1. EPOCH 1000i Feature Overview Weld Overlay

2. Weld Overlay Display Feature

3. Purpose and Usage u Weld Overlay is a visualization tool that provides weld geometry for ease of indication placement. u Weld geometry information is input into the EPOCH 1000i to create a basic overlay of the weld onto a Sector or Linear Scan image. u Weld geometry information can be stored and accessed through File Recall or Weld Overlay Activation

4. u Activation – Weld Overlay can be accessed from Display Setup – Select [P4], Image Overlay Operation

5. u Activation – Arrow down to Weld Overlay and use the left/right arrows or knob to switch to ON – While highlighted on Weld Overlay, select Setup NOTE: When using Weld Overlay, turn Probe Front Cursor ON because this is where the CL Cursor, (Centerline of the weld) is measured from.

6. u Weld Overlay Setup – While highlighted on Overlay Name, select [P1], Add to create a name for the weld Operation

7. u Weld Overlay Setup – Use the knob and select [F1] to add letters and press the [CHECK] key when finished

8. u Weld Geometry – Select the Weld Type, (Single or Double V) » A weld geometry diagram for the type selected will be displayed on screen – Input parameters from top to bottom as weld data will auto adjust to conform to geometry constraints » See next slide Operation Double V WeldSingle V Weld

9. Weld Geometry – Weld Thickness (T) – Top Bevel Height (h1) – Root Gap Height (h2) – Bottom Bevel Height (h3) NOTE: The total thickness of the weld must equal the sum of the bevel and root gap heights T = h1 + h2 + h3 – Root Gap Width (w2) – Top Bevel Angle (α) – Top Bevel Width (w1) – Bottom Bevel Angle (β) – Bottom Bevel Width (w3) NOTE: Root Gap and Bevel widths are codependent on the Bevel angles inputted Double V Geometry

10. u Setup – Weld geometries that have been inputted into the instrument can be recalled by using the navigation pad to scroll through Overlay Name Operation

11. Weld Overlay Options u Rotation – Weld Overlay can be oriented at 0 ° or 180°

12. u Color of the Weld Overlay can be changed – In the Image Overlay menu, scroll down to Weld Color – Use the navigation pad or [P-Keys] to select a color from the options below – Select the [ESCAPE] key to return to the live screen Weld Overlay Options

13. Weld Overlay Colors u Colors available in Weld Overlay: – White, Black, Green, Yellow, Red, or Blue

14. u Contrast Adjustment – In the Display Setup menu, select [P5], Contrast – Use the knob to adjust contrast from 0 to 100 Weld Overlay Options

15. u Centerline Cursor [CL Cursor] – In the live screen, select the PA Cursors group and then [P6], CL Cursor – CL Cursor allows for position of the Weld Overlay to the phased array image to accurately reflect relationship between the probe and the weld – CL Cursor is measured from the Probe Front Cursor, (activated on Slide 5) Operation

16. u Scan Compatibility – Weld Overlay can be displayed over Sector and Linear Scan Imaging – Weld Overlay is also compatible with the review mode of Encoded C-Scan during Sector or Linear Scan recall Operation