What is the difference between a Laser Turbidimeter and a Conventional Turbidimeter?
The difference between a laser turbidimeter and a conventional turbidimeter is in both the light source used and the detection system. Conventional turbidimeters are often referred to as a white-light turbidimeter and they typically conform to the United States Environmental Protection Agency (USEPA) Method 180.1, which is the original method for monitoring turbidity in water. Laser turbidimeters, have a laser-based light source, which is basically a monochromatic light source with a controlled intensity. Second, laser turbidimeters have a higher sensitivity detection system, which is able to detect lower levels of scattered light than conventional turbidimeters. One laser turbidimeter technology, which is represented by the Hach FT660 sc family of instrumentation is also EPA approved. The approval method is known as the Hach Method 10133 or the FilterTrak Method. This FAQ supplied by: Hach Company.
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