need some help here

[chercm]

may i check how do you measure po4 ?

i tried hanna hi736 and man it sucks on accuracy

any one can help ?

 

[mallorieGgator]

Usually the Hanna meters work well so I'm surprised to hear yours doesn't work. How do you know it's not accurate? Have you tested it in RO/DI that you know has a 0 ppm reading? I use a test kit but I want to get a meter.

 

[chercm]

i have been getting very very inconsistent result

one moment i got 18 on the unit , the next is 2 and the last is 19

I have used the same sample of water and i have followed the instructions

 

[Denadai]

You must have to clean the cuvette very well with fresh RO water

You can have wrong results if the cuvette had any debris

Best Regards

 

[SPotter]

+1 on clean cuvette's. I use the hanna checker for ulr po4 and alk and the one thing I have found is if your cuvette isnt spottless....your results will be off. When conducting my tests, I will only handle the cuvette's with a cloth and will wipe them down before putting them in for the final reading. By doing this, I have noticed consistancy in my readings.