Re-attaching Current-USA IR sensor? - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 02-03-2014, 02:37 AM Thread Starter
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Re-attaching Current-USA IR sensor?

http://www.amazon.com/Current-USA-Satellite-Freshwater-Aquarium/dp/B00C7OTF9E/ref=sr_1_2?ie=UTF8&qid=1391398330&sr=8-2&keywords=current+usa
I need to feed the IR sensor through a tiny gap between the wall (brick) and the tank (drilling a whole large enough for the sensor isn't an option).

Unfortunately, I've already clipped the wire under the assumption that the cable had two or three copper conductors that could be easily fed through the wall and re-spliced. However, inside the cable is three metallic colored jackets (red, blue, copper) with what appears to be a fine, thread-like material in the center (fiber optic???!).

I have quite a lot of experience soldering and tinkering with electronics, so I didn't think it would be a problem at all...

Anybody have experience or hints before I attempt to open the unit and void the warranty further?
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post #2 of 7 (permalink) Old 02-03-2014, 03:18 AM
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The thread like material is actually like an insulator so no issue with that I would cut the casing back a little bit and put a bigger heat shrink over the entire cable and smaller on each individual wire and solder it and heat shrink it completely. Soldering is the best way to make a connection. Though if you don't feel up to that task I would say wire nuts work well too, just silicone them or wrap them in tape well if they may be exposed to evaporation

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post #3 of 7 (permalink) Old 02-03-2014, 05:29 AM Thread Starter
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Thanks! Right after I posted, I went ahead and tried to tin the wires with solder. What looked like shiny metal conductors were indeed the insulators - they melted away and revealed very tiny copper conductors beneath. Heatshrinked [heatshrunk?] the three inner wires and a larger one on the outside, and now my $120 light actually works again.
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post #4 of 7 (permalink) Old 02-03-2014, 09:25 PM
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Nicely done glad to hear it

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post #5 of 7 (permalink) Old 02-13-2014, 10:28 PM
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Do you know what kHz the ir sensor is it 36 or 38 I am buying one where the sensor was cut and lost also will any dc 12v work for power

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post #6 of 7 (permalink) Old 02-13-2014, 10:49 PM
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Its 38k.

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post #7 of 7 (permalink) Old 02-14-2014, 01:04 AM
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Ok great thanks

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