säkerhetsinstrumentering

Säkerhetsinstrumentering refers to the instruments and systems used to monitor, control, and protect industrial processes and facilities from hazardous conditions. These instruments play a critical role in preventing accidents, ensuring operational safety, and maintaining the integrity of equipment. The primary function of säkerhetsinstrumentering is to detect abnormal conditions such as overpressure, high temperature, or gas leaks, and to automatically initiate protective actions.

These protective actions can include shutting down a process, activating alarms, or opening relief valves. The design and implementation of säkerhetsinstrumentering are governed by strict international standards, such as IEC 61508 and IEC 61511, which define the principles of functional safety. These standards ensure that safety instrumented systems (SIS) are designed to achieve a specific level of risk reduction, quantified by a Safety Integrity Level (SIL).

Key components of a safety instrumented system include sensors that detect deviations from normal operating parameters, logic solvers (often programmable safety controllers) that process the sensor input and determine the required action, and final elements (like automated valves or circuit breakers) that execute the protective action. Regular testing, maintenance, and verification are essential to ensure the continued reliability and effectiveness of säkerhetsinstrumentering. The goal is to create multiple layers of protection, with säkerhetsinstrumentering being a critical independent layer designed to act when basic process control systems fail or are insufficient.