Pi's MutoLux® Tech: The New Standard for Accurate, Zero-Free Turbidity Measurements

The first big innovation step in turbidity in 14 years; the patented MutoLux® technology from Pi. Turbidity is difficult to measure as there is no perfect zero. Even pure water has a turbidity of 0.018NTU.
The MutoLux® from Pi solves this by rapidly changing the intensity of the light source for each measurement. This compensates for any drift and removes the need for a ‘zero’. Thus, providing robust, reliable, calibration-free turbidity measurements.

FAQs
How can we measure turbidity?
Turbidity is a measure of the cloudiness of water. How we measure turbidity is defined in international standard ISO 7027 and several US EPA standards. It is a measure of the amount of light that is scattered at 90 degrees. The more light that is scattered the higher the turbidity.

How do we calibrate TurbSense®?
There are three ways to calibrate almost any sensor and TurbSense® is no exception.

The first is to use another device, such as a handheld portable turbidity meter to determine the turbidity of the sample that the TurbSense® is monitoring.

The second is to put the TurbSense® into a sample with a known turbidity.

The third is to use a solid secondary calibration standard available from Pi, which fits over the end of the sensor.

Normally you would need to also put the other online turbidity sensor into a ‘zero’ to give the sensor two points to draw a calibration but the TurbSense® uses some fundamental laws of optics to make that zero unnecessary (patented).

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