Lowrance Elite-7 HDI Operation Manual - Page 27

Installation the distance from the transducer to the lowest part of the keel. If, for example, the keel is 3.5 feet below the transducer, it will be input as -3.5 feet. Installation menu Water speed calibration Calibrates a paddlewheel speed sensor with speed data from a GPS source. Keel Offset All transducers measure water depth from the transducer to the bottom. As a result, water depth readings do not account for the distance from the transducer to the keel or from the transducer to the water surface. Before setting keel offset, measure Temperature calibration Calibrates data from the transducer temperature sensor with data from a known temperature source to ensure the accuracy of temperature information. Reset water distance Reset Water Distance to zero. Transducer Keel Offset (-3.5 feet) Keel Sonar Operation | Elite-7 Transducer Type Selects the type of transducer model attached to your unit. 24