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Old 08-18-2010, 12:44 PM   #1 (permalink)
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Default Hannah Checker Phosphate PO4 Colorimeter

Just placed my order for this product today, I should have it in hand on Friday afternoon. Look for a product review by Monday.

Hanna Checker Phosphate PO4 Colorimeter - English
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Old 08-18-2010, 12:49 PM   #2 (permalink)
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Ouh, fancy!

Pretty cheap price wise for a hanna product. Looking forward to a great review.
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Old 08-19-2010, 09:10 AM   #3 (permalink)
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seen them, wondering if they really work.
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Old 08-20-2010, 10:01 AM   #4 (permalink)
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UPS shows that its on the truck here in KC and out for delivery, It ought to be sitting on my door step today when I get home...Cannot wait to test this little toy out.
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Old 08-20-2010, 10:16 AM   #5 (permalink)
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Let us all know.
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Old 08-23-2010, 09:25 AM   #6 (permalink)
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More indepth review to come but for now I will say I am not overly happy with this product.

The meter needs to be 0'd out each time you use it which is a easy process to do, you fill the water container with 10ml of the water you wish to test then perform the 0 balance test this takes about 10 sec or so.

Next you removed the water vial from the tester and add the reagent to the water and shake for 2 minutes to make sure it gets desolved...

This is the step that screws you over..........

During the 2 minutes you are shaking the reagent water the meter shuts off and then you need to start over with the 0 balance again. So really you need 2 vials from the start and you need to prepare 1 with tank water and another with reagent in it before you even 0 balance so your not spending 2 minutes shaking the vial only to have to start all over...

Also the product came with 2 vials for water, only they had these stupid white plastic inserts in the vials that are impossible to get out and I ended up breaking one of the two vials it came with trying to remove the plastic insert.

Once I finally figured out the tricks to actually run a successful test I got the results of 0.00 for my Phosphate levels so now Im wondering if I really did things correctly.

When I have some time I am going to play with this new toy a little more before making my final judgement but so far I am not impressed.
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Old 08-23-2010, 09:50 AM   #7 (permalink)
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I was a bit leary when I saw the price tag. Anything decent from hannah is upwards of $200

Well, now that you figured out that you need 2 vials the only thing left to do is to confirm your readings with some other test and /or equipment.
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Old 08-23-2010, 10:00 AM   #8 (permalink)
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Quote:
Originally Posted by Puffer View Post
I was a bit leary when I saw the price tag. Anything decent from hannah is upwards of $200

Well, now that you figured out that you need 2 vials the only thing left to do is to confirm your readings with some other test and /or equipment.
A good friend of mine has their $200+ model of this meter and I am going to bring my CHEAP meter over to his place to run some comparison tests for accuracy.

I have already gotten in touch with BRS about getting another vial since one of mine is toast...

Well see what the final results are hopefully in the next few days.
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Old 08-23-2010, 10:02 AM   #9 (permalink)
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Great, lets see if results are same or at least within acceptable margin.
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Old 04-28-2012, 11:35 AM   #10 (permalink)
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The Hanna folks are great - I'm pretty sure they probably mailed him a few extra vials for now. One of the benefits of having multiple hanna checkers is that you'll always have extra vials laying around.

I also have the PO4 checker. Gsago is right - the 2 minute shutoff time is a pain, especially with the Calcium checker (I reviewed here recently).

Here's a quick tip. If a Hanna checker requires that a color develop or a reagent that takes time to dissolve, you have two options when the checker is asking for step C2.

Option 1 - you shake as fast and as hard as you can within that 2 minute period and hope you get the cuvette into the checker in time...

Option 2 - which may be documented or not, I haven't tried it with mine (but I will!) - Put the reagent in, Shake violently for a 30 seconds, pop the cuvette into the checker and HOLD the button down. On MOST Hanna checkers, a countdown will begin and allow extra time for the reagent to finish dissolving in the cuvette, allowing for a more accurate result. Be careful though, once you see the countdown start, release the button so you don't power the thing off

Hope this helps! I found out about this little trick on Mark Callahan's (aka Mr. Saltwater Tank's) review on youtube.

-k
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