What’s on your Christmas list? Instead of relying on Santa, here are some gifts you can expect from a SIL 3 compliant process:
- 12 safety requirements improved through review by test engineers
- 11 validation tests that uncovered problems before they reached the field
- 10…
- by John Yozallinas, CFSE
- Friday, November 04, 2016
- Functional Safety
Back to the Future?
At 7am, my personal robot (I call him ‘Jake’) turns on the bedroom lights to 50% brightness and waits for my body to recognize the onset of morning. If I take longer than 5 minutes, Jake will begin to play some soft music. This is usually enough to get…
- by Patrick O'Brien
- Wednesday, January 12, 2022
- Functional Safety
Machinery Hazards and Risk Assessment Techniques
Machinery related hazards continue to result in hundreds of deaths and thousands of serious injuries each year. In 2019, 2,963 deaths occurred in the construction, transportation and warehousing, agriculture, forestry, fishing and hunting, and manufacturing industries in the United States1. Additionally, serious injuries continue to pose a major challenge…
- by John Yozallinas, CFSE
- Thursday, February 16, 2017
- Functional Safety
So what does Interference-Free mean? And why do we care?
An Interference-Free component, either as an interface or a defined functional area, is a system component that is neither safety critical (C3) nor safety relevant (C2), but interfaces with such subsystems.
If a component has been shown to be interference free (C1), then it has been demonstrated that no…
- by Dr. William Goble, CFSE
- Tuesday, May 12, 2020
- Functional Safety
What’s inside a COVID-19 Ventilator?
At exida, we just finished a Failure Modes and Effects Analysis (FMEA) on a medical ventilator. This was done for a new manufacturer who needed independent design verification. It was a fascinating job. We found lots of pneumatic devices very similar if not identical to the kind used in…