ST-590 Inline Fluorescent Polymer Probe
The Pyxis ST-590 inline fluorometer probe measures the concentration of Fluorescent Polymer in water. It can be simply inserted to the compression fitting port of a custom-made tee. The standard ST-001 installation tee provided with each ST-590 sensor, has two 3⁄4 inch female NPT ports and can be placed to an existing 3⁄4 inch sample water line. Pyxis Lab also offers 2” and 3” Tee formats for larger flow installations. The 4–20mA current output of the ST-590 probe can be connected to any controller that accepts an iso- lated or non-isolated 4–20mA input. The ST-590 probe is a smart device. In addition to measuring polymer fluorescence, the ST-590 probe has extra photo-electric components that monitor the color and turbidity of the sample water. This extra feature allows automatic color and turbidity compensation to eliminate interference commonly associated with real-world waters.
The Pyxis ST-590 probe has a short fluidic channel and can be easily cleaned. The fluidic and optical arrangement of the ST-590 probe is designed to overcome shortcomings associated with other fluorometers that have a distal sensor surface or a long, narrow fluidic cell. Traditional inline fluorometers are susceptible to color and turbidity interference and fouling and are difficult to properly clean.
The ST-590 measures Fluorescent Polymer in a water sample and includes the following features:
- Easy calibration with using uPyxis® Mobile or DesktopApp.
- Automatic compensation for turbidity up to 150 NTU and color created by up to 10 ppm iron or equivalent to 10 ppm humic acid.
- Diagnostic information (probe fouling, color or turbidity over range, failure modes) are available in uPyxis® App or via Modbus RTU.
- Easy to remove from the system for cleaning and calibration without the need for any tools.
