1. Utilizing Advanced Eddy Current Analysis Tools 34 th Annual EPRI Steam Generator Workshop 1 © Zetec Inc. All rights reserved July 20-22, 2015 – Portland, OR Tom Bipes – Zetec

2. What are my inspection concerns today? Manpower? Complacency? Unknown new flaw mechanisms? Flaw growth/change I cannot detect? Is it OK to not use technology that is available today that answers these questions? 2 Perspective

3. Old Tools – data lookups Historic Perspective –Need to compare actual history data –Look up tubes manually –Data Segment Recall –What is change? –EPRI Guidelines on change 3

4. Advanced Tools Recent Advances –Technology changes constantly Media – entire history on one device Computers and networking Software capabilities –Automated Analysis with RevospECT ® –Historic Data Compare HDC ® 4

5. Manual Data Reviews Without HDC ® Manual process for retrieving data –Time consuming –Data setup parameters differ –Interpretation of change subjective 5

6. Without HDC ® 6 HistoryCurrentBaseline Manual Data Reviews

7. With HDC ® –Automated process for retrieving data –Efficient process –Data setup parameters unified –Interpretation of change decisive –Delta Channel shows unique difference when change occurs 7 Manual Data Reviews

8. With HDC ® 8 Baseline History Current Manual Data Reviews

9. Automated Data Comparison With RevospECT ™ –Compare current with two history datasets –Historic data interpolation –Delta Channel Difference Unique Used as Detector Channel(s) Independent or Leveraged Results Defense in Depth – Highly Sensitive to new or immerging conditions over time. 9

10. Examples Absolute channel compare for deposit loading on hot leg 1 st ISI after replacement 14 years later 17 years

11. Absolute LF channel compare for Sludge 1 st ISI after replacement 14 years later 17 years (after aggressive sludge lancing performed) Examples

12. Baseline False indication of buff mark or tube wear

13. 13 Field Indication Reported by HDC – Confirmed by X-Probe Baseline Current History Delta Change – Current to History Examples

14. Displayed with previous/current setup 14 Previous InspectionCurrent Inspection Examples

15. Seabrook OE - NQI @ 01H+ (Years-1997;2009;2012) 15 Baseline Delta History/CurrentHistory Delta Baseline/Current Examples

16. Utilization PID (Positive Identification) –Typically performed prior to tube repair True Signal Change Review –Active/Masked Degradation –Sludge/Deposit growth –Benign indication stability Unique Detector for Auto Analysis –Signal Characteristics Change 16

17. Utilization per specific site design –Resolution/Review Process –Automated Analysis Separate Results from RevospECT analyzers Integrate with RevospECT results Leverage with bobbin and X-Probe results Reduce manual reviews Eliminate subjectivity 17 Implementation

18. Utilized in various production modes –Resolution Process (Auto/Manual) –Review Process (Single Pass) –Independent Review (IQDA) Ensures determination of signal change Reports change regardless of specific reporting criteria (ETSS) 18 Implementation Today!

19. 19 © Zetec Inc. All rights reserved Please visit the Zetec Suite for a Personal Demo!