Refractormeter Issues

Discussion in 'Water Parameters and Additives' started by pyke, 16 Oct 2015.

  1. pyke

    pyke

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    Hi all,

    Hoping for some help here, probably something silly. I bought a second hand refractometer. When I initially received it I did a calibration with RO water and then tested my tank water and it worked correctly.

    But a few months later, I calibrate the refractometer as I always did with RO water but its not over reading my salinity. My hydrometer shows the correct value but the refractometer is showing in the region of 1.05 when the hydrometer shows 1.024.

    Any ideas?
     
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  3. RiaanP

    RiaanP Moderator

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    did it dropped perhaps?
     
  4. pyke

    pyke Thread Starter

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    I don't think so, by your response this sounds unusual. But is a possibility a it gets stored on a shelf up high
     
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