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- Sep 30, 2019
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Good to know. How long would you recommend to mix for before testing the salinity?If it is an ATC (automatic temperature compensation) refractometer, temp should not matter, but room temp to tank temp would be best. I would not want it extra hot or cold.
I have never understood the manufacturer claim that calibration needs to be done at a specific temperature. The ATC is purely mechanical and will compensate for the calibration just the same as for a measurement.
Being as close as possible to tank temp cannot hurt, however, and relieves one of relying on the ATC to be accurate.