Simrad ITI Trawl monitoring system
Measures position of signel and twin trawls Full range of sensors Split beam transducer technology Nine display modes of efficient use Well proven technology Locate lost gear
www.simrad.com TECHNOLOGY FOR SUSTAINABLE FISHERIES

SIMRAD ITI

Simrad ITI is the ultimate wireless Trawl Positioning and Monitoring System.
Simrad ITI is a complete wireless trawl positioning and monitoring system. It is designed to improve control and efficiency in pelagic and bottom trawling. Small, robust, battery-powered sensors mounted on the trawl, transmit important information to the vessel on request. The Simrad ITI allows you to monitor the exact position of the gear, and what is happening in and around the trawl. This provides crucial information for effective, profitable and responsible fishing.
Adaptable and easy to use
Simrad was the first company to develop an entire range of trawl monitoring systems using LCD monitors.
The Simrad ITI is a modular system. Starting with one sensor, the Simrad ITI system can be expanded to a complete and advanced instrument package. Data from the trawl mounted sensors is presented on a colour monitor with emphasis on ease of use. Operation is simple and based on display menus.
Robust, serviceable and intelligent
and replaceable electronics. By only responding when interrogated, prolonged operational life between charges is achieved. The Simrad ITI is designed for interfacing with navigational systems, sonars and echo sounders.

Position of the trawl

Display options
The Simrad ITI System has many display modes. Logged data from the sensors and navigational instruments, stored in real time, provides valuable information for each tow. The temperature - depth profile indicates correct positionng and the grid sensor i shows the angle of the sorting grid.
The Simrad ITI is designed for the future, and it is based on the proven technology. The sensors are extremely robust with serviceable
One of the great advantages of the Simrad ITI system is the ability to measure the range and bearing to each sensor. Knowing the position of the trawl allows you to avoid wrecks and obstacles on the seabed. You are able to target fishing grounds more efficient based on information from your echo sounder and sonar.
A major benefit of the ITI system is the trawl positioning feature.
By knowing the trawls position you can avoid wrecks and obstacles on the seabed.
The ITI Tactical display shows all necessary information with regard to the trawls position relative to the vessel.
Distance and bearing, trawl geometry and catch are displayed in the horizontal projection.
The Trawl Eye echogram shows position of the trawl relative to the bottom, fish in the opening and the height of the trawl.
The Simrad ITI system is operated by self- xplanatory menus. The menu is e available in several languages.
The menu entries can be selected using the keypad.
Trawl monitoring with Simrad ITI
A)Depth/Temperature sensor This sensor monitors the depth of the trawl, and the water temperature. B)Trawl Eye sensor The sensor monitors the trawl opening C)Distance/Spread sensor The distance sensors monitor door or wing spread. D)Catch sensor The catch sensors acknowledge as the cod end fills with fish, indicated by a green square icon on the screen turning red when the sensor is activated.

Monitoring of the trawl and catch situation
The Normal mode picture presents you with a complete overview of the trawl and catch situation on the screen.
The picture is divided into three sections: 1 Distance and bearing to the trawl, door or wing spread and the catch are displayed in the horizontal section. 2 The vertical section showing the depth of the trawl, the sea temperature, the catch, the bottom contours from the echo sounder and the time lag between the vessel and the trawl. 3 The height of the trawl, the bottom clearance and the trawl deviation from the ships course line, is displayed in the aft view section. In addition, the ships echosounder coverage at the trawl depth is shown.
The Normal mode provides you with an overview of important catch and trawl data.
The Simrad ITI Trawl Eye - efficient wireless net sounding
The Simrad Trawl Eye monitors the trawl opening.
The Simrad Trawl Eye sensor has a sophisticated built-in echo sounder providing information on fish in the trawl opening, the height of the trawl and clearance to the bottom. The amount of fish in the opening is clearly displayed and the density of fish is indicated by echo strength. The footrope and bottom sounding are onstantly monitored giving c information on the trawl opening and behavior of the trawl when bottom trawling. Information is displayed as an easy to understand echosounder picture. The Trawl Eye is best suited for bottom and medium size pelagic trawlers. The Trawl Eye echogram gives detailed information about the trawl opening, fish entering the trawl and footrope bottom contact.
Twin trawl monitoring with Simrad ITI
A)Spread Sensor The spread sensors monitor the distance between the center weight and both trawl doors. B)Trawl Eye/Height Sensor The Trawl Eye and Height sensor monitors the trawl opening. C)Twin Combi sensor This sensor monitors the depth, and the ambient water temperature. D)Catch Sensor The Catch sensors acknowledge as the cod end fills up fish. This is indicated both visually and audibly.
Simrad ITI Trawl Geometry - full control of Twin Trawl
The wireless Simrad ITI transponder system for Twin Rigging is designed to utilize a minimum of transponders to achieve full coverage of the trawl geometry and true movement over the bottom.

With better than 1 m relative accuracy, the new Simrad ITI Geometry System provides measurements for: Vessel to starboard and port trawl door and Vessel to the center weight. With this accuracy, the ITI Geometry System will measure the distances between the center weight and both trawl doors. The ITI system can be expanded to provide a wide variety of data. The Twin Combi sensor is located on the center weight to detect depth and water temperature. The Trawl Eye sensor and the Height sensor can be mounted in the trawl openings to detect trawl heights, bottom contact and fish entering the trawl. In addition, Catch sensors can be mounted on both cod ends to measure the amount of fish caught.

Technical specifications

Note that the specifications can be altered without prior warning.

System

Sensors
The ITI System consists of the following main units: Display monitor (*) Transceiver Unit Dual or triple split beam transducer system Trawl mounted sensors and Trawl Eye
(*) The display is not a part of the delivery, and must be obtained locally. The display must comply to a standard VGA output. All sizes can be used, but the ITI has not been prepared for wide screens (16:9).
Selectable scales: Max 4000 m. Detection range depends on transducer installation, ambient noise level, temperature gradient and sensor alignment. Measuring accuracy: - Distance: Typical 5 m - Bearing: Typical 1

Data interfaces

Display modes and operation
Normal mode: Horizontal and vertical section, athwartships view Tactical display: Birds eye view with target and trawl position Temp/Depth: Depth/temperature gradient curve Trawl Data Log: Stored trawl data Grid: Grid angle Status views: System parameter setting Trawl Eye echogram: Side view of trawl opening Trawl Eye, split screen: Side view of trawl opening, range and bearing to the trawl Test: Sensor communication protocol Operation: Keypad operated multilingual menu
Gyro: Stepper/synchro types Speed log: Pulse, analogue, Simrad NL Doppler Log, or GPS Serial lines: Four NMEA0183 serial lines Option: Ethernet interface

Power requirements

Voltage: 220 Vac, 15%, 50/60 Hz Consumption: 90 W

Transducer

Common sensor specifications: Moulded housing with replaceable electronics Rechargeable batteries Operational life between charging: Approximately 40 hours when interrogated every 15 seconds Max operating depth: 2000 m Frequency range: 27 - 33 kHz Weight: Approximately 3 kg (in water). Sensor types: Depth sensor Temperature sensor Temperature/Depth combination Spread sensor Trawl Eye sensor Catch sensor Height sensor Grid sensor
Ceramic, split beam transducer type, supplied with 20 m cable, diameter 12 mm in a dual or triple transducer configuration. Beam width: 40 (-3 dB), circular Horizontal coverage: 70 -100 depending on arrangement (two single or one triple)

340165 / Rev.A / October 2009

Simrad

Kongsberg Maritime AS Strandpromenaden 50 P.O.Box 111 N-3191 Horten, Norway
Telephone: +00 Telefax: +87 www.simrad.com simrad.sales@simrad.com

Operator manual

Simrad ITI Trawl instrumentation system
Simrad ITI Trawl Instrumentation System

Base version

850--043814 / AA000
Note Simrad AS makes every effort to ensure that the information contained within this document is correct. However, our equipment is continuously being improved and updated, so we cannot assume liability for any errors which may occur. 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 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 AS disclaims any responsibility for damage or injury caused by improper installation, use or maintenance of the equipment. Copyright 2002 Simrad AS The information contained within this document remains the sole property of Simrad AS. No part of this document may be copied or reproduced in any form or by any means, and the information contained within is not to be communicated to a third party, without the prior written consent of Simrad AS.
Simrad AS Strandpromenaden 50 Boks Horten Telephone: Facsimile: Internet: www.simrad.com
A LWAYS AT THE F ORE FRON T OF TE CH NO LOGY

850--043814D

Cover and Contents

Sections

1 System familiarization
This section defines and describes the main system units, and presents a brief theory of operation.

Operational procedures

This section presents the most common procedures to cover the normal day-to-day operations.
Screen presentation modes
This section describes the various operational modes and the information found on the display.

Command references

This section describes each command and option in detail. The document is intended for reference purposes only.

ITI sensors

This section describes the sensors used with the ITI system. The description includes charging procedures and technical specifications.

On-board maintenance

This section describes the preventive and corrective maintenance actions to be performed by the ITI operator on board the vessel.

ITI Ethernet

This section describes the Ethernet commands.

Technical specifications

This section lists the main technical specifications of the Simrad ITI system.

P2212D

Simrad ITI Base version

Remarks

References
Further information about the ITI system may be found in the following manual: ITI Installation Manual, P2257.

The reader

This operator manual is intended to be used by the system operator. He/she should be experienced in the operation of positioning systems, or should have attended a Simrad training course.
This manual includes sections that may be revised individually. In the event of a revision to any part of this manual, this Cover and Contents section will be replaced.

Document revisions

Rev Written by Date Sign Checked by Date Sign Approved by Date Sign

A B C D E F G H

. 02.04.93 16.01.97 NB CL
. 02.04.93 16.01.97 KEG EPB
. 02.04.93 16.01.97 TAL KEG
The original signatures are recorded on the companys logistic data system.

Simrad References

(The information on this page is intended for Simrads internal use)

Documents

Sect 8 Cover and contents System familiarization Operational procedures Screen presentation modes Command references ITI sensors On--board maintenance ITI Ethernet Technical specifications Title Loc. AA000 4AA024 4A0024 4A0024 4A0024 4A0024 4A0024 4A0024 4A0024 File 850--043814 850--130062 850--130661 850--130663 850--130660 850--130665 850--160664 850--160071 850--130666 P.no/Rev P2212D P3054/A P3053/A P3055/A P3052/A P3057/A P3056/A P3454/A P3058/A

Revisions

Rev. A Rev. B Rev. C Rev. D First edition Second edition New software version 2.12 Manual updated to reflect new software version 3.10. At the same time Simrads new documentation standard has been implemented.
To assist us in making improvements to the product and to this manual, we would welcome comments and constructive criticism. Please send all such - in writing or by Email - to: Simrad AS Documentation Department P.O.Box 111 N- 3191 Horten Norway or Email: simrad.documentation@simrad.com