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dirk_brijs
05/23/2014, 05:46 AM
I see with Hanah they are offering 3 different Phosphate related checkers?
1 "HI736 Checker HC - Phosphorous, ULR"
2 "HI717 Checker HC - Phosphate, HR"
3 "HI713 Checker HC - Phosphate, LR"
can someone explain me what the differences are between those 3 and which of the 3 best to use
I currently use the HI713 but is this the correct one or the other 2 completely different things and should they be checked too?

Chrisjbarry
05/23/2014, 05:48 AM
Depending on your reading with the 713 you may need a 736. It can read lower levels then the 713 can. I like the 736 once my 713 reads less than .03

dirk_brijs
05/23/2014, 05:59 AM
so better to start right away with the 736 then?
what is the phosphorous for?

tmz
05/23/2014, 09:07 AM
The 713 or the 736 are suitable for the ranges you'll want to test. The 736 is claiimed to have a bit better accuracy range but frequent problems with the reagents have been reported.

Randy Holmes-Farley
05/23/2014, 10:29 AM
Forget the name phosphorus as it detects phosphate just like the other two. :)

hkgar
05/23/2014, 12:42 PM
but you need to convert the reading from the 736 to get to the number we are used to using. Multiply by .0030661 or as some like to say multiply by 3.0661 and divide be 1000.

thegrun
05/23/2014, 02:23 PM
but you need to convert the reading from the 736 to get to the number we are used to using. Multiply by .0030661 or as some like to say multiply by 3.0661 and divide be 1000.

Or divide by 100 and then divide by 10...

TylerHaworth
05/23/2014, 03:45 PM
Triple the number on the 736 and then move the decimal three places to the left =D