Fire and gas detection systems are crucial for the industry because they can play a decisive role in preventing loss of containment events. Calculating coverage and verifying effectiveness, based on a defined methodology, allows the fire protection system to be credited as a safety layer.

The International Society of Automation (ISA) Technical Report, TR 84.00.07 – Guide for the Evaluation of the Effectiveness of Fire Detection, Combustible Gas Detection, and Toxic Gas Detection Systems, defines the lifecycle that should be followed for evaluating system risk calculations. This methodology determines the mitigation of an existing risk by considering the failure probabilities of the equipment that make up the detection, suppression, and/or isolation functions. Since all devices have an inherent probability of failure, reliability values provided by international databases or data supplied by device manufacturers are used.

Due to the importance of the effectiveness of these systems, Pryxida TECH verifies the coverage of flame and gas detectors using software that incorporates 3D models of the areas to be protected, utilizing the coverage angles and radii specified by each detector manufacturer. This analysis provides the percentage of coverage of the defined area or volume, allowing the fire protection system to be credited as a protection layer to mitigate the risk associated with the facility.