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

Voters
128. You may not vote on this poll
  • Yes

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

    12 9.38%
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Results 131 to 143 of 224
  1. #131
    Join Date
    Jul 2001
    Location
    VA
    Posts
    2,801
    Fitter, what you were told is correct.....in that when our gauge reads 30"........it only tells us we are producing vacuum because the gauges arent accurate enough, and we have to rely on the micron gauge for accuracy..... You have a good concept of that.
    ___________________________________________


  2. #132
    Join Date
    Apr 2007
    Posts
    6,285
    Quote Originally Posted by beenthere View Post
    I wish we could find a clear glass tube. That could have a few drops of water at several locations to run the test over again.

    I think it more possible when the evap is in a cool basement.

    We can redo it. I have much better material now to do the experiment with and still have my glass jar. It would be nice if I had a means to control temp of the surface the jar was sitting on.

    The floor temp if I remember correctly was 66*. The water in the mason jar was sitting directly on the floor. So at least @ 61* and a 3 cfm dual stage vac. pump and several drops of water will freeze before it is removed. Apparently from another vac. level chart I have it reads @ 70* 20,000 microns the moisture will start to be removed. I still think it's possible if you have a lot of water in the system....a few drops that might be in a typical system or the amount of moisture from the atmosphere that enters the system is unlikely to freeze I would think.


    I have been wanting to do it again but for lack of a better term didn't want to beat a dead horse.

  3. #133
    Quote Originally Posted by DPSwitch View Post
    Fitter, what you were told is correct.....in that when our gauge reads 30"........it only tells us we are producing vacuum because the gauges arent accurate enough, and we have to rely on the micron gauge for accuracy..... You have a good concept of that.
    You sure have a round about way of saying that (could you have said that like an hour ago before both my kids were screaming because mom was getting in a heated disscussion instead of cooking dinner? ) lol

    I like you, dpswitch, you seem very helpful, and you too mr bill

  4. #134
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,591
    Need to figure out a way to hook several jars up in series. Each with a few drops in.

    See if they are all effected the same way.
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  5. #135
    Join Date
    Jul 2001
    Location
    VA
    Posts
    2,801
    It took me that long to get it to there..... and nobody learns anything If we don't bang these ideas around the room now and then.
    ___________________________________________


  6. #136
    Join Date
    Aug 2003
    Location
    Baltimore area
    Posts
    1,818
    Damn so we have finally found someone who likes Dp !! WTF is this world comming to !!! lol

    This thread has been jumping along . I left for an hour or so and came back to 4 more pages !!!

  7. #137
    Join Date
    Aug 2003
    Location
    Baltimore area
    Posts
    1,818
    Oh and Dp , I am glad that you finally realized that I do know it all !! lmao

  8. #138
    Join Date
    Oct 2007
    Location
    Midwest
    Posts
    194
    I don't have the energy to read all 136 posts, can anyone give me a condensed version of the answers :-)

  9. #139
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,591
    Don't trust your compound gauge for vacuum.
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  10. #140
    Join Date
    Jul 2001
    Location
    VA
    Posts
    2,801
    Quote Originally Posted by refrtech View Post
    Damn so we have finally found someone who likes Dp !! WTF is this world comming to !!! lol
    It won't last.....

    Trust me.
    ___________________________________________


  11. #141
    Join Date
    Oct 2007
    Location
    Midwest
    Posts
    194
    Quote Originally Posted by beenthere View Post
    Don't trust your compound gauge for vacuum.
    Thanks, never did.

  12. #142
    Join Date
    Jul 2001
    Location
    VA
    Posts
    2,801
    Quote Originally Posted by ZZZRSC View Post
    I don't have the energy to read all 136 posts, can anyone give me a condensed version of the answers :-)
    For vacuum measurement:

    Micron gauge good.

    Compound gauge bad.

    DPSwitch good.

    Refrtech, clover, Mr. Bill, and beenthere bad.
    ___________________________________________


  13. #143
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,591
    LOL... half the fun, was in how the conclusion came to be.

    Read teh last 5 pages or so.
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