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    • Main Office
      Burkert South Africa (PTY) Ltd
      Visitors address:

      233 Albert Amon Road
      Millennium Business Park
      Meadowdale / Germiston

      Mailing address:

      P.O. Box 26260
      East Rand
      1462
      Phone +27 11 574 6000
      Fax +27 11 454 1477
      E-Mail fnyrf.mn@ohexreg.pbz
      Website http://www.buerkert.co.za/
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      Durban Branch
      32 Grays-Inn Crescent
      Westville

      Phone +27 31 266 1600
      Fax +27 31 266 1495
      E-Mail fnyrf.mn@ohexreg.pbz
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      Cape Town Branch
      Unit 26, Northgate Business Park
      Northgate Estate

      Phone +27 21 510 7137
      Fax +27 21 510 7135
      E-Mail fnyrf.mn@ohexreg.pbz
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Determining water quality

Sensor cube for SAC measurement with the Bürkert online analysis system. To determine the quantity of dissolved organic compounds in a water sample, the spectral absorption coefficient (SAC) is measured at 254 nm. In order to integrate this important parameter of water in analysis in its online analysis system Bürkert has miniaturised the measuring principle and integrated it in a sensor cube.

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The SAC sensor cube measures a mere 44 mm x 100 mm x 158 mm and can be used with a handle while the Bürkert online analysis system is running. It automatically conducts an optofluidic measurement of the water sample, including all calculations, averaging and corrections and transmits the result - the SAC value of the water - to the EDIP (efficient device integration platform), which enables intelligent networking of all electronic Bürkert devices.

The sensor consists of a lamp module with a Xenon flash lamp, a spectroscope and the electronics with integrated software. The software independently induces measuring cycles once the sensor is connected. During the measurement, the light pulse of the lamp passes through an opening at a 90° angle to a cuvette consisting of two sapphire windows. Sample water continuously flows through the cuvette. The light passes through a lens, an aperture, optical grid and a focussing lens to the 1.5 mm detector array.

A complete, fully automatic microspectrometer for water samples the size of an online analysis system sensor cube is a pioneering innovation and underscores the microfluidic and system solution expertise of Bürkert Fluid Control Systems.

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