Hanna Checker Phosphorus trouble

[Silence]

Hi,
I got a strange "code" on my phosphorus ULR. Does anyone know what it means?
Thanks

 

[Crabs McJones]

Inverted Cuvettes: The sample and the zero cuvette are inverted. Meaning its saying your 0, when you first put a water sample in to 0 it out, and the end result are backwards. The calibration sample was read darker than the test sample. Could be that phosphate levels are to low to read.

 

[Silence]

Inverted Cuvettes: The sample and the zero cuvette are inverted. Meaning its saying your 0, when you first put a water sample in to 0 it out, and the end result are backwards. The calibration sample was read darker than the test sample. Could be that phosphate levels are to low to read.

Could my phosphate levels be so low? Yesterday at this time it was at .06, so I put some "rowaphos" soon after, and I checked it 24 hours later, and I got this reading 2X

 

[Crabs McJones]

Could my phosphate levels be so low? Yesterday at this time it was at .06, so I put some "rowaphos" soon after, and I checked it 24 hours later, and I got this reading 2X

It's possible, i'm not familiar with rowaphos. I would just double check that the cuvette is clean and that there is nothing obstructing the led inside the checker. Another thing is how old is the battery?

 

[Silence]

It's possible, i'm not familiar with rowaphos. I would just double check that the cuvette is clean and that there is nothing obstructing the led inside the checker. Another thing is how old is the battery?

Gracias Señor Mcjones, I will check all those things