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Evolutionary Themes from ISA 84 to ISA 61511
(Mary Kay O'Connor Process Safety Center, 2018)
ANSI/ISA 84.00.01 was the second edition of ISA standard to address safety instrumented systems for the process industry sector and was recognized by OSHA as a good engineering practice within process safety management. ...
TECHNIQUES FOR IMPROVING OPERATOR RESPONSE TO ABNORMAL OPERATIONS
(Mary Kay O'Connor Process Safety Center, 2017)
Safety alarms are among the most commonly identified instrumented safeguards implemented to reduce the risk of hazardous events. Unlike safety interlocks or permissives, alarm safeguards are entirely dependent on operator ...
A Practical Approach to Preventing Systematic Error in the Maintenance of Instrumented Safeguards
(Mary Kay O'Connor Process Safety Center, 2019)
Instrumentation and electrical (I&E) maintenance is typically managed using site-wide policies, practices, and procedures. Since I&E equipment is part of the control system and nearly every other layer of protection, the ...
Learnings from Mary Kay O’Connor Process Safety Center (MKOPSC) Instrument Reliability Network’s Project on Pressure Transmitter Maintenance Data Collection
(Mary Kay O'Connor Process Safety Center, 2016)
This paper presents the results of the first phase of the pressure transmitter reliability data project executed by the Mary Kay O’Connor Process Safety Center’s (MKOPSC) Instrument Reliability Network (IRN). The quality ...