SIGRIST optical measuring devices

SIGRIST is a developer of optical measuring devices that monitor the quality of process variables in numerous industries. The devices feature a true, non-contact, free-fall measuring system which ensures that maintenance is kept to a minimum.

The company’s range of photometers — which measure turbidity, dissolved substances, colour, oil or particulates — are used in water treatment, the food industry, industrial processes, environmental protection and the monitoring of air quality in roads and rail tunnels. The ProDetec range of photometers includes oil trace monitors, single- and multiparameter turbidity meters, and colour- and phase-monitoring instruments.

The SIGRIST OilGuard measures mineral oils in water. Based on the fluorescence principle, the device uses a free-fall measuring system that eliminates contact between the sample and the flow cell. Various types of oil can be detected by the product’s calibration curves. The equipment is suitable for use in the chemical and pharmaceutical industry, crude oil production, machine and metal industry, petrochemical and refinery industry, power plants, the ship industry and wastewater treatment.

SIGRIST turbidity meters measure turbidity and other parameters in water and liquids, including DOC levels, colour and oil concentration. The meters detect any impurities or flaws in the treatment process so they can be rectified. Specifically, the SIGRIST AquaScat HT Online Turbidity meter measures the turbidity of potable water according to IEC 27027 in a free-falling water stream. The device features a contactless design which eliminates foiling and minimises servicing. It is suitable for monitoring turbidity in the food and brewing industries, chemical and pharmaceutical industry, crude oil production, dairy industry, drinking water treatment, machine and metal industry, petrochemical and refinery industry, power plants, pulp and paper industry and wastewater treatment.