Traditional Sonar and DSI Sonar Installation This document covers the installation of the transducer and display unit installation, which includes connecting the unit to power and installing the unit on the bracket mount. The first section of the document covers the installation of a traditional sonar skimmer transducer. DSI sonar installation is covered in the last section of the manual.
Traditional Sonar A. Select a transducer location Good locations To function properly the Skimmer 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. If the transducer is not placed in a smooth flow of water, interference caused by bubbles and turbulence may show on-screen as random lines or dots. The unit also could lose bottom signal when the boat is on plane. Too high Poor angle Poor locations 2.
Traditional Sonar 5. Check to see if the transducer will adjust so its face is parallel with the ground. Repeat this process until the transducer can be adjusted so its face is parallel with the ground. 3. Hold the transducer Align dot and letter "A". assembly against the transom. Look at dot A the transducer from the side. If it is parallel to the ground, then the “A” position is correct. C. Assembling the bracket 4.
Traditional Sonar Run the cable over the bolt and through the bracket. D. Attaching Transducer to Transom 1. A djust the transducer so its face is parallel with the ground and its center line is even with the bottom of the boat hull. 2. Hold the transducer and bracket assembly against the transom. When the transducer and bracket are properly aligned mark its position on the hull. Do not over tighten the lock nut; otherwise transducer may not kickup if it strikes an object. 3.
Traditional Sonar slots in the transducer mounting bracket to loosen the screws and slide the transducer up or down, if adjustments are necessary. Transducer epoxied to hull Epoxy Shoot-thru-hull Skimmer and Pod transducer installation Keel pad Make sure the Skimmer transducer is oriented so the nose of the transducer is facing the bow (front) of the boat. If the transducer has a built in temp sensor, it will only show the temperature of the hull, not the water temp.
Traditional Sonar transducer face is in contact with the hull. Also, make sure the cable is long enough to reach the sonar unit. Sand transducer face and mounting location Apply epoxy to transducer face and mounting location. To use shoot-thru-hull installation: 1. S and the inside surface of the hull, where the transducer is to be epoxied, and the face of the transducer. Sand the hull until it is smooth to the touch. The sanded area should be about 1-1/2 times the diameter of the transducer. 2. 4.
Traditional Sonar Installing transducer on trolling motor: 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. 1. A ttach the skimmer transducer to the bracket as shown in the diagram. Internal tooth washer Trolling motor Skimmer and Pod Installation Bolt The TMB-S trolling motor bracket (Part No. 51-45) is an optional accessory and is available through LEI Extras at www.lei-extras.com.
Traditional Sonar Connecting the unit to power 3. P osition the transducer so its face is pointing straight down when the trolling motor is in the water. 1. Connect the black wire to a ground. 2. A ttach a 3 Amp fuse (not included) to the end of the power wire and then connect the fuse to the positive (+) terminal on the battery. Adjustable strap Plastic ties (not included) 3. C onnect the Power cable to the Power port on the back of the display unit.
Traditional Sonar External GPS port Power port Speed/temp port; also used for NMEA 0183 Red (power) wire 3 Amp fuse (not included) Optional temp sensor Black (ground) wire 12V Optional paddlewheel speed/temp sensor 9 0.TWEETY INSTALL_SONAR_DSI.
Traditional Sonar NMEA 0183 Connection Diagram (GPS capable units only) Temp /Speed port NMEA0183 NDC-4 Yellow TX NMEA IN (+) Shield (ground) NMEA IN (-) Optional NMEA 0183 cable 10 0.TWEETY INSTALL_SONAR_DSI.
Display unit Mounting the display unit Before mounting the display unit mount, make sure there is nothing in the area that will obstruct the display unit when it is installed on the bracket. To install bracket mount: 1. P lace the bracket on the desired mounting surface and mark the four mounting holes. If you want to run the unit’s cables up through the mounting surface, make a mark in the center of the bracket mounting surface. 2. D rill pilot holes for the four mounting holes.
Display unit Removing the unit from the bracket 12 0.TWEETY INSTALL_SONAR_DSI.
DSI Sonar DSI Series Installation This document covers the installation of the DSI series transducer and display unit installation. WARNING: Make sure you read all installation instructions before drilling holes in your vessel. (Tools and Supplies — not included) Drill Marine grade below waterline sealant 1” (25mm) or 5/8” (15mm) drill bit Zip ties (trolling motor mount) #29 (0.
DSI Sonar Transducer bracket assembly Rubber washer Metal washer Ratchets Transducer bracket Bolt Transducer Rubber washer Metal washer Nut 14 0.TWEETY INSTALL_SONAR_DSI.
DSI Sonar Aligning transducer ratchets Ratchets are used to ensure the transducer is installed parallel to the ground. Good location 1. I nsert the ratchets in the bracket with the letter “A” aligned with the dot stamped on the outside of the transducer bracket. Too high Poor angle 2. S lide the transducer into the bracket and temporarily slide the bolt through the transducer bracket.
DSI Sonar 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 can not be adjusted so its face is parallel to the ground, remove the transducer and ratchets from the bracket. Reinsert the ratchets into the bracket, this time with the letter “B” aligned with the dot stamped in the bracket. Reassemble the transducer and bracket and place it against the transom. 2.
DSI Sonar 3. D rill the mounting holes for the transducer bracket. Use a #29 bit (for the #10 screws). 4. A ttach the transducer to the transom using the supplied screws (2). Shoot-thru hull The DSI transducer can be epoxied to the hull for shoot-thru installations. This is not a recommended installation method since it significantly degrades DSI performance. Using a flathead screwdriver, depress the release tab and slide off the transducer mount.
DSI Sonar Installing transducer on trolling motor: 1. Place the DSI transducer inside the trolling motor housing. 2. S lide the adjustable strap (hose clamp) through the slots in the trolling motor housing and slip the strap around the trolling motor. 3. P osition the trolling motor housing so its face is pointing down when the trolling motor is in the water. Slide the adjustable strap through these slots. 4. T ighten the adjustable strap securely to the trolling motor.
DSI Sonar DSI Wiring Diagram Transducer/ power cable Fuse (not included) DSI filter cable Optional speed sensor Battery DSI transducer 0.TWEETY INSTALL_SONAR_DSI.
NMEA 0183 Connection Diagram (GPS capable units only) Temp /Speed port NMEA0183 NDC-4 Yellow TX NMEA IN (+) Shield (ground) NMEA IN (-) Optional NMEA 0183 cable 0.TWEETY INSTALL_SONAR_DSI.
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Visit our website: www.lowrance.com *988-10169-001* 0.TWEETY INSTALL_SONAR_DSI.
