Airmar R99, R109LH, R109LM, R109LH-W, R209 User Manual

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	OWNER’S GUIDE	&
	External-Mount, 2-3kW
	Depth Transducer with Temperature Sensor
	Models: R99, R109LH, R109LM, R109LH-W, R209, R309,
	R509LH, R509LM, R509LH-W, R609LH, R609LM
01/09/14	U.S. Patent No. 7,369,45; 8,582,393. UK Patent No. 2 414 077
01/09/14
	Follow the precautions below for optimal
rev. 10	product performance and to reduce the risk of
rev. 10	property damage, personal injury, and/or death.
01	WARNING: Boats capable of speeds above 25kn
17-335-	WARNING: Boats capable of speeds above 25kn
17-335-	(29MPH)—You must follow these instructions for a
	safe installation. For boats exceeding 35 kn. (40MPH)
	or when the instructions cannot be met, mount an in-
	hull transducer. At high speeds, the fairing and/or
	transducer may break away from the boat.
	WARNING: A stuffing tube is required. The stuffing tube
	seals the hull forming a water-tight conduit for the cable.
	WARNING: Always wear safety goggles and a dust
	mask when installing.
	WARNING: The fairing must be installed parallel to the
	keel to ensure proper boat handling and water flow
	under the transducer.
	WARNING: Immediately check for leaks when the boat
	is placed in the water. Do not leave the boat in the water
	unchecked for more than three hours. Even a small leak
	may allow considerable water to accumulate.
	WARNING: Fiberglass hull—The transducer and stuffing
	tube must be installed in solid fiberglass, not in coring
	CAUTION: Aluminum hull—The stainless steel
	hardware must be isolated from an aluminum hull to
	prevent electrolytic corrosion.
	CAUTION: Steel hull—Follow generally accepted
	installation practices.
	CAUTION: Never install a metal fitting on a vessel with
	a positive ground system.
	CAUTION: External mount only. The transducer will
	overheat if it is mounted in a hull pocket.
	CAUTION: Never pull, carry, or hold the transducer by
	its cable. This may sever internal connections.
	CAUTION: Never strike the transducer.
	CAUTION: Tighten the nylon locking nuts with a torque
	wrench using a force not exceeding 27N-m (20ft.-lb.).
	Do not over tighten. It may crack the transducer and/or
	crush the fairing.
	CAUTION: Never use solvents. Cleaner, fuel, sealant,
	paint, and other products may contain solvents that can
	damage plastic parts, especially the transducer’s face.

INSTALLATION INSTRUCTIONS

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

Part No.:_________________Date___________Frequency________kHz

Remove				fairing
and discard				fairing
and discard
the packing
hardware.				transducer

Figure 1. Packing hardware

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

•Recommended for all hull materials

•Not recommended for hulls less than 9m (30') long

•Not recommended for stepped hulls. Mount an in-hull transducer

•Accommodates a deadrise angle up to 22°

Unpacking & Pretest

Remove and discard the packing hardware (rod and 2 nuts) (see Figure 1). Connect the temperature function to the instrument and check for the approximate air temperature. If there is no reading or it is inaccurate, check the connections and test again. If there is still a problem, return the product to your place of purchase.

Tools & Materials

Safety goggles

Dust mask

Angle finder

Band saw (blade must be very sharp)

Rasp or power tool
Electric drill
Drill bits:
pilot hole	3mm or 1/8"
fiberglass, wood, or steel hull	14mm or 9/16"
aluminum hull	15mm or 9/16"
Permanent marker

Mild household detergent or weak solvent (such as alcohol) Sandpaper

File (installation in a metal hull)

Marine sealant (suitable for below waterline) Wrenches

Torque wrench

Grommet(s) (some installations) Cable ties

Water-based anti-fouling paint (mandatory in salt water)

Airmar R99, R109LH, R109LM, R109LH-W, R209 User Manual

pressure waves

slope of hull

deadrise

angle

parallel to

1/3

waterline

LWL

200-600mm

(Load Waterline Length)

(8 – 24")

Figure 2. Transducer location on displacement hull

NOTE: Mount within the aft 1/3 of the hull, as far back as possible.









outboard and I/O						inboard

Figure 3. Transducer location on planing hull

Mounting Location

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 the sensor where the boat may be supported during trailering, launching, hauling, or storage to avoid damaging the transducer’s face.

•The water flowing under the hull must be smooth with a minimum of bubbles and turbulence (especially at high speeds).

•The transducer must be continuously immersed in water.

•The transducer beam must be unobstructed by the keel or propeller shaft(s).

•Choose a location 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.

•Choose a location with a minimal deadrise angle, not to exceed 22°.

•Choose an accessible spot inside the vessel with adequate space for the height of the stuffing tube and tightening the nuts.

Hull Types

•Displacement hull powerboat—Locate about 1/3 of the way along the LWL and 200–600mm (8–24") off the centerline (see Figure 2). The starboard side of the hull where the propeller blades are moving downward is preferred.

•Planing hull powerboat— (see Figure 3)

•Mount within the aft 1/3 of the hull, as far back as possible. Outboard and I/O—Mount just forward of the engine(s). Inboard—Mount ahead of the propeller(s) and shaft(s).

•Mount on or as close to the centerline as possible, and well inboard of the first set of lifting strakes to ensure that the transducer is in contact with the water at high speeds.

•Mounting on the starboard side of the hull where the propeller blades are moving downward is preferred.

Stuffing Tube

After determining the best mounting location for the transducer, install the stuffing tube. Follow the installation instructions packaged with the stuffing tube.

Fairing: Cutting, Bedding & Installing

Cutting the Fairing

CAUTION: Shape the fairing to the hull as precisely as possible. If there are gaps between the fairing and the hull near the ends, cut a new fairing. Over tightening the rods to minimize gaps may crack the transducer and/or crush the fairing.

1.Measure the deadrise angle of the hull at the stuffing tube using an angle finder or digital level (see Figure 2).

2.Tilt the band saw table to the measured angle and secure the cutting fence (see Figure 4). Do not exceed 22°.

3.Place the fairing on the table so the cutting guide rests against the fence (see Figures 4 and 5). Note the fairing is symmetrical.

4.Adjust the fence so the fairing will be cut in about two equal parts. The section that will become the fairing must be a minimum of 20mm (3/4") at its thinnest dimension (see Figure 6).

5.Recheck steps 1 through 4; then cut the fairing.

6.Check the fit by placing the fairing against the hull. Be sure the fairing is parallel to the centerline of the boat (keel), and the stuffing tube is about 2/3 of the way back in the cavity (see Figure 5). Hold the fairing on the ends and try to rock it back and forth. Shape the fairing to the hull as precisely as possible with a rasp or power tool until it no longer rocks.

bottom view

cutting

band saw

Bow>

guide

table

cutting

guide

deadrise

cavity for

angle

stuffing

tube

fence

location

of stuffing

tube

Figure 4. Cutting the fairing

Figure 5. Fairing

aft view

NOTE: After the fairing is cut, the section with the cutting guide becomes the backing block.

cutting guide

20mm

(3/4") min.

22° max

Figure 6. Fairing

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