DF-300 Range

DF Series


High sensitive digital trace O2 analyzer range

The DF-300 range is a full-featured, microprocessor-based O2 series offering customers superior value and performance. Based around the DF-310 base model, the DF-300 range uses Servomex’s unique, non-depleting Coulometric E-sensor technology, to give O2 measurements at percent, trace and ultra-trace levels.


  • Extensive background gas compatibility and flexible configuration options.
  • Variants include CSA hazardous-area approved DF-320E for indoor installation and DF-340E for outdoor installation.
  • Coulometric E-sensor delivers accurate results with no sensor drifting, false low readings or frequent calibration requirements.

Sensing Technology

  • Coulometric

Gas Measured

  • O2 (Oxygen)

Unit Measurement

  • ppm (trace)
  • ppb (trace)


  • Air Seperation Unit (ASU)
  • CQC- Pre-Purifier Gas
  • UHP Semicon Application

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