METTLER TOLEDO turbidity meters are designed for in-line turbidity measurement in industrial manufacturing processes. These turbidity analyzers provide continuous turbidity measurement to help achieve process control in crystallization, phase separation, biomass growth (cell density), beer filtration and other critical applications. Select turbidity meters can also be used for color measurement.
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METTLER TOLEDO offers several types of in-line turbidity sensors that are optimized for specific measurement ranges and different applications. Typical industries include breweries, chemical processing, pharmaceuticals, sugar refining, food and beverage, and wastewater Read more
Turbidity measurement in pharma crystallization processes plays an important role. Determining the exact moment of saturation is central to achieving consistent product quality, and better crystal manufacturing operation and monitoring. Read more
Visual parameters such as beer brightness and color are evaluated by consumers even before they start to drink. Therefore, in modern breweries, more and more parameters are being measured directly in the process to better ensure final product quality. Read more
The METTLER TOLEDO Process Analytics Catalog provides a comprehensive overview of solutions for analytical measurements in liquid process applications, pure water monitoring and gas-phase measurement. Read more
To maintain productivity, your equipment must perform reliably for each measurement. Watch your budget and achieve a high return on your equipment investment over its lifetime. Read more
We support and service your measurement equipment through its entire life-cycle, from installation to preventive maintenance and calibration to equipment repair.
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Turbidity is an optical characteristic that refers to the degree of clarity of a liquid. Turbidity levels can be measured with a turbidity meter. Turbidity in water is caused by individual suspended particles or colloidal matter that scatters or obstructs light transmittance: the higher the concentration of suspended particles/colloidal matter, the higher the turbidity. Such particles are normally too small to be detected by the human eye; therefore, turbidity measurement has to be done with a turbidity meter or turbidity analyzer. The best way to control processes that require close turbidity monitoring is with an in-line turbidity meter. An in-line turbidity meter provides a continuous measurement of turbidity that can be used for process control purposes. Everyday examples of turbid liquids are:
A turbidity meter, also called a turbidity analyzer, is a system for measuring suspended particle concentration in a process. A turbidity meter generally consists of 3 major parts: a turbidity sensor, a turbidity transmitter and a process connection.
Turbidity measurement, as captured by a turbidity analyzer, determines the degree that suspended particles in a liquid medium, scatter light. The scattering is influenced by:
As a consequence of the three points above, it is only possible for turbidity to be used as a characteristic property of a sample if the measurement method is standardized. For example, in many brewery applications the liquid to be measured is yellowish in color and contains yeast particles. Therefore, to check for filter breakthrough, the amount of forward and side-scattered light is measured at an angle of 25° and 90° compared to the light source, for quality assurance purposes. Red (650 nm) and blue (460 nm) light sources are also specified in guidelines for turbidity and color monitoring.
