Simrad FS20 Operator's Manual
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Simrad FS20 Operator's Manual

Simrad FS20 Operator's Manual

Real-time trawl imaging for efficient trawling
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FS 20/25 OPERATORS MANUAL
901-10037001
Issue 1.1
June 2002

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Summary of Contents for Simrad FS20

  • Page 1 FS 20/25 OPERATORS MANUAL 901-10037001 Issue 1.1 June 2002...
  • Page 3 Warranty on Parts or Equipment Replacement: It is at the sole discretion of Kongsberg Simrad Mesotech Ltd. to either repair or replace any unit/part that fails within the limits of the Warranty Policy.
  • Page 4 List of Contents 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.
  • Page 5 Part 3 .................. FS 20/25 System Operation Part 4 ............. FS 20/25 Installation, System Set-Up and Test Part 5 ................ Troubleshooting and Maintenance Part 6 ........................ Drawings Part 7 ......................Attachments Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 6 901-10037001/1.1 FS 20/25 Operators Manual Page 4 List of Contents Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 7 L.F. First Release To assist us in making improvements to the product and this document, Kongsberg Simrad Mesotech welcomes comments and constructive criticisms. Please send all such comments, in writing or by e-mail, to: Kongsberg Simrad Mesotech Ltd. Documentation Department...
  • Page 8 901-10037001/1.1 FS 20/25 Operators Manual Page 6 List of Contents Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 9: Table Of Contents

    1.1.5 Power Supply/TTM Interface Module ............1.5 1.1.6 Deployment Housing Unit ..............1.6 1.1.7 Jointing Tool ..................1.6 1.1.8 Catch Sensors ..................1.6 1.1.9 Printer Option..................1.6 1.1.10 Sounder Option..................1.7 1.1.11 VCR Option...................1.7 1.1.12 Trawl Cable, Winch and Block ..............1.7 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 10 901-10037001/1.1 FS 20/25 Operators Manual Page 1.2 System Familiarization Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 11: System Familiarization

    1. SYSTEM FAMILIARIZATION 1.1 OVERVIEW The SIMRAD FS 20/25 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.

  • Page 12: System Configuration

    LCD MONITOR NMEA IN/OUT 144-0217 RS 232 Cable Keyboard Keyboard Mouse Mouse 901-10050000 901-10060000 FS20/25 HP/PC FS20/25 HP/PC Optional Processing Unit Remote Processing Unit Remote KeyPad Remote KeyPad 805-00030000 805-00030000 436-00410000 Test Cable 974-80010000 SIMRAD FS 20/25 FS900/925 Housing 901-60040000...

  • Page 13: Display Monitor

    LCD Simrad ruggedized monitor, but any commercially available monitor may be used. In order to have the full benefit of high resolution provided by the video Multi- Display adapter available with the FS processors, you should use a Simrad LCD Monitor.

  • Page 14: Deployment Housing Unit

    Jointing tools and materials are required for splicing the trawl cable and attaching the trawl “pigtail” connector to the trawl sonar. Simrad supplies jointing tool kits especially designed for coaxial cable with a breaking point of 1500kg. The jointing kit will allow you to make 10 cable joints.

  • Page 15: Sounder Option

    When interfaced to the Simrad EQ 55 or ES 60 color sounder, the headrope and the footrope information appears on the sounder, showing the location of the trawl in relation to the fish or bottom returns.
  • Page 16 901-10037001/1.1 FS 20/25 Operators Manual Page 1.8 System Familiarization Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 17 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 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 18 901-10037001/1.1 FS 20/25 Operators Manual Page 2.2 Theory of Operation Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 19: Theory Of Operation

    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 circuit. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 20: Key Feature Setting

    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. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 21: Rx Gain Response And Type

    Medium this ratio is 50% to 50%, and the Fast, the ratio is 80% to 20%. 2.1.4.4 Pulse Length Control The FS20/25 Trawl Sonar Heads are capable of changing the acoustic pulse length that is transmitted. The surface processing unit calculates the pulse length based on the operating range of the sonar head.

  • Page 22: Peak Detection

    Detection because we are detecting the peak value of signal in between two samples. The user can select the number of additional samples that the system takes in order to detect the peak value. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 23 3.9 HEADER MENU STRUCTURE..............3.10 3.10 FILE ......................3.10 3.11 VIEW ......................3.10 3.12 CONFIGURATION..................3.12 3.13 OPERATIONS ..................3.12 3.14 TARGETS....................3.13 3.15 NETWORK ....................3.14 3.16 WINDOW....................3.14 3.17 HELP ......................3.14 3.18 INSTALLATION & SET UP ...............3.14 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 24 901-10037001/1.1 FS 20/25 Operators Manual Page 3.2 FS 20/25 System Operation Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 25: Fs 20/25 System Operation

    As you move the pointer over the tool bar, a simple help message will pop up beside the pointer describing its function. To perform certain operations, just click the mouse over the tool bar desired item. Selected items are highlighted. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 26: Control Panel

    Speed, and Tilt for the FS 25. A color-coded graphical symbol shows the sector size and heading for the selected sonar head. The main control panel can be docked, undocked, floating and auto-hidden by selecting “VIEW” commands. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 27: Tool Bar

    The Save Image Icon is used to save the sonar image in the active window as a Bitmap File and a Text document in Microsoft word with all the sonar settings and Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 28 901-10037001/1.1 FS 20/25 Operators Manual Page 3.6 FS 20/25 System Operation can be later printed. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 29: Clear Display

    Played Back at a later date. The Pause Icon will stop the sonar playback images. You can also Fast Forward play the sonar images. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 30: Scan Reverse

    3.4 CURSOR The Cursors Icon is used to enable the cursor 1, and cursor 2, when you activate the Cursors Icon a dialogue window will be displayed on the sonar image. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 31: Tool Bar Accessories

    “Display” and click, than go to “SHOW” and click, than click on the Depth Graph or the Temp Graph and the selected Graph window will pup up. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 32: Language

    Save as a BipMap Save In: File Name: Save: EXIT YES or NO 3.11 VIEW CONTROL PANEL Docked Floating Hidden Auto Hidden DISPLAY Pointers Cursors Head setting Altimeter (NOT USED) Magnifier Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 33 CHART TOOL BAR (NOT USED) MARKERS TOOLBAR (NOT USED) IMAGE CONTROL BAR Click ON/OFF Show Hide Auto Hidden STATUS BAR Click ON/OFF FULL SCREEN Click ON/OFF SCREEN FIT IMAGE Click ON/OFF Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 34: Configuration

    USER Generic User 1 Define SAVE SETTINGS Save user define setting LOAD SETTINGS User define setting 3.13 OPERATIONS RUN SONAR HEAD STOP SONAR HEAD SELECT SONAR HEAD FS 20 FS 25 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 35: Targets

    END EXPORT PLAYBACK DATA Begin Playback Pause EVENTS (NOT USED) SYNCHRONIZE FS 20 FS 25 FACTORY RESET 3.14 TARGETS ARROW CURSOR 1 CURSOR 2 TAPE MEASURE HEIGHT MEASURE STRING MEASURE TEXT WIPER Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 36: Network

    Disconnected FS 25 3.17 HELP HELP TOPICS ABOUT 3.18 INSTALLATION & SET UP The FS 20/25 installation, system set up configuration and test will be covered in PART 4 of this manual. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 37 FS 20/25 Operators Manual 901-10037001/1.1 FS 20/25 System Operation Page 3.15 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 38 4.2.9 Selecting the Trawl Output Voltage............4.7 4.2.10 Connection to Cable Winch/Slip-Rings..........4.8 4.2.11 Interfacing to a Simrad Echo Sounder..........4.8 4.3 ASSEMBLING OF TRAWL UNIT ..............4.9 4.3.1 FS 20/25 Configuration .................4.9 4.4 SYSTEM SET-UP AND TESTING USING TEST CABLE ......4.10 4.4.1 Start Up ....................4.10 4.4.2 Power-Up Configuration..............4.11...
  • Page 39 901-10037001/1.1 FS 20/25 Operators Manual Page 4.2 FS 20/25 Installation, System Set-Up and Test 4.4.18 Completing Trawl Unit Assembly.............4.32 4.4.19 Mounting CATCH SENSORS ............4.33 4.5 SAVE USER SETTING ................4.34 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 40: Fs 20/25 Installation, System Set-Up And Test

    Simrad supplied display units include the necessary mounting brackets. The FS 20/25 HP PC processor should be mounted in close vicinity to the operator's position in the wheel house and near the display unit.

  • Page 41: Power Considerations

    Refer to Paragraph 4.2.7 for more detail. 4.2.3 Connecting a Display Unit Either a VGA monitor CRT type or a Simrad LCD monitor may be connected to the FS 20/25 HP PC processor. Depending on which type of monitor is used, the video output type must be set accordingly.

  • Page 42: Connecting The Processor

    “A” port at the rear of the processing unit. A standard Null Modem 9-pin serial cable is supplied with the TTM module. Connect the RS 232 port “B” serial cable from the Power Supply/TTM module to the Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 43 For additional information, please refer to the User’s Guide supplied with the system. Warning! Before applying the power to the processing unit, ensure that the proper AC input voltage has been selected. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 44: Connecting The Ttm Module

    TTM module. In the “FS20” position, 120 VDC will be provided to the trawl cable. You select the FS 20 when you have an FS900 Housing under water unit connected to the trawl cable, utilizing an FS3300, TS10, TS15 or TS15S sonar head and a sensor module.

  • Page 45: Connection To Cable Winch/Slip-Rings

    4.2.11 Interfacing to a Simrad Echo Sounder The FS 20/25 HP PC processor may be connected to a Simrad echo sounder for display of the trawl unit depth on the sounder. This is made via the RS232 serial port “B”...

  • Page 46: Assembling Of Trawl Unit

    Both are fastened into place to prevent the sonar head from moving back and forth. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 47: System Set-Up And Testing Using Test Cable

    56 volts if on “TEST” setting. The current meter should read approximately 0.15 – 0.7 amps if everything is okay. 3. Next turn on the display monitor, and then turn on the HP/PC. The system will start up automatically. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 48: Power-Up Configuration

    HP/PC processing unit that has only 2 Com ports, Com 1 and Com 2. The Com 1 port from the HP/PC processing unit is connected to the FS20/25 TTM module RS 232 port “A”. No connection is made to the Com 2 or to the “B” port of the TTM module.
  • Page 49 Go to the header menu, “Click” on “Configuration” and a dialogue window will pop up. Next “Click” on “Connect Heads”. The following window will pop up. After the “System Configuration” Window pops up, note that Com 1 has not been Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 50 “Click” on “Apply”. The following window will appear, overlaying the above window, asking you to reboot the computer. Just “Click” “OK” (the “FS 20/25” window will disappear) and do not “Reboot the computer now”; “Click” “OK” in the “System Configuration” window. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 51: Fs 20/25 Start-Up Procedure

    HP/PC processing unit that has only 2 COM ports, COM 1 and COM 2. The COM 1 port from the HP/PC processing unit is connected to the FS20/25 TTM module RS 232 port “A”. The COM 2 port from the HP/PC processing unit is connected to the FS20/25 TTM module RS 232 port “B”...
  • Page 52 Configuring the System for the first time, or if you have replaced the HP/PC processing unit or the TTM Module, you will select and “Click” on “Generic” and then “Click” on OK. The next Window will pop up Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 53 The “System Configuration” window will reappear. Use the mouse to highlight COM 1. Note that the COM 1 Configuration will now be displayed. Use the mouse to “Enable for Head Control” (Left button click, check mark in box to enable). Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 54 “Reboot the computer now”; “Click” “OK” in the “System Configuration” window. Now you will have to go to the Header Menu, “Click” on “Configuration” a dialogue window will pop up. “Click” on “Connect Heads”. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 55 Confirmation window might appear. It will ask you if you want to reconfigure “Click” on “NO”, then go back to the “Header Menu” “Click” on “Configuration” and re-start the system set-up as per outline in Paragraph “4.4.3” or “4.4.4”. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 56: Fs 20 Or Fs 20/25 Run Up Procedure

    From that point on by clicking on the “FS 20”, TS 15 Sounder or the FS 25 window you will have control over the selected Sonar. The sonar you have selected will be highlighted by a blue bar across the top.. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 57: Display Settings

    By clicking on the appropriate “key” you will be able to change the color i.e. Overlay colors, Pallets styles and threshold, etc. The same operation will apply to the TS15 S sounder, and the FS25 windows Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 58: Control Setting

    Note: The “Timer Control” will be turn “ON” automatically when you CLICK on the “S” Icon located on the “Tool Bar”. The same operation will apply to the TS 15 S sounder and the FS 25 windows Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 59: Head Sensors Setting

    The “Catch Alarm” may be turn “ON” or “OFF” using this menu by clicking in the appropriate check box. The same operation will apply to the TS 15 S sounder. Note: The Catch, Depth and Temp will not apply to the FS 25 window. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 60: Fs 20 Head Setting

    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. Mote: The “Tilt” and “Stabilization” is only available on the FS25 System. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 61: Transmit Setting

    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 TS 15 S sounder and the FS 25 Windows Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 62 By clicking on the appropriate key, you will be able to setup your TVG setting. You also have the option of customizing your TVG setting for a specific fishery. The same operation will apply to the TS 15 S Sounder and the FS 25 windows. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 63: Info

    This INFO page will provide you with all the relevant information on the sonar head attached to the system. The same window will apply to the FS 25 System Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 64: Auxiliary Transducer (Net Sounder)

    By Clicking on the appropriate key, you will be able to control the TS 15 S sounder option. Note: The Auxiliary Transducer window is only applicable to the TS 15 S Sounder option. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 65: Auxiliary Tvg Page Setting ( Net Sounder)

    By Clicking on the appropriate key, you will be able to setup your TVG setting. You also have the option of customizing your TVG setting for a specific fishery. Note: The Auxiliary TVG window is only applicable to the Ts 15 S sounder option. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 66: Fs 25 Head Settings

    Info page and setup your TVG the same way you setup the FS 20 Sonar head Note: The FS25 Head Setting window is specific to the FS 925 Trawl Sonar head and does not have the Sensors, Auxiliary Transducer and Auxiliary TVG settings. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 67 When you Exit the system, the system will request if you want to save your setting. Just say “YES” or “NO” Note: After the Service Engineer has completed the initial Setup and Seatrial, we Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 68 Do not change the “GENERIC” setting. If you have a problem, just go back and select the “GENERIC” setting, or to your specific file. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 69 RTV or any other sealant must NOT be used, and when tightening the locking sleeves do NOT use a wrench or pliers! See chapter 5, "Troubleshooting and Maintenance", for proper connector maintenance. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 70 For deep trawling, and when fish is abundant, it can be advantageous to mount three or four catch indicators in such a way that cod-end filling can be monitored continuously to insure that the trawl is hauled back in time. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 71: Save User Setting

    “Click” on “Yes”. Then the System will request “Do you want to save settings?” “Click” on “Yes” if it his new settings or “No” as you prefer. If you “Click” on “Yes” the following window will pop up. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 72 User file for the “Seatrial”, as a reference, in case a problem occurs. After the setup, do not change the “Generic” or your specific “Seatrial” setting. If you have a problem, just go back and select the “Generic” or your specific “Seatrial” setting. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 73 5.5.3.4 Housing Units (Heads, Sensor Modules and Egg Receivers) ..5.23 5.5.3.5 Full 3 Wire Assembly (Including Slip Rings and Wheelhouse Cable)5.25 5.6 SECTION 1 - CATCH SENSORS ..............5.27 5.7 SECTION 2 - WINCH SLIP RINGS AND TRAWL CABLE ......5.27 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 74 901-10037001/1.1 FS 20/25 Operators Manual Page 5.2 Maintenance and Troubleshooting Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 75: Troubleshooting And Maintenance

    In addition to the above equipment, but not supplied by Simrad, the system requires a winch with slip rings, and a trawl cable for connection of the FS trawl unit to the wheelhouse electronics.

  • Page 76: Trawl Cable Requirements

    HANDLING & MAINTENANCE The most common causes of failures to the Simrad FS Trawl Monitoring system are: Trawl cable and/or winch slip ring problems. Sonar head and sensor module connector and interconnect cable failures, or Excessive impacts and/or physical damage to trawl unit electronics.

  • Page 77: Trawl Unit

    The trawl unit package should be opened and the components cleaned with fresh water. The sonar head and sensor module should be inspected for corrosion or damage. Service all connectors. The FS processor should be checked and cleaned if required. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 78: Connector Maintenance

    Wipe connectors clean of old grease and dirt with a lint-free cloth. Inspect the connector’s metal contacts and sealing surfaces for corrosion, wear or damage. If any found, return unit to a qualified Simrad service facility for replacement of the connector! Apply liberal amounts of Dow Corning “55”...

  • Page 79: Excessive Impacts

    If the shaft is bent, the unit should be returned to a qualified Simrad service facility for replacement of the shaft seal assembly. Note!

  • Page 80: Catch Sensors

    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. A damaged, worn or poorly maintained cable, pigtail connection or slip rings will degrade the performance of the system and may cause or lead to a complete system failure.

  • Page 81: Monitoring System Performance

    Part 7 “Attachments”. MONITORING SYSTEM PERFORMANCE There are a number of tools available with the Simrad FS Trawl Monitoring system that allow 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.

  • Page 82: Power Supply Meter Readings

    TTM/PWR unit with a test cable, should be run with the switch in “TEST”. If you make a mistake and have the switch in “FS20”, it will be fine for a short period of time, but the head will really start to heat up and may damage the power supply if run for a longer period of time.
  • Page 83 If the current readings are the same on the test cable as previously obtained, then the trawl cable and winch slip rings should be checked. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 84: Trawl Cable Gain

    The FS Trawl Monitoring system will apply gain to the signals to compensate for the cable losses. With both the FS20 and FS20/25 systems, the cable gain compensation has been automated. Each time the system is powered up (or when a system calibration is performed), the gain levels are set in the PWR/TTM unit translation module LF1 and LF2 Sub-assemblies by the processor unit.

  • Page 85: System Error Messages

    Page 5.13 Cable Gain Calculations To illustrate how you can evaluate these “Cable Gain” numbers, let’s assume that your system gave the above as Cable Gain numbers for the FS20 Vertical Head (LF1) on an 8’ service test cable…………Cable Gain 6,44...
  • Page 86 This example shows that an FS20/25 System ran up to the fully operating condition, error free. If the system continues to operate error free, there will be no changes made to this window. If there are errors occurring, they will be displayed, along with an error code, description of it and the time it occurred.

  • Page 87: Troubleshooting

    Page 5.15 TROUBLESHOOTING In the event the Simrad FS Trawl Monitoring system does not operate correctly, care must be taken to properly diagnose the cause of the failure. Quite often the failure is thought to be with the FS electronics when the actual cause is due to the winch slip rings, or the trawl cable.

  • Page 88: Diagnosing Problems

    Note! If a Simrad FS unit is diagnosed as being faulty, then the unit(s) should be returned to an authorized Simrad service center. ALL system performance results and a complete description of the problem should be supplied with the defective unit to assist in its repair.

  • Page 89: Common Fault Recognition Charts

    As operators of the FS20 and FS20/25 systems, you should think of the system broken down into five distinct sub-sections as follows: PC to the “Digital”...

  • Page 90: Pc To Pwr/Ttm Unit (Digital)

    PC is concerned, it is talking to, and will eventually be running “digital head(s)”. This area of the run up sequence occurs during the “Connect Heads”, and then “Detect Heads” phase (Refer to Section 4.4.4). Using an FS20/25 system as an example, the following window illustrates a communication problem between the PC and the LF2 Sub-assembly.
  • Page 91 Full system run up; the one head will not work on either COM Port Will require service ashore No option; you will only have use of the one head until the PWR/TTM repaired Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 92: Pwr/Ttm Unit To Deployment Package Units (Analog)

    If not, it will almost certainly require a service representative to isolate and repair a problem in the FS925 section. There will be specific head problems and symptoms discussed in the next section. Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 93 No option; vertical head unavailable until repairs made to PWR/TTM Unit Send PWR/TTM Unit ashore for repair Difficult to isolate if no backup available FS925 does not operate as a comparator Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 94: Pwr/Ttm Unit

    5.4.1). 3. Communication Interface (discussed in previous sections). An FS20/25 System will be used as the example for an internal power supply failure to the LF Sub-assemblies. The only apparent symptom is during the Connect/Detect head process; there would be no head connected to either COM1 or COM2 (swapping cables would give the same result) and neither head would work if a full system run up was done.

  • Page 95: Housing Units (Heads, Sensor Modules And Egg Receivers)

    (including slip rings) Sonar head operates but image Check calibration for errors in sonar skewed or distorted heads positioning (quadrant failure) If errors, then problem with sonar head, otherwise check that sonar Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 96 Not Normal if the frequency of this problem starts to occur more often, even if they still clear on their own Send sensor module ashore for testing Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 97: Full 3 Rd Wire Assembly (Including Slip Rings And Wheelhouse Cable)5.25

    As a minimum, the impedance should be greater than 2 Mohms, and preferably over 6 Mohms. Caution! The FS system MUST be disconnected from trawl cable during Meggar tests to prevent possible damage to the electronics! Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 98 To test for this, the trawl cable should be disconnected from the FS system and a voltage meter connected to the trawl unit end of the cable. If water is present, then Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

  • Page 99: Section 1 - Catch Sensors

    2 - 3 Vdc. SECTION 1 - CATCH SENSORS Refer to your Simrad FA701 sensor operator and service manual or see Part 7 ‘Drawings” for more information. SECTION 2 - WINCH SLIP RINGS AND TRAWL CABLE Refer to your Manufacture operator and installation manual or see part 7 “Drawings”.
  • Page 100 901-10037001/1.1 FS 20/25 Operators Manual Page 5.28 Maintenance and Troubleshooting Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 101 FS 20/25 Operators Manual 901-10037001/1.1 Drawings Page 6.1 PART 6 DRAWINGS DRAWINGS ....................6.3 6.1 LIST OF DRAWINGS ..................6.3 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 102 901-10037001/1.1 FS 20/25 Operators Manual Page 6.2 Drawings Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 103 FS 20/25 SA TTM Wiring Diagram 901-60061003 FS 20 SA TTM Wiring Diagram 971-80111000 FS 900 1800m Deployment Housing Assembly 974-80011000 FS 900/925 1800m Deployment Housing Assembly 974-80011001 FS 925 Stand Alone Deployment Housing Assembly Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 104 901-10037001/1.1 FS 20/25 Operators Manual Page 6.4 Drawings Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 105 FS 20/25 Operators Manual 901-10037001/1.1 Attachments Page 7.1 PART 7 ATTACHMENTS ATTACHMENTS .....................7.3 7.1 LIST OF ATTACHMENTS................7.3 Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 106 901-10037001/1.1 FS 20/25 Operators Manual Page 7.2 Attachments Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 107 FS 20/25 Window 2000 Operating System Set –Up 232PC12B B & B Additional 2-Serial Port Installation and Set-UP Dual Monitor Display Setup Procedure FS 20/25, PWR/TTM Unit Meter Charts FS 20/25 PWR/TTM Unit Outline Drawing Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...
  • Page 108 901-10037001/1.1 FS 20/25 Operators Manual Page 7.4 Attachments Kongsberg Simrad Mesotech Ltd. Port Coquitlam, BC - Canada...

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