Dive lights are generally offered with a preinstalled EO-Cord. The advantage of this is that the cable is properly installed and the minus and the positive pole are not mixed up. What happens if the EO-Cord breaks and you need to change it by yourself? Or maybe you want to switch the plug connection to one based on an EO-Cord? All this is possible, yet a couple of things need to be considered.
The greatest risk when installing an EO-Cord is to reverse the plus and minus contacts. This would be a severe mistake and in most cases, it would damage the dive light or the battery. In case of faulty wiring, the SCALEO infinity is equipped with an short-circuit and reverse polarity protection and won’t sustain any damages. However, extra work would be caused since the polarity needs to be changed again. The fact that most dive lamps are not equipped with such a high-grade protection mechanism underlines the importance of correct polarity.
The depicted instruction is not only valid for the SCALEO infinity, but also for most other dive lights, batteries and heating vests that make use of an EO-Cord. As shown in the graphic above, the following principle applies for establishing the connection: On the user side, the socket is the minus pole and the protruding pin is the plus pole. On the battery side, the system is vice versa; the socket is the plus pole and the pin the minus pole.
If you are using the “classic” EO-Cords with black and white wires, the black cable should be connected to the pin and the white one to the socket.
On the user side, the white cable is the minus pole and for the SCALEO infinity, that white cable should be connected to the outer socket on the cable connection board. The black cable is the plus pole and is connected to the inner socket. On the battery side, the white cable is the plus pole and the black cable the minus pole.
If you are using Santi EO-Cords, the blue cable should be connected to the pin and the brown cable to the socket.
On the user side, the brown cable is the minus pole. For the SCALEO infinity, the brown cable should be connected with the outer socket on the cable connection board. The blue cable is the plus pole and is connected to the inner socket. On the battery side, the brown cable is the plus pole and the blue cable the minus pole.
As for the Thor EO-Cords, the cable labeled with the number 1 is connected to the pin and the cable labeled with the number 2 is connected to the socket.
On the user side, the cable labeled with the number 2 is the minus pole. For the SCALEO infinity that cable no. 2 should be connected with the outer socket on the cable connection board. The cable no. 1 is the plus pole and is connected to the inner socket. On the battery side, the cable no. 2 is the plus pole and the cable no. 1 is the minus pole.
All information is without guarantee. Manufacturers may change the coloring or numbering without prior announcements. We don’t accept any liability for any resulting damage that may arise.
How to replace the EO-Cord of the SCALEO infinity
In order to replace the EO-Cord of the SCALEO infinity, following steps should performed:
Important: Disconnect the EO-Cord from the battery before dismounting, so that there is no current flow!
Dismounting the old EO-Cord
1. Separate the cable cover including the EO-Cord from the rest of the lamp head by pressing the flexible pressure piece on the bottom of the lamp (e.g. with the help of the pin of the EO-Cord) and simultaneously pull down the cable cover from the lamp head , without twisting both against each other.
2. Remove the 3 Philip screws on the inside of the cable cover
3. Pull the circuit board out of the cable cover
4. Press the white blocks of the spring clip and simultaneously pull the cord out
5. Remove the ferrite cores from the wires
6. Remove the cable gland with a 20mm nut or a plier
7. Remove the old EO-Cord
Installing the new EO-Cord
1. Strip the same amount of insulation off the EO-Cord as seen on the old cable (about 103mm)
2. If available: crimp a 1mm² ferrule
3. Reinsert the blue gasket into the nut of the cable gland
4. Loosely screw the nut onto the thread of cable cover
5. Insert the new EO-Cord through the cable cover with the insulation overhanging the nut by 1mm
6. Tighten the nut of the cable gland. The flat sides of the nut must point to the three gaps like shown in the picture.
7. Reattach the ferrite cores onto the wires
8. Reattach the cable ends to the spring clips. Pay attention to the correct polarity
9. Carefully pull the cable and test if things are fixated
10. Close the cable cover and while doing so check
-if the cable clamp is placed opposite to the drill hole
-if the ferrites are always positioned in a gap next to the nut
-for clamped cables
11. Reinsert and tighten the 3 Philip screws inside the cable cover
12. Test for correct polarity by using a multimeter
13. Reattach the cable cover to the lamp head. Have fun diving!