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Calibration and Bump Test Sequence for H2S and ClO2

When calibrating devices, the presence of Hydrogen Sulfide (H2S) will cause the Chlorine Dioxide (CIO2) response to show an OL then UL error.

Blackline manufacturing uses a Chloride Dioxide electrolytic generator as the source for CIO2 calibration gas. The recommended balance gas for the single H2S source is either nitrogen or a synthetic air blend.