Ask this service to verify and validate an instrumented system in accordance with IEC 61511

The construction and commissioning of a safety instrumented system (SIS) involves the use of various individual components that are designed to perform specific control functions in relation to safety.

However, even if each individual component selected for the system can reach the required SIL (Safety Integrity Level) this does not automatically mean that the SIS as a whole will achieve the same level of compliance.
For this reason, it is advisable to use consultanting for the process of SIL verification and validation in line with IEC 61511. It can help you build a complex system, starting by selecting the most suitable components available on the market, thus ensuring that the system as a whole is able to reach a specific SIL.

A typical IEC 61511 compliance project will see us directly involved in planning and support at the following stages:

• Support in selecting components from the point of view of Functional Safety
• Preparation of the safety plan with contents in accordance with paragraph 5.2.4 of IEC 61511
• Preparation of the SRS document with contents in accordance with paragraph 10 of IEC 61511
• Preparation of the Safety Manual with contents compliant with paragraph 11.2.1 of IEC 61511.
• Preparation of functional test plans and reports
• Preparation of a Safety Analysis Report (SAR) in accordance with NOG 070, for evaluating all the main aspects in relation to functional safety

The development of the necessary application software, and its validation, are equally important parts of this process. Many potential risks to Safety Instrumented Systems relate to the fault management tools, or to diagnostic functions inactivated during programming. Our consultancy service helps you implement the application software in the correct way: from the development phase, to the targeted tests, and finally the validation process.

The service we offer is applicable to any system, whatever its size and complexity: from small stand-alone electromechanical systems, to entire systems distributed throughout the field with multi-platform software (e.g. HIPPS, Turbomachinery, Fire & Gas Systems, etc.).

Get in touch with us to comply with the functional safety standards.

Plan your company on-the-job training on functional safety requirements

Knowledge of IEC 61511 requirements is essential for the integrator who uses components already compliant with IEC 61508, and who is required to perform an overall assessment of the safety functions, to prevent aspects related to the safety of people, the environment and the infrastructure itself.

The persons responsible for safety systems in the process industry are given training in IEC 61511 so they can acquire essential knowledge of the safety systems and their functional safety requirements.

The training sessions can be held either online or in person according to the needs and number of participants.
The training is on-the-job, allowing personnel to gain theoretical and practical knowledge of the entire process of integrating safety systems used in the process industry that comply with functional safety standards.
The training course covers the IEC 61511 standard and the principles of functional safety that must be applied to achieve the required SIL level, following an technical-operational approach.

The training sessions are held by TÜV Rheinland certified specialists with many years of theoretical and operational experience in the field of functional safety, and include the following modules:

• Management of functional safety
• Requirements of the safety lifecycle
• Risk analysis
• Safety Instrumented Functions
• Assignment of SIL
• Probability of failure on demand (PFD)
• Safety Instrumented Systems
• Residual Risk and Tolerable Risk
• Determining of SIL
• Calculation of PFDavg
• Diagnostic coverage (DC)
• Mean time to repair (MTTR)
• Proof Test and Proof Test Interval
• Periodic Partial Tests
• The Safety Manual
• Risk analysis methods PRA, ALARP, HAZOP, LOPA
• Installation, operation and maintenance of the SIS
• FAT and SAT
• Installation and commissioning of the SIS
• Use and operation of the SIS
• Maintenance, modification and disposal of the SIS

The skills acquired can therefore be put to immediate use in your organization, and are certified with the participation certificate​.

Get in touch with us to acquire the right skills on functional safety.