Testo 557 reading 000 microns
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  1. #1
    Join Date
    Apr 2006
    Location
    Barrie Ontario
    Posts
    318

    Testo 557 reading 000 microns

    Anybodys testo doing this, this unit is maybe two weeks old and showing that the system is at 000 microns. This is not mine a buddy asked me to come with him on a job and show him how to use it and teach him about all this micron mumbo jumbo. Apparently it's only the second time out of the case and the first time on a system.
    For some reason I learn more with my mouth shut

  2. #2
    Join Date
    Mar 2007
    Location
    wedged in freezer shelf
    Posts
    6,460
    Isn't under 499 a reading of nothing? 1000..... 500...... 000
    “If You Can Dodge A Wrench You Can Dodge A Ball”

  3. #3
    Join Date
    Feb 2010
    Location
    In a boiler room
    Posts
    7,031
    Quote Originally Posted by itsiceman View Post
    Isn't under 499 a reading of nothing? 1000..... 500...... 000
    Really? That would not be very useful.

  4. #4
    Join Date
    Apr 2006
    Location
    Barrie Ontario
    Posts
    318
    Yea after twenty minute vac with cores in threw manifold with a line set that was open in his truck for who knows how long. And it held at 0 for fifteen minutes without budging for some reason I don't believe it was accurate
    For some reason I learn more with my mouth shut

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