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  1. #1
    Join Date
    Aug 2007
    Posts
    406

    best ultrasonic leak detector?

    I want to buy an ultrasonic leak detector to add to my arsenal. I want to know which one you guys think is the best and why. Thanks

  2. #2
    Join Date
    Jun 2010
    Location
    Freehold, N.J.
    Posts
    5

    Ultrasonic leak detector

    We use a Amprobe brand ultrasonic leak detector. I don't know the model # but it's nothing too fancy. It comes with the detector, 2 probe attachments, headphones & carrying case. Runs on standard disposable batteries.
    I've had very good success with this technique in finding the tiniest leaks.
    I believe the unit runs about $250 & definitly worth it.

  3. #3
    Join Date
    Jun 2009
    Location
    StL, MO
    Posts
    592
    My experience with the AccuTrac VPE has been disappointing at best.
    UA LU 562

  4. #4
    Join Date
    Oct 2003
    Location
    las vegas
    Posts
    1,505
    i have an old uld 1 amprobe that still works well ..
    i alsohave an accutrak that after a small learning curve works very well.
    on some leaks i have better sucess pulling the unit into a vac. to
    leak check rather than using a pressurized system. must have something
    to do with the sound frequency they work on.

  5. #5
    Join Date
    Oct 2003
    Location
    South Carolina
    Posts
    1,242
    I use the Amprobe ULD, a CPS 790, an old halide torch, a stethoscope, nitrogen & bubbles and my ears.
    Of the bunch, the Amprobe and the CPS are my favorites.
    “Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.” —Albert Einstein

  6. #6
    Join Date
    Oct 2007
    Location
    ATLANTA
    Posts
    120
    Quote Originally Posted by marvin View Post
    i have an old uld 1 amprobe that still works well ..
    i alsohave an accutrak that after a small learning curve works very well.
    on some leaks i have better sucess pulling the unit into a vac. to
    leak check rather than using a pressurized system. must have something
    to do with the sound frequency they work on.
    Do you mean using the ultra sonics while the system is in a vacuum?

    Thanks

  7. #7
    Join Date
    Oct 2003
    Location
    las vegas
    Posts
    1,505
    Quote Originally Posted by AtoZhvac View Post
    Do you mean using the ultra sonics while the system is in a vacuum?

    Thanks
    go to the accu trak web site & you will see that they can be used to locate a vac. leak.
    had my first experiance using one on an old trane sidewinder & we
    were able to locate the leak in a vac. with it. dont know what brand it
    was but remember it was made in england.
    have found the accutrak vpe to be very reliable but i usually start with around 50 psi & work my way up as needed. has something to do with the frequency range they operate in.

  8. #8
    Join Date
    Apr 2007
    Location
    Saint Augustine, Florida, United States
    Posts
    1,168
    Old timer at previous job only used ultrasonic. His success rate was very good. I just ordered an Amprobe to add to my 3 h10s (1-"A", 1-"PM", and 1"G") I use the "G" most, but sometimes grab my dtek, though it is the most frusterating of all, really succeptable to wind through returns/airhandlers etc. Hope the ultrasonic rounds out my leak checks........

  9. #9
    Join Date
    Sep 2006
    Posts
    159

  10. #10
    Join Date
    Apr 2007
    Location
    Saint Augustine, Florida, United States
    Posts
    1,168
    Damn. They don't even list the price, must cost a month's salary.

  11. #11
    Join Date
    Oct 2003
    Location
    South Carolina
    Posts
    1,242
    When I bought mine, ten years ago at Grainger in Charlotte, NC., I paid about $445 and that included the transmitter.
    “Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.” —Albert Einstein

  12. #12
    Join Date
    Dec 2005
    Location
    South Bend, In.
    Posts
    529
    Yikes, its gotta be good even the navy requires it on their subs. Which means big $$$$$$.
    So you didn't ask, what you though was a stupid question. Now how, are you going to tell the boss about your stupid screw up?

  13. #13
    Join Date
    Nov 2008
    Location
    Meriden, Kansas
    Posts
    435
    I agree about the frequency. We use accutracs, never tried an amprobe. They seem to always find the leak we don't find with a D-tek or bubbles. But they miss some of the leaks that we find easy the other ways. I think it has to do with frequency.
    I always start with a D-Tek select and then try something else if that doesn't work. Lots of times the D-Tek goes off in an area but I cant pinpoint it, then I pinpoint it with the ultrasonic or bubbles.
    Anything I say here is only my opinion. Even if you understood what I said.... What I said may not even be what I meant.

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