Airmar Sealcast CM422 Installation Instructions & Owner's Manual

OWNER'S GUIDE & INSTALLATION INSTRUCTIONS
Cavity or Welded-tank Mount:
Sealcast
Model: CM422
Patent http://www.airmar.com/patent.html
WARNING: The transducer must be professionally installed
using accepted practices. The cavity or welded tank must be
strong and watertight to reduce the risk of property damage,
personal injury, and/or death.
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 glasses, a dust mask,
and ear protection when installing.
WARNING: Use marine sealant to seal the hull and hold
the transducer firmly in place. When the boat is underway,
especially at high speeds, water will enter any gaps and
push against the transducer with considerable force.
WARNING: A faceplate is required to secure the
transducer to the hull. When the boat is underway,
especially at high speeds, water will push against the
transducer with considerable force.
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: 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 power sand or pressure wash the
transducer. It may weaken the structure or damage the
internal components.
1kW
Depth Transducer
™
with Temperature Sensor
Record the information found on the cable tag for future reference.
Part No._________________Date___________Frequency________kHz
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.
Applications
• Cavity mounting recommended for fiberglass hulls.
• Cavity mounting recommended for high-speed boats.
Tools & Materials
NOTE: Making a fiberglass cavity in the hull, a faceplate, or a
welded tank requires additional tools and materials not listed.
Safety glasses
Dust mask
Ear protection
Scissors
Masking tape
Electric drill
Drill bits and hole saws:
Hole saw for cavity
Hole saw for faceplate opening
Pilot hole
Cable hole
Sandpaper (coarse grit 120)
Tack cloth
Marine sealant (suitable for below waterline)
Grommet(s) (some installations)
Cable ties
Water-based anti-fouling coating (mandatory in salt water)
6mm
(1/4")
120mm or 4-3/4"
95mm or 3-3/4"
3mm or 1/8"
large enough to accommodate
the bushing