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1 Introducing the Pyxis ST-765SS Series Sensors
Description
The Pyxis ST-765SS Series are stainless steel multi-parameter
membrane-less sensors based on unique electrochemical principles
to determine free chlorine or chlorine dioxide and pH content in
water. These sensors incorporate Pyxis' advanced technology in the
field of bare-gold electrochemical detection. The ST-765SS-FLC sensor
integrates free chlorine, plus pH measurement while the ST-765SS-
CLO integrates chlorine dioxide plus pH measurement. Both can
perform temperature and pH compensation for the measurement of
free chlorine or chlorine dioxide based on conditions present in the
application of use. This unique internal compensation results in a
highly accurate oxidizer measurement consistent with DPD wet
chemistry methodology as high as a pH of 9.0 and is compliant with
USEPA – 334.0 guidelines.
The ST-765SS series sensors offer a replaceable, front loading
reference electrode assembly that has been independently
developed by Pyxis Lab eliminating the shortcomings associated with
membranes and gel replacement while offering reduced polarization
time on startup. The flat front-end design of the ST-765SS series
makes this platform less prone to contamination or fouling and is
easy to clean. The ST-765SS series sensor body is composed of 304
stainless steel and is well suited for aggressive environments.
The ST-765SS series sensors offer 2x 4-20mA and RS-485 Modbus
outputs and is Bluetooth 5.0 enabled when used in conjunction with
the MA-CR Bluetooth Adapter. The world's first four-electrode
composite sensor that provides three measured parameters including
free chlorine or chlorine dioxide, pH and temperature with one
sensor RS-485 Modbus output. ST-765SS is the best choice
for potable water, secondary water supply, domestic water and
other clean water applications.
1.1 Features of the Pyxis ST-765SS Series
Key Features
• Real-Time pH + FCl (0-5ppm) or ClO2 (0-5ppm) Detection
• Dual 4-20mA Outputs (FCl or ClO2 + pH) and RS-485
• Bluetooth Enabled with MA-CR Adapter for Wireless uPyxis Calibration
• Integrated RTD & pH Compensation to pH 9.0 of the Oxidizer Value
• Replaceable EH-765 Reference Electrode Assembly – Simple Maintenance
ST-765SS Series
Free Ch pH Sensor
Chlorine D pH Sensor
EH-765
Replacement Electrode
for ST-765SS Series