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Rosemount™ 6888 In Situ Oxygen Analyzer
rosemount 6888
The Rosemount 6888 In Situ Oxygen Analyzer provides a continuous, accurate measurement of oxygen in flue gases coming from any combustion process.
Accurate measurement of excess oxygen is critical to optimize the combustion reaction, resulting in reduced energy costs, increased safety, and lower emissions. Achieve a reduction in overall downtime and maintenance with the robust oxygen sensor and autocalibration capabilities of this transmitter.
Rosemount™ 6888 In Situ Oxygen Analyzer


Response Time
Up to 8 sec T90
Process Temperature Range
Up to 1300 °F (705 °C) or 1922 °F (1050 °C) with optional bypass and jacket
Ambient Temperature
-40 to 158 °F (-40 to 70 °C)
Probe Length Options from 18 in (0.46 m) to 12 ft (3.66 m)
Communication Protocol
4-20 mA HART, FOUNDATION Fieldbus
Hazardous location, see full specs for complete list of certifications
Measurement Type
Oxygen, Zirconia - Brazed Disk
±0.75% of reading or ±0.05% O2, whichever is greater
Measurement Range
0 to 10% or 0 to 50%


  • Features industry-leading accuracy of ±0.75% of reading or ±0.05% O2, whichever is greater
  • Digital communication HART® 5 and FOUNDATION™ Fieldbus protocols available to suit a wide range of applications
  • Optional Xi Electronics include a local operator interface (LOI), a large, backlit LCD display and advanced software features
  • Probe mounting adaptors allow for easy connection to existing Westinghouse World Class, Rosemount Oxymitter and most competitive O2 probe installations
  • Advanced sensor diagnostics indicate when calibration is recommended and when there is a plugged diffuser or filter
  • The Rosemount 6888 is fully field-repairable and includes a variable probe insertion option
  • HART™ wireless communication from probe or Xi