Optical turbidity measurement
April 2014
Sensors & Transducers
To control and measure the quality of water, ASSTech now offers the Jumo ecoLine NTU turbidity sensor. Particularly suited for water with low to medium turbidity, it finds application in drinking water monitoring, municipal and industrial wastewater treatment, final wastewater inspection, monitoring of bodies of water and fish farming operations.
The measuring principle is based on infrared light measurement according to the 90° scattered light method. The turbidity measurement wavelength is 880 nm, with a measuring range of 0 to 4000 NTU. The sensor operates at temperatures from 0 to
50°C. The housing is made of PVC and is characterised by a sleek and robust design. Calibration data and history are stored in the electronics, allowing rapid deployment without the need for constant recalibration. Both immersion and flow fittings are available as accessories.
The Jumo ecoline NTU is connected via a RS-485 interface to the Jumo Aquis 500 RS indicator/controller to function as a complete on-site measuring unit. The Aquis also has two analogue outputs and two switching outputs. As a result, the device is ideally suited for connection to superior systems. Plain text displays make operation easy.
For more information contact Anastas Schnippenkotter, ASSTech Process Electronics & Instrumentation, +27 (0)11 708 9200, [email protected], www.asstech.co.za
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