device will detect voltage w/o current flowing. Now, the guy I spoke with had to ask someone else, and so who knows. (He said, "Well, some current is always flowing.") But that could be enough for me to at least get the thing -- but verify, then trust.
Yes.
Lance
beats me how... i was tought that those pesky little electrons had to move to generate a magnetic field that any induction can be based upon...
irax.
Lance Spauld>
Well, current is certainly NOT always flowing. I'm not saying it couldn't work but I don't think it is by induction.
I was reading some of your other posts and found this:
"Porter Cable worte the definitive standard. If you can beat their performance, at a lower price, then do it."
Interesting comment. I bought a framing nailer at HF for $139. The parts are interchangeable with the Porter-Cable framing nailer available at Sams Club for $227. Mine drives nails like bullets and I built about 300' of fence with it and experienced no problems.
Your creed should be, "Ignorance is bliss" because you don't have the intelligence to determine what tools to buy at HF and what tools to buy elsewhere. Because of this, you default and buy them all elsewhere and look down your nose at the smart folks.
The Pacific rim does not engineer, they reverse engineer. It takes no brains to copy something. You go to a name brand tool store and buy your Swanson Speed Square (TM), I'll buy the one cast from a mold made from a Swanson and pay 1/4 the price.
Incidentally, when I started this thread, we were comparing a $274 Fluke Clamp Meter to a $17 Harbor Freight Clamp Meter. Guess which one reads 0.2 amps when measuring air? The Fluke and for low current, less than 3 amps or so, it adds that value to the displayed current, verified with a calibrated, current limited, laboratory model, bench power supply. So, pick you up one of those Flukes too but if you need accuracy, give me a call. I may loan you mine.
A clamp meter? All of my clamps have their size stamped or cast right into the side. It doesn't really sound like you need a "meter" - maybe a better bet would a set of gage blocks to verify that the number stamped on the side is correct?
snipped-for-privacy@nospam.com (Bruce) wrote in news: snipped-for-privacy@news.houston.sbcglobal.net:
It does work by measuring the inductive field, but they only work on AC voltage because of the wave form. Since it is always cycling from 0 volts to full voltage at 60hZ, the detector can catch the magnetic field induced from the cycling.
They WON'T work on DC voltage, or at least the one I have won't.
Michael
Wow. Electrician in a gas processing plant. You have many ways to die -- and make the evening news. (Hope that is not too morbid -- just sounds hi-risk.) So, safety must be extra important. Thanks for the info.
Igor wrote in news: snipped-for-privacy@4ax.com:
Hah! :-) Yeah, I was sorta jumpy when I first started working around natural gas, but it is something you get used to. I just have to remember that everything around me is under 800psi pressure or higher and burns like hell! We process about 130 million cubic feet of gas per day, so there is LOTS of opportunity to screw up if we are not careful. We have a great bunch of guys that know there business though, so we actually feel pretty safe there.
Since we're being pedantic, it is cycling from +120 to -120 volts, not 0.
If we want to be pedantic and correct, it would be +169 to - 169 volts.
120 volts is the root mean square of the peak voltage in the waveform.Rich S.
There's a piece of trivia that I never knew existed, let along the answer to it. It is like when I learned the word "defenestrate" in math class in
7th grade. Out of context, but interesting all the same. Oh, the wreck.
"defenestrate" ... filing that away under "great Scrabble words." :)
Rich S.
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