FS 70 Trawl Sonar System Operator Manual SIMRAD Kongsberg Mesotech Ltd.
974-24007001/4.1 FS70 Trawl Sonar System Operator manual 974-24007001/4.
FS70 Trawl Sonar System Document revisions Version 4.1 Date Written by Checked by Approved by January 04, 2011 LF/BC JH BC About this document The information contained in this document is subject to change without prior notice. Kongsberg Mesotech Ltd. shall not be liable for errors contained herein, or for incidental or consequential damages in connection with the furnishing, performance, or use of this document. © 2010 Kongsberg Mesotech Ltd. All rights reserved.
Table of contents 1 SYSTEM FAMILIARIZATION ............................................................................ 1 1.1 Overview ............................................................................................................. 1 1.2 Equipment List ....................................................................................................2 1.3 Typical System Configurations .......................................................................... 2 1.4 Display Monitor ............
FS70 Trawl Sonar System 3.2.5.1 PI 40 kHz Channel Sensors Setup ........................................................... 18 3.2.6 PI 40 kHz Sensors Receiver Setup ................................................................. 19 3.2.7 PI 40 kHz Sensors Activation Menu .............................................................. 20 3.2.8 PI 70 kHz Sensors Activation Menu .............................................................. 21 3.2.9 Advanced Panel Page .............................
5 4.3.1 FS Processor & TTM Communication set-Up ............................................... 39 4.3.2 Optional Ethernet Processor System Set-Up .................................................. 39 4.3.3 Security Firewall Protection System Set-Up .................................................. 43 4.3.4 Start Up ........................................................................................................... 44 4.3.5 Power-Up Configuration ...........................................
FS70 Trawl Sonar System 5.3.2.3 Connector Maintenance........................................................................... 67 5.3.2.4 Excessive Impacts ................................................................................... 67 5.3.2.5 Corrosion ................................................................................................. 68 5.3.2.6 Shaft or Transducer Damage ................................................................... 68 5.3.
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FS70 Trawl Sonar System X 974-24007001/4.
System Familiarization 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 information from the trawl sonar head and the associated sensors to the bridge, thus maximizing fishing efficiency and reducing sea time.
FS70 Trawl Sonar System 1.2 Equipment List A typical FS70 Trawl Monitoring System consists of: FS 70 Deployment Housing FS 70, Vertical Sonar Head 120kHz, or 330kHz, 200kHz Sounder Transducer 40kHz or 70kHz Catch Sensors FS PWR/TTM Interface Unit USB/RS232 or optional Ethernet/RS232 converters FS 70 PC based Processing Unit. LCD display monitors. 1.
System Familiarization FS70 - 40 kHz System Configuration Overview RS232 or USB/RS232 Test cable Or 3rd Wire FS70 Software c/w FS70 Dongle SIMRAD POWER / TTM FS Power / TTM Interface Unit FS70 Sonar (120 or 330 kHz) 40 kHz PI/PS sensors (max.
FS70 Trawl Sonar System 1.5 Processor Unit The FS 70 19” Rack mounted Industrial Processing unit is the control unit for the system. 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 Ethernet port can be used to connect the remote workstation or connect with the factory for remote service support.
System Familiarization A test cable connector and selection switch between the trawl cable and test cable are accessible on the front panel, providing quick access for a test cable without disconnecting the 3rd wire cable from the rear of the TTM. 1.7 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.
FS70 Trawl Sonar System 1.9 Catch Sensors The catch sensor “eggs” are wireless sensors mounted on the codend 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 is triggered and sends an acoustic signal to the trawl sonar through the catch receiver. The information is then sent to the processor and displayed on the monitor.
System Familiarization 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.
FS70 Trawl Sonar System 2 THEORY OF OPERATION 2.1 Introduction This section explains the theory of operation of the Vertical and Sounder Scanning Trawl Monitoring Sonar System. 2.2 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.
Theory of Operation 2.4 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 travelled 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.
FS70 Trawl Sonar System 2.5 Key Features Setting The following paragraph will explain some of the key features of the FS 70 System. 2.5.1 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” 2.5.
Theory of Operation 2.5.4 Pulse Length Control The FS 70 Trawl Sonar Heads are capable of changing the acoustic pulse length that is transmitted. The surface processing unit sets the pulse length based on the operating range of the sonar head. It is generally better to use a longer pulse as the operating range increases.
FS70 Trawl Sonar System 3 FS 70 SYSTEM OPERATION 3.1 Introduction The typical screen display for FS 70 Sonar Processor consists of a tabbed Control Panel that allows changing the settings and operating parameters of the FS70 System, resizable display areas for the Sonar Head, Sounder and Message Log, a floating dockable Sensor Panel to monitor the sensors status, toolbars for quick access to various functionalities and a status bar to monitor the system status.
FS 70 System Operation This chapter describes the navigation through the menu system and explains the adjustments to the menu settings that may be made to control the sonar operation 3.2 Control Panel The Control Panel allows adjustments to several system parameters without having to access a menu system. To minimize clutter the control items available Control Panel are grouped into tabbed pages according to functionality. Items that lead to dialog boxes are shown in the “Advanced Menu”.
FS70 Trawl Sonar System The Sonar Control Panel located above is divided into 7 tabbed Pages: Page 1 “Operation”, Page 2 “Display”, Page 3 “Setup”, Page 4 “Settings”, Page 5 “Sensors Control”, Page 6 “Receiver Setup” and Page 7 “Advanced”. Each page allows you to change the system parameters. To change the value of a system parameter, move the mouse up or down until the desired button is highlighted and click the left mouse button or right mouse button to activate the new setting.
FS 70 System Operation 3.2.2 Display Control Panel Page The main Display” control panel allows you to select the display settings for the active sonar. To change the value of the system parameter just left or right click the mouse over the button you have selected, move the mouse up or down until the desired button is highlighted and click the left mouse button or right mouse button to activate the new setting. 3.2.3 Setup Control Panel Page 974-24007001/4.
FS70 Trawl Sonar System The main “Setup” control panel allows you to set up system parameters for the active sonar. To change the value of the system parameter just left or right click the mouse over the button you have selected, move the mouse up or down until the desired button is highlighted and click the left mouse button or right mouse button to activate the new setting. 3.2.
FS 70 System Operation By placing the mouse cursor on the “Setup Fish Sensors” button and then left clicking the mouse, the Fish Sensor Window will pop up as indicated on the following page. Move the mouse cursor up or down to select the sensor you want to select and then left click the mouse on the appropriate selection to activate the mode of operation. By placing the mouse cursor on the “Sensors Panel” button and then right clicking the mouse a drop down menu will appear.
FS70 Trawl Sonar System 3.2.5.1 PI 40 kHz Channel Sensors Setup 18 974-24007001/4.
FS 70 System Operation The next step after the above operation, for example, will be to add a catch sensor. Click on “sensor 5”; next select Door Spread or catch #2; next you would select the channel of operation, in this case you would have selected #2. If you are adding for example a temperature sensor you can setup an offset. See the windows above for the example. Note: For additional information on the Simrad PI Setup, please refer to your PI Instruction Manual. 3.2.
FS70 Trawl Sonar System NOTE: For additional information on the Simrad PI Sensors Setup, please refer to your PI Instruction Manual. NOTE: The PI sensor setup menus are not available if you are using a 70 kHz Catch Sensors system. 3.2.7 PI 40 kHz Sensors Activation Menu The main “SENSORS ACTIVATION MENU” control panel allows you to select the sensors you want to turn ON or OFF.
FS 70 System Operation NOTE: The PI sensor setup menus are not available if you are using a 70 kHz Catch Sensors system. Refer to the following section for the 70 kHz Catch Sensors activation setup. 3.2.8 PI 70 kHz Sensors Activation Menu 974-24007001/4.
FS70 Trawl Sonar System The Catch Sensor windows will be displayed automatically when you left click on the Catch Window button located on the Sensors Page. To activate or de-activate individual Catch Sensors click on the appropriate button. When you activate a Catch Sensor the sensor information is automatically displayed in the Control Panel. 3.2.9 Advanced Panel Page The main “Advanced” control panel allows you to select the sonar you want to control.
FS 70 System Operation 3.2.10 Advanced Operation TVG Mode Example of some of the controls located in the Advance panel By placing the mouse cursor on the mode button and then right clicking the mouse a drop down menu will appear. Move the mouse cursor up or down to select the TVG mode of operation you want to select and then left click the mouse on the appropriate TVG selection to activate the mode of operation. 3.2.
FS70 Trawl Sonar System The Toolbar will automatically pop-up on the left side of the screen. Move the mouse cursor up or down to select the RECORD mode of operation you want then left click the mouse to activate the recording. 3.2.12 Record Selection When the RECORD mode is activated the following windows will appear. Click on the “Select File” and type the name of the file you want to record. Next click OK. 24 974-24007001/4.
FS 70 System Operation 3.3 Display Tools Selection By placing the mouse cursor on the TOOLS button and then right clicking the mouse, a drop down menu will appear. Move the mouse cursor up or down to select the TOOL of operation you want to select. Next left click the mouse on the appropriate TOOL selection to activate the operation. 3.4 Depths and Temperature Graphs To activate the Depth or the Temperature graphs you must right click the mouse on the center of the sonar image.
FS70 Trawl Sonar System NOTE: Additional information from the above menu can also be displayed. 3.5 Language Selection By placing the mouse cursor on the Language button and then right clicking the mouse a drop down menu will appear. Move the mouse cursor up or down to select the language of operation you want to select and then left click the mouse on the appropriate selection to activate the language of operation. 3.6 Audio Set-up 26 974-24007001/4.
FS 70 System Operation Right Click on the “AUDIO” button located in the SETUP Page to open the Audio Settings dialog window. After you have completed your changes click “Apply”. If you are satisfied with your selection Click “OK” Next, go to the “Operation Page” to turn OFF or ON the Audio. 3.7 Activating the Sonar When you click on the Run button the system will initialize the serial port. and start the calibration of each sonar head connected to the TTM module.
FS70 Trawl Sonar System NOTE: If you only want to “PAUSE” the sonar image, just right click the mouse on the Sonar “Run/PAUSE” Button located on the Operation Page. Left click the mouse to “RUN” the system. 28 974-24007001/4.
FS 70 Installation Instructions 4 FS 70 INSTALLATION INSTRUCTIONS 4.1 Installation procedure The installation of the FS 70 Trawl Monitoring System involves the following steps: • Deciding on the locations in the wheel house for the surface units. • Mounting the surface units and making the connections between the FS 70 Processor, the display unit, the FS Power Supply/TTM interface unit, and other optional equipment being installed. • Assembling the trawl unit.
FS70 Trawl Sonar System If you have not selected the Rack Mounted System, the FS 70 Processing unit should be mounted in close vicinity to the operator's position in the wheel house and near the display unit. The unit may be mounted on top of the bridge console or recessed into a cabinet. Note: You must have access to the ON/OFF switch and provide proper ventilation to avoid overheating.
FS 70 Installation Instructions 4.2.3 Display Unit Either an LCD/DVI or VGA monitor may be connected to the FS 70 Processor. Depending on which type of monitor is used, the video output type must be set accordingly. An industry standard VGA monitor will connect directly to the miniature DB-15 connector located on the rear panel of the processor unit. The FS 70 Processor Unit has a Dual NVIDIA Quadro Video interface card installed as standard equipment.
FS70 Trawl Sonar System 4.2.5 Connecting the Processing Unit The FS 70 Processor unit comes with the FS 70 Trawl Sonar System operating software installed by the factory. NOTE: All Device drivers and utilities are preloaded on your system and provided on a Driver, Utilities and documentation CD-ROM. This CD-ROM also includes tips for re-installing the operating system.
FS 70 Installation Instructions 4.2.
FS70 Trawl Sonar System 4.2.8 Connecting the USB/RS232 to the TTM Unit Connect the 2 meter USB cable to the USB/RS232 Converter; next connect the USB side of the converter to one of the USB ports located on the PC and the RS232 connector to the Port “A” of the TTM unit. Note: The Port “A” of all TTM units is assigned for the Vertical Sonar Head, referred as “LF1” telemetry.
FS 70 Installation Instructions 4.2.9 Optional Ethernet Server Device Specification Your FS 70 Processing Unit may come equipped with an optional Network LAN interface adapter. The LAN Ethernet Server Devise adapter provides two (2) RS232 ports. Both ports support 10Mbit/s and 100Mbit/s operations and automatically detect which network type is being used. The RJ-45 plugs into your FS 70 workstation. LAN cables supplied with the system.
FS70 Trawl Sonar System 4.2.10 Connecting the Optional Ethernet Server Device to the TTM Unit Connect the supplied 3 meter LAN Ethernet cable from Ethernet server device to the Ethernet RJ-45 port located at the rear of the PC, next connect the supplied null modem cable from the Serial Output 1 of the Ethernet server device to the Port “A” of the TTM unit. Note: The Port “A” of all TTM units is assigned for the Vertical Sonar Head, referred as LF1 telemetry.
FS 70 Installation Instructions 4.2.11 Connecting a GPS The GPS NMEA 183 output can be connected to the serial port at the rear of the processing unit. The interconnect cable is not supplied. The pin connections for your GPS input/output PC/RS232 are as follows: Pin number “2” - 232 Rx, Pin number “3” - 232 Tx, Pin number “5” - GND. 4.2.12 Connecting a Echo Sounder The FS 70 Processor Unit may be connected to an echo sounder for display of the trawl unit depth on the sounder.
FS70 Trawl Sonar System 4.2.14 Connection to Cable Winch/Slip-Rings The connection between the FS TTM Interface unit and the cable winch/slip-rings should be made with a 12AWG or heavier, shielded pair cable. The connection to the control unit is made using the 3-pin MS connector supplied in the TTM module accessory kit. To minimize noise interference on the cable, the shield of the cable should be attached to the connector. NOTES: 1.
FS 70 Installation Instructions A locating block located at the end of the housing or a guide bracket is used to prevent the sonar head from rotating. Only one guide block is required and it can be placed into the positioning hole of the bottom half of the trawl unit housing as shown in the assembly drawing in Chapter 6. NOTE: Dow Corning “#55” grease must be applied to all mating surfaces of underwater connectors to insure proper sealing.
FS70 Trawl Sonar System Where “X” is a decimal number between 1 and 254, the number “0” and “255” are reserved numbers to set-up the static “IP” adresses. To set-up your computer Ethernet adapter “IP” address. On your computer desktop, click Start> Control Panel> next double left click on Network Connection. The following window below will pop-up. Right click the Ethernet interface “local Area Connection X” Next, left click on “Properties”. The following window below will pop-up. 40 974-24007001/4.
FS 70 Installation Instructions Next, scroll down to the “Internet Protocol (TCP9/IP) as indicated in the above window and left click on “Properties” The following window below will pop-up. Next, you will have to disable the “Obtain an IP address automatically” and select “Use the following IP address” The following window below will pop-up. 974-24007001/4.1 Next, enter the above IP address “192.168.000.70” and the Subnet mask ”255.255.255.0”.
FS70 Trawl Sonar System exited the above window, you should re-check to make sure the new IP address is saved. In order to check your new IP address is saved go to your task bar located it the lower right side of your screen, next double Click on the dual monitor Icon, then the Local Area Connection Status window will pop up. Next Click on “Support” to display the IP address as indicated in the above window. If all OK just close the above window. 42 974-24007001/4.
FS 70 Installation Instructions 4.3.3 Security Firewall Protection System Set-Up The Firewall protection is an important part of the processor unit. There is no problem in having the security protection disabled providing the processor in not connected to any outside provider “Ethernet” or connected to a central internal “Hub” system. We recommend that the “Firewall” protection be ENABLE at all times. The following chapter will explain the proper procedure to Disable/Enable the firewall protection.
FS70 Trawl Sonar System The best approach is by having the Firewall protection turn “On” at all time. Then after you have installed the FS 70 Host Software on your processing unit what will happen next will be when you start the FS 70 application the Security Alert Windows will be displayed as indicated below. By Clicking on “Unblock” the security alert will automatically setup an “Exceptions” as indicated in the window below. Note: No changes are required in the “Advanced” page 4.3.4 Start Up 1.
FS 70 Installation Instructions on the “200VDC” setting and approximately 60 volts if on “TEST” setting. The current meter should read approximately 0.15 – 0.7 amps. 3. Next turn on the display monitor, and then turn on the processing unit. The system will start up automatically. 4.3.5 Power-Up Configuration For the system to operate properly the trawl unit configuration must be selected correctly.
FS70 Trawl Sonar System 4.3.7 FS 70 Start-up Procedure For the purpose of demonstrating the Start-up Procedure in this chapter, we are using the recommended Processing Unit that has 2 COM Ports, COM 1 and COM 3. The COM 1 and COM 3 Ports from the Processing Unit are not connected to the FS TTM module RS 232 port “A”. No communication will be made from the COM 1 or COM 3 to the TTM module.
FS 70 Installation Instructions After the “Detect Heads” the above Window will pop up, note that no Com ports have been enabled yet (and re-check mark beside Com port). If you “Click” on “Detect Heads” from this position, the following warning window will pop up. This warning window indicates that “No Ports have been enabled”; just “Click” “OK”. 974-24007001/4.
FS70 Trawl Sonar System Next, the “System Configuration” window will reappear. Use the mouse to highlight KML-USB 1 or the Ethernet/Serial 1 if you are using the Ethernet Server Device. Use the mouse to “Enable for Head Control” (Left button click, check mark in box to enable). 48 974-24007001/4.
FS 70 Installation Instructions “Click” on “Apply”. The following window will appear, overlaying the above window, asking you to reboot the computer. Just “Click” “OK” and do not “Reboot the computer now”; “Click” “OK” in the “System Configuration” window. To start the system, from the Operating Panel, position the mouse to highlight “System Stop” located at the bottom of the panel, next, left Click on “Stop” and a “Off, Stop, Run and playback window will pop up.
FS70 Trawl Sonar System By clicking on the “Vertical Window” of the Sounder Window you will have control over the selected Sonar. The sonar you have selected will be highlighted by a blue bar across the top. 4.3.9 Advanced Menu Display Settings Position the cursor on the “Display Settings” Icon, and Click. The window below will pop up. By selecting the appropriate “Key”, you will be able to setup your Colours, Controls Setting and the Head Sensors.
FS 70 Installation Instructions By clicking on the appropriate key, you will be able to setup your control setting, i.e. Gain Control, RX Gain, Scan Marker, etc. 4.3.11 Head Sensors Setting By selecting and clicking on the “Head Sensors” key on the following window will pop up. 974-24007001/4.
FS70 Trawl Sonar System By clicking on the appropriate key, The Depth and Temperature range can also be changed. 4.3.12 FS 70 Head Setting Position the cursor on the “Control Head” Icon, and CLICK. The window below will pop up. By clicking on the appropriate “KEY”, you will be able to setup your Scan option. You also have full control of the Scan mode via the operator control panel. 52 974-24007001/4.
FS 70 Installation Instructions 4.3.13 Transmit Setting By selecting and clicking on the “Transmit” key on the above window, the following window will pop up. 974-24007001/4.
FS70 Trawl Sonar System By clicking on the appropriate key, you will be able to setup your Transmitter configuration in order to optimize fish detection. The same operation will apply to the FS Sounder Window. 4.3.14 System Info By selecting and clicking on the “INFO” key on the above window, the following window will pop up. This INFO page will provide you with all the relevant information on the sonar head attached to the system. 54 974-24007001/4.
FS 70 Installation Instructions 4.3.15 TVG Page Setting By selecting and clicking on the “TVG Page” key on the above window, the following window will pop up. By clicking on the appropriate key you will be able to set up your TVG setting. You also have the option of customizing your TVG setting for a specific fishery. The same operation will apply to the FS Sounder Window. 974-24007001/4.
FS70 Trawl Sonar System 4.3.16 Sensors Page By selecting and clicking on the “Sensors Page” key on the above window, the following window will pop up. This Sensors Page will provide you with all the relevant information on the sonar head attached to the system. Note that the Tilt Sensor filters and Offset are not applicable for the FS70 system. 56 974-24007001/4.
FS 70 Installation Instructions 4.3.17 Auxiliary Transducer (Net Sounder) By Clicking on the “Auxiliary Transducer” key on the above window, the following window will pop up. By clicking on the appropriate key, you will be able to control the FS Sounder option. NOTE: The Auxiliary Transducer window is only applicable to the FS Sounder. 974-24007001/4.
FS70 Trawl Sonar System 4.3.18 Save User setting After you have completed your system configuration, you should “SAVE” your setting. Go to the User Menu and click on “Save Setting”. The following window will pop up. Type the name of the “New Setting Name” by using the pop up keyboard, next Click “OK” 58 974-24007001/4.
FS 70 Installation Instructions 4.3.19 Add User Setting After you have completed your system configuration you should save your setting, Go to the Header Menu and click on “Configuration”. Next click on “USERS”, then Click on “DEFINE”. The following window will pop up. If you want to Add a User, the next step is to click “Add” then type your name in the User 1 window. Next click on “Apply” then “OK”. The next time you start up the system, the “Select User” window will pop up automatically.
FS70 Trawl Sonar System 4.3.20 Final System Test After preparing the trawl cable and before the final trawl unit assembly a system test should be conducted to insure correct operation of the FS 70 Trawl Monitoring System over the trawl cable. As before, the start- up procedures should be followed to power up the system. Once the FS 70 has been turned on, the power supply voltage and current meters should be examined. Expected values are 0.2 – 0.
FS 70 Installation Instructions The plastic strain relief attached to the trawl cable is now placed in the trawl unit housing containing the electronics and the excess cable is routed in the housing. Care must be taken to insure that all cables within the trawl unit housing are properly placed to avoid being pinched and possibly damaged. The top half of the trawl unit housing is then placed on top and the two halves are secured together with the bolts supplied.
FS70 Trawl Sonar System 4.3.23 Mounting the Geometry Sensors 62 974-24007001/4.
FS 70 Installation Instructions The PI Geometry sensors are mounted behind the headrope at the top of the trawl opening, or behind the footrope at the bottom depending on the required application. The two Mini-R responders are normally mounted in dedicated adaptors on the two doors. They may also be mounted on the trawl wings.
FS70 Trawl Sonar System 5 TROUBLESHOOTING AND MAINTENANCE 5.1 Introduction This section provides instructions for the proper handling, maintenance and troubleshooting of the FS 70 Trawl Monitoring System. 5.2 System overview The Simrad FS Trawl Monitoring System FS 70 consists of wheelhouse electronics and a trawl unit. The wheelhouse electronics include the display unit, the FS Processing Unit, and the PWR/TTM interface unit.
Troubleshooting and Maintenance 1. Trawl cable and/or winch slip-ring problems, 2. Sonar head and sensor module connector and interconnect cable failures, 3. Excessive impacts and/or physical damage to trawl unit electronics. In all three cases, proper handling and maintenance can significantly reduce the frequency of FS failures. The following sections outline the recommended handling and maintenance for the FS system. 5.3.
FS70 Trawl Sonar System connector mating surface must be protected from moisture and dirt at all times. Failure to do this may result in water damage to the cable causing improper operation of the sonar system. 5.3.2.2 Maintenance Schedule For optimum performance and trouble free operation, follow the maintenance schedule below. Beginning of Fishing Season Service all connectors Every Two Weeks of Continuous Use The trawl unit package should be opened and the components cleaned with fresh water.
Troubleshooting and Maintenance 5.3.2.3 Connector Maintenance Proper connector maintenance is crucial to the prevention of connector failure that may result in failure of the sonar system and possible water damage to the sonar head. The following steps should be taken whenever the connectors are assembled, or at regular intervals as outlined in the “Maintenance Schedule” section above. 1. Wipe connectors clean of old grease and dirt with a lint free cloth. 2.
FS70 Trawl Sonar System NOTE: As with all electronics, careful handling of the trawl unit will reduce the likelihood of FS failures. 5.3.2.5 Corrosion If on examination corrosion has occurred to the sonar head metal parts these areas should be cleaned well and the area sealed with paint or a sealant to prevent continuation of the corrosion in this area. WARNING: If corrosion is allowed to continue, flooding of the unit may result. 5.3.2.
Troubleshooting and Maintenance 5.3.4 Winch Slip-Rings and Trawl Cable The winch slip-rings and trawl cable are the umbilical cord between the processor unit and trawl unit electronics, and are critical to the proper operation of the Simrad FS Trawl Monitoring system. Damaged, worn or poorly maintained cable or slip-rings will degrade the performance of the system and may cause or lead to a complete system failure.
FS70 Trawl Sonar System 5.4 On-board System Troubleshooting There are a number of tools available with the FS Trawl Monitoring system that allows its performance to be checked. When these tools are utilized as part of the regular maintenance they provide information about the state of the system and allow it to be monitored. This can be valuable in detecting problems before they cause an FS system failure.
Troubleshooting and Maintenance 5.4.2 Test Cable With every FS Trawl Monitoring system a 50’ test cable is supplied for testing the system without requiring the 3rd wire trawl cable. This provides a quick and simple way of verifying whether problems are due to the trawl cable or winch slip-rings. NOTE: The initial system performance values that are measured on the test cable during the installation and commissioning of the system provide a base for later comparison. 5.4.
FS70 Trawl Sonar System A test for slip-ring problems is to slow down the winch (at high winch speeds you will not see jitter on the current meters) and check if the current meter is jittering and whether the jitter rate changes with the winch speed. Note: The current meter will pulse each time the transmitter pings. The pulse will be at a constant rate depending on your operating setting. 2.
Troubleshooting and Maintenance 5.4.5 Testing the Trawl Cable If after testing the FS system the trawl cable is suspected to be faulty, then troubleshooting is needed to determine what and where the problem is. For problems that are not obvious, however, this can be quite difficult to do and may require someone experienced with testing trawl cables. This following paragraph provides some basic tips in troubleshooting trawl cables but is in no way a complete and comprehensive guide. 5.4.5.
FS70 Trawl Sonar System Signal Attenuation Through Cable: <40 dB (1/100 signal amplitude) @ 55 kHz <20 dB (1/10 signal amplitude) @ 12 kHz The cable closed loop resistance determines the maximum voltage drop along the trawl cable. For proper operation the FS 70 trawl unit electronics require a supply voltage of 60 to 200 VDC. For typical operation, the current is approximately 195 mA to 250 mA with peaks to 450 mA.
Troubleshooting and Maintenance Example: The TTM output DC voltage is set at 200 VDC. The Cable Voltage at the head is 192.7 VDC Total DC voltage drop along the 3rd wire cable is 7.3 VDC. The TTM AMP meter located on the front panel indicate a current of 0.3 A. Therefore the calculated total resistance of the 3rd wire cable is: R= – The maximum allowable closed loop cable resistance is 100 ohms. 5.4.5.
FS70 Trawl Sonar System 5.4.6 Telemetry Errors In the normal operation of the FS Trawl Monitoring system commands are sent from the processor unit down the trawl cable to the trawl unit electronics and acknowledgments are then sent back up to the processor unit. Some error checking of these commands is performed to monitor the performance of the Uplink and Downlink telemetry.
Troubleshooting and Maintenance 5.4.8 System Info Page The System Info Page provides all the pertinent information required by the factory in order to assist you in troubleshooting the FS system on-board the vessel. 5.4.9 Bitmap “Snapshots” Sonar Image The system will allow you to save snapshots of the screen display. In the lower right hand corner of the display you will see the following display. 974-24007001/4.
FS70 Trawl Sonar System To take a snapshot of your display simply left click on the camera icon. A snapshot will be saved in the “diagnostic” folder. When you click the camera icon a grey message box will appear in the top left hand side of your display stating ”Saving a sonar image. Please wait.” This box will only appear for a second or two but confirms that you have taken a picture and that it has been saved.
Troubleshooting and Maintenance 5.4.11 Automatic Recordings The system is also automatically recording your display without the need for you to do anything at all. The reason for this background recording is to ensure that should you experience difficulties or an error the system will have kept a recording of it for future analysis. This file can then be sent to your service organization for analysis.
FS70 Trawl Sonar System Record folder: Any recordings that you manually start All of these files are date and time stamped so you will know exactly when they occurred. If you have experienced a problem with the system you want to ensure that the auto recording of the event will not be overwritten. In this event you want to simply move the file from the “diagnostic” folder and place it into a folder where you will easily be able to find it.
Troubleshooting and Maintenance 5.4.14 Troubleshooting Problems The first step in troubleshooting the problem would be to retrieve the “Errors” message log file located in the KLM directory as indicated in paragraph 5.4.12. The errors log file will provide some information of what when wrong with the system. The next step is to understand the “Power up Sequence of Events” when you power up the FS system. By understanding the system sequence of events it will help you in diagnosing where the problem may be.
FS70 Trawl Sonar System 5.4.16 Host FS70 Software Start-up Sequence of Events In this section we will be addressing the telemetry communication and highlighting the action/problems and the possible causes. What happens when you start up the host software? When you start up the FS host software you are establishing “Digital” communication with the TTM boards located inside the Power/TTM unit.
Troubleshooting and Maintenance the values being uplinked and re-written back to the DACs. The final values written to the DACs directly represent what we refer to as the “Cable Gain Numbers” i.e., example “6, 23” to compensate for the signal loss through the 3rd wire. The most important steps regarding the Downlink and Uplink communication between the host software, the TTM and the sonar head is completed.
FS70 Trawl Sonar System If no sensor information is displayed on the sonar image you may have a problem with the sensor controller board. If the internal sensors are displayed but no external sensors are shown then the problem may be with the catch hydrophone receiver or the associated circuits. If only some of the sensors are displayed you may have a problem with a specific sensor that was not detected. You will have to troubleshoot the problem.
Troubleshooting and Maintenance Sonar head operates correctly but the cable gain is higher than normal and telemetry errors may be present. Problem may be with the sonar head or the TTM interface unit. No sensor module data. Internal sensor module electronics is defective. No catch indication but Depth and Temp are OK. Ensure catch sensors are properly charged and display of catch data is enabled. Replace sonar head and repeat the test.
FS70 Trawl Sonar System 6 DRAWINGS Drawings List 86 436-00411000 - Test Cable 901-60181001 - FS power/TTM Outline Dwg 901-60181003 - FS Power/TTM Wiring Diagram 974-80161000 - FS 70 Housing Dwg (4 Dwgs) 974-24007001/4.
4-24007001/4.
FS70 Trawl Sonar System 88 974-24007001/4.
974-24007001/4.
FS70 Trawl Sonar System 90 974-24007001/4.
974-24007001/4.
FS70 Trawl Sonar System 92 974-24007001/4.
974-24007001/4.
FS70 Trawl Sonar System 94 974-24007001/4.
ANNEX A - FS SONAR TEST REPORT Boat Name: ________________________________ Head Type: ________________________________________________ Part Number: _______________________ Serial Number: ____________________ Sensor Module Type: _____________________________________________ Part Number: _______________________ Serial Number: ____________________ Cable Gain Cable / Pre-Reg.
FS70 Trawl Sonar System 96 974-24007001/4.
WARRANTY POLICY Effective January 1, 2010 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.
FS70 Trawl Sonar System 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.
2010 Kongsberg Mesotech SIMRAD
