Chapter 2: Installation; About The Transducer; Fig. 2-1 Transducer Types - Raymarine L750 Operating Handbook

4

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
L750 Fishfinder: Installation and Operation Handbook
Thru-hull
transducer
thru-hull transducer
Low profile In-hull
transducer transducer
Fairing for
Transom-mount
transducer
Sidelooker
transducer