H2trOnics - Model ST-500 Series -Inline Fluorometer

Now the ST-500 series expand the target of measurement to a broad range of analytes, including fluorescein and naphthenic disulfonic acid (NDSA) to bring your success of traced cooling programs to boiler and other applications.

Thanks to the state-of-the-art fluorescence technology adopted in our design, the ST-500 series are very forgiven to real world sample water conditions. With its flow-through optical design and multiple wavelength color/turbidity compensation algorithm, the ST-500 probe keeps high performance for water samples with up to 100 NTU turbidity and/or 5ppm iron. The comparison in the experiment shown below clearly demonstrates the superior performance of the Pyxis ST-500 probe in the presence of iron color.

• PTSA Range: 0 to 300 ppb (uncertainty ±1 ppb or 1%, 3 sigma)
• Detector: GaP photodiode
• Power Supply: 22 – 26 VDC
• Power consumption: 65 mA at 24 V
• Signal Output: 4-20 mA Modbus RTU
• Sample Temperature: 40 – 104 °F (4 – 40 °C)
• Operation Temperature: 40 – 120 °F (4 – 49 °C)
• Storage Temperature: 20 – 140 °F (-7 – 60 °C)
• Sample Pressure: Up to 100 PSI
• Cable Length: 5 feet, terminated with IP67 connectors
• Dimension: Length 6.8 inch (172.7 mm), body diameter 1.44 inch (36.6 mm)
• Weight: 0.37 pounds (170 grams) without tee