Biogas, Biomethane, Syngas, Hydrogen

Intrinsically safe and ATEX certified, the EC91 oxygen analyzer detects from 0.01 ppm up to high percentages. With an IP 67 protection rating, the wall-mounted enclosure in a classified area displays the oxygen content and transmits a 4-20 mA signal to a non-hazardous area through a safety zener barrier. A front panel adjustment is provided for calibration with ambient air (20.9% oxygen), ensuring absolute accuracy across the entire range. If better accuracy in trace levels is desired, a calibration gas can be used.