Pyxis dissolved oxygen sensor

Pyxis ST-774

The Pyxis ST-774 is an ultra-low range dissolved oxygen (DO) sensor with a lower limit of detection

The Pyxis design is based on the principle of fluorescence quenching to determine the partial pressure of dissolved oxygen in water and incorporates Pyxis’ advanced technology in the field of fluorescence detection. The ST-774 offers the robustness associated with optical DO sensor technology whilst achieving a ultra-low detection limit.

Features

  • 0.0-2,000 μg/l measurement range with 0.1 μg/l Limit of Detection (LOD)
  • Built-in temperature and pressure sensors
  • Accurate and stable measurement with ultra-low drift
  • Built-in transmitter without the need of using a preamplifier
  • Dual outputs: isolated 4-20 mA signal and RS-485 Modbus
  • ST-774 DO sensor w/flow cell
  • Long-distance transmission with higher stability and accuracy
  • Wireless calibration, diagnostics, data trend via uPyxis app when used with MA-CR adapter
  • Zero-point easy calibration using catalysed sulphite zero calibration kit
  • Optional zero-point calibration with nitrogen and slope calibration in O2-containing calibration gas

Downloads

Datasheet
Manual

Typical applications

  • HP boiler feed water / de-aerator storage
  • Power facilities
  • Ultra-pure water
  • Closed loops
  • Condensate return
  • Beverage production / post fermentation
  • Semiconductor rinse water

Product information

Related products

  • Pyxis ST-772 Series

    Pressure & temperature DO
    Measures DO, incorporating pressure and temperature compensation

  • Pyxis ST-773

    Temperature compensation DO
    Measures DO, incorporating temperature compensation

  • Galvanic dissolved oxygen
    Accurate DO monitoring with large capacity for long term deployment

  • Galvanic dissolved oxygen
    Economical & durable DO sensor

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Accessories

  • Dosing tanks and bunds

    Dosing tanks & bunds
    Round or rectangular in a range of capacities from 25 to 1,000 litres.

  • Pyxis MA Series

    MA Series
    Inline BlueTooth® 5.0 wireless adapters

  • Pyxis MA Series

    Powerpacks
    Pyxis PowerPACK series BlueTooth® auxiliary adapters

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