Safety standards often require that, the analyzer must produce an alarm whenever the solvent concentration exceeds 60% LFL or some level that leaves a margin of safety. All analyzer systems should have provisions that prevent alarm levels without enough of a safety margin.
All alarms and deviations from expected operation are opportunities to determine if a fault exists in the process or analyzer system.
Even in cases where an "alarm reset" or "acknowledge" clears the alarm condition, the cause of the alarm should be investigated and understood, and where possible correction action should be taken to prevent a recurrence. Special care must be taken to the abuse of alarm reset, calibration or "bypass" controls.