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Old 04-10-2006, 05:03 PM   #1
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Refractometers....

Hello All,
I ordered this refracto:
http://www.drsfostersmith.com/Produc...&N=2004+113074

When I got it, it was broken and am sending it back. Has anyone used this specific model, or should I up the money and get a better one...Keep in mind I just plan on exchanging this one for maybe a better one if need be from the same place....

Thanks
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Old 04-10-2006, 07:30 PM   #2
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The one I have looks very similar and works very well. I would say that it was just an unfortunate event that you received it broken. They work pretty much the same way, temperature compensation, light refraction trough the water, etc... Perhaps if it was really cheap, like 15$ brand new, then I would question the quality. Of course, you can always purchase the "really" good one, but they sell for well over 200-300$, and even much more.

HTH

Cheers,

8)
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Old 04-10-2006, 09:02 PM   #3
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I agree with Serge. It's an auto temp correction model which is about all you need. They all work about the same. If you're a repeat cusomter the Drs. will cross-ship on occassion. They did that for me for a $900 light fixture (twice).
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Old 04-11-2006, 09:51 AM   #4
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Cool, I think I will spring for the $100 one as opposed to the $45 one. Thanks!
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Old 04-11-2006, 11:46 AM   #5
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The one linked looks fine to me. It looks like it has a spot for a calibration screw. You will want one that can be calibrated to pure water at 1.0000 salnity. Once the unit is calibrated you wont need to calibrate it very freqently.
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Old 04-11-2006, 11:56 AM   #6
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Thanks for the feedback, but the one I got, had a plastic "day arm" (sorry I can't remember the name (the part that flips up), and seemed kinda cheap...I imagine they all are generally plastic connectors....
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Old 04-11-2006, 12:21 PM   #7
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The clear flap that covers the water on the lens area is plastic on my model. The unit should be well constructed with a metal handle that has some decent weight to it. The biggest cost of the unit is the prizm thats inside. My guess between the two units is that they use the same quality prizm and the upgrade one is just heavier construction.
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Old 04-11-2006, 12:32 PM   #8
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Here is the other one...
http://www.drsfostersmith.com/Produc...&N=2004+113761
It just looks like it gaves a more precise reading....?
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Old 04-11-2006, 01:35 PM   #9
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I have the one in the first link and have found it to work just fine.
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