Airmar CM422—Welded-Tank Mount - Manual

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Applications
• Keel mount in fiberglass hull only.
• Keel mount recommended for high-speed boats.
Hole Saw
Hole Saw 95mm or 3-3/4”
Mounting Location
CAUTION: Do not mount in line with or near water intake or
discharge openings or behind strakes, fittings, or hull irregularities
that will disturb the water flow.
Choose a Location
• In a cool well-ventilated area away from the engine to avoid
overheating.
• Where the transducer will be in contact with the water at all
times.
• Where the water flowing under the hull is smoothest with a
minimum of bubbles and turbulence (especially at high speeds).
Do not mount the transducer near water intake or discharge
openings; or behind strakes, fittings, or hull irregularities.
• Where the transducer beam will not be blocked by the propeller
shaft(s).
• Away from interference caused by power and radiation sources
such as: the propeller(s) and shaft(s), other machinery, other
echosounders, and other cables. The lower the noise level, the
higher the echosounder gain setting that can be used.
• Where there is working space inside the vessel.
WARNING: The transducer must be professionally
installed using accepted practices. The pocket must be
strong and watertight to reduce the risk of property
damage, personal injury, and/or death.
INSTALLATION INSTRUCTIONS OWNER’S GUIDE &
Keel Mount
Depth Transducer
Model: CM422
US Patent 7,369,458. UK 2 414 077
Record the information found on the cable tag for future reference.
Part No._________________Date___________Frequency________kHz
Follow the safety precautions below for optimal
product performance and to reduce the risk of
property damage, personal injury, and/or death.
WARNING: Always wear safety goggles and a dust
mask when installing.
WARNING: Immediately check for leaks when the
boat is placed in the water. Do not leave the boat
unchecked for more than three hours. Even a small
leak may allow considerable water to accumulate.
CAUTION: Do not install in the engine compartment or
other hot place. The transducer may fail if it overheats.
CAUTION: Always operate the transducer in water.
Operating in air will allow the transducer to overheat
resulting in failure.
CAUTION: Orient the transducer so the bosses on the
top are facing fore and aft—parallel to the centerline of
the boat.
CAUTION: The transducer must be flush with the
bottom of the hull for good performance.
CAUTION: Never pull, carry, or hold the transducer by
the cable. This may sever internal connections.
CAUTION: Never strike the transducer.
CAUTION: Never use solvents. Cleaners, fuel, sealants,
paint, and other products may contain solvents that can
damage plastic parts, especially the transducer’s face.
IMPORTANT: Please read the instructions completely
before proceeding with the installation. These
instructions supersede any other instructions in your
instrument manual if they differ.