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REACH 2002 trade fair preview

In line with new emphases in measurement, SIGRIST is presenting a two-part program with environmental instrumentation with respect to water quality and dust concentration as well as process measurement technology for industrial facilities with turbidity and color measurement.

The most important parameters for monitoring the quality of drinking water and surface water are turbidity, the spectral absorption coefficient, and oil content. SIGRIST is presenting its current low-maintenance solutions for reliably measuring these parameters. And for the first time, SIGRIST unveils the OPM32 particle counter. This instrument enhances turbidity measurement for, above all, ultra-low turbidities (e.g. after membrane filters). This portable measuring instrument is intended for use in the laboratory as well as for on-line monitoring. Up to 32 size categories between 1 µm and 150 µm are specified in the particle count. Sampling can be done directly from pressure lines or from sampling bottles. Available accessories include evaluation software and an accumulator battery for mobile operation.

The new VisGuard dust monitor is designed to measure dust concentration in production areas, warehouses and loading bays as well as the visibility in road tunnels. The two variants in-situ and extractive make it possible to measure locally or by means of extractive sampling over several hundred meters. An integrated purge air concept effectively prevents soiling of the measuring optics even in situations where there is a high concentration of dust. The measurement scope ranges from very low µg/m3 to over 100 mg/m3.

In the processing area, the DualScat in-line turbidity measuring instrument has been successfully employed in the food industry for three years and is now available as an Ex-protected version with a variety of options for use in the chemical, petrochemical and pharmaceutical industries. Innovations include an extended temperature and pressure range, various sealing materials, and an optional sapphire window. With a measuring scope of 0 to 2000 NTU, this universal instrument can be used in a variety of applications, from measuring ultra-low turbidities in filtration checks up to solid matter content in the g/l range. The dual-angle method enables subtly differentiated statements about particle properties, thus providing you with additional information for optimizing processes.

Products: VisGuard In-situ | VisGuard Extractive | DualScat Ex

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