Transducer Installation; General Considerations - Interphase Color Twinscope Operation Manual

Transducer Installation

The Color Twinscope comes standard with either a single or
twin thru-hull or with two transom mount forward scanning
transducers.
The Color Twinscope uses two phased arrays. In the single
thru-hull model both arrays are enclosed in a single
transducer. For transom mount applications two transducers
are required, each containing a phased array. One of the
phased arrays is positioned to scan vertically from straight
Scanning Directions.
ahead to directly below the boat, while the other array is
Vertical scan mode
positioned to scan forward horizontally from side to side. It is
shown above and
important to position the transducer so that it has as clear a
Horizontal mode
view as possible of the water directly below and ahead of your
below
boat, as indicated at left.
The scanning transducer(s) must be positioned properly so
that it scans in the proper direction (i.e. from in front of the
boat to the bottom below). The sketch at left shows the proper
orientation for both the transom mount or the thru-hull
transducer(s). NOTE THAT ON THE TRANSOM
MOUNT TRANSDUCERS, THE ROUNDED SIDE
MUST POINT FORWARD, AND ON THE THRU-HULL
TRANSDUCER, THE MORE BLUNT AREA MUST
POINT FORWARD.

General Considerations

Transom Mounted Transducers
DO NOT CUT OR SPLICE YOUR PHASED ARRAY
TRANSDUCER CABLE OR REMOVE THE 9-PIN
CONNECTOR BECAUSE THE SYSTEM
PERFORMANCE MAY BE SERIOUSLY DEGRADED.
THIS ACTION WILL VOID YOUR WARRANTY.
If you need a longer length cable than comes with the
Forward
transducer (30'), then purchase the optional 30' extension
cables, Interphase Part # 04-0014-008. It is recommended
that only one extension cable length (total of 60') be used as
additional extensions will decrease the effective power and
depth range. The Color Twinscope requires two extension
Thru-Hull Transducer(s)
cables - one for the vertical scan and one for the horizontal
1) Choose a location where there is the least amount of
acoustic noise, air bubbles or turbulence caused by the boat's
side view
movement. The transducer should not be located nearby or
especially directly behind the propeller.
Forward Direction
2) Choose a location where the transducer can be mounted so
that it will be level to the water's surface and will not be tilted
top view
to either side. Otherwise the transducer will not scan from the
surface ahead to directly beneath the boat.
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