Expert functional safety engineering services ensuring compliance with IEC 61508 and IEC 61511 standards throughout the complete Safety Life Cycle for process industry applications.
IEC 61508 & IEC 61511 Compliance Specialists
Comprehensive functional safety services from hazard identification through to Safety Instrumented System (SIS) design, implementation, and lifecycle management in accordance with international standards.
Functional Safety Life Cycle
Complete lifecycle management from hazard and risk assessment through design, implementation, operation, maintenance, modification, and decommissioning.
| Phase 1 : Analysis | |
| Hazard & Risk Assessment | SIL Allocation |
| ~ Process hazard identification (HAZID) | ~ Risk reduction target determination |
| ~ Hazard and operability studies (HAZOP) | ~ LOPA (Layer of Protection Analysis) |
| ~ Risk assessment and evaluation | ~ SIL assignment to safety functions |
| ~ Safety requirements specification | ~ Safety requirement specification (SRS) |
| Phase 2: Design & Engineering | |
| SIS Design | SIL Verification |
| ~ Safety instrumented function (SIF) design | ~ PFD (Probability of Failure on Demand) calculations |
| ~ SIS architecture selection (1oo1, 1oo2, 2oo3) | ~ Hardware fault tolerance analysis |
| ~ Component selection (SIL-rated devices) | ~ Systematic capability verification |
| ~ Cause & effect diagrams | ~ Common cause failure analysis |
| Phase 3: Implementation | |
| Installation & Commissioning | Validation |
| ~ Factory Acceptance Testing (FAT) | ~ Pre-startup safety review (PSSR) |
| ~ Site Acceptance Testing (SAT) | ~ SIS functional testing |
| ~ SIF proof testing procedures | ~ Safety validation documentation |
| ~ Installation verification | ~ Safety manual development |
| Phase 4: Operation & Maintenance | |
| Operations Phase | Management of Change |
| ~ Proof test planning and execution | ~ SIS modification assessment |
| ~ Periodic functional testing | ~ Impact analysis on safety integrity |
| ~ SIS performance monitoring | ~ Re-verification after modifications |
| ~ Incident investigation and reporting | ~ Periodic safety review and audits |
Safety Studies & Assessments
- HAZID (Hazard Identification)
- HAZOP (Hazard and Operability)
- LOPA (Layer of Protection Analysis)
- SIL determination workshops
- Quantitative Risk Assessment (QRA)
- Pre-startup safety reviews
SIS Engineering
- Safety Requirement Specification (SRS)
- Safety Integrity Level verification
- Reliability calculations (PFD, PFH)
- SIF design and architecture
- Logic solver programming & testing
- Bypass and override management
Documentation & Compliance
- Safety case development
- Functional Safety Management Plan
- Functional Safety Assessment (FSA)
- SIS design documentation
- Proof test procedures
- Safety lifecycle audit reports
Discuss Your Functional Safety Requirements