Description
The SP-395N handheld NDSA fluorometer is a unique one of a kind sensor. This device utilizes the UV fluorescence to detect NDSA content in water. The results are instantaneous and are highly reliable. It is important to note that this technology is not wet chemistry. Testing for NDSA content and variations may be observed depending on the quality of the water sample. In certain waters the background of other organic matter may cause a false positive reading. In consistent makeup water quality with little organic loading and systems with no known organic contamination. This technology is very accurate in comparison to wet chemistry methods.
Furthermore, it is incumbent for the user to identify the correlation to exact wet chemistry values and potential background interference should be accounted for by checking untreated makeup for UV fluorescence signal and removing that from the final value measured.
In addition, the SP-395N will not work in waters containing Nitrite treatment as Nitrite absorbs UV light and will result in a false low value. With these application limitations clearly understood, the SP-395N is commonly used for rapid NDSA validation, dramatically reducing service time enabling water treaters to adjust their programs accordingly. It is important to note however, that there are some applications (surface makeup water systems or high organic loading/contaminated systems) where this technology is not ideal due to a high degree of interference. The user needs to understand the dynamics of their system and evaluate its use accordingly.
Features
- No Sample Cuvette Needed
- Large Color Graphic Screen Visible in Direct Sunlight
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