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Thread: Calibration of salinity

  1. #1
    New User
    Join Date
    May 2018
    Location
    Israel
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    6

    Calibration of salinity

    Hello friends I have a new Apax for about two weeks, I discovered salinity as explained to me and I saw a video, I did exactly what I needed and everything worked out and showed me salinity 34.4. My half-hour guest dropped to 29.8 and did not move, so I did twice since calibration and every time the same phenomenon !! I was told to wait a few days had already been a week, what to do what could be the problem ?! Thanks.


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  2. #2
    Frequent Contributor zombie's Avatar
    Join Date
    Dec 2013
    Location
    Denver, CO
    Posts
    13,176
    Make sure the packet exactly matches tank temp and there are no bubbles in the probe when you calibrate and when you put back into the tank.

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  3. #3
    Frequent Visitor
    Join Date
    Jul 2017
    Location
    UK
    Posts
    129
    I had a few problems when I first set mine up and it was down to me not doing it correctly. I did not submerge the probe deep enough into the water, I had a few bubbles trapped as indicated in the above post but the key one was I did not align the temperature of the calibration fluid with the temperature of my aquarium. I brought some new calibration fluid and floated it in my aquarium for 30mins and then calibrated the probe. Now it is really accurate.
    Hope that helps.

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