INSTALLATION INSTRUCTIONS
Junction Box Kit
Replacement Insert for
TRIDUCER
®
Multisensor with Valve
IMPORTANT: Please read the instructions completely before proceeding with the installation. These instructions supersede any other instructions in your instrument manual if they differ.
terminal block screw (2) cap terminal screw
(16) connector terminal block mounting screws tab (2) mounting screws grommet (4)
Safety
WARNING: Installation Safety
Always wear safety goggles and a dust mask to avoid personal injury.
CAUTION: High Voltage Charge
The depth transducer may be storing a high voltage charge.
Accidental discharge could destroy the speed sensor.
Applications
• These instructions are for a replacement speed/temperature insert only. Installing a new insert will NOT solve problems with depth sounding or fish finding.
• Determine which set of instructions to follow (A or B) by looking at your TRIDUCER ® multisensor. If your multisensor has one cable, follow instructions A on page 2. If your multisensor has two cables—one from the depth transducer and one from the insert—follow instructions B on page 3.
• If these instructions are followed carefully, the connections will not corrode and the strain relief grommets will be water resistant and provide excellent cable retention.
Before Installing
1. Be sure your new insert is the correct replacement. Compare the length of the new insert with the original insert (ignore the cable).
If the new insert is more than 3mm (1/8") longer or shorter than the original insert, return it. To obtain the correct insert, see
“Multisensor Replacement” on the back of your multisensor’s owner’s guide.
2. Check the multisensor’s connector at the echosounder for corrosion. If the connector’s pins are corroded, clean them.
Then test the multisensor to see if the problem has been corrected.
3. Check the speed and temperature functions of the new insert.
Connect it to the echosounder, spin the paddlewheel, and check for a reading of several knots. Check for the approximate air temperature. If there is no reading or it is inaccurate, check the connection and repeat the test. If there is still no function, return the insert to your place of purchase.
black sleeving large diameter sleeving small diameter sleeving
Figure 1. Junction box and contents
Copyright © 2002, 2009 Airmar Technology Corp.
Tools & Materials
Safety goggles
Dust mask
Pencil
Drill
Drill bit: 3mm or 1/8"
Screwdrivers: Phillips and blade
Box-cutter knife (zip-cable installation)
Cutting pliers
Masking tape
Marker
Wire strippers
Alcohol
Petroleum jelly (nine or ten-wire cables)
Crimping pliers (nine or ten-wire cables)
Cable ties
Anti-fouling paint (water-based) (MANDATORY IN SALT WATER)
Silicone lubricant or petroleum jelly
Mounting Location
1. Remove the red cap from the junction box and set the contents aside (see Figure 1).
2. Select a convenient dry mounting location along the multisensor’s cable route, preferably 1–1.5 m (3–5') from the multisensor but no more than 3m (10').
3. Position the junction box so the grommets are easily accessible to the cable. Mark the location of the mounting holes.
4. At the marked location, drill two 3mm or 1/8" holes approximately 10mm (3/8") deep. Do not fasten the junction
box in place at this time.
speed/temp half of zip-cable
(printed half)
(contains red, green, brown, white, and bare wires) zip-cable echosounder
3-5
A
5-7 5-7
B
C insert depth transducer half of zip-cable multisensor
Figure 2. Splicing a zip-cable multisensor
Copyright © 2002, 2009 Airmar Technology Corp.
Cut the half of the zip-cable that is labeled
“Airmar Transducer Cable”
Do not cut the unmarked half
Figure 3. Cutting the speed/temperature half of the zip-cable
Copyright © 2002, 2009 Airmar Technology Corp.
6cm (2 1/2") remove outer jacket and foil shielding
13mm
(1/2")
AIRMAR TRANSDUCER CABLE C344 cable jacket colored wires folded stripped end bare wire
Figure 4. Preparing the cables
Copyright © 2002, 2009 Airmar Technology Corp.
5 -7 5 -7
5 -7 5 -7
2
Figure 5. Pushing the speed/temp cable through a grommet
Copyright © 2002, 2009 Airmar Technology Corp.
A. One-cable TRIDUCER
®
Multisensor
CAUTION: Do not cut the depth transducer half of the zip-cable.
CAUTION: Do not puncture unused grommets.
1. Disconnect the multisensor from the echosounder.
2. On the junction box, use a small Phillips screwdriver to puncture the center of both grommets marked 5-7 and one grommet marked 3-5 (see Figure 2).
3. The multisensor’s cable is actually two separate cables joined together. This type of cable is called zip-cable. Near the mounting location of the junction box, separate the two halves of the zip-cable. Carefully cut them apart with a box-cutter knife for a distance of 0.5m (18"). Start at the junction box location and move toward the sounder. Cut only the insulation between the halves. DO NOT cut into the cables and expose the wires inside.
4. After you have separated the zip-cable, notice that one of the halves is printed with the words “Airmar Transducer Cable” (see
Figure 3). The printed half of the zip-cable contains the speed and temperature functions. Cut only the speed/temperature half of the cable near the junction box. The wires inside will be red and green. DO NOT cut the depth transducer half of the cable.
NOTE: If the wires inside the cut-half of the cable are blue, black, and orange, you have cut the depth transducer side by mistake. Now cut the speed/temp half of the zip-cable. Because the depth transducer cable has been cut, you will need to splice it back together (see Figure 6). Puncture the center of the remaining 3-5 grommet. Prepare the cut ends of the depth transducer cable (see Figure 7).
5. Label the cables as follows with tape and a marker (see Figure 2).
• Cable A—cable to echosounder
• Cable B—cable to multisensor
• Cable C—new insert cable
6. Cables A and B—Strip 6cm (2-1/2") of the outer jacket and foil shield from the cut ends (see Figure 4).
7. Cable A—Strip 13mm (1/2") of insulation from the end of each colored wire.
Raymarine fishfinder models: 365, 470, 750—Cut-off the red and brown wires. Then strip 13mm (1/2") of insulation from the end of each remaining colored wire (see Figure 11 on page 4).
Raymarine fishfinder models: 755, 760, 770, 1250, 1260—
Cut-off the green and brown wires. Then strip 13mm (1/2") of insulation from the end of each remaining colored wire (see Figure
12 on page 4).
speed/temp half of zip-cable
(printed half)
(contains red, green, brown, white, and bare wires) echosounder
A depth transducer half of zip-cable
(contains blue, black, orange, and bare wires)
3-5 3-5
D
5-7 5-7
B
E
C insert multisensor
Figure 6. Splicing both halves of the zip-cable
Copyright © 2002, 2009 Airmar Technology Corp.
6cm (2 1/2") remove outer jacket and foil shielding
13mm
(1/2") remove insulation speed/temp cable
3-5 3-5 insert echosounder bare wire
Figure 7. Preparing the cut ends of a depth transducer cable
Copyright © 2002, 2009 Airmar Technology Corp.
8. Cable B—Only the bare wire will be used. Cut-off all the colored wires.
Raymarine fishfinder models: 755, 760, 1250, 1260—Cut-off the red and white wires. Then strip 13mm (1/2") of insulation from the end of each remaining colored wire (see Figure 12 on page 4).
9. Bend the stripped wires of each cable back against its cable jacket (see Figure 5). Apply alcohol to the cut end of each cable jacket to ease sliding. (Do not use any other lubricant to ease sliding. It will interfere with sealing the grommets.) Push about
20cm (8") of each cable through the appropriate grommet until all the wires are inside the junction box (see Figure 2). Bend the wires back to their original position (see Figure 5).
10.Slide a black sleeve over each bare wire and position it against the cable jacket. For ease in holding the sleeves in place and connecting to the terminals, fold the stripped ends of each wire in half. Twist the ends and bend them 90
°
(see Figure 4).
11.Go to “Connecting & Testing” and follow the instructions.
B. Two-cable TRIDUCER
®
Multisensor
CAUTION: Do not cut the depth transducer cable.
CAUTION: Do not puncture unused grommets.
1. Disconnect the multisensor from the echosounder.
2. On the junction box, use a small Phillips screwdriver to puncture the center of both 5-7 grommets only (see Figure 8).
3. Near the marked location for the junction box, cut only the cable leading to the speed/temp insert. Do not cut the depth transducer cable.
4. Strip 6cm (2-1/2") of the outer jacket and foil shield from the cable ends (see Figure 4).
5. Strip 13mm (1/2") of insulation from the end of each colored wire.
6. Bend the pre-stripped wires of the new insert cable back against the cable jacket (see Figure 5). Apply alcohol to the cut end of each cable jacket to ease sliding. Push about 20cm (8") of each cable through a grommet until all the wires are inside the junction box. Bend the wires back to their original position.
7. Slide a black sleeve over each bare wire and position it against the cable jacket (see Figure 4). For ease in holding the sleeves in place and connecting to the terminals, fold the stripped ends in half. Twist the ends and bend them 90
°
.
depth transducer cable
Figure 8. Splicing a two-cable multisensor
Copyright © 2002, 2009 Airmar Technology Corp.
multisensor
Connecting & Testing
CAUTION: If the depth transducer cable (with the blue, black, orange, and bare wires) has been cut, re-connect it FIRST before connecting the new speed/temp insert (see Figure 10 on page 4).
CAUTION: Make certain there are no bare wires, frayed strands, or loose ends to cause shorting.
1. Insert the stripped end of a colored wire from the echosounder cable A into the first square opening in the side of the terminal block (see Figure 9). Tighten the terminal screw until the wire is held firmly. Connect each wire in turn including the bare wire.
Raymarine fishfinder models: 365, 470, 750—Follow Figure
11 on page 4.
Raymarine fishfinder models: 755, 760, 1250, 1260—Follow
Figure 12 on page 4.
2. Connect each matching colored wire and bare wire from the new insert cable C to the corresponding terminal.
One-cable multisensor (zip-cable)—Twist the bare wire from cable B and the bare wire from cable C together. Connect the twisted pair of bare wires to the terminal.
3. Visually inspect all the wires. Make certain the sleeving completely covers any bare wire(s). There should be no frayed strands or loose ends to cause shorting. If any bare wire is visible, shorten the stripped end and reconnect it to the terminal.
4. Connect the cable to the echosounder and turn it ON.
5. Check for the approximate air temperature.
6. Spin the new paddlewheel and look for a speed reading.
NOTE: If the new insert does not work properly, the wiring may be incorrect. Return to step 1 and recheck your wiring.
red, green, white, and brown wires terminals red, green, white, and brown wires
A echosounder bare wire with black sleeve
B
C bare wire with black sleeve multisensor
Figure 9. Connecting (one-cable multisensor shown)
Copyright © 2002, 2009 Airmar Technology Corp.
insert
3
Closing & Mounting
1. Apply alcohol to each cable jacket inside the junction box to ease sliding. Grasp each cable from outside the box and pull until only
25mm (1") of the cable jacket is left inside. This will invert the grommets to seal the junction box.
2. Arrange the wires neatly inside the junction box.
3. Place the terminal block inside the junction box. Secure the ends with the terminal block screws provided (see Figure 1).
4. Close the box using the red cap. Expel the excess air inside the junction box by placing a thumb on the center of the red cap and applying pressure for 30 seconds.
5. Screw the junction box to the selected mounting surface using the two #6 x 1/2" (13mm) screws provided.
Antifouling Paint
Aquatic growth can accumulate rapidly on the insert reducing its performance within weeks. Surfaces exposed to salt water must be coated with antifouling paint. Use water-based antifouling
paint only. Never use ketone based paint since ketones can attack many types of plastic. Paint the following surfaces:
• Exposed end of the insert
• Outside wall of the insert below the lower O-ring
• Paddlewheel cavity
• Paddlewheel
Installing the Speed/Temperature Insert
WARNING: Different Speed/Temperature Inserts are attached in different ways. See your multisensor installation instructions for more details.
WARNING: O-ring must be intact and well lubricated to make a watertight seal.
WARNING: Always attach the safety wire to prevent the insert from backing out in the unlikely event that the cap nut and/or insert nut fails or is screwed on incorrectly.
1. Check the two O-rings on the new insert (replace if necessary) and lubricate them with silicone lubricant or petroleum jelly.
2. Remove the failed speed/temperature insert from the housing.
If desired, save it for replacement parts. The paddlewheel and shaft may be usable.
3. Slide the new insert into the valve assembly with the arrows on the top pointing forward until it is fully seated.
• Insert nut—Use a twisting motion until the keys fit into the notches. (The insert fits one way only.) Screw the insert nut in place and HAND-TIGHTEN only. Do not over tighten.
• Safety chain or Strap assembly—Reattach the safety chain/strap assembly to the cable. Slide the retaining pin through the holes and secure it with the safety ring(s).
4. Reattach the safety wire. Loop the wire through the pull ring and twist the wire securely to itself.
depth transducer
(blue & black) bare wire with black sleeve shielded pair with clear sleeve
D depth echosounder
A
CAUTION: Connect the depth transducer first.
terminals depth transducer
(blue & black) bare wire with black sleeve shielded pair with clear sleeve
E depth
C insert speed/temp
(red, green, white, & brown) bare wire with black sleeve
B multisensor speed/temp
(red, green, white, & brown) bare wire with black sleeve
Figure 10. Connecting the depth transducer & speed/temp insert
Copyright © 2002 Airmar Technology Corp.
green, white bare wire with black sleeve
A echosounder terminals
B multisensor green, white bare wires with black sleeves
C
Figure 11. Raymarine models: 365, 470, 750
Copyright © 2002 Airmar Technology Corp.
insert red, white, bare wire with sleeve
A echosounder brown, green terminals
B red, white bare wires with sleeves
C multisensor insert brown, green
Figure 12. Raymarine models: 755, 760, 770, 1250, 1260
Copyright © 2002 Airmar Technology Corp.
4
AIRMAR
®
TECHNOLOGY CORPORATION
35 Meadowbrook Drive, Milford, New Hampshire 03055-4613, USA www.airmar.com
Copyright © 2002, 2009 All rights reserved.
