The ST-500 Series inline sensor platform is a proprietary design for direct measurement of PTSA (Pyrenetetrasulfonic Acid, CAS# 59572-10-0) utilizing LED UV light sources (365nm ex/ 410nm em) for use in industrial cooling water and process treatment applications.
The ST-500 Series offer Pyxis Lab® proprietary algorithms to determine the concentrations of PTSA while measuring sample turbidity and color in highly contaminated waters (ie. ≤150 NTU and 10ppm Fe) for internal compensation. The ST-500 Series offers a combination of 4–20mA as well as RS-485 Modbus output signals and is Bluetooth Enabled for wireless cleanliness diagnostics and calibration when used with the MA-WB or PowerPACK Series Bluetooth Adapters and the uPyxis® mobile and desktop app. The ST-500 Series is provided in CPVC with the standard ST-001 inline 3/4” FNPT Tee assembly, 5-foot bulk-head cable with quick adapter and 1.5ft flying lead cable with quick adapter, enabling rapid wiring to any microprocessor controller, PLC, or DCS system.
| ST-500RO Inline PTSA Sensor | |
|---|---|
| P/N | 50669 |
| PTSA Output Scale Adjusted via uPyxis® | 0–40ppb |
| PTSA Maximum Range Adjusted via uPyxis® | 0–40ppb |
| PTSA Precision/Accuracy | ±0.2ppb |
| Excitation/Emission | LED 365/410nm |
| Power Supply | 22–26VDC, Power Consumption – 1W |
| Outputs | Isolated 4–20mA Analog Outputs & Isolated RS-485 Digital Output – 7Pin |
| Installation | ST-001 Inline Tee (Provided) 3/4″ FNPT Socket & Thread |
| Weight | 170g (0.37lbs) |
| Operational Pressure | 100psi (6.9 Bar) |
| Operating Temperature | 4–49 ºC (40–120 ºF) |
| Storage Temperature | -20–60 ºC (-4–140ºF) |
| Material | CPVC |
| Rating | IP67, Fully Dust-Proof & Water-Proof |
| Regulation | CE Marked + RoHS |
| Dimensions | 6.8in (172.7mm) Length, 1.44in (36.6mm) Body Diameter |
| Cable Length | 5ft, Terminated with IP67 adapter + 1.5ft Flying Lead with IP67 Adapters |
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