SIL Subsystem Certification for Fuller Technologies Denmark A/S
2026-01-28
Certified functional safety requires evidence — not assumptions
Risknowlogy has certified safety-related gas analysis subsystems supplied by Fuller Technologies Denmark A/S in accordance with IEC 61511.
The certification covers gas analysis systems used in safety instrumented functions (SIFs), where reliable detection and timely response are essential to risk reduction in the process industry.
This certification confirms that the assessed subsystems meet the applicable functional safety requirements and that the associated safety claims are technically justified, documented, and independently verified.
Scope of the certification
The SIL subsystem certification includes an independent assessment of:
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Functional safety management
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Safety requirements specification
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Hardware and reliability requirements
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Software requirements
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Basic safety principles
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User documentation
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Factory Acceptance Testing (FAT)
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Integrated Factory Acceptance Testing (IFAT)
The assessment is performed against the requirements of IEC 61511:2016, following a lifecycle-based approach consistent with industry best practice.
Verified safety performance
As part of the certification process, the safety functions implemented by the subsystem were reviewed and verified, including:
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Safety function definition and architecture
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Hardware fault tolerance (HFT)
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Proof test intervals (PTI)
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Average probability of failure on demand (PFDavg)
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SIL capability of the implemented functions
The resulting safety parameters demonstrate compliance with the targeted SIL levels and provide operators with the data required for integration into their Safety Instrumented Systems (SIS).
What this means for operators and stakeholders
For operators, a certified subsystem provides confidence that safety functions are based on validated assumptions and proven reliability data.
For engineering contractors and system integrators, it supports efficient project execution by reducing uncertainty during SIL verification and safety lifecycle activities.
For insurers, auditors, and regulators, certification offers independent evidence that functional safety requirements have been systematically addressed and verified.
Certification as part of the functional safety lifecycle
SIL certification is not a marketing exercise.
It is a structured, evidence-based confirmation that safety-related equipment performs as intended within the defined operating conditions and lifecycle assumptions.
By maintaining certified, audit-ready safety subsystems, Fuller demonstrates a strong commitment to functional safety and engineering discipline in safety-critical applications.
About Risknowlogy
Risknowlogy is an independent functional safety and reliability specialist, supporting manufacturers, integrators, and operators worldwide with certification, training, and advisory services based on IEC 61508, IEC 61511, and related standards.
Our certifications focus on technical depth, traceability, and real-world applicability — ensuring that safety claims stand up to scrutiny throughout the lifecycle.
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