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  1. #1
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    Mar 2012
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    Question Testo 550 with unstable pressures reading.



    Hello!!!
    I hope this is the correct place to this post!!!
    I have a Testo 550 about 2.5 years.
    Now the readings are constantly unstable.
    Do anyone see something like this?
    https://youtu.be/n5KQrOViqP0



  2. #2
    Join Date
    May 2012
    Location
    England
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    Re: Testo 550 with unstable pressures reading.

    .

    Transducers self calibrate in atmospheric air pressure.
    Check that the sensor is not blocked at the connection point and check the batteries are good and powerful enough.

    Rob

    .
    .. ... -. .----. - / -- --- .-. ... . / -.-. --- -.. . / --. --- --- -..

  3. #3
    Join Date
    Oct 2013
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    Re: Testo 550 with unstable pressures reading.

    Quote Originally Posted by Chillermaster View Post
    Hello!!!
    I hope this is the correct place to this post!!!
    I have a Testo 550 about 2.5 years.
    Now the readings are constantly unstable.
    Do anyone see something like this?
    https://youtu.be/n5KQrOViqP0
    HI
    YOU may need to clean them from oil with special petrol don't remember name its cheap and easy to buy.

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