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Thread: Measurement data / Graphs wrong

  1. #1
    Join Date
    03.07.2015
    Posts
    16

    Default Measurement data / Graphs wrong

    Hello,

    I'm currently setting up my new reef tank and been setting up the P4 alongside.

    Now I think my measurement data or at least the graphs are wrong by -12hours.

    I've set up my Calcium reactor to be controlled by the profilux 4.
    So the pH is measured, CO2 is added when needed etc etc

    Now I've set it up yesterday (17/03) around 15-16h.
    That would mean my pH would start dropping then. (which it did)
    My graphs state that my pH started to drop on 17/03 around 3h in the morning (seems off by -12h)


    I've set up nocturnal change to start at 19h.
    My graphs state that my pH started to rise at 7h in the morning (seems off by -12h)

    And it dropped again at 19h, so again off by -12h

    Profilux system time is set correctly, PC time is set correctly.
    Am I missing something?

  2. #2
    Join Date
    27.05.2015
    Posts
    2,488

    Default

    Adjust the timezone setting in the GENERAL settings page. Measurement times are based on what you have set there.

  3. #3
    Join Date
    03.07.2015
    Posts
    16

    Default

    Time is set correctly
    Timezone (UTC+1) is set correctly
    Lattitude and Longitude are set correctly

    I was wrong in the first post, nocturnal change is set from 20:00 to 08:00.
    I've cleared the data yesterday and started again.

    General.PNG
    Here you can see that everything is set correctly for Brussels, Belgium
    value.PNG
    Here you can see that around 07:00 the pH starts to rise to 7.3 over the course of 6hrs.
    pH.PNG
    Here you can see that the pH value is ok (07:10h this morning)

  4. #4
    Join Date
    03.07.2015
    Posts
    16

    Default

    I’ve cleared the data and unchecked all the boxes to save the measurement data this morning.
    Will start saving the data again this evening and see what happens tomorrow evening.


    Verzonden vanaf mijn iPhone met Tapatalk

  5. #5
    Join Date
    03.07.2015
    Posts
    16

    Default

    So,
    I've cleared the data yesterday morning and unchecked the boxes so it wouldn't save any data.
    In the evening, I started recording data again, and this morning I went to check the measurements.

    It is still -11hrs.

    What am I doing wrong???

    pH_20180320.PNG
    06:59 19.03.2018 should be 19:59 19.03.2018
    17:49 19.03.2018 should be 06:49 20.03.2018
    Last edited by Liostar; 20.03.2018 at 06:56.

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