Walchem ST-772T-P Pyxis Luminescent Dissolved Oxygen Sensors, 0.004-20 mg/L, Inline/Bypass Installation, CPVC

The Pyxis ST-772 Series optical luminescent dissolved oxygen (DO) sensor is based on the principle of ‘fluorescence quenching' to determine the dissolved oxygen content in water. It incorporates Pyxis' advanced technology in the field of fluorescence detection and uses Blue/Red light detection with excitation and reference lightsources, offering a wide detection range and very low detection limit. The sensor also integrates temperatureand pressure sensors, which can perform temperature and pressure compensation for the measurement ofdissolved oxygen based on ambient environmental conditions present in the application of use.

The ST-772 offers an easily replaceable, front loading DO membrane cap that has been independently developed by Pyxis Lab, with a typical service life of up to two years. This unique DO membrane cap design incorporates a black microporous PTFE membrane material designed to provide extreme scratch resistance, extendedlife span and simple replacement. The flat front-end design of the ST-772 makes this platform less prone tocontamination or fouling and is very easy to clean.

Features:

• 0.004-20mg/L Measurement Range
• No Membrane Replacement or Electrolyte Replacement
• Simple DO Cartridge Replacement every 2 Years
• Built-In Temperature & Pressure Sensor with Automatic Compensation
• Accurate & Stable Measurement with Ultra-Low Drift Requiring NO Calibration for up to 2 Years
• Built-In Transmitter without Pre-Amplifier or Meter Head
• Dual Outputs, both 4-20mA Isolated Signal & RS-485 Modbus
• Wireless Calibration, Diagnostics, Data Trend via uPyxis app when used with MA-CR
• Slope Calibration with Air or Air Saturated Water / Zero Calibrate with 5% Sulfite Solution or Nitrogen Gas

Applications:

• Activated Sludge
• Aeration Basin
• Nutrient Removal
• Wastewater
• Sewage Processing
• Chemical/Process Water Applications
• Domestic/Drinking Water Applications
• Filtration Applications
• Aquaculture
• Agriculture
• Compliant USEPA 40CFR Part 136.3 as an Approved Method for Measurement of Dissolved Oxygen in Wastewater, Drinking Water and Direct Discharge

For more information, please see Data Sheet and Manual