Simrad ES200-7CD DATASHEET

Installation manual

Simrad ES200-7CD

200 kHz split-beam deep water 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

Simrad ES200-7CD

Installation manual

This document provides a general description of how to install the Simrad ES200-7CD Split-beam transducer. The information must be regarded as general guidelines and recommendations only. The installation shipyard must design and manufacture installation hardware to ﬁtthe ES200-7CD transducer on each individual towed body

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November 2006

Document history

Document number: 307121 / ISBN-10: 82-8066-079-8 / ISBN-13: 978-82-8066-079-4 Rev. A

November 2006 First version.

Simrad Horten AS. No part of this document may be copied or reproduced in any form or by any mean s, and the information co ntained 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 fairl but does not accept liability for any errors or omissions.

y stated,

Warning

The equipment to which this manual applies must only be used for the purpose for which it was designed. Improp er use or maintenance may cause damage to the equipment and/or injury to personnel. The user mu s t be familiar with the contents of the appropriate manuals before att

empting to operate or work on the equipment. Simrad disclaims any responsibility for dam age or injury caused by improper installation, use or maintenance of the equipment.

Support

If you require maintenance on your Simrad equipment, contact your local dealer. You can also contact Simrad using the following e-mail address:s

ww.simrad.com for a list of our dealers and distributors, as well as information about other Simrad

imrad.support

products.

@simrad.com. Consult our web site

Simrad Horten AS

Strandpromenaden 50 P. O. Bo x 1 11 N-3191 Horten, Norway

Telephone:+4733034000 Telefax:+4733042987

www.simrad.com

simrad.sales@simrad.com

Installation manual

Table of contents

INTRODUCTION ................................................................ 5

TOWED BODY DESIG N ...................................................... 6

INSTALLATION PRINCIPLES ............................................. 8

HANDLING AND MAINTENANCE ...................................... 12

Rules for transducer handling.................................................................................12

Approved anti-fouling paints..................................................................................13

Using self-locking taps...........................................................................................14

DRAWING FILE ............................................................... 18

Deep water, split b eam transducer..........................................................................19

Outline dimensions.................................................................................................20

Mounting ring.........................................................................................................21

Clamping ring.........................................................................................................23

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Simrad ES200-7CD

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INTRODUCTION

The purpose of this manual i s the provide the basic information required to install the Simrad ES200-7CD Split-beam transducer.

Note that although drawings are provided to explain the installation principles, the manufacturer of the towed body must provide the ﬁnal drawings required to ﬁt the transducer.

Transducer order number: KSV-207134.

Caution The transducer must never be lifted free of the water

surface while the echo sounder is operational.

Transducer installation

The next chapter in this manual provides general guidelines for transducer installation. The drawings speciﬁc for the ES200-7CD transducer are located in the Drawing ﬁle on page 18.

Introduction

Technical speciﬁcations

Refer to the ES200-7CD Product speciﬁcation.

Connector

The ES200-7CD transducer is ﬁtted with a Burton 8–pin female connector, type 5501–2008.

Additional parts

The following items can be supplied by Simrad to facilitate installation:

• Mounting ring: Order number ES2–204464

• Clamping ring: Order number ES2–200879

• Transducer cable (for extension): Order number 642–078215

– Note that this cable is NOT suitable as a tow cable!

The following parts must (if required) be provided by the installation shipyard:

• Male bulkhead connector: 8–pin Burton 5500 Series

ww.burtonee.com)

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Simrad ES200-7CD

TOWED BODY DESIGN

The towed body used to hold the ES200-7CD Split-beam transducer is n manufacturing of such a body must be made by your own organisation, or by a third party you wish to engage to do this. During the design phase, the following considerations must be made.

Figure 1 Example, towed body

ot provided by Simrad. The design and

(CD017201C)

(A) = Transducer mounted through the body plating by means of a mounting ring

(B) = Watertight compartment with transceiver electronics

Location of transceiver electronics

(D) = Tow line with built-in cables for power supply, control and data transfer (ethernet)

(E) = Fairings

If your towed body design comprises a watertight compartment, you may choose to install the transceiver circuitry inside the towed body. In order to do so, you must install watertight sockets on the bulkhead in order to connect the transducer cable(s), control and data transfer (ethernet) and operating power.

By using a this arrangement, you avoid the signal loss you may experience using a long transducer cable.

Depth

The upper water layers of the sea contain a myriad of small air bubbles created by the breaking waves. In heavy seas the uppermost 5 to 10 metres may be air-ﬁlled, with the highest concentrations near the surface. Air bubbles absorb and reﬂect

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Towed body design

the sound energy, and may in worst cases block the sound transmission totally. Therefore, design the towed body so that it can operate in deep water.

Caution Observe the maximum operational depth of the

transducer. Do not exceed this limitation. Do not allow the towed body to hit the sea bed. This

may inﬂict permanent damage to the transducer(s).

Noise from protruding objects on the body

Objects protruding from the towed body, such as zinc anodes, sonar transducers or even a rudder or a keel, may generate turbulence and ﬂow noise. Holes and pipe outlets are also possible noise sources, as these may act as resonant cavities amplifying the ﬂow noise at certain frequencies. Do not place an echo sounder transducer in the vicinity o f such objects, and especially not close behind them.

For the same reason, it is very important that the body area adjacent to the transducer face is as smooth and level as possible. Even traces of sealing compound, sharp edges, protruding bolts or bolt holes without ﬁlling compound will create noise.

Inclination of the transducer face

Ideally, the transducer face should be mounted in parallel with the sea surface when the towed body is in normal trim, as this will provide the most accurate echo information. However, it is also very important that the w

ater ﬂow over the transducer face

is laminar. In order to ensure laminar ﬂow, the transducer face may be tilted

slightly upwards in relation to the water ﬂow. This allows the ﬂowing water to meet the face directly, and assures laminar ﬂow. The inclination angle must however be determined carefully. The angle must be small on transducers with narrow beam angles. As a rule of thumb, mount transducers with beam angles smaller than seven degrees with minimum inclination angle. The smaller beam angle your transducer has, the smaller the inclination angle can be.

Ensure that you do not mount the transducer with a negative inclination angle. This may cause turbulence under the transducer face, and reduced echo sounder performance.

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