Improvements after implementing advanced operator displays
Philosophy
Task
Traditional
Advanced operator displays
Improvement
Identi cation
HMI
Management of change
Detecting abnormal situations before alarms occur Success rate in handling abnormal situations Time to complete abnormal situation tasks
10% of the time
48% of the time
Rationalisation
5 x increase
Detailed design
Audit
70%
96%
37% over base case
Implementation
18.1 min
10.6 min
41% reduction
Operation
Monitoring and assessment
Maintenance
Table 1
Source: The High Performance HMI
Advantages, NovaChem/ASM Consortium Study
Figure 7 ISA-18.2 alarm management lifecycle
benefits (see Figure 7 ). Having alarm reports available for operations and higher-level KPIs for leadership ensures good visibility that the program is being maintained appropriately. Conclusion Manufacturers are realising the importance of operator performance initiatives to improve safety and reliability by mitigating human error. Updates to industry standards and sharing of these good practices enable the opportunity to improve operator situational awareness. Manufacturers should align their practices with industry standards and rec- ommendations and develop a sustainable lifecycle for key aspects that impact operator performance in the long term.
David Lee is the President of User Centered Design Services and a Chartered Engineer and Fellow of the Institution of Chemical Engineers in the UK. Lee is active in standards development through his involve- ment in the International Society of Automation (ISA) where he sits on the Standards and Practices board and is Director for the Chemical and Petroleum Industries Division. Tim Olsen is the alarm management business development lead for Emerson Automation Solutions. He is an AIChE Fellow, a Vice Chair for AFPM’s Automation committee, and a member of ISA 18.2 alarm man- agement standards committee. Olsen holds a BS degree in chemical engineering from Iowa State University, with an emphasis in industrial engineering and process control, and an MBA from the University of Iowa. Email: tim.olsen@emerson.com
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