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Marport Trawl Explorer User Manual

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Summary of Contents for Marport Trawl Explorer

  • Page 1 Trawl Explorer User Guide...

  • Page 3: Table Of Contents

    Contents | ii Contents Legal....................4 History...................................4 Copyright..................................4 Disclaimer..................................4 Introduction and Presentation............5 Introduction................................5 Applications................................6 Safety Guidelines..............................7 Description.................................. 8 Firmware................................8 Technical Specifications..........................8 Main Parts...............................9 Operational Mode Indicator........................10 Installation Steps..............................11 Sensor Configuration..............12 Installing Mosa................................ 12 Connecting the Sensor to Mosa........................
  • Page 4 Contents | iii Installation..................36 Installing a Trawl Explorer on the Trawl....................36 Servicing and Maintenance.............39 Interference Check..............................39 Spectrum Analyzer Display........................39 Checking Noise Interference......................... 39 Charging the Sensor.............................. 41 Maintenance................................42 Cleaning the Sensor..........................43 Maintenance Checklist..........................43 Troubleshooting..............................44 Mosa does not start due to error message..................44 Sensor has difficulty connecting to Mosa..................

  • Page 5: Legal

    Marport. “Marport ”, the Marport logo and Software Defined Sonar are registered trademarks of Marport. All other brands, products and company names mentioned are the trademark and property of its respective owners only. Marport is a division of Airmar Technology Corporation.

  • Page 6: Introduction And Presentation

    Tip: Click Marport logo at the bottom of pages to come back to the table of contents. Introduction Marport’s Trawl Explorer is your eye on the fishing gear. This sounder can be placed on your trawl headrope or tunnel in order to send useful information to the wheelhouse.

  • Page 7: Applications

    Trawl Explorer | V2 | Introduction and Presentation Applications This is an example of data received from a Trawl Explorer sensor and displayed in Scala. Trawl Explorer display from the trawl headrope...

  • Page 8: Safety Guidelines

    Install and use this product in accordance with this user manual. Incorrect use of the product may cause damage to the components or void the warranty. Only qualified Marport dealers can do internal sensor maintenance and repairs. Precautions Warning: In case of water ingress in the product, do not charge it: battery may vent or...

  • Page 9: Description

    Trawl Explorer | V2 | Introduction and Presentation Description Firmware There are three versions of the Trawl Explorer. Each version has a different firmware (called NBTE) and different features. NBTE V1 NBTE V2 NBTE V3 Name of firmware FIRM121 FIRM126...

  • Page 10: Main Parts

    Trawl Explorer | V2 | Introduction and Presentation Beamwidth Beamwidths for uplink pings: Beamwidth @ 35 kHz @ 50 kHz @ 60 kHz -3dB 46° 40° 30° Beamwidths for up and down pings: Beamwidth @ 125 kHz @ 160 kHz...

  • Page 11: Operational Mode Indicator

    Trawl Explorer | V2 | Introduction and Presentation CAUTION: • Do not put foreign objects into depth sensor opening or try to open it. • Do not remove the shoulder bolts from the outside of the sensor It may damage the components.

  • Page 12: Installation Steps

    Trawl Explorer | V2 | Introduction and Presentation Installation Steps Tip: Click an installation step to jump directly to the corresponding section. Note: You can customize the display of data on Scala at any time. | 11...

  • Page 13: Sensor Configuration

    Trawl Explorer | V2 | Sensor Configuration Sensor Configuration Learn how to configure Trawl Explorer sensor settings. Note: This guide refers to the following versions of Mosa: 01.01.01-01.02.00. If you use another version, the visual interface and options may vary.

  • Page 14: Connecting The Sensor To Mosa

    Trawl Explorer | V2 | Sensor Configuration • Select Terminal from the results. • From the terminal, enter sudo spctl --master-disable. • Press enter. Anywhere option is now displayed in Security & Privacy preferences. Connecting the Sensor to Mosa To configure the sensor, you need to connect it via Bluetooth to Mosa.
  • Page 15 Trawl Explorer | V2 | Sensor Configuration Sensor configuration page is displayed. What to do next You can now configure the sensor settings. | 14...

  • Page 16: Sounding Modes

    Trawl Explorer | V2 | Sensor Configuration Sounding Modes The sensor can send pings according to three different sounding modes. Down 1 Sensor sends pings towards down direction only. You can see fish going into the trawl. Pings are sent quicker than with the other modes, so more data is received, which enables a better horizontal resolution.

  • Page 17: Configuring The Uplink, Up And Down Settings

    Trawl Explorer | V2 | Sensor Configuration Configuring the Uplink, Up and Down Settings You can configure different settings for uplink, down and up soundings. Before you begin The sensor is connected to Mosa. About this task Remember: Always click Apply after you change a setting and make sure there is a green...
  • Page 18 Trawl Explorer | V2 | Sensor Configuration 2. From Down and Up Sounding Range, select the range according to how many meters you want to see under the sensor. Note: The range influences the display of echogram images. When the range is short, data can arrive quicker, which gives better quality images.

  • Page 19: Target Strength

    Important: Do not change ping lengths on a V3 sensor or it will have to be returned to a Marport sales' office for target strength calibration. Note: The maximum detection depth depends on ping frequency and type of bottom. The lower the ping frequency is, the longer the detection depth is.
  • Page 20 Trawl Explorer | V2 | Sensor Configuration For V3 version of sensors: • 20 log: focus on bottom or school of fish . • 40 log: focus on individual targets. • 30 log: compromise between the two above settings. For V1 and V2 versions of sensors: •...

  • Page 21: About Time Variable Gain

    Trawl Explorer | V2 | Sensor Configuration About Time Variable Gain TVG (Time Variable Gain) is a method that compensate signal loss in the water. Basically, the aim is to have targets or sea bottom displayed in the same color on the echogram, whatever the distance from the sensor.

  • Page 22: Selecting A1 Board Orientation

    Trawl Explorer | V2 | Sensor Configuration • Select Config1 (default): this is the more appropriate sequence for a Trawl Explorer. • Or select Config3 if you use the True mode display on echograms in Scala. 4. Click Apply. Below is an example of echograms without True Mode (top) and with True Mode (bottom). With True Mode activated, you see the area between the sea surface and the seabed.

  • Page 23: Canceling The Ringing

    Trawl Explorer | V2 | Sensor Configuration About this task The transducer (yellow part) can be installed in two different positions, with a different angle of 90°. When the down sounder points to the ground, the A1 board inside the sensor can be in a vertical or horizontal position depending on the transducer orientation.
  • Page 24 1. From Mosa, click Menu  > Expert Mode and enter the password copernic. 2. From the tab Trawl Explorer, click Ringing Down. 3. Place the sensor in a large tank or in your office and click Emit 10 Ping Down.

  • Page 25: Configuring The Uplink Power

    Trawl Explorer | V2 | Sensor Configuration a) The red line should follow the same curve. b) The 4th point can be placed at the point where the yellow and gray lines go under the noise floor (green line). Note: Data below the red line will not appear on the echogram and data above will appear as a red line on the echogram.

  • Page 26: Testing Measures

    Trawl Explorer | V2 | Sensor Configuration Testing Measures You can test the measures taken by the sensor (e.g. battery level, temperature, depth) to check that there are no faults. Before you begin The sensor is connected to Mosa. Procedure 1.

  • Page 27: Exporting Configuration Settings For Record Keeping

    Trawl Explorer | V2 | Sensor Configuration Exporting Configuration Settings for Record Keeping You can export the sensor configuration settings to a *.txt file. Before you begin • You have finished configuring the sensor. • The sensor is connected to Mosa.
  • Page 28 Trawl Explorer | V2 | Sensor Configuration Procedure 1. Click the tab Configuration. 2. Click Config to XML. 3. Click Apply under the black area. The settings are displayed. 4. To save the settings: • Click Save to file to download an XML file on the computer.

  • Page 29: System Configuration And Display

    Adding the Sensor to the Receiver You need to add the Trawl Explorer to the receiver in order to display sensor data on Scala. About this task The Trawl Explorer is compatible with the following M3/M4/M5/M6 receiver and Scala versions:...
  • Page 30 Trawl Explorer | V2 | System Configuration and Display 2. From the left side of the page, click Sensors. 3. Click the tab Add from Marport Sensor Config Utility. 4. Click Browse and select the XML file. Information about the sensor is displayed.

  • Page 31: Adding The Sensor Manually

    2. Click menu again, then Receivers. 3. From the left side of the receiver page, click Sensors. 4. From Product Category, select Trawl Explorer. 5. From Product Name, select Narrow Band Trawl Explorer with Target Strength (V1)/(V2)/(V3) (choose accordingly to Firmware on page 8 installed).
  • Page 32 Trawl Explorer | V2 | System Configuration and Display 6. From Trawl Gear Location, select the location of the sensor on the trawl. Sensor locations are called nodes and have a numerical value between 1 and 999. We recommend you to choose: 7, 8 or 9 to install the sensor on the tunnel, and 10, 11, 12 or 13 to install it on the headrope.

  • Page 33: Configuring The Sensor Settings

    200 Hz margin before and a 400 Hz + 200 Hz margin after the Trawl Explorer. So if the Trawl Explorer sensor is given the frequency 44000 Hz, the uplink frequency of the previous sensor has to be at 43800 Hz or lower, and the uplink frequency of the sensor after has to be at 44600 Hz or higher.

  • Page 34: Configuring The Sensor Display On Scala

    Trawl Explorer measurements are displayed in the control panels, under Sensors Data. Data title should be Trawl Explorer followed by the node where the Trawl Explorer was placed when added to the system. Data displayed (e.g. depth, temperature, pitch & roll) depend on the firmware installed.
  • Page 35 Trawl Explorer | V2 | System Configuration and Display 2. From Sensors Data, click + hold Trawl Explorer data (for example Depth) for 3 seconds until a rectangle appears and drag it to a page in the middle of the screen.
  • Page 36 To display the target strength: a) From the top left corner of the echogram, right-click the Trawl Explorer name and select Display Target Strength. b) Hover the mouse over the echogram.

  • Page 37: Installation

    Trawl Explorer | V2 | Installation Installation Learn how to install Trawl Explorer sensors on the trawl gear. Installing a Trawl Explorer on the Trawl We recommend to install the sensor on the headrope in order to see the trawl opening and fish entering the trawl.
  • Page 38 Trawl Explorer | V2 | Installation We recommend you to use a netting bag placed on a suitable location in the net. Use a safety line between one of the sensor's attachment lugs, as shown in the picture below. The safety line should be a steel wire with fitted small shackles at either end.
  • Page 39 Trawl Explorer | V2 | Installation Tunnel To install the sensor on the trawl tunnel, install it on a location corresponding to nodes 7, 8 or 9 on the image below: The installation procedure is the same as the one for the headrope.

  • Page 40: Servicing And Maintenance

    Trawl Explorer | V2 | Servicing and Maintenance Servicing and Maintenance Read this section for troubleshooting and maintenance information. Interference Check You can check if there is noise interfering with the reception of signals. Spectrum Analyzer Display The following picture explains the main parts of the spectrum analyzer on Scala.
  • Page 41 Trawl Explorer | V2 | Servicing and Maintenance 3. From the top right corner of the screen, click Spectrum. 4. From the top left corner of the screen, click Start Spectrum. 5. Select the hydrophone you want to test. Only the hydrophones that are switched on are displayed.

  • Page 42: Charging The Sensor

    11. To save data recorded by the spectrum in a *.txt file, click Save FFT. 12. When you have enough data, click Stop Spectrum. Charging the Sensor Charge the sensor at any battery level with either Marport Basic Sensor Charger or Marport Medusa II Multi-charger. About this task The sensor uses lithium-ion batteries.

  • Page 43: Maintenance

    Read this section to learn best practices for maintaining the sensor. Only an approved Marport dealer can access the internal unit. Warranty will become void if anyone other than an approved dealer tries to do internal maintenance duties on the sensor.

  • Page 44: Cleaning The Sensor

    Trawl Explorer | V2 | Servicing and Maintenance Cleaning the Sensor You need to regularly clean the sensor for proper performance. Wash the sensor with fresh water before you charge or store it. Regularly check that the sensor is clean. If not: •...

  • Page 45: Troubleshooting

    Trawl Explorer | V2 | Servicing and Maintenance Troubleshooting Read this section to know how to solve common problems. Mosa does not start due to error message Mosa displays an error message saying Mosa cannot be opened. Your Mac security preferences do not allow you to open software not downloaded from the App Store.

  • Page 46: Echogram Is Fixed And Blue

    1. Check that the name of the sensor on the top left corner of the echogram is Trawl Explorer. 2. If not, from Trawl Explorer in Sensors Data, click + hold Range of Sonar Data and drag it to the page display.

  • Page 47: Support Contact

    Trawl Explorer | V2 | Servicing and Maintenance Support Contact You can contact your local dealer if you need maintenance on your Marport products. You can also ask us at the following contact details: FRANCE ICELAND Marport France SAS Marport EHF 2, allée Copernic...

  • Page 48: Appendix

    Trawl Explorer | V2 | Appendix Appendix Appendix A: Frequency Plan It is important to carefully plan the setup of your sensors before adding them to the system. You can create a table with a list of frequencies and complete it when you add sensors.
  • Page 49 Trawl Explorer | V2 | Appendix C-4/CH5 42700 C-4/CH6 43300 C-5/CH1 42024 C-5/CH2 41690 C-5/CH3 41285 C-5/CH4 41060 C-5/CH5 42900 C-5/CH6 43400 C-6/CH1 39062 C-6/CH2 39375 C-6/CH3 39688 C-6/CH4 40000 C-6/CH5 40312 C-6/CH6 40625 C-7/CH1 38906 C-7/CH2 39219 C-7/CH3 39531...
  • Page 50 Trawl Explorer | V2 | Appendix Frequencies and intervals The diagrams below show the bandwidth of the different types of Marport sensors and intervals you must respect when adding other sensors. Note: The bandwidth of wide band HDTE is 1200 kHz. Intervals are the same.
  • Page 51 Trawl Explorer | V2 | Appendix Examples of frequency allocations • We recommend to allocate frequencies between 37 and 52 kHz. • Echo sounders are usually placed around 38 kHz, make sure to allow enough distance with them. | 50...
  • Page 52 Trawl Explorer | V2 | Appendix | 51...

  • Page 53: Index

    Index | 52 Index Battery life LEDs Beamwidth Boat code Maintenance External Internal Channel code Charger Schedule Maintenance Measurement sending sequences Plugging Measures Mosa Cleaning Allow apps downloaded from Config Read Bad connection Contact Cannot start Connecting to Error message Dimensions Installing Security &...
  • Page 54 Index | 53 Scala Adding sensor Configuring sensor Displaying in Filters Trawl gear location Select orientation Sensor location Sounding Double Down Down Settings Spectrum System requirements Tablet Target strength Technical specifications Transducer orientation Selecting Trawl opening TVG (Time Variable Gain) Uplink power Water ingress...

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