Standard Horizon DS41 owner manual Transducer Installation, General

Transducer Installation	• Do not expose a plastic thru-hull transducer
Note:	to solvents. Strong solvents such as
	acetone and methylene chloride attack
The installation of a transducer is a job
	many types of plastics and dramatically
for a professional boat yard that performs
	reduce the strength of plastic parts.
numerous installations.
	Accumulation of grease or grime may be
The following is an informational guide-
	removed with a damp cloth and mild
line on the installation of transducers.
	household detergents.
General

Correct installation of the transducer is essential for optimum operation of the instrument. Select a location for the transducer using the following guidelines:

•Non-aerated water (bubble-free) water must flow across the face of the transducer at all speeds if good depth performance is to be achieved.

•Never position the transducer directly behind shafts, struts, fittings and paddlewheel speed transducers because water turbulence underneath the transducer face can adversely affect depth performance.

Note:

Transducer cable may be extended up to 15 additional feet but depth performance may be affected.

Use 22 gauge, two-wire, shielded cable, using RCA/Phono connectors, or use EX375D 15 foot extension cable.

•Keep the transducer cable away from the engine to reduce electrical interference.

•If the boat has bottom paint applied and has been used, inspect for areas where paint erosion has taken place. Erosion is caused by turbulent water and these areas are unsuitable transducer mounting locations.

•It is very important that the mounting location have reasonable access from inside the vessel since the transducer will require tightening from inside the hull.

•Plastic thru-hull transducers should be mounted in fiberglass and metal hulls only. Under no circumstances should they be used in wood hulls. Swelling of the wood may overstress the plastic housing.

•Do not use a fairing block of any type when mounting the plastic low profile transducer. Hauling or impact can cause structural failure of the housing assembly.

DS41 Owner’s Manual11