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Navico B&G Active Imaging HD Installation Manual

(thru-hull)
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Active Imaging
HD
™
(Thru-Hull)
Installation manual
English
www.bandg.com
www.lowrance.com
www.simrad-yachting.com

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Summary of Contents for Navico B&G Active Imaging HD

  • Page 1 Active Imaging ™ (Thru-Hull) Installation manual English www.bandg.com www.lowrance.com www.simrad-yachting.com...

  • Page 2: Warranty

    © 2024 Navico Group. All Rights Reserved. Navico Group is a division of Brunswick Corporation. Trademarks Reg. U.S. Pat. & Tm. Off, and ™ common law marks. Visit www.navico.com/intellectual-property to review the global ® trademark rights and accreditations for Navico Group and other entities.

  • Page 3: Table Of Contents

    CONTENTS 4 Introduction 5 In the box 5 Active Imaging HD (Thru-Hull, Single) 6 Active Imaging HD (Thru-Hull, Dual) 7 Tools and materials required 8 System overview 8 Wiring guidelines 9 Connect via sonar module 10 Connect directly to a compatible multi-function display 10 Dual installation 11 Mounting location 11 Hull material...

  • Page 4: Introduction

    INTRODUCTION Active Imaging HD (Thru-Hull) transducers allow: • Side imaging (SideScan) to show underwater structure to either side of your vessel • Down imaging (DownScan) to show underwater structure beneath your vessel • CHIRP sonar • DownScan FishReveal • SideScan FishReveal, when connected to a S3100 or S3100H sonar module (sold separately). The transducers come with fairing blocks that you cut to customise the installation to the hull of your boat.

  • Page 5: In The Box

    IN THE BOX Active Imaging HD (Thru-Hull, Single) 2x M10 nut 1x stem nut 1x M10 nylon washer 1x set screw for stem nut 1x small isolation sleeve 1x M30 nylon washer 1x fairing block 1x large isolation sleeve 1x anti-rotation stud 2x self-tapping screws*  1x transducer with 1.83 m (6 ft) cable  attached *Used to mount the fairing block to timber temporarily for cutting.

  • Page 6: Active Imaging Hd (Thru-Hull, Dual)

    Active Imaging HD (Thru-Hull, Dual) 1x port transducer with 1.83 m (6 ft)  2x stem nuts cable attached 1x starboard transducer with 1.83 m  2x set screws for stem nuts (6 ft) cable attached 1x transducer Y-cable 2x M30 nylon washers 2x fairing blocks 2x large isolation sleeves 4x M10 nuts 2x anti-rotation studs 2x M10 nylon washers  4x self-tapping screws* 2x small isolation sleeves *Used to mount the fairing blocks to timber temporarily for cutting.

  • Page 7: Tools And Materials Required

    TOOLS AND MATERIALS REQUIRED • Tools to measure deadrise angle • Timber to prepare fairing block for cutting, for example a 400 mm (16 in) length of 2×4 (2 in × 4 in, or  38 mm × 90 mm) • Band saw or table saw, and appropriate safety equipment • Drill and appropriate safety equipment • Drill bit for pilot holes, appropriate for your hull’s construction material •...

  • Page 8: System Overview

    SYSTEM OVERVIEW Wiring guidelines ⚠ WARNING: Before you start the installation, turn off the electrical power. If power is left on, or turned on during installation, fire, electrical shock or other serious injury may occur. • Do not run the transducer cable adjacent to radar, transmitter, large/high current carrying cables, high frequency signal cables, or near electric motors.

  • Page 9: Connect Via Sonar Module

    Connect via sonar module Connect the Active Imaging HD (Thru-Hull) transducer output cable to the black (imaging) sonar input on a S3100 or S3100H sonar module (not included). Connect the sonar module to a compatible multi-function display unit via Ethernet. ¼...

  • Page 10: Connect Directly To A Compatible Multi-Function Display

    Connect directly to a compatible multi-function display Active Imaging HD (Thru-Hull) transducers can connect directly to the black (imaging) sonar connector on a Lowrance HDS Pro or Simrad NSS 4 multi-function display. ® ¼ Notes: To use SideScan FishReveal, you also need a S3100 or S3100H sonar module. Sonar extension cables may be purchased separately if they are needed.

  • Page 11: Mounting Location

    MOUNTING LOCATION The installation involves creating holes in the hull of your vessel, so it is important to be certain of the transducer’s planned position before you make any holes or cuts. If you are installing an Active Imaging HD (Thru-Hull, Dual) system, the procedure is the same as the Active Imaging HD (Thru-Hull, Single) system, but carried out for both the port and starboard transducers.
  • Page 12 transducer on the starboard side. If the propeller is turning counter-clockwise, mount the transducer on the port side. If the hull has a steep deadrise, consider mounting dual transducers. A distance of 152–305 mm (6–12 in) between the transducer and the keel is recommended, to prevent a narrow valley between the fairing block and the keel that could cause a turbulent flow of water.
  • Page 13 Planing hull (inboard: shaft or pod drive) Install the transducer in front of the propellers and shafts, and between the two drives. Stepped hull Install the transducer on the first step back from the bow, as close to the profile change (step) as possible.  The transducer should be as central as possible. Steep deadrise hull: dual transducer installation If the hull of your boat has a steep deadrise angle, or structure such as a keel that partially obstructs the left or right side beams from a single transducer, a dual installation is needed.

  • Page 14: Fairing Blocks

    FAIRING BLOCKS The fairing block ensures the face of the installed transducer is parallel to the waterline. Before installing a thru-hull transducer and fairing block, the fairing block must be measured and cut to fit  against the hull. Both the top and bottom pieces of the cut fairing block are needed for the installation. The groove (A) around the fairing block is where the fairing block should be cut if you are installing the transducer on a flat (0° deadrise) section of hull. Cuts should not cross below the plane marked by (A).

  • Page 15: Measure Hull Deadrise

    Measure hull deadrise The angle of the fairing block cut depends on the deadrise of the hull at the mounting location. The deadrise is the angle measured upward from a line parallel to the water surface to the outer surface of the hull (A).

  • Page 16: Mount Fairing Block For Cutting

    Mount fairing block for cutting You will need to cut the fairing block into two pieces using a band saw or table saw. To guide your cut,  temporarily attach the fairing block upside down to a piece of timber (not supplied). Cut a piece of planed, square-edged timber slightly longer than the fairing block. Standard 2x4 timber  cut to a length of 16 in (~420 mm) works well. Place the fairing block’s widest surface on the widest face of the timber. Align the long edge of the fairing block flush against the long edge of the timber (A).

  • Page 17: Cut Fairing Block

    Cut fairing block ⚠ WARNING: To avoid damaging the transducer when using the saw, do not fit the transducer into the fairing block until after the fairing block is cut. ⚠ WARNING: Wear appropriate eye protection, ear protection and dust mask when drilling, cutting or sanding.
  • Page 18 Angle cut for starboard side installation ¼ Note: If you are mounting a dual transducer system on a sloping hull, the cuts on the port and starboard fairing blocks slope in different directions. Adjust the angle (D) of the saw table to match the deadrise at the mounting location. Note the arrow (B) showing the bow end of the fairing block.
  • Page 19 Angle cut for port side installation Adjust the angle (D) of the saw table to match the deadrise at the mounting location. Note the arrow (E) showing the bow end of the fairing block. Align the fairing block so it enters the saw blade stern end first.

  • Page 20: Installation

    INSTALLATION Drill holes in hull Inside the hull Inside the boat, place the top half of the cut fairing block in its intended position. The larger hole in the fairing block, for the transducer stem, is at the front (bow) end. The fairing block should be parallel to the keel, as best you can judge from the inside of the hull.

  • Page 21: Fit Anti-Rotation Stud

    Position the cut face of the upper part of the fairing block (E) against the outer hull of the boat (F), matching the large hole in the fairing block to the hole you just made in the hull. Make sure the fairing block is parallel to the boat’s keel.
  • Page 22 While another person supports the transducer outside the hull, move inside the hull. Place the top half of the fairing block in position over the stem and anti-rotation stud inside the hull. Confirm there are no  clearance issues. ⚠ WARNING: Do not install a mis-cut fairing block. Replace it instead. While the dry fit is in place, use masking tape to outline the top part of the fairing block where it  contacts the inner hull. (Leave a slight margin with the masking tape so the masking tape becomes the boundary of the cured sealant.) Outside the hull, with the bottom part of the fairing block in the correct position, use masking tape to outline the fairing block on the hull.

  • Page 23: Attach Transducer To Fairing Block

    Attach transducer to fairing block Outside the hull, flip over the bottom half of the fairing block so that the transducer pocket (A) is upward. Feed the transducer cable though the large hole (B). Generously coat the transducer pocket in the bottom half of the fairing block with a marine sealant suitable for below-waterline use, such as Sikaflex 291 or 3M™ 4200. ® Apply enough sealant so that when the transducer and fairing block are mated, the sealant pushes out to fill the gap between the edge of the transducer and the fairing block pocket.

  • Page 24: Attach Assembly To Hull

    Attach assembly to hull Flip the transducer and fairing block over, so the transducer stem is upward. Apply a uniform layer of sealant to the upper face of the lower part of the fairing block. This is the surface that will be in contact with the bottom of the hull. The layer of sealant should be approximately  1/16 2 mm ( in) thick.

  • Page 25: Fit Isolation Sleeves

    Fit isolation sleeves The isolation sleeves prevent the metal transducer stem and anti-rotation stud from contacting the hull, which could result in galvanic corrosion. The sleeves are also needed to ensure a secure fit. ¼ Note: Always install an Active Imaging HD (Thru-Hull) transducer with isolation sleeves fitted on the transducer stem and anti-rotation stud, even if the boat’s hull is not metal. Carry the isolation sleeves, the upper part of the fairing block, sealant, and other fittings to the inside of ...

  • Page 26: Install Top Of Fairing Block

    Install top of fairing block While on top of the boat, pass the transducer cable through the transducer stem hole (the larger hole) in the top part of the fairing block. Apply a thin layer of sealant to the hull (A) inside the masked off area. Coat the insides of the two holes in the top piece of the fairing block, and the cut face (bottom face) with marine sealant.

  • Page 27: Fit Washers And Nuts

    Fit washers and nuts Pass the transducer cable through the large nylon washer. Move the nylon washer (A) down over the transducer stem to contact the top surface of the fairing block. Place the small nylon washer (B) on the anti-rotation stud and move the washer down to contact the top surface of the fairing block.

  • Page 28: Dimensions

    DIMENSIONS The diagram shows the Active Imaging HD (Thru-Hull) transducer fitted to the uncut fairing block. The hull of the boat is not shown. The dimensions are the same for Active Imaging HD (Thru-Hull, Single) and Active Imaging HD (Thru-Hull, Dual) systems. 138 mm 138 mm (5.43 in) (5.43 in) 120.94 mm 132.44 mm (4.76 in) (5.21 in) 24 mm...

  • Page 29: Technical Specifications

    TECHNICAL SPECIFICATIONS The following specifications apply for Active Imaging HD (Thru-Hull, Single) and Active Imaging HD (Thru- Hull, Dual) transducer systems. Environmental Water temperature for operation 0°C to 35°C (32°F to 95°F) Storage temperature −30°C to 70°C (−22°F to 158°F) Physical Weight: Single transducer 1.62 kg (3.57 lb) Weight: Dual transducer (port) 1.59 kg (3.50 lb) Weight: Dual transducer (starboard) 1.40 kg (3.09 lb) Weight: fairing block (uncut) 0.55 kg (1.2 lb)

  • Page 30: Maintenance

    MAINTENANCE Check your transducer mounting hardware periodically for damaged or missing parts, and replace as required. Cleaning Use a mild household detergent to gently remove aquatic growth, oil, and dirt from the transducer surface. Take care to avoid scratches. Do not use an abrasive cleaner. If the fouling is severe, lightly wet-sand with fine-grade wet-dry paper.
  • Page 32 © 2024 Navico Group. All Rights Reserved. Navico Group is a division of Brunswick Corporation. ® Reg. U.S. Pat. & Tm. Off, and ™ common law marks. Visit www.navico.com/intellectual-property to review the global trademark rights and accreditations for Navico Group and other entities.

This manual is also suitable for:

Lowrance active imaging hdSimrad active imaging hd