Lowrance HOOK-7 Operators Manual EN - Page 27

Installation, Keel offset, Water speed calibration, Temperature calibration, Reset water distance - gps

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Installation Before setting keel offset, measure the distance from the transducer to the bottom of the motor - see illustration. If, for example, the distance is 1 foot, it will be input as (minus) -1 foot. Installation menu 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/bottom of motor or from the transducer to the water surface. Water speed calibration Calibrates a paddlewheel speed sensor with speed data from a GPS source. 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. A: Keel offset (e.g. -1 foot) Transducer Transducer type Selects the type of transducer model attached to your unit. 27 Sonar Operation | HOOK series

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27
Sonar Operation |
HOOK series
Installation
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/bottom of motor or from
the transducer to the water surface.
Transducer
A: Keel offset (e.g. -1 foot)
Installation menu
Before setting keel offset, measure the distance
from the transducer to the bottom of the motor
- see illustration. If, for example, the distance is 1
foot, it will be input as (minus) –1 foot.
Water speed calibration
Calibrates a paddlewheel speed sensor with speed
data from a GPS source.
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 type
Selects the type of transducer model attached to
your unit.