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Thread: PH probe stuck

  1. #1
    Regular Vistor
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    PH probe stuck

    I recently swapped my Apex Lite for a Classic Apex and everything is working save for my PH probe which has been stuck on a reading of 7. I've calibrated and it seemed to briefly work for a few hours, but now it's back to 7.

    Any help would be appreciated.


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  2. #2
    Frequent Contributor zombie's Avatar
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    Try calibrating from the display instead of the webpages (speeds thing up and works every time) as sometimes the webpage calibration won't take (don't know why but has happened to me a couple of times on an older apex lite). Make sure you leave the probe in each solution long enough to settle (I use 5 mins personally).

    You might be an engineer if...You have no life and can prove it mathematically.

  3. #3
    Regular Vistor
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    Still no luck.


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  4. #4
    Frequent Contributor zombie's Avatar
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    Probably time to email support then. A firmware update couldn't hurt in the meantime just in case but probably won't help.

    You might be an engineer if...You have no life and can prove it mathematically.

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