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Old 05-13-2009, 12:46 PM   #1
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Question Hydrometer/Refractometer

Hi all. I'm reading that a refractometer is the way to go. Any suggestions on brands or are they all the same?

Thanks!
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Old 05-13-2009, 12:50 PM   #2
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I'm not sure that the brands really matter much as long as they are calibrated properly. I'm happy with the one we got from Drs for around $40. WAY better than a hydrometer IMO.
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Old 05-13-2009, 02:35 PM   #3
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Make sure you get an ATC one. I got the same one off the Dr's website (probably as HN1's).
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Old 05-13-2009, 04:32 PM   #4
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Quote:
Originally Posted by HN1 View Post
I'm not sure that the brands really matter much as long as they are calibrated properly. I'm happy with the one we got from Drs for around $40. WAY better than a hydrometer IMO.
Same here
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Old 05-13-2009, 06:15 PM   #5
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I ordered one off of ebay for about 30 bucks and it seems to be working fine. I calibrate it before I use it every time to 1.0 using purified water and I haven't had any problems.
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Old 05-13-2009, 09:50 PM   #6
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Thanks!
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Old 05-14-2009, 01:06 AM   #7
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Better to calibrate it using 53.0 mS conductivity calibration solution that Pinpoint makes for the electronic salinity meters. It should read about 1.026+. That way you're calibrating in the range that you're measuring, and not just at 1.0
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Old 05-14-2009, 01:16 AM   #8
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I got mine off marinedepot.com check there as well they tend to run sales on their brand.

As for calibrating I've always calibrated to 0 using RO/DI water. If it reads 0 then it will read 1.026 or what ever your SG is.
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Old 05-14-2009, 03:11 AM   #9
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If it reads 0 then it will read 1.026 or what ever your SG is.
Not necessarily... but if yours does, that's cool! Linearity of the things can vary from brand to brand, batch to batch. I've been pretty happy with my Sybon from Premium Aquatics.
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Old 05-14-2009, 04:27 AM   #10
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Not necessarily... but if yours does, that's cool! Linearity of the things can vary from brand to brand, batch to batch. I've been pretty happy with my Sybon from Premium Aquatics.
Happy to hear it... we also have a Sybon. You're talking like 20 miles over my head so I'm satisfied that you're satisfied. :p
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