Oxygen Monitoring for Industrial Tank & Vessel Inerting

The appropriate oxygen concentration depends on the materials being stored or processed, the inerting gas, and the operating conditions. For vessels containing flammable vapors or combustible dusts, oxygen limits should be established based on the applicable limiting oxygen concentration (LOC), with an appropriate safety margin. There is no universal oxygen threshold for all industrial vessels. Continuous oxygen monitoring helps verify that concentrations remain below the established operating limit.

The OMD-150 continuously measures oxygen concentrations in gas sampled from the vessel headspace or vent line. An increase in oxygen concentration may indicate air ingress, inadequate nitrogen purging, seal leakage, or other inerting system problems. By monitoring oxygen trends and integrating the analyzer with appropriate alarm systems, operators can identify deteriorating inerting conditions and take corrective action before established operating limits are exceeded.

Yes. The OMD-150 can provide oxygen measurement signals to compatible process control systems for automated purge adjustments, alarms, or shutdown functions. When oxygen concentrations exceed established operating limits, the control system can initiate appropriate corrective actions based on the facility’s safety requirements. Safety-critical functions should be properly engineered and validated for the specific application.