Safety Engineering

Do you know where your risks are?

H-ON supports you in identifying your risks and helps you to use that information in order to solve problems before they occur.

List of Services:

Are you an Industrial Manufacturer that needs support in indentifying the risks related to the use of your machines?

H-ON develops risk analyses according to the best-proven international standards for any type of machines, even for specific risks such as explosive atmospheres.


H-ON's Main Advantages:

  • More than 20 years of experience in this service
  • Possibility to CE mark the product in its own name
  • Customizable Risk Analysis method and template

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Are you a Constructor of components or integrated systems aimed at one or more safety functions?

Whether it is about a sensor or a mechanical valve rather than a complex measurement system or a logic solver equipped with firmware or embedded software, the requirement is always the same, provided that these products are designed to be integrated into a safety loop: validating the conformity to use for safety applications by means of the safety life cycle, as defined by the IEC 61508 series of standards.

H-ON provides a complete service in terms of conformity assessment for components or integrated systems for any SIL (SAFETY INTEGRITY LEVEL) level you may want to achieve. If requested, H-ON is also able to issue the relevant SIL certification which can be used at international level.


  • Custom-made service: whether you only need a part of the SIL certification or a complete support service designed for the realization of every safety life-cycle phase.
  • Single interface for hardware and software: is your device equipped with firmware or do you have a logic solver programmable with embedded software? No problem, H-ON will support you in the whole procedure, as for hardware and software.
  • SIL type certificate issued by H-ON: it enables the manufacturer to create in series the products covered by the certification in total autonomy and, unless otherwise specified, without any production limits and having to rely on external laboratories for tests or examinations during the production process.

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Are you a System Integrator or an End-user whose products are designed to perform one or more safety functions?

The realization and commissioning of a Safety instrumented system (SIS) is certainly connected to the use of single suitable components in order for those to be implemented into safety-related control functions.

However, the selection and combination of components which are individually able to achieve the agreed SIL (SAFETY INTEGRITY LEVEL) does not automatically imply that the entire SIS can actually be achieved. For this reason, H-ON supports both the system integrators and end-users in this important phase through the use of a series of services designed for those who need to create a complex system, starting from the selection of components available on the market. The overall aim is to create a system able to achieve a specific SIL level as a whole.

Last but not least, the development of an applicative software and consequently its validation is an important part of this phase. Many of the potential risks involved in SIS derive from any fault management logics or diagnostic capabilities which are ineffective due to programming. H-ON hence supports its customers in the correct implementation of the applicative software during the development phase and the subsequent testing and validation phase.


  • Custom-made service: adaptable to any extent and complexity, from the small stand-alone electromechanical systems up to the overall systems distributed on site and the multi-platform.
  • Single interface for hardware and software: H-ON will support you in the whole procedure, not only in the hardware integration, but also the development and validation of the applicative software.

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Are you an Industrial Manufacturer that needs support in indentifying the PL reached by the safety related system of your machines?

H-ON provides a comprehensive support with the analysis of compliance of your machineries in accordance with ISO 13849-1 and ISO 13849-2. We determine the PL to be reached, analyze the SRP / CS implemented into the machine and the CCF as well as the Systematic Capability Validation Calculation Software and PL.

H-ON's Main Advantages:

  • Full service: from the determination of the required PL, to the definition of the requirements, up to the drafting of contracts for inspection and maintenance specifications
  • Ability to suggest detailed technical solutions including the identification of the components to be used
  • Full analysis Hardware and Software
  • Calculation carried out by means of approved software

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Are you a Process Designer that needs to address risks with the right compromise between costs and benefits?

Layer of Protection Analysis (LOPA). The method starts with data developed in the Hazard and Operability analysis (HAZOP study) and accounts for each identified hazard by documenting the initiating cause and the protection layers that prevent or mitigate the hazard. The total amount of risk reduction can then be determined and the need for more risk reduction analyzed. If additional risk reduction is required and if it is to be provided in the form of a Safety Instrumented Function (SIF), the LOPA methodology allows the determination of the appropriate Safety Integrity Level (SIL) for the SIF.

HON provides services for all figures involved during LOPA such as:

  • engineers with expertise in the process;
  • manufacturing management;
  • process control engineer;
  • instrument/electrical maintenance person with experience in the process under consideration;
  • risk analysis specialist.


  • More than 10 years of experience in this service: The H-ON team has over 10 years of continuous analytical services, developed in support of the biggest manufacturers of industrial products in the world.
  • Fully integrated LOPA and ALARP analysis methods: H-ON is able to carry out a combined analysis of both methodologies in order to find the right balance between effectiveness and economic sustainability and maintenance of productivity.
  • Adapting to customer project template, procedure and time schedule: H-ON offers its customers an appreciated flexibility to adjust their times to those of the customer and assign the right resources in line with the project objectives. H-ON also provides flexibility in the process of service delivery by adapting its process to the customer in terms of documents, specifications and standards.

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Are you a System Designer that needs to verify whether your control system meets a specific SIL level?

Along with the growing size of facilities (i.e. facility’s capacity) and greater demand from the product users on the reliability of product delivery, the effects of unexpected interruptions of facility operation are becoming more and more serious for their owners.

H-ON offers a full set of Reliability, Availability and Maintainability (RAM) and Reliability, Availability, Maintainability and Safety (RAMS) analysis in order to identify constituent elements (i.e. equipment or subsystems) whose failure affects the facility availability, performing quantitative reliability analysis and proposes effective countermeasures in order to improve the system reliability and maintainability, without forgetting the safety.

H-ON's Main Advantages:

  • Computation method using Monte Carlo or Markov simulations
  • Highly detailed level of Reliability Block Diagrams modelling

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Are you an Industrial Manufacturer that needs support in indentifying the SIL/PL reached by specific equipment of your system/machinery?

H-ON carries out the reliability analysis of components built by its customers, in accordance with the essential requirements of international standards, such as IEC 61508 or ISO 13849, by means of a detailed analysis of the components for each device.
We are able to carry out all of the main reliability analyses, such as FMEDA, FMECA, EVENT TREE, FAULT TREE, and FMD STUDY.

H-ON's Main Advantages:

  • Analysis for any type of component, mechanical, electronic, electromechanical
  • Implementation of the most recognized design software available on the market

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Are you a Process Designer that needs support in identifying the criticality of a system?

H-ON supports you in identifying the safety and availability of your processes.

We help you to obtain all the necessary information in order to solve problems before they occur.

H-ON's Main Advantages:

  • Specifically-designed service for complex systems
  • Implementation of the most recognized design software available on the market

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