Pyxis ST-765SS-FCL Free Chlorine + pH Sensor with FR-50 Flow Reservoir Kit (Stainless Steel)
Stainless steel free chlorine + pH sensor, 0-5ppm, complete with FR-50 flow reservoir kit and rotameter. Dual 4-20mA + RS-485, 8-pin connector.
Pyxis ST-765SS-FCL Free Chlorine + pH Sensor with FR-50 Flow Reservoir Kit (Stainless Steel)
The ST-765SS-FCL is a stainless steel-bodied, membrane-less sensor that measures Free Chlorine (0-5ppm) alongside pH and temperature using Pyxis Lab's bare-gold electrochemical detection technology, with internal compensation that keeps readings consistent with DPD wet chemistry. This variant includes the FR-50 Flow Reservoir Kit with rotameter, giving a controlled, visible sample flow path for installations without an existing flow cell. The replaceable front-loading reference electrode gives a typical service life of up to 2 years.
Description
The ST-765SS-FCL is a stainless steel-bodied, membrane-less sensor that measures Free Chlorine (0-5ppm) alongside pH and temperature, using Pyxis Lab’s bare-gold electrochemical detection technology with internal compensation that keeps readings consistent with DPD wet chemistry. The stainless steel body suits industrial and wastewater applications where a CPVC body would not be appropriate.
This variant includes the FR-50 Flow Reservoir Kit with rotameter, giving a controlled, visible sample flow path for installations that don’t already have an existing flow cell. The reference electrode assembly is replaceable and front-loading, giving reduced polarization time on startup and a typical service life of up to 2 years.
Dual isolated 4-20mA outputs plus RS-485 Modbus, connected via an 8-pin connector, support integration with a PLC, SCADA, or third-party controller — making this a complete, ready-to-install monitoring package for industrial free chlorine control.
Why Use This
Ready-to-Install Flow Path
The included FR-50 Flow Reservoir Kit with rotameter gives a controlled, visible sample flow for sites without an existing flow cell.
Built for Industrial Duty
The stainless steel body handles industrial and wastewater applications where a CPVC sensor body would not be appropriate.
Lower Maintenance
The replaceable, front-loading reference electrode gives a typical service life of up to 2 years with reduced startup polarization time.
Applications
- Industrial wastewater treatment — stainless steel body suited to demanding process environments
- New installations without an existing flow cell — FR-50 Flow Reservoir Kit provides a ready-made sample flow path
- PLC/SCADA-integrated chlorine control — dual 4-20mA and RS-485 outputs via 8-pin connector
FAQ
What comes included with this variant?
This configuration includes the FR-50 Flow Reservoir Kit with rotameter, giving a controlled, visible sample flow path for sites without an existing flow cell.
What water types is the stainless steel body designed for?
The stainless steel body suits industrial and wastewater applications where a CPVC body would not be appropriate.
What is the free chlorine measurement range?
It measures 0-5ppm free chlorine.
How does it connect to a control system?
Via dual isolated 4-20mA analog outputs plus RS-485 Modbus, through an 8-pin connector, for integration with a PLC, SCADA, or third-party controller.
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