SR-510 Inline PTSA Sensor
The Apure SR-510 is an inline fluorescence sensor for PTSA tracer monitoring in compatible water-treatment systems. Use its PTSA reading with the documented tracer-to-treatment-product relationship when configuring dosage feedback.
For fluorescein, NDSA or another tracer, confirm a suitable calibrated optical channel and the ordered configuration. A PTSA reading alone does not identify or quantify every fluorescent tracer.
- Measurement precision
- High stability
- Low power design
PTSA fluorescence is detected after the tracer absorbs excitation light and emits light at a different wavelength. The calibrated response indicates PTSA concentration within the validated range. It does not directly measure fluid flow, locate an oil reservoir or determine every active ingredient in a treatment chemical.
| Required information | Use of the PTSA result |
|---|---|
| PTSA concentration | Check the supplied calibration and compare with an independent PTSA reference. |
| Treatment-product dose | Use the known PTSA content of that formulation and the correct units. A change in product or tracer ratio requires a new relationship. |
| Active inhibitor or treatment performance | Tracer concentration does not independently prove the remaining active inhibitor, corrosion control or scale-control performance. Use the relevant checks. |
Commission the monitoring loop
- Choose a representative, well-mixed sampling point. Confirm flow-cell installation, materials, pressure, flow and temperature limits for the supplied SR-510.
- Use the supplied zero/span procedure and appropriate PTSA standards. Verify after calibration, and review background fluorescence, coloured water, particles, bubbles and optical-window deposits if the result changes.
- Confirm the controller, output scaling, alarm settings and response to loss of flow or invalid readings before enabling dosing. The sensor alone does not establish a complete dosing-control package.
- Inspect and clean the optical surfaces using the supplied method. Set verification and maintenance intervals for the actual water and chemical programme.
- The listed outputs include RS485 Modbus RTU and 4–20 mA. Confirm which are supplied, their wiring, digital register map and analog scaling; an analog current signal is distinct from the digital protocol.
Original range, response, accuracy, cable and temperature values are retained. Confirm the response-test conditions, pressure/flow limits and output version in the current SR-510 documentation. The list of other tracers does not establish that every channel is included.
| Brand | Apure |
|---|---|
| Model | SR-510 |
| Measuring range | 0-200ppb |
| Response | <30s |
| Accuracy | ±1%FS |
| Signal outputs | RS485 Modbus RTU 4-20mA |
| Cable length | 5 meters |
| Temperature | 4～50℃ |
