Turbidity Meters

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Field/Laboratory/ Industrial

Instruments, Controllers & Sensors




Turbidity is a cloudiness or haziness in water (or other liquid) caused by individual particles that are too small to be seen without magnification, thus being much like smoke in air. The size of particles suspended in the liquid as solid matter can vary greatly. Some of this suspended material will be heavy and large enough to settle rapidly to the bottom of a container if a liquid sample is left to stand (the settleable solids), very small particles will settle only very slowly or not at all if the sample is regularly agitated or the particles are colloidal. These small solid particles cause the liquid to appear turbid.

For more information on Turbidity Measurement, please visit our technical area

Turbidity Meters

Turbidity can be measured in the laboratory using a bench turbidimeter, in outdoor and field applications a portable turbidimeter would be used and for plant and process applications a continuous online controller would be used. Turbidity meters use an instrument called a nephelometer with the detector setup to the side of the light beam. More light reaches the detector if there are many small particles reflecting the source beam than if there are few. The units of turbidity from a calibrated nephelometer are called Nephelometric Turbidity Units (NTU).

What products do R.M.S Ltd offer for Turbidity Measurement?

Outdoor & Field Applications:

The TN100 Portable Turbidity meter is a microprocessor-based IP67 waterproof meter that it is easy-to-use, robustly built and is ideal for use in field applications where the user needs very accurate and reproducible Turbidity readings. Using an Infrared light source, it delivers laboratory accuracy with a resolution of 0.01 NTU across an extended range of up to 20 NTU (Nephelometric Turbidity Units).

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Laboratory Applications:

The R.M.S TB and TBIR 1000 series Bench turbidity meters are designed to exceed the expectations of today's scientists who require accurate resolution when working with Turbidity related applications in the Laboratory. Using White Light (Tungsten) or InfraRed Light source, these meters provide accurate Turbidity readings with a resolution of 0.01 NTU across an extended range of up to 100 NTU (Nephelometric Turbidity Units).

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Plant & Process Applications:

Specifically designed to meet regulations of the EPA and ISO 7027, the MicroTol range of Turbidimeters include fast and easy calibration, verification in seconds, low maintenance, Turbidity readings : 0-1000 NTU's (Nephelometric Turbidity Units), bubble rejection system, optional automatic continuous ultrasonic optical cleaning system, and a data acquisition software system that allows logging and data storage for multiple turbidity meters. The fail safe design MicroTol Turbidity meter ensures your instrument is always reading accurately.

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