Consider eight key points:1.A gas-detector trip,if not spurious,represents a major safety concern,so you should address this first:1.1 Review logbooks,data historians or trends to determine events that could have caused an alarm trip.1.2 Talk to operators who were on shift when the trip occurred;they might offer valuable insights.1.3 Survey the area to ensure gas leaks are not recurring.2.On the other hand,if spurious signals caused the trip,then consider checking calibration(with appropriate gas samples).Point gas detectors based on infrared could suffer from interference.Similarly,dirt or trash could affect catalyst bed detectors.Although the selection and design phase of area gas detectors generally considers issues such as spurious signals,lack of signals(dangerous failure),calibration,installation and maintenance,recheck.Contact the gas detector supplier to discuss these issues.Recent models of gas detectors with auto-diagnostics provide a safer and reliable setup.
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