User manual LOWRANCE TH-FLWBL TRANSDUCER

[. . . ] 988-0154-081 Installation Instructions for Through-Hull Transducer The TH-FLWBL is an 11°, 200 kHz transducer designed for use with Lowrance blue-connector sonar units. This instruction sheet will help you install your TH-FLWBL through-hull transducer. Read these instructions carefully before attempting the installation. [. . . ] For saltwater use, you will also need a water-based antifouling paint to prevent sea growth. (Supplies not included. ) Selecting a Transducer Location The transducer's mounting location is an important factor in its performance. Consider the following issues carefully before beginning installation. Water flow: The transducer should be located in an area that has a smooth water flow. This is typically close to the centerline of the hull. Inboard powered hulls: On inboard powered hull boats, you should install the transducer ahead of the propeller shafts and rudders. This is typically an amidships location ahead of the engine's water intakes. Transducer For Lowrance and Eagle Products Pub. 988-0154-081 © Copyright 2004 All Rights Reserved Printed in USA 051204 4 LEI Extras, Inc. Engine water Rudders intakes Mount the transducer amidships, forward of any fittings on the hull that will cause excessive water noise. Planing hulls: On planing hull boats with outboard motors or stern drives, you should install the transducer close to the transom to ensure it will be in the water at all times. 4. Noise: When choosing a transducer location, keep in mind that ambient noise is always present, from the mechanical noise made by the engine(s), the movement of the hull through the water, and other sources. These sound waves can interfere with the operation of the transducer. While ambient noise can't be eliminated, careful selection of a mounting location can minimize the effect of vessel-generated noise. The lower the noise level, the greater the sonar's unit's usable sensitivity. Hull Apply adhesive liberally Spread adhesive around the lip of the transducer housing and up around the lower part of the sensor as shown. 5. Surface obstructions: don't mount the transducer behind other through-hull fittings. Such obstructions will interfere with the smooth flow of water necessary for a clean sonar reading. 6. Clearance: Make sure there is enough room on the inside of the hull to install the transducer and there is clearance to attach the nut. NOTE: This transducer is designed to perform best in boats with a hull deadrise of 10° or less. The transducer will work at greater angles, but it will be sending signals off at an angle instead of straight to the bottom, so it won't return true depth readings. The higher angle will also prevent the transducer from performing to its full depth potential. 3. [. . . ] The TH-FLWBL transducer requires a 2" (50. 8 mm) hole. Using a hole saw, drill from the outside of the hull to prevent the gel coat from cracking on fiberglass hulls. Use eye and face protection when drilling the hole. [. . . ]