Airmar B744V - Manual

Follow the precautions for optimal product
performance and to reduce the risk of property
damage, personal injury, and/or death.
WARNING: A High-Performance Fairing must be
installed following the installation instructions that
accompany the fairing. A High-Performance Fairing
requires an anti-rotation bolt to keep the fairing from
turning while the boat is underway.
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.
WARNING: B744V, B744VL—The O-rings must be
intact and well lubricated to make a watertight seal.
WARNING: B744V, B744VL—Always attach the
safety wire to prevent the insert from backing out in the
unlikely event that the cap nut and/or insert nut fails or
is screwed on incorrectly.
WARNING: B744V, B744VL—The valve is not a
watertight seal. Always install the paddlewheel insert or
the blanking plug secured with the insert nut and safety
wire for a watertight seal.
WARNING: B744V, B744VL—Do not remove the CAP
nut. The valve assembly will come out. The insert/blanking
plug cannot be secured without the valve assembly.
CAUTION: Always operate the transducer in water.
Operating in air will allow the transducer to overheat
resulting in failure.
CAUTION: Never mount a bronze housing in a metal
hull because electrolytic corrosion will occur.
CAUTION: Never install a metal housing in a vessel
with a positive ground system.
CAUTION: Never, pull, carry, or hold the sensor by its
cable. This may sever internal connections.
CAUTION: Never strike the sensor.
CAUTION: Never use solvents. Cleaner, fuel, sealant,
paint and other products may contain solvents that can
damage plastic parts, especially the transducer’s face.
IMPORTANT: The sensor must be installed carefully.
Read the instructions completely before proceeding with
the installation. These instructions supersede any other
instructions in your instrument manual if they differ.
WARNING
The sensor must be installed with a
High-Performance Fairing!
A fairing that is carefully cut to fit the shape of the hull
provides a sealing surface around the drilled hole. If the
sensor is not installed with a fairing, there may be
insufficient surface area to seal the hull. Water may
leak into the boat causing damage or possibly sinking.
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B744V
High-Performance
Fairing
INSTALLATION INSTRUCTIONS OWNER’S GUIDE &
B765LH
Applications
Bronze sensor recommended for fiberglass or wood hulls only.
Tools & Materials
High-Performance Fairing (MANDATORY)
Safety goggles
Dust mask
Grommet(s) (some installations)
Cable ties
Water-based anti-fouling paint (mandatory in salt water)
Identify Your Model
The model name is printed on the cable tag.
Pretest: B744V, B744VL
Connect the multisensor to the instrument and spin the
paddlewheel. Check for a speed reading and the approximate air
temperature. If there is no reading or it is inaccurate, check the
connections and repeat the test. If there is still no reading or they
are inaccurate, return the product to the place of purchase.
Thru-Hull
Models: B744V, B744VL TRIDUCER® Multisensor
Retractable with Valve
B765LH, B765LM CHIRP Transducer
U.S. Patent: 7,369,458. UK 2 414 077. U.S. Patent Pending
Record the information found on the cable tag for future reference.
Part No._________________Date___________Frequency________kHz
B765LM