SI-TEX SVS-650
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About Transducers:
There are several different kinds of transducers that can be used with the SVS-650.
The “Thru-Hull” and “Transom-mount” types are used most often. 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 thru the water, and a sensor for the water temperature. The
transducer is very important to the overall operation of the fish finder. It is also very important that the
transducer be installed correctly. The transducer will give the most reliable readings if it looks into
water which is smooth and undisturbed. If you install the transducer so air bubbles or turbulence flow
across the face of the transducer, the overall system performance will be reduced.
There are three important rules for placing any type of transducer:
1) The transducer should be continuously covered by water when the boat is moving. If the
transducer is mounted too close to the side of the boat it may be exposed when the boat is turning or
up on plane
2) The transducer should be located where turbulence or air bubbles will not pass across the face of
the transducer. Do not locate the transducer behind any running strakes, intakes, or thru-hull fittings
which will create turbulence.
3) The transducer should be located where it will not be affected by the wash from the propeller(s)
Selecting the correct type of Transducer:
Before you begin the installation, double-check to be sure that you have the correct type of transducer
for your boat. Also, make sure that the transducer has the correct connector installed and is the
correct frequency for the SVS-650.
Use a Thru-Hull transducer if:
Your boat has a straight-shaft inboard engine(s). This type of transducer is installed via a hole drilled
thru the hull.
Use a Transom-mount transducer if:
Your boat has an outboard or inboard/outboard engine(s) only. This type of transducer must be
mounted ahead of or beside the propeller(s) Do not use a transom mount on an inboard boat.