WTZN 7100 Water quality online turbidity analyzer adopts 90° light scattering method,Tungsten lamp with high stability as a light source,Through the lens collimation is parallel light,Go straight down into the turbidity divider,Through sensors immersed in water,Detect the scattered light of 90° after the beam passes through the suspension,The monitoring and analysis of turbidity is realized by linear fitting of light intensity and turbidity value of water sample.