Table of Contents
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Transducer Installation
This document covers the installation of all 83/200kHz, 50/200kHz and Downscan transducers using
transom and shoot-thru hull installation methods, where applicable. This manual is divided into two
parts, covering traditional sonar and downscan sonar.
Make sure you read all the installation instructions before drilling holes in your vessel!
Mounting the transducer
Transducer location selection and installation are two of the most critical steps in sonar installation. To
function properly the transducer must be in the water at all times, and in a location that has a smooth flow
of water when the boat is moving.
Research
Before starting the installation of the transducer, it's advised to check the following:
•
Find out if the boat builder has a recommended installation location
•
Establish direction of rotation of the propeller(s)
•
W ith the boat traveling at cruising speed, watch the water flow behind the boat to find the
area with the smoothest flow (least bubbles)
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Table of Contents
Related Manuals for Lowrance Transducer
Summary of Contents for Lowrance Transducer
- Page 1 Transducer location selection and installation are two of the most critical steps in sonar installation. To function properly the transducer must be in the water at all times, and in a location that has a smooth flow of water when the boat is moving.
- Page 2 Tools and Supplies (not included) Drill Slotted-head (Phillips) drill bit Marine-grade above/below waterline sealant Adjustable wrenches or 1” (25mm) drill bit socket wrench Tools and Supplies (not included) - Shoot-thru hull (Pod and Skimmer) Alcohol wipes 60 and 160 grit sandpaper Marine-grade above/below waterline epoxy...
- Page 3 Select a transducer location The primary aim is to stay clear of propeller and hull-generated turbulence, while mounting the transducer as close to the center of the vessel as possible. 1. Avoid mounting within 3.3’ (1m) to port of propeller 2. Conventional clockwise propeller rotation 3. Avoid mounting within 3” (7.5cm) to starboard of propeller 4. Best mounting location - undisturbed water flow 5. Planing strake - avoid mounting behind here NOTE: Reverse the distance guides (1 &...
- Page 4 NOTE: Boats with strakes or ribs on the hull can create large amounts of turbulence at higher speeds. A good transducer location on these types of boats is between the ribs closest to the engine. NOTE: If the transducer is not placed in a smooth flow of water, interference caused by bubbles and turbulence may show on-screen in the form of random lines or dots.
- Page 5 Removing the transom slide mount The slide can be removed from the DSI transducer by depressing the release tab with a flathead screw- driver and sliding off the transom slide mount. The HDI 83/200kHz transom slide mount is removed by carefully pulling out slide mount and then pulling down on the slide mount.
- Page 6 One-piece bracket assembly Conventional 83/200kHz, HDI 83/200kHz & DSI 455/800kHz Transducer Rubber bracket washer Ratchets Metal washer Bolt For HDI Transducer transducers, torque bracket assembly between Metal 10 to 12 in lb (.83 washer to 1 ft lb) Rubber washer...
- Page 7 Conventional 50/200kHz Metal Transducer bracket washer Metal Bolt washer Ratchets Transducer Rubber washer Ratchets...
- Page 8 Two-piece bracket assembly HDI 50/200kHz Transducer bracket Metal washer Metal Bolt washer Transducer Rubber washer Ratchets...
- Page 9 2. S lide the transducer into the bracket and slide the bolt through the transducer bracket. 3. H old the transducer assembly against the transom. Look at the transducer from the side. If it is parallel to the ground, then the “A” position is correct. 4. I f the transducer face is not parallel to the ground, repeat Steps 1-3 aligning letter “B” aligned with the dot stamped in the bracket. 5. C heck to see if the transducer will adjust so its face is parallel with the ground. Repeat this process until the transducer face is parallel to the ground.
- Page 10 Transom mount The transducer should be installed parallel with the transom’s waterline, not the bottom of the boat (deadrise). NOTE: Ensure the entire bottom surface of the transducer hangs at least couple of millimeters (1/16ths of an inch) lower than the bottom of the hull.
- Page 11 NOTE: Check that there is nothing on the other side of the mounting surface that may be damaged by drilling. Attach the transducer to the transom, using supplied stainless steel screws. Drill a 1” (25mm) hole above the waterline, large enough to pass the connector through. Secure the cable to the hull at regular intervals using cable P clips or saddles and ensure that moving parts such as an outboard motor or boarding ladder can’t snag the cable.
- Page 12 If performance does not improve with tilting, try adjusting the height of the transducer relative to the transom of the boat. If the transducer is too high it may be seeing cavitation caused by the trailing edge of the transom.
- Page 13 For shoot-thru-hull applications, many boat hulls have a flat keel pad that offers a good transducer mounting surface. Make sure the Skimmer transducer is oriented so the nose of the transducer is facing the bow (front) of the boat.
- Page 14 (Part No. 106-98). 4. P ress the transducer into the epoxy, turning it to force out any air bubbles from under the transducer face. Make sure there are no air pockets between the transducer and the hull. 5. S top pressing when it bottoms out on the hull. Apply pressure to hold the transducer in place while the epoxy sets. Allow the epoxy to set before moving the boat. 6. W hen finished, the face of the transducer should be parallel with the hull with a minimum amount of epoxy between the hull and transducer. NOTE: If the transducer has a built-in temp sensor, it will only show the temperature of the hull, not the water temp.
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Page 15: Contact Information
Contact information Customer Service: 1-800-628-4487 (8 a.m. to 5 p.m. Central Standard Time, M-F) (Canada) 1-855-361-1564 canada@navico.com (8 a.m. to 5 p.m. Eastern Standard Time, M-F) Ordering Accessories http://store.navico.com/ Visit our website www.lowrance.com... - Page 16 Visit our website: www.lowrance.com Copyright © 2013 *988-10418-001* All Rights Reserved Navico Holding AS...