Maintenance Technology September 2016 - 30

SAFETY STRATEGIES of homegrown tools that involve timeconsuming manual inspection of results from manpower-intensive tests. In the process, regular cycles of validation and verification and labor-intensive manual work, whether needed or not, have helped generate the previously referenced hidden costs. For example, in the case of processsafety equipment that has been observed to function well on actual process demand, the test-interval timer can be reset, leading to available discount on the otherwise fixed-test interval. Yet, this benefit can't be captured without the necessary structured documentation of proven good function. The general result from "own-built" approaches, Millette laments, has been the emergence of countless tools that are used with little consistency throughout industry. Consider variations, from one person to the next, in the manual review of results, which can then lead to variability in the quality of the analysis itself. Even worse, "Due to the drudgery of observing long lists of events from logs, Sequence of Event Recorders, Safety Historian functionality of SIS/ESD systems or even of consolidated process and safety-event journals," Millette writes, "the task of such review has often been handed to more junior engineers. This may result in a less experienced or critical eye taken to manual review of event journals." A structured approach to this task, he continues, can provide significant savings by better targeting a site's validation and verification efforts. For example, where verification is an immediate pre-startup, critical-path activity in planned shutdowns, it's possible to shorten the duration of such events. Reduced downtime, expressed as less deferred or lost production, can be a significant benefit as well. When an unplanned shutdown of part or all of a process area occurs, the urgent action is to understand the cause and quickly see if the cause can reoccur. If, for example, it is momentary (high or low value to process variation Performance Lubricants Krytox™ lubricants will: * Ensure machinery runs quieter and wears less * Reduce rusting as well as extend equipment and component life * Protect under high loads * Prevent metal-to-metal contact Krytox™ is chemically inert; safe for use with acids, bases or other harsh chemicals and reactive gases. Nontoxic, nonflammable, oxygen compatible, thermally stable, operates at temperatures up to 800°F, low vapor pressure, low outgassing. Offers extreme pressure, anticorrosion and anti-wear properties. No silicones or hydrocarbons. Mil spec, Aerospace and Food Grades (H-1 and H-2) available. For technical information call 800.513.7251 Krytox™ Distributor Since 1991 Connecticut * Illinois * California * Canada http://mt.mschem.com Krytox™ and Krytox Logo are trademarks of The Chemours Company FC, LLC 30 | MAINTENANCE TECHNOLOGY reaching a critical point) or a latched failure (equipment-repair needed), engineers need determine the prospects or the timing of a restart-immediately following confirmation through observation and engineering conclusions, or after additional time due to other process-area effects and verifying a safe-starting point. The question, according to Millette, then becomes, "Can we check the actual cause; did everything happen as it should with the expected effects and with expected timing?" Manually checking the Sequence of Events or other related event logs might then be conducted. But that checking may not flag what is not in the log as "missing events" unless the engineer has expert knowledge of the specific sequences. Moreover, related causes, logical relationships to other effects, or sub-shutdown levels, may not show up in a manual analysis-or, at least, they'll take considerable time to discover and may require expert eyes. The ability to receive an automated analysis of how the shutdown occurred and whether all resultant elements performed as expected can provide some critical time saving and relief to detailed searches across multiple systems. Millette references a number of ways this type of automated validation, verification, and documentation directly supports the process-safety management function. Among them: ■ A stored reference cause and effect, with all relevant event signatures, timings, and relationships, acts as the documented, "as-expected" base. ■ Events captured from Level 2 control or safety system event journals form the basis of the as-is case to be validated. ■ The automated analysis then carries out the needed, sequential comparison between the set of logical relationships stored, the event signatures with those observed from the captured event journals. MT Phil Millette, P.Eng, MEI, is principal industry consultant for Honeywell Advanced Solutions, Houston, part of Honeywell Process Solutions (HPS). For more information on referenced capabilities of the company's Process Safety Analyzer (PSA), visit honeywellprocess.com. SEPTEMBER 2016 http://mt.mschem.com http://mt.mschem.com http://www.honeywellprocess.com

Table of Contents for the Digital Edition of Maintenance Technology September 2016

Editorial
Uptime
On The Floor
Old-School Approach To New-World Technology
Art Meets Reliability Science
Commit To Safety
Robot-Human Interaction Getting Safer
Sanitary, Stainless Conveyors Not The Same
Reduce Hidden Process-Safety Costs
Pace Your Reliability Program
Win The War With 'Lubrication By Design'
SAP Tips And Tricks
Understand Pump Vibration
Select The Right Relay
Bearing Care
Clear Up HOA Confusion
Potato Waste Becomes Clean Water, Energy
Products
Showcase
Ad Index
Final Thought
Maintenance Technology September 2016 - 1
Maintenance Technology September 2016 - Cover1
Maintenance Technology September 2016 - Cover2
Maintenance Technology September 2016 - 1
Maintenance Technology September 2016 - 2
Maintenance Technology September 2016 - 3
Maintenance Technology September 2016 - Editorial
Maintenance Technology September 2016 - 5
Maintenance Technology September 2016 - Uptime
Maintenance Technology September 2016 - 7
Maintenance Technology September 2016 - On The Floor
Maintenance Technology September 2016 - 9
Maintenance Technology September 2016 - Old-School Approach To New-World Technology
Maintenance Technology September 2016 - 11
Maintenance Technology September 2016 - 12
Maintenance Technology September 2016 - 13
Maintenance Technology September 2016 - 14
Maintenance Technology September 2016 - 15
Maintenance Technology September 2016 - Art Meets Reliability Science
Maintenance Technology September 2016 - 17
Maintenance Technology September 2016 - 18
Maintenance Technology September 2016 - 19
Maintenance Technology September 2016 - Commit To Safety
Maintenance Technology September 2016 - 21
Maintenance Technology September 2016 - 22
Maintenance Technology September 2016 - 23
Maintenance Technology September 2016 - Robot-Human Interaction Getting Safer
Maintenance Technology September 2016 - 25
Maintenance Technology September 2016 - Sanitary, Stainless Conveyors Not The Same
Maintenance Technology September 2016 - 27
Maintenance Technology September 2016 - 28
Maintenance Technology September 2016 - Reduce Hidden Process-Safety Costs
Maintenance Technology September 2016 - 30
Maintenance Technology September 2016 - Pace Your Reliability Program
Maintenance Technology September 2016 - 32
Maintenance Technology September 2016 - 33
Maintenance Technology September 2016 - 34
Maintenance Technology September 2016 - 35
Maintenance Technology September 2016 - Win The War With 'Lubrication By Design'
Maintenance Technology September 2016 - 37
Maintenance Technology September 2016 - 38
Maintenance Technology September 2016 - SAP Tips And Tricks
Maintenance Technology September 2016 - Understand Pump Vibration
Maintenance Technology September 2016 - Select The Right Relay
Maintenance Technology September 2016 - Bearing Care
Maintenance Technology September 2016 - 43
Maintenance Technology September 2016 - Clear Up HOA Confusion
Maintenance Technology September 2016 - Potato Waste Becomes Clean Water, Energy
Maintenance Technology September 2016 - 46
Maintenance Technology September 2016 - 47
Maintenance Technology September 2016 - 48
Maintenance Technology September 2016 - 49
Maintenance Technology September 2016 - 50
Maintenance Technology September 2016 - 51
Maintenance Technology September 2016 - 52
Maintenance Technology September 2016 - Showcase
Maintenance Technology September 2016 - Ad Index
Maintenance Technology September 2016 - 55
Maintenance Technology September 2016 - Final Thought
Maintenance Technology September 2016 - Cover3
Maintenance Technology September 2016 - Cover4
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