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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
Inline Tracer Sensor
Chemical Dosing Tracking

Pyxis ST-525SS Inline Stainless Steel High Pressure Fluorescein Sensor

Model:
ST-525SS
Brand:
Pyxis

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.

Real-time tracer monitoring — 4-20mA analog and RS-485 Modbus outputs feed data directly into control systems
High-pressure rated — stainless steel body allows installation in demanding, high-pressure process lines
Real-time tracer monitoring — 4-20mA analog and RS-485 Modbus outputs feed data directly into control systems

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.

Download

D25 Product Datasheet
PDF · 1.2 MB
Installation Manual
PDF · 0.8 MB

Resources

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