TriOS OPUS spectral nitrate/nitrite sensor

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TriOS develops and produces optical sensors and associated equipment for water quality analysis. The reagent-free sensors are used in environmental monitoring and process control in a broad range of applications such as surface/drinking water, marine research, industrial and wastewater treatment.

The TriOS family covers a range of parameters with online photometers, fluorometers, radiometers and other sensors. Typical applications include the measurement of nitrogen (nitrate and nitrite), BOD equivalent (BODeq), CODeq, SAC254, radiance/irradiance, colour, concentration of oil in water and algae such as cyanobacteria (blue-green algae).

Replacing expensive and time-consuming lab tests, the OPUS is a new generation of optical sensor for online analysis of nitrogen (nitrate/nitrite) and carbon compounds (CODeq and BODeq). Manual maintenance is reduced by the use of nanocoated (hydrophobic) lenses and built-in air cleaning. The sensor’s reagent-free spectral measurement allows for field mounting of the OPUS to deliver real-time, continuous and reliable information for automated control.

All products are supported with a full range of mounting alternatives such as process mount (floats and flowcells), inline and remote operating solar-powered buoys. The TriOS G2 interface allows sensor configuration either through one of the TriOS centralised controllers or remotely via a web browser. Communication outputs include analog (4–20 mA) and digital Modbus (Ethernet or Wi-Fi).

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