Offering exceptionally accurate oxygen (O2) analysis through unique coulometric sensor technology, the Delta F DF-150E from Servomex delivers heat-treatment processes the measurement stability and reliability that guarantees exceptional batch quality and improves plant safety. Offering both single range or 3 range options – ideal for furnace start-up and operation conditions – and exceptional accuracy of ±3% of reading/0.5% of measurement range, the DF-150E utilizes Servomex’s unique, non-depleting E-sensor technology to ensure accurate results with no sensor drifting, no false low readings and no frequent calibration requirements. This produces a “no fail” performance crucial to successful heat-treatment processes, where a false O2 reading can waste thousands of dollars in poor batch quality or cause safety issues when using hydrogen (H2) or mixtures using H2 as a blanketing gas.