number, transducer: •...
  • Page 47: All 70 Khz Transducers

    Simrad transducers Simrad 50/200 Combi C • Dual frequency single beam, 50 and 200 Type and frequency: • 10 x 16° and 7 x 7° Opening angles: • Fish finding echo sounders, Catch Typical applications: monitoring systems • KSV-202193 Order number, transducer: •...
  • Page 48: All 120 Khz Transducers

    Simrad Echo sounder transducers All 120 khz transducers The following 120 khz transducers are available. Simrad 120-25 • Single beam, 120 khz Type and frequency: • 10° Opening angle: • Fish finding and hydrographic echo Typical applications: sounders • KSV-062615 Order number, transducer: •...
  • Page 49: All 200 Khz Transducers

    Simrad transducers • KSV-110553 Order number, transducer: • 642-078215 Order number, transducer cable: • Split beam transducer on page 55 GPT connection: Simrad ES120-7G • Split beam, 120 khz Type and frequency: • 7° Opening angle: • Scientific echo sounders Typical applications: •...
  • Page 50 Simrad Echo sounder transducers • 7° Opening angle: • Fish finding and hydrographic echo Typical applications: sounders • KSV-203378 Order number, transducer: • 642-016604 Order number, transducer cable: • Single beam, normal power transducer on GPT connection: page 52 Simrad 200-7F •...
  • Page 51: All 710 Khz Transducers

    Order number, transducer cable: • Split beam transducer on page 55 GPT connection: Simrad 38/200 Combi C For information about this transducer, see All 38 kHz transducers on page 42 Simrad 38/200 Combi D For information about this transducer, see All 38 kHz transducers...
  • Page 52 Simrad Echo sounder transducers Simrad 710-36E • Single beam, 710 kHz Type and frequency: • 2,8° Opening angle: • Hydrographic and scientific echo Typical applications: sounders • KSV-089292 Order number, transducer: • 642-016604 Order number, transducer cable: • Single beam, normal power transducer on...
  • Page 53: Gpt Transducer Terminations

    GPT transducer terminations GPT TRANSDUCER TERMINATIONS This chapter provides details cable drawings describing how the various Simrad transducers are connected to the General Purpose Transceiver (GPT) unit. Cables Single beam, normal power transducer on page 52 Single beam, high power transducer on page 53...
  • Page 54: Single Beam, Normal Power Transducer

    Simrad Echo sounder transducers Single beam, normal power transducer This is the termination of the transducer cable from a single frequency, single beam transducer to the transducer socket on the General Purpose Transceiver Unit (GPT). The other end of the cable is permanently fixed to the transducer.
  • Page 55: Single Beam, High Power Transducer

    GPT transducer terminations Single beam, high power transducer This is the termination of the transducer cable from a single frequency, single beam transducer to the transducer socket on the General Purpose Transceiver Unit (GPT). The other end of the cable is permanently fixed to the transducer. High power output is achieved when the GPT is equipped with four transmitter boards.
  • Page 56: Dual Beam (Wide Or Narrow) Transducer

    Simrad Echo sounder transducers Dual beam (wide or narrow) transducer This is the termination of the transducer cable from a single frequency, dual beam transducer to the transducer socket on the General Purpose Transceiver Unit (GPT). The other end of the cable is permanently fixed to the transducer.
  • Page 57: Split Beam Transducer

    GPT transducer terminations Split beam transducer This is the termination of the transducer cable from a single frequency, split beam transducer to the transducer socket on the General Purpose Transceiver Unit (GPT). The other end of the cable is permanently fixed to the transducer. Forward GPT Transducer socket...
  • Page 58: Split Beam Transducer To Single Beam Transceiver

    Simrad Echo sounder transducers Split beam transducer to single beam transceiver This is the termination of the transducer cable from a single frequency, split beam transducer - wired as a single beam transducer - to the socket on the General Purpose Transceiver Unit (GPT).
  • Page 59: Single Beam Transducer To Split Beam Transceiver

    GPT transducer terminations Single beam transducer to split beam transceiver This is the termination of the transducer cable from a single frequency, single beam transducer to the socket on a split beam General Purpose Transceiver Unit (GPT). The other end of the cable is permanently fixed to the transducer.
  • Page 60: Dual Frequency, Single Beam Transducer

    Simrad Echo sounder transducers Dual frequency, single beam transducer This is the termination of the transducer cable from a dual frequency, single beam transducer to the socket on the General Purpose Transceiver Unit (GPT). The other end of the cable is permanently fixed to the transducer.
  • Page 61: Sidescan Transducer

    GPT transducer terminations Sidescan transducer This is the termination of the transducer cable from two sidescan transducers (port and starboard) to the socket on the General Purpose Transceiver Unit (GPT). The other end of each cable is permanently fixed to the transducers. If only one sidescan transducer is used, connect is as a port side unit to terminals C and D on the GPT socket.
  • Page 62: Deep Water, Split Beam Transducer

    Simrad Echo sounder transducers Deep water, split beam transducer This is the termination of the transducer cable from a deep water transducer. This transducer is designed to be used on submergibles, for example towed arrays. The cable is equipped with a watertight connector. The other end of the cable is permanently fixed to the transducer.
  • Page 63: Es38-10 Transducer

    GPT transducer terminations ES38–10 transducer This is the termination of the transducer cable from the ES38–10 split-beam transducer to the transducer socket on the ES60 and EK60 General Purpose Transceiver Unit (GPT). The other end of the cable is permanently fixed to the transducer. GPT Transducer socket Sections seen from top...
  • Page 64: 12-16/60 Transducer

    Simrad Echo sounder transducers 12-16/60 transducer This is the termination of the transducer cable from the 12–16/60 single or dual beam transducer to the transducer socket on the General Purpose Transceiver Unit (GPT). The other end of the cable is permanently fixed to the transducer.
  • Page 65: 50/200 Combi C Transducer

    GPT transducer terminations 50/200 Combi C transducer This is the termination of the transducer cable from the 50/200 Combi C transducer. The transducer cable is terminated in a Multi-Con-X connector manufactured by Conxall (www.conxall.com). The other end of the cable is permanently fixed to the transducer.
  • Page 66: 38/200 Combi C Transducer

    Simrad Echo sounder transducers 38/200 Combi C transducer This is the termination of the transducer cable from the 38/200 Combi C transducer. The transducer cable is terminated in a Multi-Con-X connector manufactured by Conxall (www.conxall.com). The other end of the cable is permanently fixed to the transducer.
  • Page 67 Simrad 27-26/21, 41 50/200 Combi C, 45 deep water transducer, 60 38 kHz transducers 50/200 Combi D, 45 Dual beam transducer, 54 Simrad 38/200 Combi C, 43 Dual frequency transducer dual frequency sidescan Simrad 38/200 Combi D, 43 connection, 58 transducer, 59...
  • Page 68 Simrad Echo sounder transducers Dual frequency Propeller Surface transducer, 58 noise, 7 acoustic window, 26 ES38–10 transducer, 61 Protruding objects, 6 blister, 16 single beam transducer, box keel, 22 52–53, 57 external mounting, 11 split beam transducer, 55–56 flush mounting, 24...
  • Page 69: 851-160164/H

    Index Transducer ES70-11, 45 Transducer ES70-7C, 45 Vessel heave, 6 Water filled flush mounting, 24 Wooden hull external mounting, 13 851-160164/H...
  • Page 70 ISBN-10: 82-8066-036-4 ISBN-13: 978-82-8066-036-7 © 2006 Simrad Simrad Horten AS Strandpromenaden 50 Telephone: +47 33 03 40 00 P.O.Box 111 Telefax: +47 33 04 29 87 N-3191 Horten, www.simrad.com Norway simrad.sales@simrad.com...

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