Airmar SS904 Скачать руководство пользователя страница 6

6

Installation in a Cored Fiberglass Hull

The core (wood or foam) must be cut and sealed carefully. The 
core must be protected from water seepage, and the hull must be 
reinforced to prevent it from crushing under the hull nut allowing 
the transducer(s) to become loose.

CAUTION

: Completely seal the hull to prevent water seepage 

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

inside the hull (Figure 8). If there is a rib, strut, or other hull 
irregularity near the selected mounting location, drill from the 
outside. If the hole is drilled in the wrong location, drill a second 
hole in a better location. Apply masking tape to the outside of the 
hull over the incorrect hole and fill it with epoxy.

2. Using the appropriate size drill bit/hole saw, cut a hole from 

outside the hull through the outer skin only. Be sure to hold the 
drill plumb, so the hole will be perpendicular to the water surface.

3. The optimal interior hole diameter is affected by the hull’s 

thickness and deadrise angle. It must be large enough in 
diameter to allow the core to be completely sealed.

4. Using the drill bit/hole saw for the hull interior, cut through the

 

inner

 skin and most of the core from inside the hull keeping the 

drill perpendicular to the hull. The core material can be very 
soft. Apply only light pressure to the drill bit after cutting through 
the 

inner

 skin to avoid accidentally cutting the 

outer

 skin.

5. Remove the plug of core material so the 

inside

 of the outer skin 

and the inner core of the hull is fully exposed. Sand and clean 
the inner skin, core, and the outer skin around the hole.

6. Coat a hollow or solid cylinder of the correct diameter with wax 

and tape it in place. Fill the gap between the cylinder and hull 
with casting epoxy. After the epoxy has set, remove the cylinder.

7. Sand and clean the area around the hole, inside and outside, to 

ensure that the sealant will adhere properly to the hull. If there 
is any petroleum residue inside the hull, remove it with either 
mild household detergent or a weak solvent (alcohol) before 
sanding.

8. Follow the same procedure to prepare the hull for each anti-

rotation stud/screw (steps 1 through 6).

9. Proceed with “Bedding” on page 4.

Cable Routing & Connecting

CAUTION

: Do not remove the connector(s) to ease cable routing. If 

a cable must be cut and spliced, use Airmar’s splash-proof Junction 

Box No. 33-035 and follow the instructions provided. Removing the 

waterproof connector or cutting the cable, except when using a 

water-tight junction box, will void the sensor warranty.

1. Refer to the instructions that came with the echo sounder module 

to connect it to the display and the power supply.

2.

Transducer Pair

—Connect the starboard transducer to the short 

cable on the port transducer. Rout the longer cable on the port 
transducer to the echo sounder module (Figure 9).

Maintenance, Parts & Replacement

Anti-fouling Coating

Surfaces exposed to salt water must be covered with an anti-
fouling coating. Use a 

water-based

 anti-fouling coating made for 

transducers only. Never use ketone based paint, since ketones 
can attack many plastics possibly damaging the transducer. Brush 
on anti-fouling coating every 6 months or at the beginning of each 
boating season.

Checking for Leaks

When the boat is placed in the water, 

immediately

 check around 

the transducer(s) 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 there is a small leak, there may 
be considerable bilge water accumulation after 24 hours. If a leak 
is observed, repeat “Bedding” and “Installing” 

immediately

.

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 
taking care to avoid making scratches. If the fouling is severe, 
lightly wet sand with fine grade wet/dry paper.

hull’s outer skin to

hull

outer skin

solid or hollow

cylinder

pour in

casting

epoxy

core

inner skin

Figure 8. Preparing a cored fiberglass hull

dimension equal to

the thickness of the

ensure adequate

clearance

Copyright © 2005 Airmar Technology Corp.

Figure 9. Cable routing transducer pair

Copyright © 2022 Airmar Technology Corp.

steep deadrise hull

with two transducers

starboard 
transducer

port 
transducer

echo sounder

Содержание SS904

Страница 1: ...S904 Record the information found on the cable tag for future reference Part No ____________________Serial No ________________________ Date_______________Frequency____________________________kHz Appli...

Страница 2: ...h 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 ra...

Страница 3: ...acing it against the hull being sure it is parallel to the centerline of the boat keel Hold the fairing on the ends and try to rock it back and forth Shape the fairing to the hull as precisely as poss...

Страница 4: ...ll Note that the sleeves must not interfere with tightening the nuts Slide the larger diameter isolation sleeve over the bedded transducer stem Slide the two remaining isolation sleeves over the bedde...

Страница 5: ...with slip joint pliers Do not over tighten Cored fiberglass hull Do not over tighten crushing the hull Wood hull Allow for the wood to swell before tightening Metal hull Be sure the isolation sleeves...

Страница 6: ...llow the same procedure to prepare the hull for each anti rotation stud screw steps 1 through 6 9 Proceed with Bedding on page 4 Cable Routing Connecting CAUTION Do not remove the connector s to ease...

Страница 7: ...e top of page 1 Lost broken and worn parts should be replaced immediately Obtain parts from your instrument manufacturer or marine dealer Gemeco USA Tel 803 693 0777 Email sales gemeco com Airmar EMEA...

Страница 8: ...m or 7 16 stem 25mm or 1 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...

Отзывы: