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02/11/2012, 11:07 AM | #1 |
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Hanna Nitrate + Phosphate Meter
Just ordered these plus reagents for the Phosphate meter, anyone have experience with these, the local lfs said they use the phosphate meter and its very reliable.
Ordered Neptune Apex Controller, forgot to add the PM2 box, salinity probe, upgraded the ph probe and orp probe. |
02/11/2012, 11:26 AM | #2 |
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Which Hanna Phosphate meter?
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Randy Holmes-Farley Current Tank Info: 120 mixed reef |
02/11/2012, 11:57 AM | #3 |
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Phosphate Meter
http://www.drsfostersmith.com/produc...1&pcatid=23791 Nitrate Meter http://www.drsfostersmith.com/produc...2&pcatid=23792 |
02/11/2012, 12:55 PM | #4 |
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just checked the website, the phosphate meter is on backorder now till 3/12. I called them to check if my order was filled they said yes. and I should have it couple days.
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02/11/2012, 01:02 PM | #5 |
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I use the Hanna Checker for phos and love it. Easy to use
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02/11/2012, 01:38 PM | #6 |
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Bear in mind that the one you selected is not their lowest range reading unit, and it has uncertainty of +/- 0.04 ppm. So if the real value is 0.04 ppm, you can get readings anywhere from 0.00 to 0.08 ppm and it will be within its accuracy specifications.
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Randy Holmes-Farley Current Tank Info: 120 mixed reef |
02/11/2012, 03:16 PM | #7 | |
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Quote:
http://www.saltcells.com/phosphorus-...gl-p-1129.html |
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02/11/2012, 04:13 PM | #8 |
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Well, don't let the name fool you. Ultra low is a marketing term. The uncertainly of the higher one makes it not very useful for most reefers, IMO.
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Randy Holmes-Farley Current Tank Info: 120 mixed reef |
02/11/2012, 04:49 PM | #9 |
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02/11/2012, 06:16 PM | #10 |
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I remember reading that the nitrate photometer (HI 93728) is not suitable for saltwater use, if that's your intention. It may be worth checking...
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02/11/2012, 07:03 PM | #11 |
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I don't currently use either of them, but if I did, I'd elect the 736:
http://www.hannainst.com/usa/prods2....dCode=HI%20736 I'm not big on measuring such things as opposed to watching the tank itself, but I've also initiated a discussion with Hanna to try to understand if the high levels of silicate that I dose would make low phosphorus levels potentially inaccurate since silicate is a known interferent with the method the meter uses for phosphate.
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Randy Holmes-Farley Current Tank Info: 120 mixed reef |
02/11/2012, 09:04 PM | #12 |
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02/11/2012, 09:19 PM | #13 |
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just called them and canceled the whole order, they were excellent about it, you guys saved me 500...
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02/11/2012, 10:17 PM | #14 |
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with the money saved I ended up buying the PM2 and an extra energy bar from neptune plus conductivity probe, and calibration solutions.
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