ST525SS Inline Boiler Probe

The Pyxis ST-525SS probe uses high temperature-tolerant and humidity-resistant optical filters. It can be operated under a wide range of ambient conditions without the need of humidity and temperature regulation. With this design the performance of the ST-525SS probe can be stable and consistent for an extended period time. The Pyxis ST-525SS probe measures the concentration of fluorescein in water, commonly used as a fluorescent tracer in water treatment applications. The 304-stainless steel body of the ST-525SS probe makes it ideally suited for applications of monitoring boiler feed-water or boiler blowdown after being properly cooled to near the ambient temperature. The 4-20mA current output from the probe can be connected to any controller that accepts an isolated or non-isolated 4-20mA input.

The ST-525SS probe is a smart device. In addition to measuring fluorescence, the ST-525SS 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 experienced in real-world applications.

The ST-525SS probe is easy to calibrate using the uPyxis® Mobile or Desktop App. Any standard containing Fluorescein in the range of 10 to 60 ppb can be used for the calibration of the ST-525SSṪhe standard may also be the water sample itself if the Fluorescein concentration of the sample is measured and validated by a calibrated offline fluorometer. This allows the ST-525SS probe to be calibrated online without being removed from the system. The uPyxis® App also provides diagnostic information about the ST-525SS probe such as: probe fouling, color or turbidity over range, failure modes, etc. This diagnostic information can also be available via Modbus RTU.

ST-500SS is constructed of 304SS and is a high pressure option PTSA Probe. It is rated up to 145 psi at 104 F.