Pyxis ST-587 Inline PTSA + Turbidity Sensor
Inline fluorometer and turbidimeter measuring PTSA (0–500ppb) and turbidity (0–200NTU) with colour and turbidity compensation. UPVC body suited to pressures below 100psi.
Pyxis ST-587 Inline PTSA + Turbidity Sensor
The Pyxis ST-587 is an inline fluorometer and turbidimeter that measures PTSA concentration (a common fluorescent tracer) and turbidity in the same sample stream, using LED UV and warm white light sources. Extra photo-electric components automatically compensate for sample colour and turbidity that would otherwise interfere with a standard fluorometer reading. The UPVC body suits application pressures below 100psi, with 4-20mA and RS-485 Modbus outputs for direct controller integration.
Description
The Pyxis ST-587 Series inline fluorometer and turbidimeter measures PTSA concentration and turbidity in the same sample stream, using both LED UV and warm white light sources. PTSA is commonly used as a fluorescent tracer in cooling and process water treatment, and this variant covers a 0-500ppb PTSA range and 0-200NTU turbidity range.
Extra photo-electric components measure sample colour and turbidity, giving automatic compensation to eliminate interference that would otherwise affect a standard fluorometer, along with in-situ sensor cleanliness diagnostics. Its short fluidic channel design is easier to clean than fluorometers with a flat distal sensor surface or a long, narrow fluidic cell, and a narrow-wavelength-band gallium phosphide photodiode with temperature- and humidity-resistant optical filters keeps it stable across a wide range of ambient conditions.
The sensor connects to any device accepting isolated or non-isolated 4-20mA input, or RS-485 Modbus, and calibration and cleaning are handled via the MA-CR Bluetooth/USB adapter and uPyxis app. This UPVC-bodied version suits application pressures below 100psi (6.9 Bar); for higher-pressure systems, see the ST-587SS stainless steel variant.
Why Use This
Reliable readings despite interference
Automatic colour and turbidity compensation eliminates interference that would otherwise distort a standard fluorometer reading.
Lower maintenance
The short fluidic channel design is easier to clean than fluorometers with a flat sensor face or a long, narrow fluidic cell.
Stable across ambient conditions
A gallium phosphide photodiode with temperature- and humidity-resistant optical filters keeps performance stable without separate environmental controls.
Applications
- Cooling water tracer monitoring — PTSA fluorescent tracer tracking in cooling water treatment
- Process water treatment — combined PTSA and turbidity monitoring in one sensor
- Standard-pressure water systems — suited to applications below 100psi (6.9 Bar)
FAQ
What does this sensor measure?
It measures PTSA concentration (0-500ppb) and turbidity (0-200NTU) in the same sample stream, using LED UV and warm white light sources.
What is the maximum operating pressure?
The UPVC body suits application pressures below 100psi (6.9 Bar); for higher-pressure systems, the ST-587SS stainless steel variant is available instead.
How does it handle sample colour or turbidity interference?
Extra photo-electric components measure sample colour and turbidity and automatically compensate to eliminate interference that would otherwise affect a standard fluorometer reading.
How is the sensor cleaned and calibrated?
Diagnosis, cleaning, and calibration are handled via the MA-CR Bluetooth/USB adapter and the uPyxis mobile or desktop app. Its short fluidic channel design is also easier to clean than fluorometers with a flat sensor face or a long, narrow fluidic cell.
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