Water Testing: The Laser Turbidimeter Advantage

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Water Testing: The Laser Turbidimeter Advantage

Laser turbidimeters, such as the Lovibond PTV 6000, possess highly improved optical qualities to yield a very stable process measurement system. This enhanced stability provides additional information that can be deciphered from the laser turbidity measurement itself and used as a separate parameter to further improve the limit of detection to breakthroughs in filtration systems.

The PTV 6000 has a 660 nm laser diode incorporated into its optical system. This serves as the incident light source. This laser output is a highly collimated and concentrated beam of energy. The concentrated energy is in a much smaller volume when compared to a typical light source for turbidity measurement.

A conventional turbidimeter, without the use of a high-density beam, is capable of detecting particles of approximately 1.0-μm or larger. A laser turbidimeter is capable detecting particles as small as 0.01-μm. This enables the laser turbidimeter to detect very small breaches in a filter such as a pinhole. 

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