Simrad FS70 - REV 3 User manual

FS 70 OPERATOR MANUAL
974-24007001
Issue 3.0 January 2009

FS 70 Operators Manual 974-24007001/3.0
List of Contents Page 1
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
KONGSBERG MESOTECH LTD
Customer Products Warranty Policy
Effective January 1, 2009
Kongsberg Mesotech Ltd. Warrants each new product (equipment) to be free of
defects caused by faulty materials or poor workmanship for a period of twenty-four
(24) months for underwater and surface equipment from date of installation by an
authorized Kongsberg Group Company, Simrad Distributor, Dealer or Agency. The
warranty does not apply to defects caused by force majeure events or misuse
including water damage to the surface equipment, improper maintenance and
installation or including excessive wear and tear for which Kongsberg Mesotech Ltd.
is not responsible.
Underwater Equipment:
•Warranty for Underwater Equipment that is hull mounted, such as those
mentioned below, will be assessed on a case-by-case basis but shall generally
not be covered by the warranty:
•Hull Units, Sonar Dome Assemblies and Echo Sounder Transducers
•Transducer Units, Speed, Temperature and Depth Sensors
Note: Additional expenses connected with replacement of transducers, such as dry-
docking and diving, are not covered by this warranty.
Warranty on Parts or Equipment Replacement:
•It is at the sole discretion of Kongsberg Mesotech Ltd. to either repair or replace
any unit/part that fails within the limits of the Warranty Policy.
•The Warranty Policy is only valid on new equipment
•Replacement of parts, components, and/or PCB Boards during a warranty repair
does not extend the original warranty period.

974-24007001/3.0 FS 70 Operators Manual
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Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
Consumable Materials:
•Consumable materials, such as lamps, fuses, O-rings, gaskets and batteries, will
not be replaced free of charge.
Warranty Service:
•Warranty service is available worldwide through authorized Kongsberg Group
Companies, Simrad Distributors, Dealers or Agencies. When requesting warranty
service, you must supply the following information:
1. Proof of purchase.
2. Equipment part number and serial number.
3. Fault description and all relevant vessel information.
•Labour cost for the repair or replacement of any products/equipment and/or
module/parts is the responsibility of the servicing agent or dealer.
•All customs duties, brokerage charges ocal taxes, overtime, expenses for meals,
tools, launch services, ferries, lodgings, normal adjustments and routine
maintenance are not covered by this warranty policy.
DISCLAIMER
•Maximum liability shall not, in any case, exceed the contract price of the products
claimed to be defective.
•Consequential damages including, but not limited to, any loss of profit, property
damage or personal injury, are not covered by the warranty policy.
•This equipment is not certified or approved for navigation and/or safe-navigation
practices, and is not to be used for navigation purposes under any
circumstances.

FS 70 Operators Manual 974-24007001/3.0
List of Contents Page 3
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
LIST OF CONTENTS
Part 1......................................................................................System Familiarization
Part 2.......................................................................................... Theory of Operation
Part 3...................................................................................FS 70 System Operation
Part 4..................................................... FS 70 Installation, System Set-Up and Test
Part 5....................................................................Troubleshooting and Maintenance
Part 6...................................................................................Drawings & Attachments

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Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada

FS 70 Operators Manual 974-24007001/3.0
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Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
MODIFICATION RECORD
FS 70 OPERATORS MANUAL
974-24007001
Issue: 3.0
January 2009
Issue No. Date Initial Comments
1.0 01.06 L.F First release
2.0 01.07 L.F Second release
______3.0_________01.09________ L.F________Third release_______________
To assist us in making improvements to the product and documentation,
Kongsberg Mesotech welcomes comments and constructive criticisms.
Please send all such comments, in writing or by E-mail, to:
Kongsberg Mesotech Ltd.
Documentation Department
1598 Kebet Way
Port Coquitlam, BC V3C 5M5
Canada
E-Mail: [email protected]

974-24007001/3.0 FS 70 Operators Manual
Page 6 List of Contents
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada

FS 70 Operators Manual 974-24007001/3.0
System Familiarization Page 1.1
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
PART 1
SYSTEM FAMILIARIZATION
1. SYSTEM FAMILIARIZATION...........................................................................1.3
1.1 OVERVIEW ...............................................................................................1.3
1.1.1 Equipment Configuration .......................................................................1.3
1.1.2 System Configuration.............................................................................1.4
1.1.3 Display Monitor ......................................................................................1.4
1.1.4 Processor Unit .......................................................................................1.4
1.1.5 Power /TTM Interface Module................................................................1.5
1.1.6 Deployment Housing Unit ......................................................................1.5
1.1.7 Jointing Tool...........................................................................................1.6
1.1.8 Catch Sensors .......................................................................................1.6
1.1.9 PI Sensors Option..................................................................................1.6
1.1.10 Depth & Temperature NMEA Output..................................................1.6
1.1.11 Trawl Cable, Winch and Block ...........................................................1.6
1.1.12 19” Rack Cabinet 9U,.........................................................................1.7

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Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada

FS 70 Operators Manual 974-24007001/3.0
System Familiarization Page 1.3
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
1. SYSTEM FAMILIARIZATION
1.1 OVERVIEW
The SIMRAD FS 70 Series is a third wire trawl monitoring system for pelagic and
bottom fishing trawlers. The system provides real time images from the trawl sonar
head and data from the sensors to the bridge, thus maximizing the quality of the
catch and reducing sea time.
The FS 70 vertical trawl sonar allows the operator to see the complete net opening
and operation by displaying individual fish targets in the vertical plane, the fish
school location, bottom/net location and net geometry. In addition to the vertical
monitoring, the FS 70 also allows the operator to measure the spread of the trawl
door, view and skim banks to avoid reefs and locate boulders on the ocean floor that
may damage the trawl net.
The 200kHz Echo Sounder capability ensures maximum control of the foot rope
during the tow. The active motion sensor for pitch and roll comes as a standard
feature.
The addition of the trawl system’s sensor module will allow the operator to monitor
trawl depth, water temperature and receive information from up to 6 catch receivers
indicating when the cod end fills up with fish.
The FS Trawl Sonar Series is a modular system. It is operated with ease through
direct access Mouse and Keyboard operated menus. The major benefit of the third
wire trawl sonar system is that it prevents the loss of communication with the trawl
as the vessel is changing course.
1.1.1 Equipment Configuration
A complete Trawl Monitoring System consists of:
•Simrad LCD or VGA display monitor. (optional)
•FS 70 Processing Server Industrial Unit.
•FS PWR/TTM Interface Module, 19” Rack Mounted 3U
•FS 70, Vertical Sonar Head 120kHz, or 330kHz, C/W 200kHz Sounder
•40kHz or 70kHz Catch Sensors
•Integrated Pitch and Roll Motion Sensor
•FS 70 Deployment Housing and Installation materials
•Industrial 9U, 19” Rack Cabinet, c/w with fans and glass door, (optional)
•Industrial UPS 19” Rack mounted 2U, 120Vac or 230Vac, (optional)
Refer to Part 6 “Attachment” for full Configuration Overview

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Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
1.1.2 System Configuration
9 U
2 U
30m.VGA Extender Cable c/w K & M,
120 or 230 AC Power
Input
LCD
Monitor
LCD
Monitor
KB & M
FS 70 TRAWL Monitoring
Integrated System Configuration
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
FS 70 Head Trawl unit
System Standard Equipments
3 U, 19" Rack Power/TTM c/w Front Test Cable Connection
1 U, 19" Rack Industrial Processing Unit
3 U, Expansion Space for Future Development
2 U, 19" Rack APC, 1500 UPS
Rack Cabinet Description
Cabinet, W 23.6", (600mm), D 23.6", (600mm) H 19.8", (502mm)
Dual 6" Ventilation Fan & Bracket
30m VGA Video Extender Cable c/w KB & Mouse
30m VGA Video extender Cable for Dual Monitor
Slide Rails
Glass Door
All Mounting Hardware Included
Refer to your price list for additional information
3 U
3 U
SIMRAD Power/TTM 30m.VGA Extender Cable 120 or 230 AC Power
Input
TS15 S Head
FS 3300 Sensor
or
1 U
Rack Integrated System Cabinet
Door Spread
Hydrophone
1
2
PI Door Sensors
1
2
4
3
1
3
2
4
PI Catch Sensors
40kHz or 70kHz
Catch Hydrophone
Catch Sensors
70kHz Only
1.1.3 Display Monitor
The display monitor for the FS 70 can be a VGA ruggedized LCD monitor but any
commercially available VGA monitor may be used. This is in order to have the full
benefit of high resolution provided by the video Multi-Display adapter available with
the FS Processors.
1.1.4 Processor Unit
The FS 70 19” Rack mounted Industrial Processing unit is the control unit for the
system. The installed FS 70 system software provides a mechanism for the sonar
head detection, setup and operation. It is operated through the Main Control panel to
enable the Sonar selection, tilt, range, gain, cursor, and by moving the mouse
pointer over the toolbar will allow the operator to perform certain operations with a
simple Right or Left mouse click.

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System Familiarization Page 1.5
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
The sector heading and width are also controlled by a single mouse click used to set
the center of the area to be scanned and the width of the sector scan (up to 360°) in
the polar mode.
The rear panel of the Processing unit contains the connectors for AC power, Dual
Monitor port, one Serial port and several USB ports, Keyboard, Mouse, Printer, and
Network port. The Network port can be used to connect the remote workstation.
Note: A security key (or “dongle”) must be attached to a USB port to enable full
operation of the system.
1.1.5 Power /TTM Interface Module
The FS 19” Rack mounted Power/TTM interface Module unit provides the high
voltage required by the trawl sonar. The DC output voltage is combined with the
telemetry signals and supplied to the trawl sonar.
The power voltage supplied to the sonar head and current are monitored by voltage
and current meters. A selector switch located below the voltage meter can be used
to select the output voltage of the power supply required for the appropriate system
configuration. Also, a separate on/off switch is located in the front panel. Note: The
main on/off switch and fuse are located on the rear panel of the TTM Module.
The Power/TTM Interface provides translation between the Processing Unit Serial or
USB port and the sonar telemetry communication protocol.
A Test Cable connector and selection switch between the trawl cable and Test cable
are provided in the front panel, eliminating having to disconnect the 3rd wire cable
from the rear of the TTM.
1.1.6 Deployment Housing Unit
The trawl deployment housing unit is made from polyurethane and designed for the
harshest of environments yet it is easy to handle. The FS 70 trawl unit sits within the
deployment housing unit and contains the vertical sonar head, catch hydrophone
receiver, the optional forward hydrophone, the echo sounder 200kHz transducer and
depth and temperature sensors. The mounting kit supplied contains the strain relief
cable gland and other hardware used to attach the trawl cable to the trawl headrope.
The trawl cable is connected to the trawl sonar by a watertight connector and a
locking sleeve. Commands are sent down the cable from the processors to operate
the sonar. The sonar image and sensor data are sent up the cable to the processor
and displayed on the appropriate monitor.

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Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
1.1.7 Jointing Tool
Jointing tools and materials are required for splicing the trawl cable and attaching the
trawl “2 pin pigtail” connector to the trawl sonar. We recommend using 3M 72-N1
jointing tool kits that can be purchase locally and especially designed for coaxial
cable with a breaking point of 1500kg. The jointing kit will allow you to make 1 cable
joint.
Note: Proper joining and crimping sleeve will be required based on the type of 3rd
wire you are using.
1.1.8 Catch Sensors
The catch sensor “eggs” are wireless sensors mounted on the cod-end of the trawl
net to detect the stretch of the net as it fills up with the catch. When sufficient stretch
of the net occurs, the catch sensor sends an acoustic signal to the trawl sonar
through the catch receiver.
This information is then sent to the processor and displayed on the monitor.
The sensors are of a rugged construction in order to withstand the strain from
winches and the power block. The operator can use up to six sensors (with the
40kHz system) simultaneously. The catch sensors are equipped with rechargeable
batteries.
1.1.9 PI Sensors Option
The FS 70 provides full integration with the PI System, Door Spread, Bottom
Contact, Rip Sensor and Cod End Depth Sensor available from Simrad Horten AS.
1.1.10 Depth & Temperature NMEA Output
The FS 70 processing Unit can be configured to output NMEA 183 data information.
The integrated sensor module is included in the sonar head. The depth and
temperature outputs are transmitted to the processor and displayed on the monitor.
When interfaced to other Simrad echo sounders, the headrope depth information
appears on the sounder showing the location of the trawl in relation to the fish or
bottom returns.
1.1.11 Trawl Cable, Winch and Block
The trawl cable is chosen for maximum mechanical strength, durability and minimum
attenuation of the signals. Cables in common use are coaxial with breaking points of
1500kg and 6000kg.

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Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
Cable winches are delivered in different types and with different capacities; low-
pressure hydraulic, high-pressure hydraulic and electrically driven. Choice of winch
is dependent on prevailing conditions; type and length of cable and available source
of power. Most types operate automatically - the cable is pulled out, kept tight during
towing, and hauled in together with the trawl. Control of the winch is done remotely
from the bridge.
Any commercially available pulley block may be used to properly align the cable onto
the winch. A snatch block has the advantage that it may be installed without having
to thread the cable through it. A unit with two movable steering arms (one on each
side of the pulley) is recommended to prevent the cable from coming off the pulley
and causing damage to the cable.
1.1.12 19” Rack Cabinet - 9U,
The Industrial Ventilated Rack Cabinet with a rugged black powder paint finish is an
ergonomic design with ventilated slots front and side. The pre-punched top allows
the installation of 2 fans. Cable accesses are available from the top or bottom.
The cabinet includes two pair of mounting rails, smoked glass door with full 180
degrees opening for easy access to the rack mounted equipment.
The overall dimensions are 19.8” (502mm) height, 23.6” (600mm) width, 24.0”
(600mm) depth.

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Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada

FS 70 Operators Manual 974-24007001/3.0
Theory of Operation Page 2.1
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
PART 2
THEORY OF OPERATION
2. THEORY OF OPERATION...............................................................................2.3
2.1 INTRODUCTION.......................................................................................2.3
2.1.1 Basic Principles......................................................................................2.3
2.1.2 Determining Target Position ..................................................................2.3
2.1.3 Forming an Image..................................................................................2.3
2.1.4 Key Feature Setting ...............................................................................2.4
2.1.4.1 AGC................................................................................................2.4
2.1.4.2 RCG................................................................................................2.4
2.1.4.3 RX Gain Response and Type.........................................................2.5
2.1.4.4 Pulse Length Control ......................................................................2.5
2.1.4.5 Optimize Resolution........................................................................2.5
2.1.4.6 Maximize Range.............................................................................2.5
2.1.4.7 Peak Detection ...............................................................................2.6

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Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada

FS 70 Operators Manual 974-24007001/3.0
Theory of Operation Page 2.3
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
2. THEORY OF OPERATION
2.1 INTRODUCTION
This section explains the theory of operation of the Vertical and Sounder Scanning
Trawl Monitoring Sonar System.
2.1.1 Basic Principles
•Sound waves travel very efficiently through water.
•A sound pulse can be projected through water in a controlled direction with the
sonar transducer.
•An object in the path of the projected sound pulse will reflect some sound pulses
back toward the sonar transducer.
•The speed of the sound pulse projected through the water can be predicted for
given conditions.
2.1.2 Determining Target Position
The trawl scanning sonar processor measures the time from the start of the sound
pulse projected through water, to the reception of the sound pulse reflected back to
the sonar transducer. The measured time is then converted to distance by using the
value of sound speed through water.
Since the sound pulse is projected in a known direction, the bearing of the reflected
object is also known. This makes it possible to locate the object with respect to the
sonar transducer; the information will be used to plot the position of the reflected
target on a video graphic display monitor.
2.1.3 Forming an Image
The sound pulse projected will be attenuated as it travels through the water from the
transducer to the target and back. Much of this attenuation is a predictable function
of the total time or the distance the sound pulse traveled through water. Increasing
the receiving gain with time can compensate for this decrease in the signal level.
This is done automatically in the sonar with a Time Varying Gain (TVG) circuit.

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Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
After the TVG correction, the absolute levels of the received signals will be
determined by the acoustic response of the reflecting target.
The sonar processor system repeatedly measures the TVG corrected target levels
by digitizing a sequence of samples after each sound pulse transmission. Each
sample is then plotted on the video display at the appropriate position according to
its range and bearing. The level of the target strength sample determines the color
used to plot each sample.
The process can be repeated with the transducer pointed in different directions,
forming an image of a large area of the bottom, (or the trawl net geometry) and
displaying it on the video screen.
In simple words, the TVG function controls the gain of the receiver so that a school
with a given size and density is presented with approximately the same strength on
the display, inside the regulated TVG range.
2.1.4 Key Feature Setting
The following paragraph will explain some of the key features of the FS 70 System.
2.1.4.1 AGC
Automatic Gain Control (AGC)
The AGC “Automatic Gain Control” algorithm increases the gain during low acoustic
returns and reduces the gain during strong acoustic returns. The speed with which
the gain is adjusted is determined by the setting of the “RX Gain Response”
2.1.4.2 RCG
Reverberation Controlled Gain (RCG)
The RCG filter senses the noise level (reverberation, propeller noise, etc.), and
adjusts the gain of each of the received beams in order to eliminate noise on the
display. The strength of the filter can be selected in the menu. With maximum
strength selected, the RCG will effectively reduce the bottom in shallow water, while
variation on the bottom will be displayed.
Note that scattered fish can be perceived as reverberation. The RCG filter must be
used with care if scattered schools are to be detected.