Hi,
I am currently using an Electrical Low Pressure Impactor (ELPI+) manufactured by Dekati. While using it to measure the number of particles, sometime, I encounter negative value for number of particles on a stage. This problem is not specific to any stage, but is encountered in all the stages.
Could you let me know what is the best way to interpret this negative value. Would it make sense to say that "the negative value is due to the particle flux exceeding maximum particle number measurement in a particular stage"? If not, what is the best way to interpret this negative values?
Thank you in advance.
Kind Regards,
Shreyas