Page 1 of 2 12 LastLast
Results 1 to 10 of 15

Thread: Salinity and ph reading a problem

  1. #1
    Join Date
    18.12.2010
    Location
    Brighton
    Posts
    42

    Default Salinity and ph reading a problem

    I have p3 and expansion box

    Both are reading salinity 100ms !

    I just purchased a new conductivity salinity probe and installed this today
    done calibration and it's now giving me a reading of 96ms !!!! Refractoneter gives a reading of 36 which is about 53ms - my p3 is connected to my ghl in case any one from ghl wants to access my profile to see the prob

    With the ph again after claiberation and installing a new probe it's reading 10.5 as it was before

    Salinity prob was not cheap to buy and want to know if it's defective

    Thanks
    Last edited by king; 29.10.2016 at 14:43.

  2. #2
    Join Date
    18.12.2010
    Location
    Brighton
    Posts
    42

    Default

    anyone any help pls, i did reset gal controller with the same problem

  3. #3
    Join Date
    27.05.2015
    Posts
    2,488

    Default

    What reading do you get from each probe when it sits in the calibration fluid? Wait at least 10 minutes before taking a measurement.

    Please post screenshots of your pH and Conductivity settings page.

  4. #4
    Join Date
    18.12.2010
    Location
    Brighton
    Posts
    42

    Default

    OK i will do this tonight when i get home

    will post results

    regards
    zah

  5. #5
    Join Date
    18.12.2010
    Location
    Brighton
    Posts
    42

  6. #6
    Join Date
    18.12.2010
    Location
    Brighton
    Posts
    42

    Default

    please check the screenshot still no progress i did leave the probe as suggested for 10 minutes and still reading 100 !

  7. #7
    Join Date
    18.12.2010
    Location
    Brighton
    Posts
    42

    Default

    any help from anyone ?

  8. #8
    Join Date
    27.05.2015
    Posts
    2,488

    Default

    We're talking about two probes here: pH and Conductivity.

    Are these connected to the P3 unit or the expansion box?

    Please disconnect these probes and connect it to the other device and see if you then get a change in reading. Please also provide me with a screenshot of your probe/sensor menu, I need to see the Sensor Index numbering.

  9. #9
    Join Date
    18.12.2010
    Location
    Brighton
    Posts
    42

    Default

    yes to probe

    the two probes i am referring to are connected to the p3

    i tried to disconnect the salinity probe and hook it into expansion box one and i got a different reading down from 100ms to 1.2ms

    ph reading in the expansion box was different was 3.5 i also tried to calibrate both probs on the expansion box and still gave me 1,2 for salinity and 3.5 for ph

    can the screenshot be taken from myghl ? or do i have to take it from ghl centre software ?

  10. #10
    Join Date
    18.12.2010
    Location
    Brighton
    Posts
    42

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •