Simrad ES200-7CD - INSTALLATION REV A User manual

Installation manual
Simrad ES200-7CD
200 kHz split-beam deep water transducer
MAXIMIZING YOUR PERFORMANCE AT SEA
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.
307121/A
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.
Copyright
©2006 Simrad Horten AS. 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.
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 and/or injury to personnel.
The user must be familiar with the contents of the appropriate manuals before attempting to operate or
work on the equipment. Simrad disclaims any responsibility for damage 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:[e-mail]. Consult our web site
www.simrad.com for a list of our dealers and distributors, as well as information about other Simrad
products.
Strandpromenaden 50
P. O . B o x 1 1 1
N-3191 Horten,
Norway
Simrad Horten AS
Telephone:[phone]
Telefax:[phone]
[email protected]
www.simrad.com

Installation manual
Table of contents
INTRODUCTION ................................................................ 5
TOWED BODY DESIGN ...................................................... 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 beam transducer..........................................................................19
Outline dimensions.................................................................................................20
Mounting ring.........................................................................................................21
Clamping ring.........................................................................................................23
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Simrad ES200-7CD
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Introduction
INTRODUCTION
The purpose of this manual is 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.
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
(www.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 not provided by Simrad. The design and
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
A
B
C
D
E
(CD017201C)
(A) = Transducer mounted
through the body plating by
means of a mounting ring
(B) = Watertight compartment
with transceiver electronics
(C) = Tail fin
(D) = Tow line with built-in
cables for power supply, control
and data transfer (ethernet)
(E) = Fairings
Location of transceiver electronics
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 of 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 water 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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Simrad ES200-7CD
INSTALLATION PRINCIPLES
Transducers designed to withstand large water pressure are
provided for use in towed bodies. The recommended installation
method is through the hull plating hull using mounting and
clamping rings. The installation arrangement on the towed body
must be designed by the manufacturer of the towed body to fit
its shape and characteristics.
Mounting and clamping rings
Circular transducers may be provided with mounting and
clamping rings, or with drawings to allow for local production of
these. The mounting ring is welded to the hole in the towed array,
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 them. Note that all split-beam
transducers use direction guides to allow correct mounting.
Smooth surface
Mounting screws or bolts must not be extruding from the vehicle.
Ensure that the surface of the transducer face, the vehicle, the
vehicle plating and putty around the transducer is as even and
smooth as possible. Obstructions on these surfaces will create
problems with the water flow.
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