|
|
|
|
|
#1
04-29-2011, 04:46 PM
|
|||||
|
|||||
 I meant BESIDES the price but yeah.  I'm curious because before these checkers came out, I did use a lab grade model of refractometer for phosphate from Hanna, but it was a much different looking unit than the one pictured. The lab grade unit still had a precision of 0.01 but with an accuracy of plus/minus 0.04, which IIRC, is the same for the handhelds. So the nice thing about the handhelds is that they have theoretically the same functionality to the same degree but at a much smaller price. But I'm still curious about this white model refractometer as it is not the same as what I had before. I was wondering if it might be a multitester in that it's capable of "refractometerifying" different stuff. I'm kind of guessing not, but I'm still going to ask the question nonetheless. 
__________________
-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee! 
|
|
#2
04-29-2011, 08:46 PM
|
||||
|
||||
|
As for the checker, yes they are similar to the unit that you have or had before and yes the price is much better. Ultimately that is what has made them so popular now.
The digital refract is specifically for salinity and it does not check any other parameters in the water such as pH, alk etc. I use one of these for checking the salinity of our corals bed systems (we have 2 seperate systems, one for sps one for lps and softies) and for checking our fresh batches of sw as we mix up the Royal Nature salt, 50g at a time. This tool makes checking the salinity much easier and faster and its definately more accurate. The directions say that you should clean the lens with RO/DI water after each use and we do certainly recomend this. Someone forgot to clean it once here and i went check the salinity and the Hanna meter told me the tank was 1.035. Obviously i knew this was incorrect so I cleaned the lens off, tested again and it was 1.025 Technically you are supposed to do this with all refracts, but mine usually just got a quick wipe off on a towel..... but that would also probably expain when my refracts need replacing every few years as they turn into a ball of oxidized aluminium
|
Hybrid Mode
