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-   -   Weird thing happened today. Low voltage current unning through CO2 tank. (http://www.homebrewtalk.com/f35/weird-thing-happened-today-low-voltage-current-unning-through-co2-tank-240193/)

BoxofRain 04-16-2011 08:44 PM

Weird thing happened today. Low voltage current unning through CO2 tank.
 
Went to go adjust the pressure on my tank and felt a very low voltage current. The current was felt on the tank and the regulator. No current on the sides of the keezer, the kegs or the taps. Went upstairs to do a internet search to see if this has happened to anyone else. Went back down a few minutes later to check back on it and the current was gone. The tank sits on the hump inside my keezer. Any ideas?

beninan 04-16-2011 08:55 PM

uhhh, is there anything electronic connected to the system? Like a temperature probe in a keg that's faulty and possibly back-feeding current through the CO2 system?
Drinking too much?
Is there any moisture inside the refrigerator/freezer that may be carrying a voltage? Maybe you should take a volt meter and check for any A/C or D/C voltage from the regulator to ground?

Airborneguy 04-16-2011 09:07 PM

You sure it wasn't just a vibration from the fridge motor?

BoxofRain 04-16-2011 09:10 PM

Quote:

Originally Posted by beninan (Post 2843756)
uhhh, is there anything electronic connected to the system? Like a temperature probe in a keg that's faulty and possibly back-feeding current through the CO2 system?
Drinking too much?

LOL, It was my first drink. The only thing I can think of was that I had a damp sweater hanging on the lid of the keezer to dry. Part of it could have been over my Johnson control....even more so when I opened the lid.

Quote:

Originally Posted by Airborneguy (Post 2843773)
You sure it wasn't just a vibration from the fridge motor?

No...it was a low voltage electric current. Flippin Weird, I tell ya.

Airborneguy 04-16-2011 09:23 PM

That is weird. Could it have been a static electricity thing? Admittedly, I know nothing about electricity.

beninan 04-16-2011 09:24 PM

I guess first thing would be to remove the wet sweater. Second, if you've got one, I would still check for voltage through the system. Maybe borrow a volt meter from someone or buy a cheap one from a hardware/electronics store if you don't have one. Sometimes voltage can and can not be felt through your fingers. I have found that you may not feel current though your finger tips at times, but when you brush your elbow or other sensitive skin across it, you might get a tingle.

BoxofRain 04-16-2011 09:28 PM

Quote:

Originally Posted by beninan (Post 2843810)
I guess first thing would be to remove the wet sweater. Second, if you've got one, I would still check for voltage through the system. Maybe borrow a volt meter from someone or buy a cheap one from a hardware/electronics store if you don't have one. Sometimes voltage can and can not be felt through your fingers. I have found that you may not feel current though your finger tips at times, but when you brush your elbow or other sensitive skin across it, you might get a tingle.

Good idea... I'll hit it with my multimeter.

Revvy 04-16-2011 09:29 PM

What exactly is under the hump in there? Isn't it the compressor motor itself? That's why it's in a hump? It's probably not very shielded and the weight of the bottle prolly presses down on the thin metal, making contact with the motor and causing some voltage to go through it. Heck even without the metal pressing down on it, it wouldn't be too surprising to think that if there's a motor turning in there, you're right in the footprint of the electro magnetic field of the motor, so I wouldn't be surprised to feel something. In fact next time if you notice it, carefully lift your bottle straight up and see if you feel the current go away as you lift it out of there.

BoxofRain 04-16-2011 09:44 PM

Quote:

Originally Posted by Revvy (Post 2843820)
In fact next time if you notice it, carefully lift your bottle straight up and see if you feel the current go away as you lift it out of there.

That's a really good idea. Thanks, I'll do that. I did forget to mention that the keezer wasn't running when this happened.

So I hit it with my multimeter probe and touched the other probe to complete the circuit and sure enough the needle moves a tiny bit. Funny thing is the needle moves more when I touch the tap than when I touch the bottle.

Revvy 04-16-2011 09:46 PM

Quote:

Originally Posted by BoxofRain (Post 2843843)
That's a really good idea. Thanks, I'll do that. I did forget to mention that the keezer wasn't running when this happened.

So I hit it with my multimeter probe and touched the other probe to complete the circuit and sure enough the needle moves a tiny bit. Funny thing is the needle moves more when I touch the tap than when I touch the bottle.

I'm no electrician, but even a motor that is off has juice running through it, right?

Got a rubber mat of any type, like a floor mat for a car? You could stick it on the hump and put the bottle on top of that too, it should shield it better.


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