Airmar CM599LH User Manual

Placement Guidelines

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.

CAUTION: Do not mount in line with trailer rollers or bunks that
may damage the transducer’s face.

Choose a Location

• Where the hull is flat or nearly flat, so the transducer beam will
be aimed straight down.

• 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 keel or
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.

Bolts

• Choose bolts with 3/8"-16 UNC threads.

• Tighten the bolts using a torque wrench with a force not
exceeding 85 in.-lb. Do not over tighten.

Cable Routing & Connecting

CAUTION: If the transducer came with a connector, do not

remove it to ease cable routing. If the cable must be cut and
spliced, use Airmar’s splash-proof Junction Box No. 33-035 and
follow the instructions provided. Removing the water-proof
connector or cutting the cable, except when using water-tight
junction box, will void the transducer warranty.

1. Route the cable to the echosounder being careful not to tear the
cable jacket when passing it through the bulkhead(s) and other
parts of the boat. Use grommet(s) to prevent chafing. To reduce
electrical interference, separate the transducer cable from other
electrical wiring and the engine(s). Coil any excess cable and
secure it in place with cable ties to prevent damage.

2. Refer to your echosounder owner’s manual to connect the
transducer to the instrument.

Checking for Leaks

When the boat is placed in the water, immediately check around
the transducer for leaks. Note that very small leaks may not be
readily observed. Do not leave the boat in the water for more than
3 hours before checking it again. If a leak is observed, repeat the
installation procedures immediately.

Maintenance, Parts, & Replacement

Anti-fouling Paint

Surfaces exposed to salt water must be coated with anti-fouling
paint. Use water-based anti-fouling paint only. Never use ketone
based anti-fouling paint, since ketones can attack many plastics
possibly damaging the transducer. Apply anti-fouling paint every 6
months or at the beginning of each boating season.

Cleaning

Aquatic growth can accumulate rapidly on the transducer’s
surface, reducing its performance within weeks. Clean the surface
with a Scotch-Brite® scour pad and mild household detergent,
being careful to avoid making scratches. If the fouling is severe,
lightly wet sand it with fine grade wet/dry paper.

Transducer Replacement & Parts

The information needed to order a replacement Airmar transducer is
printed on the cable tag. Do not remove this tag. When ordering,
specify the part number, date, and frequency in kHz. For convenient
reference, record this information near the top of page one.

Obtain parts from your instrument manufacturer or marine dealer.

Gemeco Tel: [phone]
(USA) Fax: [phone]

email: [e-mail]

Airmar EMEA Tel: [phone]
(Europe, Middle East, Africa) Fax: [phone]

email: [e-mail]

Pocket/Keel Mount

Depth Transducer

with Temperature Sensor

Models: CM599LH, CM599LM, CM599LH-W,

PM111LH, PM111LM, PM111LH-W

U.S. Patent No. 7,369,45; 8,582,393. UK Patent No. 2 414 077

17-568-01 rev.06 01/09/14

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.

Follow the 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: 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.

INSTALLATION INSTRUCTIONSOWNER’ S GUIDE &

Record the information found on the cable tag for future reference.

Part No._________________Date___________Frequency________kHz

Applications

• Recommended for fiberglass hulls

• Recommended for high-speed boats

Mounting Location

Hull Types (see Figure 1)

• Displacement hull powerboats—Locate amidships near the
centerline. The starboard side of the hull where the propeller
blades are moving downward is preferred.

• Planing hull powerboats—Mount well aft, on or near the
centerline, and well inboard of the first set of lifting strakes to
ensure that the transducer will be in contact with the water at
high speeds. The starboard side of the hull where the propeller
blades are moving downward is preferred.

Outboard and I/O—Mount just forward of the engine(s).
Inboard—Mount well ahead of the propeller(s) and shaft(s).
Stepped hull—Mount just ahead of the first step.

35 Meadowbrook Drive, Milford, New Hampshire 03055-4613, USA

•

www.airmar.com

Copyright © 2011 - 2014 Airmar Technology Corp. All rights reserved.

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.

displacement hull

outboard and I/O

Figure 1.

stepped hull

inboard

Best location for the transducer

Copyright © 2006 Airmar Technol ogy Corp.

CM599LH, CM599LM, CM599LH-W

PM111LH, PM111LM, PM111LH-W

IMPORTANT: Some printers and printer

settings can alter the size of the template.

Verify the template’s size before cutting.
Place the transducer on the template to be
sure it is the exact size. If necessary, redraw
the template.

2