Analysis / Research

Products used in safety systems must be extremely reliable. In order to prevent faults from accumulating and to render unavoidable risks extremely unlikely, the probability of undetectable errors occurring must be kept low.
 
For this reason, it is necessary to prepare an analysis of potential errors for all components or for the entire safety system.
Typical methods to this end are:
•    Calculations based on worst case, typical case, best case scenarios
•    MTBF value, FIT, ʎ-values
•    FMEDA analysis and calculation
•    Markov analysis
 
For obtaining proof of machines achieving the necessary performance level, the following analyses and calculations have to be carried out:
•    FMEDA for all safety-relevant functions
•    Compilation of failure rates and B10d values
•    Combination of PL and SIL values
•    Establishing of safety block diagrams and structures
•    Calculations according to SISTEMA, Mathcad or Excel