INSTALLATION INSTRUCTIONS
Convert transducer
from dual to single transmission-line
External Diplexer
Patent http://www.airmar.com/patent.html
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.
CAUTION : To reduce electrical interference from other electrical wiring and any on-board equipment with strong magnetic fields such as radar equipment, radio transmitters, boat engines, generators, etc., separate the cables by at least 1m (3').
CAUTION : Be careful not to tear the cable jackets when passing them through bulkheads and other parts of the boat. Use grommets to prevent chaffing.
Use deck glands to prevent water seepage into the boat.
IMPORTANT : Please read the instructions completely before proceeding with the installation. These instructions supersede any other instructions in your instrument manual if they differ.
Tools & Materials
Safety glasses
Dust mask
Ear protection
Pencil
Electric drill
Drill bit 3mm or 1/8"
Grommets (some installations)
Deck gland (some installations)
Phillips screwdrivers
Heat-shrink tubing
Adjustable wrench
Petroleum jelly (such as Vaseline ® brand)
Cable ties
A
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M
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Where to Purchase Parts
Gemeco
Airmar EMEA
USA
Tel: 803-693-0777 email: [email protected]
Europe, Middle East, Africa
Tel: +33.(0)2.23.52.06.48
email: [email protected]
Applications
• Converts a dual transmission-line transducer to a single transmission-line.
• For use with 1kW echosounders only
Installation
Mounting Location & Hole Drilling
1. Select a convenient, dry, mounting location for the waterresistant Diplexer, a minimum of 1m (3') from other cables and electronic equipment.
2. Hold the Diplexer at the selected location and mark the position of the four screw holes.
NOTE : If the Diplexer will be mounted on a vertical surface, face the cordgrip downward to avoid any possibility of water seeping into the box.
3. At the marked locations, drill 3mm or 1/8" holes to a depth of
10mm (3/8"). Do not fasten the Diplexer in place at this time .
Cable Routing
1. Route the transducer cable from the transducer to the Diplexer.
Do not connect the transducer cable or fasten it in place at this time.
2. Route the fishfinder cable from the fishfinder to the Diplexer’s cable. Do not connect the cables or fasten them in place at this time.
Connecting
CAUTION : When the connections are complete, be sure there are no frayed strands, or loose or bare ends to cause shorting.
1. Remove the cover of the Diplexer. Set it aside along with the two screws and the plastic bag containing the four mounting screws.
2. Push approximately 200mm (8") of the transducer cable through the cordgrip (Figure 1). To ease sliding, bend the wires back against the cable jacket or wrap electrical tape around them.
3.
C44-01 Cable Only —Select the bundle wrapped in green foil, containing brown, white, and bare wires. Cut off the bare wire and the foil flush with the cable jacket.
4. Protect the cable’s foil shielding from causing a short circuit inside the Diplexer. Use heat-shrink tubing around the jacket where the wires emerge from the cable. The tubing must overlap the wires a minimum of 6mm (1/4").
5. Twist the bare wires together.
C44-01 has 3 bare wires. (A fourth bare wire was cut off.)
C335 has 2 bare wires.
6. Following the label on the Diplexer cover and the list below, insert the stripped end of each colored wire /twisted bare wires into the appropriate opening in the side of the terminal block.
Tighten the terminal screw until the wire(s) is held firmly.
1.
Brown
2.
Yellow (C44-01 cable)
Blue with white stripe (C335 cable)
Temperature
+ Low frequency
3.
Black with white stripe - Low frequency
4.
Bare wires Ground
(C44-01 has 3 bare wires. The fourth bare was cut off.)
(C335 has 2 bare wires)
5.
Orange
6.
Black
Transducer ID®
- High frequency
7.
Blue + High frequency
8.
White Temperature
7. Visually inspect all the wires. There should be no frayed strands or loose ends to cause shorting. If any colored wire has a visible bare end, reconnect it to the terminal.
Completing the Installation
1. From outside the Diplexer, pull the transducer cable until only
51mm (2") of jacket remains inside the box. Hand tighten the cordgrip. To make a watertight seal, use an adjustable wrench to tighten the cordgrip an additional 1/4 to 1/2 turn.
2. Arrange the wires neatly inside the Diplexer. Check to be sure the gasket is firmly installed in the channel on the back side of the cover (Figure 2). Lubricate the gasket with petroleum jelly.
Screw the cover in place with the two long screws supplied.
3. Fasten the Diplexer in place at the mounting location with the four 6 x 1/2" screws supplied.
4. Plug the connector on the fishfinder cable into the Diplexer cable connector.
5. Fasten all the cables in place. Coil any excess cable and secure it with cable ties to prevent damage.
2
(enlarged to show detail)
Diplexer cable connects to fishfinder transducer cable
Figure 1. Connecting
Copyright © 2009 - 2018 Airmar Technology Corp.
cordgrip
NOTE: lubricate gasket with petroleum jelly
Figure 2. Lubricate the gasket
Copyright © 2009 Airmar Technology Corp.
heat-shrink tubing
35 Meadowbrook Drive, Milford, New Hampshire 03055-4613, USA
• www.airmar.com
Copyright © 2009 - 2018 Airmar Technology Corp. All rights reserved.
