I've got two refractometers, a Milwaukee and a Chinese no name. The chinese one has lost its "contrast" when looking into it to measure salinity. The Milwaukee has a dark blue half and basically milky clear half, where the two halves meet is of course how you you know what's what.
The chinese is basically all white, although at one time it was a lighter blue and was easily readable. I guess I want to know why this has happened, it's only 4-5 months old ??
The Milwaukee had instructions which stated not to immerse the 'fracto in water to rinse.....ooooops, I have been doing that with the chinese meter. Could this be the reason for its loss of contrast ?
If so, what has happened to make the contrast disappear (water has leaked into it ??) and why isn't rinsing off in water a more well known no-no ? (nobody told me)
I guess air drying or a paper towel would be the best way to go, I usually check all my params on three tanks at the same time so I was "dipping" in RO/DI to rinse thinking that was the best approach....guess not.
Thanks for your time.
The chinese is basically all white, although at one time it was a lighter blue and was easily readable. I guess I want to know why this has happened, it's only 4-5 months old ??
The Milwaukee had instructions which stated not to immerse the 'fracto in water to rinse.....ooooops, I have been doing that with the chinese meter. Could this be the reason for its loss of contrast ?
If so, what has happened to make the contrast disappear (water has leaked into it ??) and why isn't rinsing off in water a more well known no-no ? (nobody told me)
I guess air drying or a paper towel would be the best way to go, I usually check all my params on three tanks at the same time so I was "dipping" in RO/DI to rinse thinking that was the best approach....guess not.
Thanks for your time.
