External Mounting; Inclination Of The Transducer Face - Simrad 38-200 COMBI D - INSTALLATION REV A Installation Manual

Installation manual

External mounting

This transducer has a streamlined housing, and it is designed for
installation outside the hull.
This transducer is mainly used on smaller vessels. A location
approximately 0.5 m aside from the keel may be adequate for
the passage of water between the keel and the transducer. The
figures illustrate external mounting of transducers on steel hulls
and on wood or polyester hulls respectively.

Inclination of the transducer face

Incline the transducer face approximately 1-2 degrees (D), so
that the flowing water meets it directly. This assures laminar
water flow. Mounting screws must not be extruding from the
transducer, and the space around the screws must be filled with
a compound (C) and/or a locking ring.
Smooth surface
Ensure that the surface of the transducer face, the hull plating
and putty around the transducer is as even and smooth as
possible. Obstructions on these surfaces will create problems
with turbulant flow.
7
851-165215 / Rev.A