Calibrating a PH Probe

Discussion in 'General Reef Topics' started by james37128, Jan 8, 2009.

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  1. james37128

    james37128 Coral Banded Shrimp

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    Awesome Otty, looking forward to seeing your results!
     
    james37128, Jan 8, 2009
    james37128, Jan 8, 2009
    #11

    2. Click Here!

  2. Otty

    Otty Giant Squid

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    Well James I finally got a chance to calibrate the probes and you were right, I got better readings from 4.0 and 10.0 then 7.0 and 10.0.

    They were as follows. 7.0 & 10.0 solution calibration:
    4.0 = 3.76 / 7.0 = 6.98 / 10.0 = 10.0

    Then the 4.0 & 10.0 solution calibration:
    4.0 = 3.97 / 7.0 = 7.04 / 10.0 = 9.99

    I would have to say the 4.0 & 10.0 done better but Curt from Neptune told me I should use closer to the range I wanted. I will keep it like this and see what it does in a month.
     
    Otty, Jan 10, 2009
    Otty, Jan 10, 2009
    #12
  3. RemickJ

    RemickJ Teardrop Maxima Clam

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    Great Thread. Where do you get these solutions from? I have an ACIII but have not calibrated yet.
     
    RemickJ, Jan 10, 2009
    RemickJ, Jan 10, 2009
    #13
  4. Otty

    Otty Giant Squid

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    Neptune: Premium Aquatics

    About half way down the page you will see the different type of solution.
     
    Otty, Jan 10, 2009
    Otty, Jan 10, 2009
    #14
  5. james37128

    james37128 Coral Banded Shrimp

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    Good to hear someone is getting similar results. What brand and grade probe are you using? I have been using American Marine Pinpoint, I had to send two back because of "damage in shipping" before I got one that worked. I am not sure how these get damaged in shipping when they are in a very well padded box. When I replace (probably not for another year) I am thinking going with something else, but seems like everyone uses the pinpoints.
     
    james37128, Jan 10, 2009
    james37128, Jan 10, 2009
    #15
  6. Otty

    Otty Giant Squid

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    I use lab grade Pinpoint and Neptune pH and ORP probes.
     
    Otty, Jan 11, 2009
    Otty, Jan 11, 2009
    #16
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