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  1. #14
    Join Date
    Nov 2009
    Location
    Kansas
    Posts
    2
    I also use the Testo 510, so far so good.

  2. #15
    Join Date
    Dec 2004
    Location
    Caledonia WI
    Posts
    881
    Dwyer has anything you could wish for. I have been using their products for over 30 years with no complaints.

  3. #16
    Join Date
    Nov 2011
    Location
    Philadelphia, PA
    Posts
    195
    Ok, so I just bought the testo 510. Checked out a lot of reveiws and this little tool looks awsome. I'm just not sure about one thing. Whats the difference between a pilot tube and a static pressure tube? The pilot tube is really expensive. Can I use the static pressure tube to check cfm? Thanks for all your help

  4. #17
    Join Date
    Feb 2011
    Location
    Georgia
    Posts
    189
    Testo 510 does velocity also so you can easily calculate cfm

  5. #18
    Join Date
    Nov 2011
    Location
    Philadelphia, PA
    Posts
    195
    Quote Originally Posted by chrisevansac View Post
    Testo 510 does velocity also so you can easily calculate cfm
    Yes, but how and can I do it with the static pressure tube?

  6. #19
    Join Date
    Dec 2004
    Location
    Caledonia WI
    Posts
    881
    You can't with static tips they don't measure velocity pressure. you need a pitot tube for that.

  7. #20
    Join Date
    Jun 2004
    Location
    Eugene, Oregon
    Posts
    1,018
    Quote Originally Posted by Jesjen829 View Post
    Yes, but how and can I do it with the static pressure tube?
    You can't. You need the pitot tube to measure total pressure and static pressure in order to determine velocity pressure. If you know velocity pressure to calculate fpm. With fpm and duct area cfm can be calculated.
    "The bitterness of poor quality remains long after the sweetness of low price is forgotten". --Benjamin Franklin
    "Don't argue with an idiot, they will drag you down to their level and beat you with experience". --Mark Twain
    http://www.campbellmechanical.com

  8. #21
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,395
    Quote Originally Posted by Jesjen829 View Post
    Ok, so I just bought the testo 510. Checked out a lot of reveiws and this little tool looks awsome. I'm just not sure about one thing. Whats the difference between a pilot tube and a static pressure tube? The pilot tube is really expensive. Can I use the static pressure tube to check cfm? Thanks for all your help
    Well, I guess that this question needs to be answered with a question, first.

    What equipment are you working on?

    Most smaller equipment, you can get away with static tips and, at most, a tachometer and amp probe to compute total airflow.


    A pitot tube is for much more accurate measurements than are typically required.

    I don't know many techs who carry a pitot tube.

  9. #22
    Join Date
    Jan 2013
    Location
    Dallas, TX
    Posts
    99
    Quote Originally Posted by Jesjen829 View Post
    Ok, so I just bought the testo 510. Checked out a lot of reveiws and this little tool looks awsome. I'm just not sure about one thing. Whats the difference between a pilot tube and a static pressure tube? The pilot tube is really expensive. Can I use the static pressure tube to check cfm? Thanks for all your help
    JesJen,

    I too am on the bandwagon with the Testo 510 crowd, which I use with a pitot tube at times. As a backup, and to satisfy the non-digital folks with whom I work, I keep a Dwyer magnahelic too.

    If you want to learn more about airflow and testing it the right way, I would strongly recommend the National Comfort Institute (NCI) Test and Balance class. It is a great way to understand the math and science behind what we do, and you will have a whole new world of potential profitability open to you.

    Link - NCI Certification:
    https://www.nationalcomfortinstitute...x.cfm?pid=1788

  10. #23
    Join Date
    Dec 2010
    Location
    Virginia
    Posts
    353
    A pitot measures both total and static pressure. It is concentric with the inner tube measuring total and the outer tube surrounds the inner and has several tiny holes and connected to the other end of a manometer. I also have the Testo 510 pocket pro, and was wondering how a pitot would work with it as far as how you would connect the inner and outer protions of the pitot? Also, when I bought mine it didn't come with any tubing or attachments and I am looking for a kit, something with a pitot and different sized static tips. Don't mean to jump in on someone else's thread but any of you guy's(gals) have any suggestions for that?

  11. #24
    Join Date
    Jul 2007
    Location
    Virginia
    Posts
    5,379
    Quote Originally Posted by millertime77 View Post
    I also have the Testo 510 pocket pro, and was wondering how a pitot would work with it as far as how you would connect the inner and outer protions of the pitot?
    High side (+) of manometer to Total Pressure - hook to connection that is straight out the end of pitot tube.

    Low side (-) of manometer to Static Pressure - hook to connection that is 90 offset of the end of pitot tube.
    Instead of learning the tricks of the trade, learn the trade.

  12. #25
    Join Date
    May 2007
    Location
    Central NJ Area
    Posts
    788
    Testo 510 and Dwyer magnahelic for TESP test and other duct testing

  13. #26
    Join Date
    Jan 2013
    Location
    Henry county,ky
    Posts
    81
    I got a 2 port uei, does everything I need. Reliable, and if I remember it wasn't too over priced.

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