new Sybon refractometer... (calibration/measurement question)

Discussion in 'New To The Hobby' started by jimmy_beaner, Feb 16, 2011.

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  1. jimmy_beaner

    jimmy_beaner Teardrop Maxima Clam

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    So, I got a refractometer because the hydrometer wasn't providing consistent results... now I've heard about readings that are "off" around the true salinity when calibrated with freshwater. I don't have the 53 mS calibration fluid. What numbers should I look for tonight to hit 1.025 with the freshwater calibration?
     
    jimmy_beaner, Feb 16, 2011
    jimmy_beaner, Feb 16, 2011
    #1

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  2. kreator

    kreator Flamingo Tongue

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    I just picked up a Refractometer yesterday and I noticed I did have to calibrate it, it was reading +.05 with the calibration fluid that came with it. Before I calibrated it I took a reading with my R0/DI water and it read +.05, same as the calibration fluid.
     
    kreator, Feb 16, 2011
    kreator, Feb 16, 2011
    #2
  3. jimmy_beaner

    jimmy_beaner Teardrop Maxima Clam

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    I don't have an issue calibrating it to the calibration fluid... what I heard was that it won't read correctly at 1.025 if you calibrate with freshwater (likely more like 1.029 or 1.021 (I can't remember which way it errors))
     
    jimmy_beaner, Feb 16, 2011
    jimmy_beaner, Feb 16, 2011
    #3
  4. shoebox

    shoebox Bubble Tip Anemone

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    Took mine out of the box tonight brand new we calibrated it with the water they sent read 0 new tank today it read 1.011 so more salt tomorrow.
     
    shoebox, Feb 17, 2011
    shoebox, Feb 17, 2011
    #4