Ph meter probe

Discussion in 'Homebrewing' started by Cmack15, Jun 30, 2014.

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  1. Cmack15

    Cmack15 Pundit (827) Sep 7, 2008 Massachusetts

    How long does the ph meter probe tend to last? I am not sure if mine is starting to go. When I calibrate my meter and the put back into the buffer solutions it tends to read 0.3 lower.
    Cheers
     
    #1 Cmack15, Jun 30, 2014
  2. jae

    jae Initiate (0) Feb 21, 2010 Washington

    Maybe ~ a year for the Hanna ones.
     
    #2 jae, Jun 30, 2014
  3. billandsuz

    billandsuz Pooh-Bah (2,097) Sep 1, 2004 New York
    Pooh-Bah

    the life of the bulb is variable.
    replace your buffer solution before deciding the bulb is shot.
     
    #3 billandsuz, Jun 30, 2014
  4. Cmack15

    Cmack15 Pundit (827) Sep 7, 2008 Massachusetts

    I have been making my own buffer solution each time I calibrate. I use 100mL distilled water and appropriate tab for each buffer.
     
    #4 Cmack15, Jun 30, 2014
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