Alarms use in process industry is fundamental for avoiding process accidents in which people, the environment or process equipment could be damage. All chemical and petrochemical plants should have a distributed control system (DCS) for setting alarms values and to provide indication of abnormal events to the control rooms operators. The presence of improper alarms could send a bad signal to control room opera tors and and it could be the start of a Process Safety Event; for this reason, a variety of advanced alarm management tools have been developed recently. This work presents a industrial case study based on alarm data collected from a petrochemical plant, ubicated in industrial zone of Cartagena de Indias-Colombia. Results show the big utility of these tools and the important information/knowledge in able to develop from advanced alarm analysis, also the study could conclude that this kind of evaluation could improve the alarm racionalitazion and better recommendations for alarm settings.
