Raymarine L750 Operations Instructions download pdf (Page 12)

L750 Fishfinder: Installation and Operation Handbook

Chapter 2: Installation

The installation process has four parts:

• Mounting the transducer

• Mounting the display unit

• Connecting the cables for the transducer and power supply

• Calibrating the display unit

About the Transducer

Several different kinds of transducers can be used with this unit. The

“thru-hull” and “transom-mount” types are used most often. Other types

are shown in Fig. 2-1.

Fig. 2-1 Transducer Types

Most transducer types can measure the water depth. Some of the

transducers also have two other sensors: a paddle wheel which detects

the speed of the boat, and a sensor for the water temperature. The

display unit uses the speed information to calculate the distance the boat

has traveled.

The transducer is very important to the operation of the Fishfinder. It is

also important that you mount the transducer correctly. The transducer

Thru-hull

transducer

Fairing for

thru-hull transducer

Transom-mount

transducer

In-hull

transducer

Sidelooker

transducer

Low profile

transducer

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Raymarine L750 Operations Instructions Page 12