Simrad ES120-7C - REV D, Installation Manual, Page: 56 / 98

54
330254/B
A
Keel
B Transducer blister
C
Horizontal distance between the
keel and the blister
D Vertical distance between the
bottom of the keel and the blister
surface
Observe the horizontal and vertical
distances between the keel and the
transducer blister. (
C + D )
On a medium sized vessel, the horizontal
distance (
C
) should be approximately 1
meter.
The vertical distance must in general be as small as possible. This is important to prevent
the keel from shadowing the transducer beam.
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.
Mounting screws or bolts must not be extruding from the transducer or the plating
immediately around it.
Simrad ES120-7C Installation Manual