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Autoflo Technology

Pyxis SP-350 PTSA Handheld

Handheld fluorometer for direct concentration measurement of PTSA (0-300ppb) with colour and turbidity compensation.

Pyxis Lab
Fluorometric Sensor
Cooling & Boiler Water Line

Pyxis SP-350 PTSA Handheld

Model:
SP-350
Brand:
Pyxis Lab

The Pyxis SP-350 is a handheld fluorometer built for direct concentration measurement of PTSA (0-300ppb) in industrial cooling, boiler, and process water. Water samples are filled directly into the sample cell, eliminating the need for cuvettes, while proprietary algorithms compensate for colour and turbidity contamination to improve accuracy. Bluetooth 5.0 connectivity via the uPyxis app supports custom configuration and firmware updates.

No cuvette required — samples are filled directly into the sample cell, reducing cost and simplifying testing
Contamination compensation — proprietary algorithms correct for colour and turbidity interference for more accurate PTSA readings
No cuvette required — samples are filled directly into the sample cell, reducing cost and simplifying testing

Description

The Pyxis SP-350 is a handheld fluorometer built specifically for direct concentration measurement of PTSA (0-300ppb) in industrial cooling, boiler, and process water. Water samples are filled directly into the sample cell, eliminating the need for sample cuvettes and reducing overall testing cost.

Proprietary internal algorithms compensate for colour and turbidity contamination, improving measurement accuracy, while a turbidity over-range alarm flags samples with excessive turbidity. An internal sample cell cleanliness diagnostic supports predictive cleaning maintenance, and a large colour graphic screen with a LOCK-IN feature displays the reading once it has stabilised.

Like other Pyxis Lab handhelds, the SP-350 is fully integrated with Bluetooth 5.0 for wireless access via the uPyxis app, supporting customised settings, configuration, and firmware updates. It is rated IP67, runs on a 9V alkaline battery for approximately 3,200 readings, and offers an adjustable measurement cycle of 15-999 minutes.

Why Use This

Faster, Lower-Cost Testing

Direct-fill sampling removes the need for cuvettes, cutting consumable costs and simplifying the testing process.

Improved Measurement Accuracy

Built-in colour and turbidity compensation reduces interference that can distort PTSA readings in field samples.

Predictive Maintenance

Integrated sample cell cleanliness diagnostics help schedule cleaning before measurement accuracy is affected.

Applications

  • Industrial cooling water testing — direct PTSA concentration measurement for cooling systems
  • Boiler water treatment monitoring — cuvette-free field testing for boiler water programs
  • Process water analysis — predictive cleaning diagnostics support ongoing process water testing routines

FAQ

What does the SP-350 measure and over what range?

It measures PTSA concentration directly, over a range of 0-300ppb.

Do I need sample cuvettes to use this meter?

No. Water samples are filled directly into the sample cell, eliminating the need for cuvettes and reducing overall cost.

How does the SP-350 handle sample contamination during testing?

Proprietary internal algorithms compensate for colour and turbidity contamination, and a turbidity over-range alarm flags samples with excessive turbidity for improved accuracy.

What is the battery life and measurement cycle time?

It runs on a 9V alkaline battery rated for approximately 3,200 readings (480mAh), with an adjustable measurement cycle of 15-999 minutes.

Download

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

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