OmniScan MX2 Training ProgramManual Inspection Preparation That process is explained in the recording defects section relative to the indication table and report. Again. but the flaw length (Scan axis) is performed manually and marked directly on the component. prior to preparing the inspection parameters the phased array group wizards. In a manual inspection there is no direct relationship between the data and the probe position or indication unless it is specifically entered by the operator after a flaw is found. The next series of slides explain the various parameters that are typically required for a manual inspection where an encoder or scanner is not being used. any required calibrations.Overview This section assumes that the group wizard. and UT settings should have already been completed as described in earlier sections. In a manual inspection depth and height sizing (UT axis) are completed using the tools in the software.MX2 Training Program – Manual Inspection . and UT settings have been configured and are ready for the inspection. 2 . calibrations. This series of tasks is necessary to prepare the MX2 for a manual inspection. (Probe\Part>Parts>Thickness) Set gate position and mode. (UT>Advanced>Reference>On) Set part thickness. 1. 9. (Gate\Alarm>Gate>Position) Select display layout for data views. 4. (File>Data Settings>Data Settings) Name and save Ops file. (Measurement>Reading>Measurement Mode) Select indoor\outdoor display scheme. Set UT reference gain. 5. 6. 3.MX2 Training Program – Manual Inspection – Checklist A manual inspection is an inspection where the probe is manipulated by hand and does not include use of an encoder or scanner. The probe position has no directly reference to the data until entered by the operator after an indication is detected. (Display>Layout>A-S-[C] or as desired) Configure scan mode. (Index axis or probe offset) The below parameters were explained in earlier sections and are summarized again in the below list. (Preferences>Instrument>Screen) Configure file data settings. 8. (Display>View Settings>Category C-scan>Source 1 or 2) Configure display readings. 7. 3 . 10. (Scan>Inspection>Scan>Time) Configure C-scan if used. 2. The gain applied to all focal laws in the group is general gain + adjustment gain (19. (UT>Advanced>Reference>On) When the reference is set to on.5dB + 6.MX2 Training Program – Manual Inspection – Set UT Reference Set UT reference to on.0dB below) This feature allows the operator an easy way to increase and decrease dB for manual scanning without losing the reference sensitivity for amplitude associated readings. 4 . the general gain is fixed and an adjustment gain appears to the right of the gain value (6dB below). The reference sensitivity is the level recorded on the calibration block at which flaws are evaluated for a accept\reject decision. (Depth of the signal in gate A) 5 . etc. The part thickness parameter is only relative to the display skip lines (B0.) and the trigonometry readings such as DA. Set the part thickness in Probe\Part>Parts>Thickness. B2. T1.MX2 Training Program – Manual Inspection – Set Part Thickness The part thickness was entered during the group set up wizard process and may have been changed to facilitate calibration. Ensure that the complete area of interest within the weld or component is covered by the desired gate.MX2 Training Program – Manual Inspection – Set Gate Position After the initial group set up. evaluation of signals outside the area of interest for the inspection. the gates were most likely repositioned during the calibration processes and must be repositioned for the inspection. or both. 6 . The C-scan data is generated from the gate data only and improper gate placement will result in missed flaws. The most common for weld inspection is the A-S-C layout for both single probe and multiple probe inspections. 7 . A-C-C. etc) Layouts are available in different options for single group and multiple group configurations.MX2 Training Program – Manual Inspection – Set Data View Layout The layout is the preconfigured arrangement of multiple data views. (A-S-C. Select >Scan>Inspection>Scan>Time. These are the default values for the MX2 and should not require modification until an encoder or scanner is configured. 8 . the instrument PRF is fixed at 60 Hz until manually changed by the operator or reduced by the software when a condition is changed such as addition of more groups and focal laws.MX2 Training Program – Manual Inspection – Set Time Scan For a manual inspection not using an encoder or scanner. Select >Scan>Inspection>Type>One line scan. When the inspection is set to time as in the previous slide. (A-S-[C]) Clock C-scan acquisition for shear wave tip diffraction depth\height sizing C-scan moves with the clock. not encoder 9 . especially where no weld crown and root geometry is present in the data. This is only available when the selected layout contains a [C] for C-scan. the C-scan is updated at the speed of the PRF and has no value for length sizing but much value for detection and depth\height sizing in some applications.MX2 Training Program – Manual Inspection – Configure Time C-scan Although the C-scan is not useful for length sizing without use of an encoder it can be extremely useful for detection of defects in some applications. select Display>Selection>Show C-scan>On. Turn on the C-scan. Time 10 .MX2 Training Program – Manual inspection – Configure C-scan cont. and crossing position (I/). amplitude gate B (B%). amplitude gate I (I%). the C-scan option of A% is displayed. Besides an amplitude C-scan for gate A. After turning on the C-scan in the display menu. This is the default C-scan and it can be changed in Display>View Settings>Category C-scan>Source 1 or 2. other C-scan options include a position Cscan (Thickness). This will directly affect the file size and because an encoder is not used the data is not related to position but used only as a means to store waveforms. Selecting the Start Inspection button will reset the C-scan and clear all data cached in memory. The size or length of the C-scan can be manipulated by changing in the start and end in Scan>Area sub menu.MX2 Training Program – Manual inspection – Configure C-scan cont. Time 11 . The speed at which the C-scan updates can be manipulated by changing the scan resolution in Scan>Area>Scan Resolution. Select Measurement>Readings>Measurement Mode and select the list for the desired application. trigonometry.MX2 Training Program – Manual Inspection – Configure Readings The MX2 displays two lists of four readings each that are visible at all times when not in full screen mode and used for amplitude. The readings are available in pre-configured lists based on application and can also be selected individually. and position data. (MX2 default is manual weld) Application Groups Pre-configured Readings 12 . These eight readings will appear on the report. Battery life can also be extended by reducing the screen brightness when possible. 13 .MX2 Training Program – Manual Inspection – Select Display Scheme If working outdoors or in bright light environments it may be advantageous to change the display to the outdoor scheme. Change the display if necessary in Preferences>Instrument>Category>Screen>Scheme>Outdoor. MM. data003. The fastest saving option is use of the micro flash USB memory installed in the USB 2. 14 .0 port. The default storage location is the storage card that also contains the system software. If a USB flash memory is installed it will appear in the available storage options in File>Data Settings>Storage.SS) The type of data file that is created when selecting the save data button is selected in File>Data Settings>Save Key.MX2 Training Program – Manual Inspection – File Data Settings Data file settings determine the type of data and the file name format when the save data button is selected. Additionally. Create a file name for the data file that will be saved from the inspection. data002. The data file can be configured to save both the A-scan and C-scan data or only the C-scan data in File>Data Settings>Data Selection. (Example: Data### becomes data001. (YYYY-MM-DD) %T Represents the time in the international format. Any compatible windows file name can be entered. (HH. a date. The system default and typical option is data. – – – # Represents an automatically incremented number. and so on) %D Represents the data in the international format. (This is not the setup file). use of the following characters will allow incremental numbers. and or the time to be automatically generated with the file name. MX2 Training Program – Manual Inspection – Save .Ops file) by selecting File>Setup>Save As and enter a logical name. Creating the file name relative to the probe\wedge\application or with a procedural naming scheme is highly recommended. 15 .Ops file Prior to starting the inspection save your current setup file (. lnk .Free Download Manager.
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