View Poll Results: Do you use a micron guage when pulling a vacuum?

Voters
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  • Yes

    116 90.63%
  • Nope, we don't own one.

    12 9.38%
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Results 14 to 26 of 224
  1. #14
    Join Date
    Jul 2006
    Location
    NW burbs of Detroit
    Posts
    6,058
    Fooey.

    I can't find a mfg I can trust.

    Wat's the fav micron gauge being used by those WH O DO use them?
    Last edited by hvaclover; 06-22-2008 at 11:43 AM.

  2. #15
    Join Date
    Jul 2001
    Location
    VA
    Posts
    2,801
    Yellow Jacket
    ___________________________________________


  3. #16
    Join Date
    Jul 2001
    Location
    VA
    Posts
    2,801
    I've got a CPS also that is about the size of a gauge ....... some guys say they are a POS but i don't know.... I use it in tight spots. I can't recommend it yet.
    ___________________________________________


  4. #17
    Join Date
    Jul 2006
    Location
    NW burbs of Detroit
    Posts
    6,058
    RSA 560 analyzer has a built in micron scale, but one of the guys said measuring at the manifold is not accurate.

    An instrument that measures that small an increment has to be very accurate to be worthwhile to use and I don't think they can be had inexpensively.
    I would drop the money on the 560 if I had some reliable data instead of anecdotal
    testimonials.
    Anybody got any comments either way on that?
    Last edited by hvaclover; 06-21-2008 at 08:58 PM.

  5. #18
    Join Date
    Jul 2001
    Location
    VA
    Posts
    2,801
    Quote Originally Posted by hvaclover View Post
    RSA 560 analyzer has a built in micron scale, but one of the guys said measuring at the manifold is not accurate.

    An instrument that measures that small an increment has to be very accurate to be worthwhile to use and I don't think they can be had inexpensively.
    I would drop the money on the 560 if I had some reliable data instead of anecdotal
    testimonials.
    Anybody got any comments either way on that?
    I was looking at the same thing...... I got talked out of it.
    ___________________________________________


  6. #19
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,758
    YJ.
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    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  7. #20
    Join Date
    Jul 2006
    Location
    NW burbs of Detroit
    Posts
    6,058
    Quote Originally Posted by beenthere View Post
    YJ.
    OK. I got a YJ Brute evac/charging manifod. It has 1/4 plugs on the hi and lo sides. These are obviously for a micron instrument.

    Why than is it not good to measure vacuum at the manifold?

    I hear so many diff reasons I would like to seperate the the chaff from the wheat.

  8. #21
    Join Date
    May 2006
    Location
    Philadelphia, PA
    Posts
    1,398
    I use the Thermal D analog (450-2 I think). It's about 10 yrs old. Not sure what he did but an instruments tech at a customers lab compared it to his stuff and said it was accurate. That was 5 yrs ago. Probably time to verify it again.
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  9. #22
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,758
    Cause you reading the contaiminates of your manifold.
    Put a CRT on the access fitting, put a access tee on the CRT and hook your micron gauge to it. You can blank off the hoses with the CRT when you check to see if its holding.
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  10. #23
    Join Date
    Dec 2006
    Location
    Northern VA
    Posts
    389
    I have the CPS and just don't like it. The YJ is on order. The funniest part is my local HVAC supply house always thinks I'm crazy for buying alot of nitrogen, micron guage, differential thermometer and other tools over the years.

  11. #24
    Join Date
    Jul 2006
    Location
    NW burbs of Detroit
    Posts
    6,058
    Quote Originally Posted by beenthere View Post
    Cause you reading the contaiminates of your manifold.
    Put a CRT on the access fitting, put a access tee on the CRT and hook your micron gauge to it. You can blank off the hoses with the CRT when you check to see if its holding.

  12. #25
    Join Date
    Dec 2007
    Location
    Ohio
    Posts
    2,876
    Quote Originally Posted by quiet mike View Post
    I'm taking service procedures now and we are pulling vacums and using micron guages. I'm curious how many of you actually use on in the field. Thanks
    If you're not using one....you have no business being in the field.
    I need a new signature.....

  13. #26
    Join Date
    Dec 2007
    Location
    Ohio
    Posts
    2,876
    Quote Originally Posted by EverettsHVAC View Post
    I have the CPS and just don't like it. The YJ is on order. The funniest part is my local HVAC supply house always thinks I'm crazy for buying alot of nitrogen, micron guage, differential thermometer and other tools over the years.
    I have the CPS also...I love mine...works great
    I need a new signature.....

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