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Thread: How to calibrate a pH controller

  1. #1
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    How to calibrate a pH controller

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    Got the eheim pH controller a few months back, but lost the manual. Not too sure how to calibrate and set the pH.

    This pH controller has 4 buttons.
    cal: I assume this is the calibrate button
    + :
    - :
    set:

    Having problems with setting the target pH, as well as the calibration part. Anyone can help?[:]

  2. #2
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    It might help if you tell us the brand and model of the controller. Another option is to email the manufacturer.
    Vincent - AQ is for everyone, but not for 'u' and 'mi'.
    Why use punctuation? See what a difference it makes:
    A woman, without her man, is nothing.
    A woman: without her, man is nothing.

  3. #3
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    Do you still have the PH 7, PH 4, and KCL Solutions?
    [email protected]
    ----------------------------------------------------------
    The title below my name does not make me a guru...listen at your own risk!...

  4. #4
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    distilled water should have ph of 7 ? no ??

  5. #5
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    distilled water should have ph 7 but it is not buffered so it could be affected by co2 diffusing in from the air.
    anyway you'll need 2 calibration solutions to perform proper calibration.
    thomas liew

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