Airmar Splash-proof Junction Box User Manual

INSTALLATION INSTRUCTIONS

Junction Box

Terminal Style

WARNING: 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.

terminal block screw (2)

grommet (4)

cap

terminal screw (16)

mounting screws

terminal block

connector

mounting screws

tab (2)

IMPORTANT: Please read these instructions

17-037-01 rev. 04 12/14/10

completely before proceeding with the installation. These instructions are to be used in conjunction with your instrument manual and the instructions provided with your transducer(s), sensor, or other components.

Applications

• To provide a water, fog, and salt-resistant splice.

• To splice marine cables up to 7.5mm (5/16") in diameter.

• To splice marine cables with up to eight wires. (Two crimp connectors are included for additional wires.)

• To splice Airmar TRIDUCER cables.

multisensor and other Airmar

Pre-Installation Test

NOTE: For Airmar Products Only

1. Connect the transducer or multisensor to the echosounder with

the transducer in the water and aimed at the bottom. Check for a depth reading on the instrument (and temperature reading if applicable).

2. To check the speed and temperature functions, connect the

sensor to the instrument. Spin the paddlewheel and check for a reading of several knots. Check for the approximate air temp.

3. If a test produces no reading, check all the connections and

repeat the test. If a function (depth, speed, or temperature) is inoperative, do not install the unit; return it to the dealer.

Tools & Materials

Safety goggles Dust mask Screwdrivers: Phillips and blade Pencil Drill Drill bit: 3mm or 1/8" Box-cutter knife (some installations) Cutting pliers Alcohol Wire strippers Crimping pliers (nine or ten-wire cables) Petroleum jelly (nine or ten-wire cables) Cable ties

black sleeving

large diameter sleeving

Figure 1. Junction box and contents

small diameter sleeving

Parts Needed

CAUTION: Do not puncture unused grommets.

1. Remove the red cap and the contents of the junction box including the terminal block (see Figure 1).

2. The type of sensor and the size of the cable determine which instructions to follow (see Table 1 on page 4). Determine the grommets that will be needed. Using a small Phillips screwdriver, puncture the center of the appropriate grommets.

NOTE: The small grommets (marked 3-5) provide moisture sealing for cables from 3.5–5mm (1/8–3/16"). The large grommets (marked 5-7) provide moisture sealing for cables from 5–7.5mm (3/16– 5/16"). Both set of grommets can accommodate smaller cables than suggested, but the sealing will be less effective. Larger cables can be used, but insertion will be difficult.

3. Set aside the sleeving that will be needed.

Mounting Location

1. Select a convenient dry mounting location along the cable route, preferably 1–1.5 m (3–5') from the transducer/sensor to facilitate future replacement.

2. Position the junction box so the grommets are easily accessible to the cable. Mark the location of the mounting holes.

3. 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.

CAUTION: Proceed with care!

Figure 4. Preparing the cut ends of the cable

64mm (2 1/2")

remove cable jacket and

inner foil

13mm (1/2")

25mm (1")

cable jacket

C332

single wires

shielded pair

bare wire

outer bare wire or braid

remove insulation

outer foil shielding

shielded pair

outer bare wire

cut

foil shielding

cable jacket

Figure 2. Cutting the TRIDUCER® multisensor cable

shielded pair

single wires

outer bare wire

tab

large grommets (marked 5-7)

instrument

bare wire

small diameter clear sleeve

large diameter clear sleeve

folded stripped end

black sleeve

sensor

Figure 3. Applying the sleeving (C332 cable shown)

A. One-cable TRIDUCER® Multisensor

NOTE: These instructions are not for use for with zip-cable (follow instruction B).

Preparing

CAUTION: Take care not to damage the inner wires. when slitting the jacket.

1. Disconnect the multisensor from the instrument.

2. Select the point where the cable will be spliced and mark the jacket.

3. Place the cable on a hard, flat surface. At the marked location, cut a 127mm (5") long slit in the cable JACKET only. DO NOT CUT ANY WIRES AT THIS TIME.

4. At the slit, bend the cable in half and remove the outer foil shielding to expose the shielded pair(s) inside (see Figure 2). Lift one shielded pair away from the other wires. Being careful not to allow

the shielded pair or the cutting pliers to touch the outer bare wire, CUT ONLY THE SHIELDED PAIR. Repeat this process until all

the shielded pairs are cut. (This will allow any built-up electrical charge stored in the transducer to be discharged.)

5. Cut the remaining single wires and the outer bare wire.

6. Cut away the slit segment of the cable jacket and the outer foil shielding between the points marked “X”.

NOTE: If the multisensor has not been installed, do so at this time following the instructions provided with it.

7. Apply alcohol to each cable jacket to ease sliding. Carefully push approximately 203mm (8") of each cable end through a large grommet (marked 5-7) (see Figure 3).

8. Separate the shielded pair(s) from other wires and remove 38mm (1-1/2") of the inner foil shielding (see Figure 4).

9. Strip 13mm (1/2") of insulation from the end of each insulated wire to make a stripped end.

10.Slide a large diameter clear sleeve over the foil shielding of the shielded pair(s) until it touches the cable jacket. If there is a bare wire in the shielded pair, slide-on a small diameter clear sleeve until it touches the large diameter sleeve. Slide a black sleeve over the outer bare wire of each cable and position it against the cable jacket (see Figure 3).

NOTE: For ease in holding the sleeves in place and connecting to the terminals, fold the stripped ends to about half their original length, twist the ends, and bend them 90

11.Go to “Connecting” on page 3 and follow the instructions.

°.

B. All Splices—Except One-cable TRIDUCER

Multi-

sensor (follow instruction A)

Preparing

1. Disconnect the sensor(s) from the instrument.

2. Select the point(s) where the cable(s) will be spliced and mark the jacket(s) with a pencil.

NOTE: With zip-cable, split the cable into two separate cables for a distance of 0.5m (18") at the selected junction-box location (see Figure 5).

3. At the marked location(s), cut each cable ONE AT A TIME. (When the depth cable is cut, any built-up electrical charge stored in the transducer will be discharged.)

NOTE: If the sensor(s) has not been installed, do so at this time following the instructions provided with the product(s).

+ 2 hidden pages

Airmar Splash-proof Junction Box User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual