Simrad ES120-7C - REV D, Installation Manual, Page: 61 / 98

330254/B
59
The transducer cable must be properly fastened at the bottom of the drop keel, and supported
during the lowering and lifting the drop keel.
A
Tubular flow
B
Laminar flow
C Air bubbles in the water
D
Drop keel (extended)
E
Several transducers can be installed at the bottom of the drop keel
Using the clamping and the mounting ring
This circular transducer is designed to be mounted using a clamping and a mounting ring.
The mounting ring is welded to the hole prepared for the transducer. Bolts through the
clamping ring into the mounting ring secure the transducer in place.
Note
Make sure that the Forward direction on transducer points in the forward direction of
the vessel.
Suitable mounting and clamping rings can be provided by Kongsberg Maritime. The
drawings are available for local manufacturing. The drawing (normally in AutoCad format)
can be downloaded from our website.
• https://www.simrad.com
Smooth surface is important
Make sure that the surface of the transducer face, as well as the plating and putty around
the transducer is as even and smooth as possible.Obstructions on these surfaces will create
problems with turbulent flow, and may cause noise.
Transducer installation principles