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Thread: Conductivity probe calibration

  1. #1
    New User
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    Conductivity probe calibration

    Hey apex users,I just switch from my digital aquatics to the 2016 apex module but calibration of the salinity probe seems to be more of a challenge than I expected, I seem to can’t get the probe to give me a straight reading unlike the digital aquatics calibration is straight forward just follow the instructions and your done.
    All videos on YouTube gives examples of the earlier modules, do anyone have a link for the 2016 module on how to properly calibrate the salinity probe?

  2. #2
    Frequent Contributor zombie's Avatar
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    Dec 2013
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    The overall process is the same for the 2016. Just a slightly different interface. Make sure you do manual calibration not auto, and also make sure that the packet is floated in the sump for 30 minutes before calibration and you use a clip or magnet to keep the packet touching water while it's settling.

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

  3. #3
    Frequent Visitor rkpetersen's Avatar
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    Jun 2017
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    I like to put the packet in a small beaker filled with tank water, which is then taped to the inside wall of the sump. A small water bath, basically. It also makes it less likely that I'll spill any of the pH standard in my tank. (Tip: if you do spill pH standard, your phosphate level will rise, perhaps dramatically, since the buffer typically contains phosphoric acid.)

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