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Airmar SS502 - User Manual

Airmar SS502
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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 glasses, a dust mask,
and ear protection 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: Always operate the transducer in water.
Operating in air will allow the transducer to overheat
possibly resulting in failure.
CAUTION: The stainless steel housing must be
isolated from a metal hull to prevent electrolytic
corrosion. Use the isolation sleeve and washers
supplied.
CAUTION: SS422—The transducer must be oriented
properly. The mark on the face must be forward and
parallel to the centerline of the boat.
CAUTION: Never install a metal transducer in 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. Cleaner, fuel, sealant,
paint, and other products may contain solvents that
can damage plastic parts, especially the transducer’s
face.
IMPORTANT: Read the instructions completely
before proceeding with the installation. These
instructions supersede any other instructions in your
instrument manual if they differ.
17-008-06 rev. 04 06/14/18
Thru-Hull: Stem, NO Fairing
Depth Transducer
Models: SS422, SS502
Patent http://www.airmar.com/patent.html
Tools & Materials
Safety glasses
Dust mask
Ear protection
Permanent marker
Electric drill
Drill bits and hole saws:
Pilot hole 3mm or 1/8"
SS502 23mm or 15/16"
SS422 25mm or 1"
Sandpaper
Mild household detergent or weak solvent (such as alcohol)
File (installation in a metal hull)
Marine sealant (suitable for below waterline)
Knife or scissors (installation in a metal hull)
Slip-joint pliers
Grommet(s) (some installations)
Cable ties
Water-based anti-fouling paint (mandatory in salt water)
Installation in a cored fiberglass hull (page 4):
Hole saws for hull interior: 35mm or 1-3/8"
Cylinder, wax, tape, and casting epoxy
Mounting Location
Guidelines
CAUTION: Do not mount in line with or near water intake or
discharge openings or behind strakes, struts, 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),
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.
Choose an accessible spot inside the vessel with adequate
space for the height of the stem and tightening the nut.
Record the information found on the cable tag for future reference.
Part No.________________Date___________Frequency_________kHz
Applications
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.
SS502
OWNER S GUIDE & INSTALLATION INSTRUCTIONS
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Summary

Safety Precautions

Wear Safety Gear

Always wear safety glasses, a dust mask, and ear protection during installation.

Leak Check Procedure

Immediately check for leaks after launching and monitor for three hours.

Operation in Water

Always operate the transducer in water to prevent overheating and failure.

Metal Hull Isolation

Isolate stainless steel housing from metal hulls to prevent electrolytic corrosion.

SS422 Orientation

Orient the SS422 transducer with the mark forward and parallel to the boat's centerline.

Positive Ground System

Never install a metal transducer in a vessel with a positive ground system.

Cable Handling

Do not pull, carry, or hold the transducer by its cable to avoid severing internal connections.

Avoid Striking Transducer

Never strike the transducer to prevent damage.

Solvent Avoidance

Never use solvents, as they can damage plastic parts and the transducer face.

Instruction Review

Read instructions completely; they supersede instrument manual if conflicting.

Applications

Hull Material Compatibility

Stainless steel transducer is compatible with all hull materials.

Aluminum Hull Recommendation

Recommended for aluminum hulls with proper isolation to prevent electrolytic corrosion.

Tools and Materials

Essential Safety Gear

Safety glasses, dust mask, and ear protection are required for installation.

Marking and Drilling Tools

Permanent marker, electric drill, and appropriate drill bits/hole saws.

Cleaning Agents

Mild household detergent or weak solvent (like alcohol) for surface cleaning.

Metal Hull Preparation Tools

File and knife/scissors for preparing metal hulls.

Sealant and Fastening Tools

Marine sealant, slip-joint pliers for hull nut tightening.

Cable Management

Grommets for cable routing and cable ties for securing excess cable.

Anti-fouling Paint

Water-based anti-fouling paint is mandatory for salt water installations.

Cored Fiberglass Hull Materials

Hole saws, cylinder, wax, tape, and casting epoxy for cored fiberglass hulls.

Mounting Location Guidelines

Avoid Flow Disturbances

Do not mount near water intakes, discharges, or hull irregularities that disturb water flow.

Avoid Support Interference

Do not mount where boat support during trailering/hauling could damage the transducer face.

Smooth Water Flow

Ensure water flow under the hull is smooth with minimal bubbles and turbulence.

Continuous Immersion

The transducer must be continuously immersed in water.

Unobstructed Beam

The transducer beam must be unobstructed by the keel or propeller shaft.

Minimize Interference

Choose a location away from power/radiation sources like propellers and machinery.

Minimal Deadrise Angle

Select a mounting location with a minimal deadrise angle.

Accessible Installation Spot

Choose an accessible spot inside the vessel with adequate space for tightening the nut.

Bedding Procedure

Clean and Dry Surfaces

Ensure all surfaces to be bedded are clean and dry before applying sealant.

Sealant Application

Apply marine sealant to the transducer surface and stem, extending higher than the hull nut.

Installation Steps

Washer Placement

Slide a washer onto the transducer cable and stem, resting against the transducer.

Transducer Insertion

Thread cable through the hole, then push transducer stem through, twisting to seal.

Hull Nut Tightening

From inside, slide second washer and hull nut, screw on, and tighten with pliers.

SS422 Alignment Check

Ensure SS422 housing is not rotated during tightening; avoid damaging threads.

Metal Hull Isolation Sleeve

Ensure isolation sleeve is between stem and hull; trim if it interferes with nut tightening.

Fiberglass;Wood Hull Caution

Do not overtighten on cored fiberglass; allow wood hulls to swell.

Excess Sealant Removal

Remove excess sealant from the outside of the hull for smooth water flow.

Cable Routing and Connecting

Connector Handling

Do not remove the sensor's connector. Use Airmar's junction box if splicing.

Cable Routing Best Practices

Route cable carefully, use grommets, separate from electrical wiring, and secure with ties.

Instrument Connection

Refer to the instrument owner's manual for connecting the transducer.

Checking for Leaks

Immediate Leak Inspection

Check for leaks immediately after placing the boat in water.

Extended Monitoring

Do not leave the boat in water for more than 3 hours without re-checking for leaks.

Leak Rectification

If a leak is observed, repeat 'Bedding' and 'Installing' procedures immediately.

Installation in a Cored Fiberglass Hull

Core Preparation

Core must be cut and sealed carefully to prevent water seepage and crushing.

Pilot Hole Drilling

Drill a 3mm or 1/8" pilot hole perpendicular to the waterline from inside the hull.

Outer Skin Hole Cutting

Cut a hole through the outer skin only from outside, keeping drill plumb.

Interior Hole Sizing

Optimal interior hole diameter depends on hull thickness and deadrise for core sealing.

Core Removal and Cleaning

Remove core material, sand, and clean inner skin, core, and outer skin around the hole.

Epoxy Sealant Preparation

Fill the gap between a cylinder and hull with casting epoxy to seal the core.

Final Cleaning and Sealing

Clean area around the hole and ensure sealant adheres properly.

Proceed to Bedding

After epoxy sets, proceed with the 'Bedding' procedure.

Anti-fouling Paint

Salt Water Application

Exposed surfaces in salt water must be coated with water-based anti-fouling paint.

Paint Type Restriction

Never use ketone-based paint, as it can damage plastics.

Reapplication Schedule

Reapply anti-fouling paint every 6 months or at the start of each boating season.

Maintenance, Parts & Replacement

Cleaning Transducer Surface

Clean the transducer surface regularly with a scour pad and mild detergent.

Severe Fouling Cleaning

For severe fouling, lightly wet sand with fine grade wet/dry paper.

Replacement Parts Identification

Part information for ordering replacements is on the cable tag; do not remove it.

Obtain Replacement Parts

Order lost, broken, or worn parts from your instrument manufacturer or marine dealer.

Summary

Safety Precautions

Wear Safety Gear

Always wear safety glasses, a dust mask, and ear protection during installation.

Leak Check Procedure

Immediately check for leaks after launching and monitor for three hours.

Operation in Water

Always operate the transducer in water to prevent overheating and failure.

Metal Hull Isolation

Isolate stainless steel housing from metal hulls to prevent electrolytic corrosion.

SS422 Orientation

Orient the SS422 transducer with the mark forward and parallel to the boat's centerline.

Positive Ground System

Never install a metal transducer in a vessel with a positive ground system.

Cable Handling

Do not pull, carry, or hold the transducer by its cable to avoid severing internal connections.

Avoid Striking Transducer

Never strike the transducer to prevent damage.

Solvent Avoidance

Never use solvents, as they can damage plastic parts and the transducer face.

Instruction Review

Read instructions completely; they supersede instrument manual if conflicting.

Applications

Hull Material Compatibility

Stainless steel transducer is compatible with all hull materials.

Aluminum Hull Recommendation

Recommended for aluminum hulls with proper isolation to prevent electrolytic corrosion.

Tools and Materials

Essential Safety Gear

Safety glasses, dust mask, and ear protection are required for installation.

Marking and Drilling Tools

Permanent marker, electric drill, and appropriate drill bits/hole saws.

Cleaning Agents

Mild household detergent or weak solvent (like alcohol) for surface cleaning.

Metal Hull Preparation Tools

File and knife/scissors for preparing metal hulls.

Sealant and Fastening Tools

Marine sealant, slip-joint pliers for hull nut tightening.

Cable Management

Grommets for cable routing and cable ties for securing excess cable.

Anti-fouling Paint

Water-based anti-fouling paint is mandatory for salt water installations.

Cored Fiberglass Hull Materials

Hole saws, cylinder, wax, tape, and casting epoxy for cored fiberglass hulls.

Mounting Location Guidelines

Avoid Flow Disturbances

Do not mount near water intakes, discharges, or hull irregularities that disturb water flow.

Avoid Support Interference

Do not mount where boat support during trailering/hauling could damage the transducer face.

Smooth Water Flow

Ensure water flow under the hull is smooth with minimal bubbles and turbulence.

Continuous Immersion

The transducer must be continuously immersed in water.

Unobstructed Beam

The transducer beam must be unobstructed by the keel or propeller shaft.

Minimize Interference

Choose a location away from power/radiation sources like propellers and machinery.

Minimal Deadrise Angle

Select a mounting location with a minimal deadrise angle.

Accessible Installation Spot

Choose an accessible spot inside the vessel with adequate space for tightening the nut.

Bedding Procedure

Clean and Dry Surfaces

Ensure all surfaces to be bedded are clean and dry before applying sealant.

Sealant Application

Apply marine sealant to the transducer surface and stem, extending higher than the hull nut.

Installation Steps

Washer Placement

Slide a washer onto the transducer cable and stem, resting against the transducer.

Transducer Insertion

Thread cable through the hole, then push transducer stem through, twisting to seal.

Hull Nut Tightening

From inside, slide second washer and hull nut, screw on, and tighten with pliers.

SS422 Alignment Check

Ensure SS422 housing is not rotated during tightening; avoid damaging threads.

Metal Hull Isolation Sleeve

Ensure isolation sleeve is between stem and hull; trim if it interferes with nut tightening.

Fiberglass;Wood Hull Caution

Do not overtighten on cored fiberglass; allow wood hulls to swell.

Excess Sealant Removal

Remove excess sealant from the outside of the hull for smooth water flow.

Cable Routing and Connecting

Connector Handling

Do not remove the sensor's connector. Use Airmar's junction box if splicing.

Cable Routing Best Practices

Route cable carefully, use grommets, separate from electrical wiring, and secure with ties.

Instrument Connection

Refer to the instrument owner's manual for connecting the transducer.

Checking for Leaks

Immediate Leak Inspection

Check for leaks immediately after placing the boat in water.

Extended Monitoring

Do not leave the boat in water for more than 3 hours without re-checking for leaks.

Leak Rectification

If a leak is observed, repeat 'Bedding' and 'Installing' procedures immediately.

Installation in a Cored Fiberglass Hull

Core Preparation

Core must be cut and sealed carefully to prevent water seepage and crushing.

Pilot Hole Drilling

Drill a 3mm or 1/8" pilot hole perpendicular to the waterline from inside the hull.

Outer Skin Hole Cutting

Cut a hole through the outer skin only from outside, keeping drill plumb.

Interior Hole Sizing

Optimal interior hole diameter depends on hull thickness and deadrise for core sealing.

Core Removal and Cleaning

Remove core material, sand, and clean inner skin, core, and outer skin around the hole.

Epoxy Sealant Preparation

Fill the gap between a cylinder and hull with casting epoxy to seal the core.

Final Cleaning and Sealing

Clean area around the hole and ensure sealant adheres properly.

Proceed to Bedding

After epoxy sets, proceed with the 'Bedding' procedure.

Anti-fouling Paint

Salt Water Application

Exposed surfaces in salt water must be coated with water-based anti-fouling paint.

Paint Type Restriction

Never use ketone-based paint, as it can damage plastics.

Reapplication Schedule

Reapply anti-fouling paint every 6 months or at the start of each boating season.

Maintenance, Parts & Replacement

Cleaning Transducer Surface

Clean the transducer surface regularly with a scour pad and mild detergent.

Severe Fouling Cleaning

For severe fouling, lightly wet sand with fine grade wet/dry paper.

Replacement Parts Identification

Part information for ordering replacements is on the cable tag; do not remove it.

Obtain Replacement Parts

Order lost, broken, or worn parts from your instrument manufacturer or marine dealer.

Airmar SS502 Specifications

General IconGeneral
BrandAirmar
ModelSS502
CategoryTransducer
LanguageEnglish

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