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Trawl Explorer | V7 | 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. You can also install it on the trawl tunnel to see fish going toward the codend.

Headrope

Install the sensor on the headrope on a location corresponding to nodes 13, 12, 11 or 10 on the image
below:

If you want to see the footrope, move back the sensor of a few meters, as illustrated below.

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Summary of Contents for NBTE V1

Page 1: ...Trawl Explorer User Guide...

Page 2: ......

Page 3: ...Soundings 19 Target Strength 21 About Time Variable Gain 22 Configuring Measurement Sending Sequence and True Mode 23 Selecting A1 Board Orientation 24 Canceling the Ringing 25 Configuring the Uplink...

Page 4: ...46 Charging the Sensor 49 Cleaning the Sensor 50 Maintenance Checklist 51 Troubleshooting 52 Mosa2 does not open due to error message 52 Sensor cannot connect in wireless connection 52 Sensor does no...

Page 5: ...ents Mosa2 version 02 07 Connecting the Sensor to Mosa2 on page 15 added guidance on how to connect sensor to Mosa2 using the Configuration Cable product Added troubleshooting topic Sensor does not co...

Page 6: ...gistered 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 7: ...nd fish entering the net Also on the echogram the distance between the footrope and seabed to see if the gear touches the bottom Depth data Temperature data Pitch and roll data Distance from the senso...

Page 8: ...n and Presentation Applications This is an example of data received from a Trawl Explorer sensor and displayed in Scala Scala2 Trawl Explorer display from the trawl headrope 1 Sea bottom 3 Fish 2 Targ...

Page 9: ...side Never place the product in a hazardous and or flammable atmosphere Product installation and use Install and use this product in accordance with this user manual Incorrect use of the product may c...

Page 10: ...between 120 210 kHz Sounder range V1 V2 5 to 80 m V3 5 to 160 m Data update rate Depth 1 8 sec Temp Battery Height Pitch Roll every 6 sec Echogram update rate V1 up to 1 image second V2 V3 up to 3 im...

Page 11: ...ds on sensor uplink power and options Based on average charging time Marport Standard Marine Limited Warranty Beamwidth Beamwidths for uplink pings Beamwidth 35 kHz 50 kHz 60 kHz 3dB 46 40 30 Beamwidt...

Page 12: ...harge 10 Water switch 11 Shoulder bolts The serial number may also be written on a plate on the side of the housing CAUTION Do not put foreign objects into depth sensor opening or try to open it Do no...

Page 13: ...LED Charging Charger plug is connected Batteries are charging No light Running Sensor is in water or activated with jumper After an initialization phase echo sounder is operating Flashing red Configur...

Page 14: ...xplorer V7 Introduction and Presentation Installation Steps Click an installation step to jump directly to the corresponding section Note You can customize the display of data on Scala Scala2 at any t...

Page 15: ...already installed on the computer you need to install it to configure the sensor About this task Important If the computer is under OS X Mavericks Yosemite or El Capitan use Mosa2 version 02 03 Proced...

Page 16: ...urity Privacy settings a From the upper left corner of the screen click Apple menu System Preferences Security Privacy b Click the lock icon and enter the password if applicable c At Allow apps downlo...

Page 17: ...To connect the sensor using the Configuration Cable a Move other electrical devices minimum 1 m away from the computer b Connect the USB connector directly to the computer Mosa2 opens automatically a...

Page 18: ...t to it or manually disconnect then connect it Troubleshooting If the sensor is not detected by Mosa2 the issue might come from the short range wireless connection of the computer 1 Close Mosa2 2 Clic...

Page 19: ...you can see if fish are missing the trawl and passing above the headrope This way you can correct the trawl position Fewer pings are sent because they are distributed between the 2 directions As a res...

Page 20: ...ays click Apply after you change a setting and make sure there is a green check mark Procedure Click the tab Trawl Explorer Uplink Procedure From TE Uplink Frequency enter a frequency for the signal t...

Page 21: ...to the bottom becomes lower than 20 meters and if you entered a trawl opening lower than 20 m See next step to activate or not this feature Important This parameter must be the same in the sensor sett...

Page 22: ...s You can choose the same frequency for both because they do not transmit at the same time Important Frequency needs to be between 120 210 kHz Important Do not change ping frequency on a V3 sensor or...

Page 23: ...ived and sent back As a result if the signal is too much attenuated echoes target strength received from a target might not be as strong as they should be TVG is here to compensate this effect It uses...

Page 24: ...rt and enter the password copernic 2 Click the tab Trawl Explorer 3 From Option True Mode select a sequence from True Mode Option Select Config1 default this is the more appropriate sequence for a Tra...

Page 25: ...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 Usually for V1 versions of sensors the standard...

Page 26: ...a depth of at least 5 meters or in air with a space of at least 1 20 meters in front of the Down or Up sounder The sensor is connected to Mosa2 About this task Ringing is an oscillation of the signal...

Page 27: ...e graph 4 Select Adjust profile points on top of the graph 5 From the graph click and drag red line points above the gray and yellow curves a The red line should follow the same curve b Place the 4th...

Page 28: ...guration Note The values below the red line will not appear on the echogram and data above will appear as a red line on the echogram 6 Click Apply and make sure there is a green check mark 7 Repeat fo...

Page 29: ...attery Life 1000 32 Works for most conditions 60 75 hours Trawl Explorer 1800 58 Sensor is far from vessel e g more than 800 m depending on conditions high depth placed on codend High level of interfe...

Page 30: ...ve the test results on your computer Click Save to file to download the file Or click Copy to clipboard then press Cmd V on a word processor like Pages to paste the contents Exporting Sensor Configura...

Page 31: ...contents Exporting Sensor Configuration Settings for the Receiver You can export on an XML file the sensor settings that you configured on Mosa2 You can afterward use this file when adding the sensor...

Page 32: ...the contents 5 Change the name of the XML file saved on your computer Note When you export the sensor settings the XML file always has the same name Changing its name will prevent you from overwriting...

Page 33: ...BTE V2 FIRM126 03 01 23 or later all NBTE V3 FIRM128 04 02 28 or later 01 02 05 or later Adding the Sensor with a Configuration File You can add the sensor to the receiver with a configuration file th...

Page 34: ...node from the list on the left Nodes in green are already used Note Nodes are numbered locations for the sensor on the trawl gear Refer to the picture of the trawl to know the location of the node We...

Page 35: ...to add the sensor to the receiver with an xml configuration file exported from Mosa2 Procedure 1 From Scala Scala2 click Menu Expert Mode and enter the password copernic 2 Click menu again then Recei...

Page 36: ...play 8 Click Add Sensor The sensor is added to the receiver and displayed on the left side of the page The configuration page is displayed Configuring the Sensor Settings Important Make sure the setti...

Page 37: ...to receive more data but be aware they might be wrong data 3 This setting also helps detecting the sensor signal Leave default setting at Synchro 1 4 Enter the same frequency as the one entered for t...

Page 38: ...m TS in Mosa2 8 Do not change this setting Click Apply when you have finished Results The sensor is added to the system You should see incoming data from the control panels in Sensors Data You can now...

Page 39: ...nge of Sonar Data for 3 seconds until a rectangle appears and drag it to a page 3 Again in Trawl Explorer drag other data to the page such as depth trawl opening pitch and roll Each time you drop a da...

Page 40: ...y 5 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 The target stre...

Page 41: ...Trawl Explorer V7 System Configuration and Display 7 Deactivate the Customize mode when you have finished customizing pages click Menu Customize again 40...

Page 42: ...sensor on the headrope in order to see the trawl opening and fish entering the trawl You can also install it on the trawl tunnel to see fish going toward the codend Headrope Install the sensor on the...

Page 43: ...for footrope 6 detection 5 The signal is oriented toward the vessel 7 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 attac...

Page 44: ...Trawl Explorer V7 Installation The installation procedure is the same as the one for the headrope 43...

Page 45: ...oise interference 3 Pulses of the sensors PRP 4 Narrow band HDTE signals 5 Door sounder signals 6 Pause spectrum analyzer 7 Select hydrophone 8 Drag to adjust color scale 9 Reset the Max line 10 Marke...

Page 46: ...update the list 5 From the top left corner of the screen click Start Spectrum The graph at the bottom of the page shows three levels of noise in dBV 1 RealTime white level of noise recorded in real t...

Page 47: ...ck Reset Max to reset the dark blue line showing the maximum level of noise 10 To save data recorded by the spectrum in a txt file click Save FFT The FFT file lists for the entire bandwidth used by th...

Page 48: ...noise floor 3 Max dark blue shows the latest highest level of noise recorded It is useful to see on which frequencies are the sensors The acceptable average level of noise depends on the conditions di...

Page 49: ...ue line showing the maximum level of noise 10 To check the maximum mean and real time measures of noise level at specific frequencies a Right click the FFT plot and click FFT Marker b Click and drag t...

Page 50: ...battery whenever possible at any battery level Lithium ion batteries do not have a charge memory so they do not need full discharge cycles Procedure 1 Before charging the sensor wash with fresh water...

Page 51: ...ns red whatever the charge level 10 Make sure to disconnect the charger from the sensor when you switch off the charger or vessel s power supply If not the contact of the charger s pins with the shoul...

Page 52: ...charge or discharged for a long period of time or they will wear out Every 6 months put the sensor in charge for less than an hour Every 2 years The sensor must be returned to an approved Marport deal...

Page 53: ...in Security Privacy preferences Sensor cannot connect in wireless connection When trying to connect to the sensor by wireless connection the sensor appears on Mosa2 discovery area but you cannot click...

Page 54: ...plug Connect again the Configuration Cable Make sure the three pins are fully inserted inside the sensor Mosa2 does not automatically open when connecting the Configuration Cable Check that you see M...

Page 55: ...ed is too noisy change for a less noisy frequency see Configuring the Uplink Up and Down Settings on page 19 Important Do not forget to also change the frequency on the system web page accessible thro...

Page 56: ...lorer 2 If not from Trawl Explorer sensor data click hold Range of Sonar Data and drag it to the page The sounder in the transducer is damaged Contact the support service for repair Pitch and Roll are...

Page 57: ...ICELAND Marport EHF Fossaleyni 16 112 Reykjavik Iceland supporticeland marport com NORWAY Marport Norge A S Breivika Industrivei 69 6018 lesund Norway ggrimsson marport com SOUTH AFRICA Marport South...

Page 58: ...you configure boat codes make sure to respect the correct interval between frequencies see table above Codes BC CH Frequency FID Scanmar C 1 CH1 42833 45 C 1 CH2 41548 32 C 1 CH3 41852 35 C 1 CH4 4081...

Page 59: ...CH2 41690 33 C 5 CH3 41285 30 C 5 CH4 41060 28 C 5 CH5 42900 46 C 5 CH6 43400 51 C 6 CH1 39062 3 C 6 CH2 39375 7 C 6 CH3 39688 11 C 6 CH4 40000 15 C 6 CH5 40312 19 C 6 CH6 40625 23 C 7 CH1 38906 1 C 7...

Page 60: ...BTE sensors e g Speed Explorer Trawl Explorer Catch Explorer Door Sounder Example If the frequency of the sensor is 40kHz there should be no sensors between 39 8 40kHz and 40 40 6kHz Figure 4 HDTE nar...

Page 61: ...allocations We recommend to allocate frequencies between 34 and 56 kHz for wideband hydrophones and between 41 kHz and 44 kHz for narrowband hydrophones Echosounders are usually placed around 38 kHz...

Page 62: ...xample of a system with Spread sensors with positioning Catch sensors Trawl Explorer and Catch Explorer Example of a system for purse seining with a Seine Explorer and depth Seine sensors Bandwidth Ma...

Page 63: ...g configuration txt file 29 XML file 30 F FFT Export 45 Frequency 19 Frequency bandwidth 35 Frequency plan 57 I Indicators 12 Installation 41 Installation steps 13 L LEDs 12 M Maintenance Schedule 51...

Page 64: ...figuring sensor 34 Displaying in 37 Filters 35 Trawl gear location 34 Select orientation 24 Sensor location 41 Sounding Double Down 18 Down 18 Settings 19 Up 18 Spectrum 44 45 System requirements 32 T...

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