Airmar B45 - User Manual

Follow the safety precautions below to reduce the
risk of poor product performance, property
damage, personal injury, and/or death.
WARNING: A High-Performance Fairing must be
installed following the Installation Instructions that
come with the fairing. The High-Performance Fairing
requires an anti-rotation bolt. Failure to install the anti-
rotation bolt may result in the fairing rotating while the
boat is underway. The effect may be violent
movement and loss of steering.
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: Never mount a bronze transducer in a
metal hull, because electrolytic corrosion will occur.
CAUTION: Stainless steel housing in a metal hull
requires using a Fairing Kit to isolate the stainless
steel transducer from the metal hull. Failure to do so
will cause electrolytic corrosion.
CAUTION: Never install a metal transducer on a
vessel with a positive ground system.
CAUTION: Never pull, carry, or hold the transducer by
the cable as this may sever internal connections.
CAUTION: Never strike the transducer.
CAUTION: Never use solvents. Cleaners, fuel,
sealants, paint, and other products may contain strong
solvents, such as acetone, which attack many
plastics, greatly reducing their strength.
IMPORTANT: Read the instructions completely
before proceeding with the installation. These
instructions supersede any other instructions in your
instrument manual if they differ.
17-008-05 rev. 14 06/16/11
Thru-Hull, Depth with stem
Transducer
Models: B45, B258, B260, B265LH, B265LM, B271W
SS258, SS260, SS270W, SS505
U.S. Patent No. 7,369,458. UK Patent No. 2 414 077. U.S. Patent Pending
Applications
• Bronze transducer recommended for fiberglass or wood hull only.
• Stainless steel transducer compatible with all hull materials.
Recommended for aluminum hulls to prevent electrolytic corrosion
provided the stainless steel transducer is isolated from the metal hull.
Identify Your Model
The model name is printed on the cable tag.
Tools & Materials
Safety goggles
Dust mask
Electric drill
Drill bits and hole saws:
Pilot hole 3mm or 1/8"
B45, SS505 22mm or 7/8"
B258, B271W, SS258 30mm or 1-3/16"
B260, B265LH/LM, SS260, SS270W 33mm or 1-5/16"
Sandpaper
Mild household detergent or weak solvent (such as alcohol)
File (installation in a metal hull)
Angle finder (installation with a fairing)
Band saw (installation with a fairing)
Rasp or power tool (installation with a fairing)
Marine sealant (suitable for below waterline)
Slip-joint pliers
Grommet(s) (some installations)
Cable ties
Water-based anti-fouling paint (mandatory in salt water)
Installation in a cored fiberglass hull: (see page 4)
Drill bits and hole saws for hull interior:
B45, SS505 35mm or 1-3/8"
B258, B271W, SS258 40mm, 41mm, or 1-5/8"
B260, B265LH/LM, SS260, SS270W 42mm or 1-5/8"
Cylinder, wax, tape, and casting epoxy
About Fairings
Most vessels have some deadrise angle at the mounting location. If
the transducer is mounted directly to the hull, the sound beam will
be tilted to the side at the same angle as the deadrise. A fairing is
strongly recommended if the deadrise angle exceeds 10°. Made of
a high-impact polymer with an integrated cutting guide, an Airmar
fairing is safer and easier to cut with a band saw and shape with
hand tools than custom fairings.
• Orients the sound beam straight down by mounting the
transducer parallel to the water surface.
• Mounts the transducer deeper in the water for clean flow over
the transducer’s face.
• Airmar High-Performance Fairing has a long streamlined
shape, directing water around the transducer to minimize drag.
Performance is excellent above 15kn (18MPH). (To order see
“Replacement Parts” on page 4.)
Record the information found on the cable tag for future reference.
Part No.________________Date___________Frequency_________kHz
B45
Standard
High-Performance
Fairing
Fairing
INSTALLATION INSTRUCTIONSOWNER’S GUIDE &

Summary

General Information and Safety

Product Overview and Models

Lists transducer models and provides context for installation instructions.

Safety Precautions

Covers warnings and cautions for safe installation and operation.

Applications

Details suitable hull types for bronze and stainless steel transducers.

Installation Procedures

Identifying Your Model

Instructions on finding the transducer model name on the cable tag.

Tools and Materials

Lists essential tools and materials required for installation.

About Fairings

Explains the purpose, benefits, and types of fairings for transducers.

Mounting Location Guidelines

Provides advice on selecting the optimal location for transducer mounting.

Installation Without Fairing or With Standard Fairing

Specific steps for installing transducers without a fairing or with a standard fairing.

Hole Drilling

Detailed instructions for drilling mounting holes in various hull types.

Cutting the Standard Fairing

Step-by-step guide for cutting and shaping a standard fairing.

Bedding

Instructions on applying sealant for proper hull sealing and transducer bedding.

Installing the Transducer

Final steps for physically installing the transducer and hull nut.

Cable Routing and Connecting

Guidelines for routing the transducer cable and connecting it to the instrument.

Hull Specific Installation and Maintenance

Checking for Leaks

Procedure for checking and rectifying leaks after installation.

Installation in a Cored Fiberglass Hull

Specific steps and precautions for installing in cored fiberglass hulls.

Anti-fouling Paint Application

Recommendations for applying anti-fouling paint to the transducer surface.

Cleaning and Maintenance

Instructions for cleaning the transducer surface to maintain performance.

Replacement Parts

Information on identifying and ordering replacement parts for the transducer.

Airmar B45 Specifications

General

Frequency	50/200 kHz
Beam Width	45°/12°
Material	Bronze
RMS Power	600 W
Power Handling	600 W
Connector Type	10-pin
Housing Material	Bronze
Type	Thru-Hull