EMERSON
計測機器
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Rosemount™ 490A Dissolved Oxygen Sensor

The Rosemount 490A Optical Dissolved Oxygen Sensor uses an EPA-approved luminescence-quenching method with a low-maintenance sensing cap.

The Rosemount 490A Optical Dissolved Oxygen Sensor features a low maintenance sensing cap that measures dissolved oxygen using the Environmental Protection Agency (EPA)-approved luminescence-quenching method. The dissolved oxygen sensor is compatible with the Rosemount 1058 Transmitter and ideal for use in wastewater aeration basins and ponds.

主な特長

  • Easy automatic air calibration
  • Low maintenance sensing cap only requires replacement every two years
  • Reads accurately within 90 seconds of going from dry to wet conditions
  • Rear facing 1" NPT process connection for easy submersion type installations
  • Dissolved oxygen sensor measures dissolved oxygen using fluorescence quenching method
  • Chemical and abrasion resistant