Turbidity Analyzer-

Turbidity is an optical property of water based on the amount of light scattered and absorped by collodial and suspended particles. The turbidity value measured in FNU, FTU, NTU etc. is the quantitative statement of this qualitative phenomenon.
Nephelometry means that the light source and the photodetector are set at a 90-degree angle from each other. This is considered the angle most sensitive to light scatter regardless of particle size.



Working -



The device measures scatted light at 90° which is according to ISO 7027 / DIN EN 27027 to be used for turbidity values below 40 NTU.The NIR light source and receiver are positioned in a 90° angle to each other. The light transmitted from the source is directed in equal strength to the reference detector and into the medium. Light is scattered from the particles and the portion which is scattered at a 90° angle is received by the detector. The meter now compares the light from the reference detector and scattered light receiver and calculates the turbidity value.