Functional Safety Engineering



Functional safety engineering is a vital aspect of process control systems design. It ensures the safety of both personnel and the environment in industries that utilize and/or involve hazardous materials. Mangan Functional Safety Engineering is a leader in this field. They provide comprehensive solutions for various industries such as petrochemicals, oil and gas, and pharmaceuticals.
One of the primary components of functional safety engineering is compliance with the International Electrotechnical Commission (IEC) standard 61511. This standard lays out the requirements for the implementation, operation, and design of safety instrumented systems (SIS) for the process industry. Mangan Functional Safety Engineering has significant experience in ensuring compliance with IEC-61511, giving their clients peace of mind that their processes are operating safely.


SIL (Safety Integrity Level) validation is another important aspect of functional safety engineering. The SIL is a measure of the effectiveness of an SIS in achieving desired risk reduction. SIL validation verifies that the SIS meets the required SIL level defined by the hazard and risk analysis. Mangan Functional Safety Engineering has a seasoned team of experienced engineers who can conduct SIL validation studies, ensuring that the SIS can achieve the desired risk reduction level.


Developing a Safety Requirements Specification (SRS) is crucial in designing safety instrumented systems. The SRS documents the safety requirements of the system. This includes hazard and risk analysis, safety functions to be performed, and the performance requirements of the SIS. Mangan Functional Safety Engineering has a team of industry experts who develop SRS documents that meet the requirements of IEC 61511. This ensures that the SIS is designed to achieve the required levels of safety.


In addition to SIL validation and SRS development, Mangan Functional Safety Engineering offers Independent Protection Layer (IPL) assessments. An IPL is a layer of protection independent of the SIS, providing an additional layer of protection against hazards. IPL assessments consist of analyzing the effectiveness of the IPL in reducing risk to acceptable levels.
Mangan Functional Safety Engineering’s IPL assessments ensure that the IPL is effective and capable of reducing risk to acceptable levels. Mangan Functional Safety Engineering also offers various other services related to functional safety engineering, including SIS design, testing, implementation, and SIS support and maintenance. Mangan’s team of experienced engineers will work closely with you to ensure that processes are operated safely and efficiently.
Functional safety engineering is an essential aspect of process control systems design, and it ensures the safety of both personnel and the environment in industries involving hazardous materials. Mangan Functional Safety Engineering leads this field, offering complete solutions for various industries. Mangan’s expertise in IEC 61511 compliance, SRS development, SIL validation, and IPL assessments ensures that their clients’ processes are operated efficiently and safely.

04  SIS Functional Safety Assessments (FSA)

04  SIS Functional Safety

Assessments (FSA)
Key to quality assurance for the performance of Safety Instrumented Systems are the FSAs and companion project stage verifications.
These required activities are described in the primarily Functional Safety Standards IEC 61508 and IEC61511
After hundreds of completed FSA at Mangan for different clients and industries, we strongly believed that they provide value ensuring that the SIS effectively reduces process risk helping to prevent incidents.
This experience allows us to develop a FSA plan tailored to specific SIS complexity, client objectives, and processes characteristics.