Marport Trawl Explorer User manual
Trawl Explorer
Service Manual
Contents | ii
Contents
Legal.................................................................................................4
History...........................................................................................................................................................................4
Copyright......................................................................................................................................................................5
Disclaimer.................................................................................................................................................................... 5
Introduction and Presentation..........................................................6
Introduction................................................................................................................................................................6
Applications.................................................................................................................................................................7
Safety Guidelines...................................................................................................................................................... 8
Description.................................................................................................................................................................. 9
Firmware..........................................................................................................................................................9
Technical Specifications............................................................................................................................ 9
Main Parts..................................................................................................................................................... 10
Operational Mode Indicator....................................................................................................................13
Installation Steps....................................................................................................................................................14
Sensor Configuration...................................................................... 15
Installing Mosa2......................................................................................................................................................15
Connecting the Sensor to Mosa2..................................................................................................................... 16
Sounding Modes......................................................................................................................................................18
Configuring the Uplink, Up and Down Settings....................................................................................... 19
Uplink.............................................................................................................................................................. 19
Up/Down Soundings..................................................................................................................................19
Target Strength........................................................................................................................................... 21
About Time Variable Gain...................................................................................................................................22
Configuring Measurement Sending Sequence and True Mode.............................................................23
Configuring the Noise Floor.............................................................................................................................. 25
Changing the Transducer and End Cap Orientation................................................................................ 26
Changing the Transducer Orientation...............................................................................................26
Changing the End Cap Orientation.....................................................................................................28
Selecting A1 Board Orientation.........................................................................................................................30
Calibrating the Sensor for Target Strength Value..................................................................................... 31
Canceling the Ringing.......................................................................................................................................... 35
Configuring the Uplink Power.......................................................................................................................... 37
Testing Measures....................................................................................................................................................37
Updating the Sensor............................................................................................................................................. 38
Downloading the Firmware................................................................................................................... 39
Updating the Sensor................................................................................................................................. 39
Exporting Sensor Configuration Settings for Record Keeping.............................................................40
Exporting Sensor Configuration Settings for the Receiver.................................................................... 41
System Configuration and Display..................................................43
Contents | iii
Adding the Sensor to the Receiver..................................................................................................................43
Adding the Sensor with a Configuration File................................................................................. 43
Adding the Sensor Manually.................................................................................................................45
Adding the Sensor to the Receiver......................................................................................... 45
Configuring the Sensor Settings............................................................................................. 46
Configuring the Sensor Display on Scala/Scala2.......................................................................................48
Installation..................................................................................... 52
Installing a Trawl Explorer on the Trawl.....................................................................................................52
Servicing and Maintenance.............................................................55
Interference Check.................................................................................................................................................55
Spectrum Analyzer Display....................................................................................................55
Checking Noise Interference................................................................................................. 56
Checking Noise Interference................................................................................................. 57
Charging the Sensor............................................................................................................................................. 60
Maintenance..............................................................................................................................................................61
Cleaning the Sensor..................................................................................................................................62
Maintenance Checklist.............................................................................................................................63
Replacing Parts...........................................................................................................................................64
Removing and Putting Back the Housing............................................................................64
Replacing the Batteries............................................................................................................... 65
Replacing the Shoulder Bolts................................................................................................... 68
Replacing the Pressure Sensor.................................................................................................70
Replacing the Temperature Sensor........................................................................................ 74
Replacing the Transducer.......................................................................................................... 76
Troubleshooting......................................................................................................................................................80
Firmware downloaded on DealerWeb cannot be read by Mosa2............................................ 80
Mosa2 does not open due to error message...................................................................................80
Sensor has difficulty connecting to Mosa2.....................................................................................80
Sensor cannot connect in wireless connection..............................................................................80
Data in Scala/Scala2 is wrong...............................................................................................................81
Echogram is fixed and blue...................................................................................................................82
Pitch and Roll are wrong........................................................................................................................82
Support Contact...................................................................................................................................................... 83
Appendix.........................................................................................84
Frequency Plan....................................................................................................................................................... 84
Appendix B: Examples of Installations for a Target Strength Calibration...................................... 89
Index.................................................................................................................92
Trawl Explorer | V5 | Legal
Legal
History
V1 05/09/17 First release
V2 03/09/18
New topic:
•About Time Variable Gain on page 22
•Canceling the Ringing on page 35
•Frequency Plan on page 84
•Appendix B: Examples of Installations for a Target Strength Calibration on
page 89
Improved topic:
•Replacing Parts on page 64: improved layout and pictures.
V3 07/06/18
New topic:
• Troubleshooting: Sensor cannot connect in wireless connection on page
80
Improved topic:
•Interference Check on page 55: more information about Spectrum page.
V4 11/30/18
Improved topic:
•Frequency Plan on page 84: drawings have been changed, frequencies
are now allocated between 34 kHz and 36 kHz and frequency ranges of
narrowband and wideband hydrophones are indicated.
V5 07/16/20 Now documents Mosa2 version 02.03, Scala version 01.06.34 and Scala2
version 02.02.
| 4
Trawl Explorer | V5 | Legal
Copyright
© 2020 Marport. All Rights reserved.
No part of this document may be reproduced, stored in a retrieval system or transmitted in any
form by any means; electronic, mechanical, photocopying or otherwise, without the express
written permission from 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.
Disclaimer
Marport endeavors to ensure that all information in this document is correct and fairly stated, but
does not accept liability for any errors or omissions.
The present user guide is applicable for the following versions:
• Scala: 01.06.06-01.06.34 / Scala2: 02.02
• Mosa2: 02.03
Patents apply to products. U.S. Patents 9,772,416; 9,772,417
| 5
Trawl Explorer | V5 | Introduction and Presentation
Introduction and Presentation
Read this section to get a basic knowledge of your Trawl Explorer sensor.
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.
Thanks to the sounder you will see:
• On the echogram, the trawl opening and 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 sensor to the seabed or footrope
The Trawl Explorer can adapt to different types of fishing methods. For example, you can fully
configure the sounding modes in accordance with your fishing method to have optimum results.
On the latest version of Trawl Explorer, the echogram displays target stength values that helps you
to identify fish.
Note:
These labels tag topics or actions that are specific to Scala and/or Scala2.
Depending on the version you have, you may follow either one of these labels.
| 6
Trawl Explorer | V5 | Introduction and Presentation
Safety Guidelines
Important: To ensure proper and safe use of this equipment, carefully read and follow the
instructions in this manual.
Basic good practices
When using the product, be careful: impacts can cause damage to the electronic components inside.
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
cause damage to the components or void the warranty.
Only qualified Marport dealers can do maintenance and repairs on internal components of the
sensors.
Precautions
Warning: In case of water ingress in the product, do not charge it: battery may vent or
rupture, causing product or physical damage.
| 8
Trawl Explorer | V5 | 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 FIRM128
Autorange feature no yes yes
Target strength on echograms no no yes
Technical Specifications
Uplink frequency 30 to 60 kHz
Range to vessel up to 2500 m*
Sounder broadband frequency Configurable 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 images/second
Pitch angle ±90°
Roll angle V1 ±90°; V2, V3 ±180°
Pitch & roll accuracy ±0.1°
Depth resolution 0.1m with 0.1% accuracy
Temp measurement range -5° C to +25° C
Temp accuracy ±0.1° C
Battery type Lithium-Ion
Typical battery life: 30-75 hours †
Standard: 8-12 hours ‡
Charging time Fast Charge: 4 hours
Weight in air (with housing) 16 kg
Weight In water (with housing) 4.1 kg
Warranty 2 years (Sensor & Battery)**
*Reference only. Depends on functions enabled. / † Depends on sensor uplink power. / ‡ Based on
average charging time. / **Marport Standard Marine Limited Warranty
| 9
Trawl Explorer | V5 | 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 @ 200 kHz
-3dB 26° 24° 22°
Outline dimensions
146 mm
500 mm
400 mm
Main Parts
External View
1. Retainer screw
2. Model/serial
number
3. Metal strap
4. Transducer
5. Stabilizer board
6. Pressure sensor
7. Temperature sensor
8. Positive charge
9. Negative charge
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 not remove the shoulder bolts from the outside of the sensor
It may damage the components.
| 10
Trawl Explorer | V5 | Introduction and Presentation
Exploded View
1. Transducer
2. End cap
3. PCBA
4. Batteries
5. Sensors
PCBA Connectors
1. Uplink (C)
2. Uplink LED
3. Down LED
4. Up LED
5. Pressure and temperature
6. Water-switch
7. Up (B)
8. Down (A)
9. Battery
The name of the sounding channel is labeled on its cable and its location is written on the PCBA.
• Channel A = Down
• Channel B = Up
• Channel C = Uplink
| 11
Trawl Explorer | V5 | Introduction and Presentation
Operational Mode Indicator
Indicators from the transducer
State Situation Operation 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
Configuring Sensor is out of water. Configuration via wireless
communication.
Turns off after 10 minutes
without user action.
Flashing green
| 13
Trawl Explorer | V5 | Sensor Configuration
Sensor Configuration
Learn how to configure Trawl Explorer sensor settings.
Note: This guide refers to the following versions of Mosa2: 02.03. If you use another
version, the visual interface and options may vary.
Installing Mosa2
If Mosa2 is not already installed on the computer, you need to install it to configure the sensor.
About this task
Note: Mosa2 can only be installed on a macOS operating system.
Procedure
1. Go to the DealerWeb page: https://dealerweb.marport.fr/Default.aspx.
2. Select Sensors > Tools.
The list of available Mosa2 software versions is displayed. The list begins with the latest
versions.
3. Click Download next to the version you want.
4. Click the downloaded zip.
5. From the installation window that appears, drag Mosa2 icon to Applications.
Mosa2 is added to the Launchpad .
6. From the Launchpad , drag Mosa2 icon to the Dock at the bottom of the screen.
Click its icon in the Dock to open it.
7. Systems with a Mac Pro under OS X Mavericks need to launch a script that is in the installation
package. This operation has to be done only once:
a) Click the magnifying glass from the top right corner of your screen and type Terminal.
b) Select Terminal from the results.
| 15
Trawl Explorer | V5 | Sensor Configuration
c) In the terminal, enter sh /Volumes/Marport-Mosa2/MosaPatchForMavericks.sh
d) When prompted, enter the administrator password.
e) Close the terminal.
f) Open Mosa2 to check if the script has worked. If Mosa2 does not open, it means the script
has not worked. Repeat the procedure and make sure you enter the correct command line.
8. If you have an error message when trying to open Mosa2, change the Security & 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 downloaded from, select Anywhere, then close the dialog box.
d) If you are under macOS Sierra, Anywhere option is not displayed by default. To display
Anywhere:
• Click the magnifying glass from the top right corner of your screen and type Terminal.
•Click 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 Mosa2
To configure the sensor, you need to connect it to Mosa2 using a wireless communication.
Procedure
1. Open Mosa2.
2. Connect the water-switch.
The LED flashes red.
3. Disconnect the water-switch.
After a few seconds, the LED flashes green.
| 16
Trawl Explorer | V5 | Sensor Configuration
4. Open Mosa2, then wait a few seconds for the sensor to be recognized. When it appears on the
discovery page, click .
Results
The sensor configuration page is displayed.
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. Click the short-range wireless symbol in the top-right corner of the menu bar while
holding the Shift (#) + ALT (#) keys on your Mac's keyboard.
3. Click Debug > Remove all devices.
4. Open Mosa2.
What to do next
You can now configure the sensor settings.
If you want to disconnect the sensor, click Menu > Disconnect.
| 17
Trawl Explorer | V5 | Sensor Configuration
Sounding Modes
The sensor can send pings according to three different sounding modes.
Down 1
Sensor sends pings towards down direction (1) 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.
This mode is recommended for better quality echogram
images.
Down 1 + Up
Sensor sends pings towards down (1) and up (2) directions.
With the down sounding, you can see fish going into the
trawl. With the up sounding you can see if fish are missing
the trawl and passing above the headline. This way, you can
correct the trawl position.
Fewer pings are sent because they are distributed between the
2 directions. As a result, data arrives slower to the receiver
and echograms are of lesser quality.
Down 1 + Down 2
Sensor sends 2 consecutive pings towards down direction (1
and 2).
This mode is useful if you need to test two different pings
towards the down direction. For example, sending one short
and one long ping, or sending one low frequency and one
higher frequency ping.
Like down + up mode, fewer pings are sent because they are
distributed between the two different down soundings. As a
result, data arrives slower to the receiver and echograms are
of lesser quality.
| 18
Trawl Explorer | V5 | 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 Mosa2.
About this task
Remember: Always 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 toward the vessel.
Important: This parameter must be the same in the sensor settings in Scala/Scala2.
Up/Down Soundings
Procedure
1. From NBTE Setup Options, select the sounding mode (see Sounding Modes on page 18 for
more information).
2. From Down and Up Sounding Range, select the range according to how many meters you want
to see under the sensor.
| 19
Other manuals for Trawl Explorer
2
Table of contents
Other Marport Marine Equipment manuals
