Hanna phosphate checker error of 1nu

brubakron · 04/10/2013, 08:04 PM

The last two days after the checker gets to zero it gives the error code of 1nu. I looked at manual and it states "the sample and the zero cuvette are inverted". What does this mean? I am not doing anything different than before that I can think of. Thanks for the input.

DHyslop · 04/11/2013, 02:55 PM

You can basically read it as zero. The actual code is "INV" and not "1nu." It means that the calibration sample looked darker than the test sample.

04/10/2013, 08:04 PM	#1
brubakron Registered Member Join Date: Jun 2012 Posts: 178	Hanna phosphate checker error of 1nu The last two days after the checker gets to zero it gives the error code of 1nu. I looked at manual and it states "the sample and the zero cuvette are inverted". What does this mean? I am not doing anything different than before that I can think of. Thanks for the input.

04/11/2013, 02:55 PM	#2
DHyslop Registered Member Join Date: Sep 2005 Location: RI Posts: 1,085	You can basically read it as zero. The actual code is "INV" and not "1nu." It means that the calibration sample looked darker than the test sample.