Pyxis Lab ST-500W Inline PTSA Sensor for Industry Standard Tee Assemblies

Overview

The ST-500W is a stainless steel inline PTSA Pyxis smart sensor. It is uniquely designed to be directly inserted into the WALCHEM® and alternative fluorometer tee assemblies. The ST-500W is designed for the WALCHEM® tee system. Most fluorometers have similar dimensions to this system. This allows drop-in installation into both designs of inline tee assemblies without the need for plumbing modifications. The ST-500W is identical in internal design and function to the ST-500 Series inline PTSA sensor platform. This offers the industry a proprietary design for the direct measurement of PTSA utilizing LED UV light sources. As well as being specifically designed for use in industrial cooling water and process water treatment applications. The ST-500W offers the Pyxis proprietary algorithms to determine the concentrations of PTSA while measuring sample turbidity and color in highly contaminated waters. The ST-500W offers a combination of 4-20mA as well as RS-485 Modbus output signals in 8-Pin cable format. As well as being Bluetooth Enabled for wireless cleanliness diagnostics and calibration. When used with MA-CR or PowerPACK Series Bluetooth Adapters and the uPyxis APP for Mobile or Desktop devices. The ST-500W comes equipped with 1.5m (4.9ft) bulk-head cable with quick adapter as well as 1.5m (4.9ft) flying lead cable with quick adapter, enabling rapid wiring to any microprocessor controller, PLC or DCS system.

Specifications

Documentation

Specifications reproduced from the manufacturer's published product information (pyxis-lab.com), retrieved 18 August 2026. Pyxis Lab is a trademark of its owner. Confirm all specifications with ForeverPure before purchase.