Pyxis ST-525SS Inline Stainless Steel High Pressure Fluorescein Sensor
Stainless steel high-pressure inline fluorescein sensor (0-60ppb). 4-20mA + RS-485, 7-pin.
Pyxis ST-525SS Inline Stainless Steel High Pressure Fluorescein Sensor
The Pyxis ST-525SS is an inline sensor that measures dye-tagged (fluorescein) treatment chemical dosing, supporting treatment chemical feed. It reports concentration across a 0-60ppb range and communicates via 4-20mA analog output and RS-485 Modbus through a 7-pin connector. Its stainless steel body is built for high-pressure process line installations.
Description
The Pyxis ST-525SS is an inline fluorescein tracer sensor built for tracking dye-tagged treatment chemical dosing in demanding, high-pressure process lines. It shares the same 0-60ppb measurement range as the standard ST-525 but adds a stainless steel body so it can be installed where higher line pressures rule out non-metallic sensor housings.
Concentration readings are reported through a 4-20mA analog signal and RS-485 Modbus, both routed through a single 7-pin connector, allowing straightforward wiring into existing control and monitoring infrastructure.
It is intended for treatment programs and facilities running dye-tagged chemical feed on high-pressure process water systems where a rugged, pressure-rated sensor body is required.
Why Use This
Continuous tracer monitoring
Measures dye-tagged (fluorescein) treatment chemical dosing in real time across a 0-60ppb range, giving operators direct visibility into treatment chemical performance.
Easy control system integration
Dual 4-20mA analog and RS-485 Modbus outputs through a 7-pin connector let the sensor feed data straight into existing SCADA or controller setups.
Built for high-pressure lines
The stainless steel housing withstands high-pressure process water service where standard sensor bodies would not be suitable.
Applications
- High-pressure process water lines — stainless steel body rated for demanding pressure conditions
- Treatment chemical feed verification — tracks dye-tagged chemical dosing in real time
- Boiler and process water treatment programs — continuous inline tracer monitoring
- Control system integration — 4-20mA and RS-485 Modbus outputs for SCADA/PLC feed control
FAQ
What makes the ST-525SS different from the standard ST-525?
The ST-525SS uses a stainless steel body, allowing it to be installed in high-pressure process line applications where the standard sensor housing would not be suitable.
What concentration range does it cover?
It measures dye-tagged fluorescein tracer across a 0-60ppb range.
How does it output data to my system?
Readings are available as a 4-20mA analog signal and via RS-485 Modbus, both through a 7-pin connector.
Can it be mounted directly into a process line?
Yes, it is an inline sensor designed for direct installation into the process water line for continuous monitoring.
Resources
Related Products
Inline fluorometer and turbidimeter measuring PTSA (0–500ppb) and turbidity (0–200NTU) with colour and turbidity compensation. UPVC body suited to pressures below 100psi.
Stainless steel monochloramine + pH sensor, 0-5ppm, sensor only with no flow reservoir. Dual 4-20mA + RS-485, 8-pin connector.
Compact dual-channel controller for pH and ORP monitoring with direct pulse output to dosing pumps.
PVDF injection quill with integral non-return valve for safe chemical injection into pressurised pipelines.
Other Models in This Line
Latest Resources
Need help with selection or sizing?
Our engineers are ready to evaluate your requirements and recommend the right solution.