Sonatest Sitescan 250 User Manual
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Sonatest Sitescan 250 User Manual

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Manual Sonatest 250s
Sitescan 250
User's Guide
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  • Page 1 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide http://slidepdf.com/reader/full/manual-sonatest-250s 1/110...
  • Page 2 7/31/2019 Manual Sonatest 250s http://slidepdf.com/reader/full/manual-sonatest-250s 2/110...
  • Page 3 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of Sonatest Limited. Sonatest Limited Sonatest Inc.

  • Page 4: Table Of Contents

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Contents Contents How to Use This User’s Guide ..................Typographical Conventions .................. Disclaimers and Notices....................Specific Warnings ....................General Warnings ....................Operator Training....................Testing Limitations ....................
  • Page 5 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Contents 4.4.7 AWS Menu....................... 4.4.8 API Menu......................UTIL Menu......................4.5.1 UTIL Menu...................... 4.5.2 VIDEO Menu....................4.5.3 MISC Menu ..................... 4.5.4 AGC (Automatic Gain Control) ...
  • Page 6 Interface Connections..................... RS232........................Composite Video ....................Proportional Outputs ..................Synchronisation Outputs..................Features of the Sitescan 250 ................... Functional Testing Methods................10 Specifications........................11 Warranty .......................... 12 Index ..........................Page iv http://slidepdf.com/reader/full/manual-sonatest-250s...

  • Page 7: How To Use This User's Guide

    Sitescan 250 with brief descriptions of each item. Section 5:Flaw Testinggives guidelines on performing flaw testing with examples of how to calibrate the Sitescan 250 and how to set up the unit for DAC, TCG, DGS/AV and how to use the A-Scan storage facilities. Section 6:Thickness Gauging...

  • Page 8: Specific Warnings

    7/31/2019 Manual Sonatest 250s http://slidepdf.com/reader/full/manual-sonatest-250s 8/110...

  • Page 9: Testing Limitations

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Disclaimers and Notices More specific information about operator training, qualification, certification and test specifications can be obtained from technical societies, industry groups and government agencies. 2.4 Testing Limitations In ultrasonic testing, information is obtained only from within the confines of the sound beam as it propagates into the test material.

  • Page 10: Effects Of Temperature On Calibration

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Disclaimers and Notices response. For these reasons, calibration should be performed on test blocks made of the same material as the test piece with artificial discontinuities within the range of size and depth in the material to be detected.

  • Page 11: Disclaimer Of Liability

    Sonatest Limited in connection with the use, features and qualifications of the Sitescan 250 are based on tests believed to be reliable, but the accuracy or completeness thereof is not guaranteed. Before using the product you should determine its suitability for your intended use based on your knowledge of ultrasonic testing and the characteristics of materials.

  • Page 12: Quick Start

    7/31/2019 Manual Sonatest 250s http://slidepdf.com/reader/full/manual-sonatest-250s 12/110...
  • Page 13 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Quick Start This button operates in connection with the plain grey buttons next to the parameter boxes to decrease the value or step the selection in the reverse direction. In the case of transducer...
  • Page 14 This is a momentary button with no repeat action. Corresponds to the letter “F” when using the keyboard. This button selects the help menu which overlays the display. The help menu explains how the Sitescan 250 operates with a choice of three options: Using the Sitescan 250 Description of the active menu Calibration procedure.
  • Page 15 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Quick Start The full screen button is used to toggle between showing the A-Scan on the full display and showing it with the menus and parameter boxes as shown below: Full display is useful for maximising the size of the A-Scan while performing inspections.
  • Page 16 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Quick Start Press to select the dB step value of amplifier gain as 0.1, 0.5, 1, 2, 6, 10, 14, or 20dB. The selected value is indicated at the top right-hand corner of the gain box, which is always located at the bottom right side of the screen.
  • Page 17 7/31/2019 Manual Sonatest 250s Used as acceptance of memory functions and when drawing various measurement curves Move menu Changes between Normal selection Left 4 “Soft” keys & Full screen views Changes between Normal, Freeze & Peak display of A-Scan Displays context...

  • Page 18: Flaw Detection

    Manual Sonatest 250s Sitescan 250 User’s Guide ~ Quick Start 3.2 Flaw Detection Perform the following steps to establish a basic flaw detection mode for the Sitescan 250. Units shown are in inches. For metric units, select from the menu...
  • Page 19 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Quick Start other parameters as necessary to optimize the calibration. For more in-depth features of the Sitescan 250, see F law Testing on page45. Page 13 http://slidepdf.com/reader/full/manual-sonatest-250s 19/110...

  • Page 20: Thickness Gauging

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Quick Start 3.3 Thickness Gauging Perform the following steps to establish a basic thickness-gauging mode for the Sitescan 250. Units shown are in metric. For inch units, select from the menu and...
  • Page 21 8. Calibrate the thickness readout on the selected calibration block using the procedure in A-Cal o n page79. The Sitescan 250 is now configured for basic thickness gauging. Adjust parameters as necessary to optimize the calibration. For more in-depth features of the Sitescan 250, see Thickness Gauging o n page76. Page 15 http://slidepdf.com/reader/full/manual-sonatest-250s...

  • Page 22: Sitescan 250 Memory

    Sitescan 250 User’s Guide ~ Quick Start 3.4 Sitescan 250 Memory The settings of the Sitescan 250 always remain in memory when the instrument is turned off, even if the battery pack is removed. That is, whatever the settings are just prior to turning the instrument off will be the settings in place the next time the instrument is turned on.
  • Page 23 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description Page 17 http://slidepdf.com/reader/full/manual-sonatest-250s 23/110...

  • Page 24: Detailed Menu Description

    4.1 Menu Tree This diagram represents the menu structure of the Sitescan 250; there are 4 main menu items with sub-menus below. The sub-menus are described in the following section. Page 18 http://slidepdf.com/reader/full/manual-sonatest-250s...
  • Page 25 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description When The Sitescan 250 is switched on, an information screen is displayed momentarily showing the instrument serial number and software version number while a self-test is performed as shown below: Page 19 http://slidepdf.com/reader/full/manual-sonatest-250s...

  • Page 26: Main Menu

    7/31/2019 Manual Sonatest 250s http://slidepdf.com/reader/full/manual-sonatest-250s 26/110...

  • Page 27: Cal Menu

    Sitescan 250 User’s Guide ~Detailed menu Description 4.3 CAL Menu The CAL menu is the most used menu and contains those items that allow the Sitescan 250 to be easily calibrated. For full instruction on how to perform a calibration see...

  • Page 28: Gate1 & Gate2 Menus

    Sitescan 250 User’s Guide ~ Detailed Menu Description 4.3.3 GATE1 & GATE2 Menus There are two gates available in the Sitescan 250 with slightly different options depending on the gate and the measurement mode chosen. The following describes the available settings for each gate with the differences between the gates stated.

  • Page 29: A-Cal Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description 4.3.4 A-CAL Menu This menu provides automatic calibration of sound velocity and transducer zero. Gate 1 is used to select the reference echoes. See A-Cal page79 for a full procedure.

  • Page 30: Meas Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Detailed Menu Description 4.4 MEAS Menu The menus in this section allow the various measurement techniques to be configured; these include the general measurement set-up and specialist methods such as DAC, AVG, TCG, AWS and API.
  • Page 31 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description MODE: In this mode, gate 1 functions as a thickness monitor and measures the thickness between the first signal in the gate and the second signal in the gate that reaches or exceeds the level threshold.

  • Page 32: Csc (Curved Surface Correction)

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Detailed Menu Description 4.4.2 CSC (Curved Surface Correction) This menu allows the user to configure the Curved Surface Correction (CSC) parameters. This feature is used when testing pipes and other curved surfaces. In order for the...

  • Page 33: Distance Amplitude Correction (Dac) Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description 4.4.4 Distance Amplitude Correction (DAC) Menu This menu is used to create DAC curves using a series of reference echoes. Once drawn, the DAC curve acts as an alarm threshold level for the gate where the level varies to match the attenuation and field characteristics of the transducer and test material combination.

  • Page 34: Dgs/Avg

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Detailed Menu Description 4.4.5 DGS/AVG This menu is used to create a DGS/AVG curve that allows flaw sizing and distance compensation without requiring the reference standards that would be required for establishing a DAC curve or to set up a TCG correction.

  • Page 35: Tcg Time Corrected Gain Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description CURSOR Select than use the keys to move the selection over the echo and press . The Sitescan 250 will calculate the sensitivity and draw the curve on the screen MODE: ON Mode in which DGS/AVG is on.

  • Page 36: Aws Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Detailed Menu Description 4.4.7 AWS Menu This menu is used when performing weld inspection in accordance with the American Welding Society’s Structural Welding Code, ANSI/AWS D1.1-94. It provides a convenient method to automatically calculate the Indication Rating as defined in the code. The AWS...

  • Page 37: Api Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description 4.4.8 API Menu This menu is used to assist users in performing tests according to the American Petroleum Institute (API) Recommended Practice for Ultrasonic Evaluation of Pipe Imperfections using the Amplitude Distance Differential Method (ADDM). Users are referred to the publication: “API Recommended Practice 5UE, Second Edition, June 2005”...

  • Page 38: Util Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Detailed Menu Description 4.5 UTIL Menu Press the button followed by the plain gray button next to to select these jbkr UTIL menu options. The items in this section allow the user to configure features such as units, display preferences, language, back wall echo attenuation (BEA), print options, proportional output configuration and date and time settings.
  • Page 39 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description 4.5.3 MISC Menu LANG Selects one of 6 built in languages or a user selectable language. The built in languages are selectable at time of ordering the Sitescan 250.

  • Page 40: Agc (Automatic Gain Control)

    NOTES: When the Sitescan 250 is switched on the AGC is turned OFF. • • The gain value that is last set by AGC remains when AGC is switched off.

  • Page 41: Print Menu

    4.5.5 PRINT Menu This menu allows printing of information to a suitable USB printer connected to the USB port on the Sitescan 250. Please note that this requires a printer with a USB port from the Sonatest certified list of printers.

  • Page 42: P_O/P Proportional Output Control Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Detailed Menu Description 4.5.6 P_O/P Proportional Output Control Menu This menu controls the analogue and digital proportional outputs. Two outputs are provided. The outputs are active when the associated gate is triggered and are updated at the PRF.

  • Page 43: Memory Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description 4.6 MEMORY Menu Press the button then the plain grey button next to the option to access jbkr MEMORY the Memory menu. These menus allow the user to save panel settings, A-Scans and thicknesses as well as recalling an A-Scan to be used as a reference.

  • Page 44: A-Log Memory Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Detailed Menu Description 4.6.2 A-LOG Memory Menu This menu provides storage and recall of up to 800 A-Scans with settings. The use of this feature is described fully in A-LOG, A-Scan Storage...

  • Page 45: Ref Menu

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description 4.6.3 REF Menu This menu allows a waveform stored in A-LOG memory to be displayed as a reference on the display. Before a waveform can be recalled, it must be stored in an A-LOG location as described above.

  • Page 46: T-Log Menu Sequential Mode

    Readings are stored by block (1-14) and location (1-8000) number combination only. In this mode location and historical thickness data can be downloaded to the Sitescan 250 from a computer, a fixed series of four notes can be added to a location. This feature is described fully in T-LOG Thickness Storage (Sequential &...

  • Page 47: Storage & Recall Of Calibration Setups

    Although the last panel settings are “remembered” by the Sitescan 250’ memory, this feature is useful when the instrument is being used for many different tests requiring substantially different panel calibration settings.
  • Page 48 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Detailed Menu Description When a panel calibration or waveform is to be stored, first calibrate the instrument as desired, or capture the waveform by pressing the button. Then select the EDIT box in the menu and notice that the window shown below overlays the display area.

  • Page 49: Edit Notes Summary

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Detailed menu Description NOTE: When notes are displayed, the menu cursor buttons are disabled. Exit the Notes window to change to another menu. The following shows a completed notes window: 4.7.5 Edit Notes Summary...
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  • Page 51: Flaw Testing

    Fabricated discontinuities must also be placed near the front and back surface of the calibration block to verify resolution of the transducer and instrument setting combination. Finally, it is necessary to establish the proper calibration of the Sitescan 250 in order to assure reliable flaw detection. Page 45 http://slidepdf.com/reader/full/manual-sonatest-250s...

  • Page 52: Flaw Testing Calibration

    The essence of this calibration is to set the pulser, amplifier and gate parameters to provide the necessary sensitivity and resolution. The Sitescan 250 has an automatic calibration technique that sets the necessary parameters by using a calibration block that has known thicknesses;...
  • Page 53 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Flaw Testing 10. The distance between the echoes is shown in the G-G measurement at the bottom of the display (in this case 125.54). It is unlikely that the value will be exactly correct as the velocity of sound in the material will not match one of the preset values.
  • Page 54 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing 13. The distance measurement is shown at the bottom of the display (in this case 151.04). From the menu adjust the value until the correct distance is shown as...
  • Page 55 7/31/2019 Manual Sonatest 250s http://slidepdf.com/reader/full/manual-sonatest-250s 55/110...

  • Page 56: Dac Operation

    To establish a DAC curve, follow the following instructions: 1. Establish the basic calibration of the Sitescan 250 using the desired transducer and the proper reference block. From the menu, select the feature.
  • Page 57 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Flaw Testing 4. The DAC system is now ready to accept reference points. Position the transducer to give a maximum echo from the first or topmost reference hole in the reference block.
  • Page 58 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing reference curve in dB. Note that the relative dB display is dependent on the REF gain setting, but not the setting. GAIN With split DAC mode active, if the reference echoes drop below 20 %FSH another DAC curve will be generated at that point boosting the gain by 12dB each time, for up to 3 split DAC curves.

  • Page 59: Tcg Operation

    To establish a TCG curve, follow the following instructions: 1. Establish the basic calibration of the Sitescan 250 using the desired transducer and the proper reference block. 2. From the menu, select the feature.
  • Page 60 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing 7. Repeat steps 5 and 6 for each additional reference hole in the reference block, being careful to be consistent with the amount of coupling and transducer pressure. A maximum of 10 points can be recorded for a TCG curve.

  • Page 61: Weld Inspection Using Trigonometry Mode

    The trigonometry mode provides a convenient method for measuring the location of discontinuities when inspecting welds with angle beam transducers. Essentially, the trigonometry mode uses the thickness gauging features of the Sitescan 250 to calculate the surface distance and depth to a discontinuity from the actual beam path measured. This is accomplished by calibrating the trig mode with the actual refracted angle of the transducer being used.
  • Page 62 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing discontinuity if the user properly calibrates the Sitescan 250 and uses care to locate the desired peak amplitude signal to which a measurement is made. To calibrate and use the trigonometry mode, follow the following instructions: 1.

  • Page 63: Weld Inspection Using The Aws Menu

    DAC or TCG switched on. To set up the AWS measurements, perform the following: 1. Calibrate the Sitescan 250 for weld testing and set up the trigonometry mode by following the steps in WeldInspection Using Trigonometry Mode on page55.
  • Page 64 It is not necessary to bring the indication to the reference level to obtain the correct measurement information as the Sitescan 250 adjusts for gain offset. However, to ensure the best accuracy of calculation, it is advised to adjust the indication to be above 40% and below 100% of full screen height.

  • Page 65: Evaluation Of Pipe Imperfections Using Api 5Ue

    Sitescan 250 User’s Guide ~Flaw Testing 5.7 Evaluation of Pipe Imperfections using API 5UE The Sitescan 250 is able to assist the user in making measurements in accordance with the American Petroleum Institute (API) Recommended Practice for Ultrasonic Evaluation of P Imperfections using the Amplitude Distance Differential Method (ADDM).
  • Page 66 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing The Sitescan 250 automatically goes into mode. Pressing the button again FREEZE puts the API facility into measurement mode as shown below. The k value is displayed but cannot be changed while in measurement mode.
  • Page 67 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Flaw Testing Once the measurement has been made, pressing the button clears the current reading. To take the next measurement select peak mode by pressing the button twice. Page 61 http://slidepdf.com/reader/full/manual-sonatest-250s 67/110...

  • Page 68: Dgs/Avg Operation

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing 5.8 DGS/AVG Operation The DGS (Distance Gain Size) method, often known by its German acronym AVG (Amplituden Vergleichs Größe), allows a theoretical model to be used for assessment of ultrasonic echoes.

  • Page 69: Dgs/Avg Frequency, Nfl And Ers

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Flaw Testing λ − λ Where is the probe effective diameter and is the wavelength (Velocity/Frequency) The echo height from a small (much less than sound field width) reflector will be proportional to its size.

  • Page 70: Dgs/Avg Dvk, Delay

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing Desired test sensitivity ( ) may also be set now. (This can be adjusted later) 5.8.3 DGS/AVG dVK, Delay MODE SET PRB ) – Curvature Correction Factor in dB Δ...

  • Page 71: Dgs/Avg T-Loss, Ref Db And Mat Db

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Flaw Testing 5.8.4 DGS/AVG T-Loss, Ref dB and Mat dB Change MODE to ‘SET ATT’. This menu allows the operator to enter attenuation paramete relating to the materials of the Calibration Block and the item under test, these parameters being: –...

  • Page 72: Dgs/Avg ~ Tbvel, Ref Type And Refsize

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing 5.8.5 DGS/AVG ~ TBVEL, REF TYPE and REFSIZE Change MODE SET REF – Reference (Calibration) Block Velocity, in meters per second TBVEL Reference (Calibration) Block Velocity, in meters per second. This parameter is used internally.
  • Page 73 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Flaw Testing – Reference Reflector Size, diameter in mm REFSIZ Allows the user to enter a diameter, in mm, for a reflector. The reflector type is set using parameter above. REF TYPE The set will automatically compensate for the varying ‘reflectivity’...

  • Page 74: Adjustment

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing The instrument will adjust gain as necessary to get a good echo reference and then perform the necessary sensitivity calculation; the curve will then be drawn. DGS/AVG is now on. In this screen it is possible to adjust the curve ERS level (the instrument will redraw the curve, but a new calibration is not required) and select either the Curve or Gate as the measurement reference.
  • Page 75 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Flaw Testing Gain may be adjusted with understanding – Changing the Gain setting will remove the correlation with the DGS/AVG curve, so should only be done in accordance with a specification , for example to compensate for varying material conditions (better done with the T-LOSS function).

  • Page 76: Measurement

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing Decreasing Gain by 6dB returns to original height, but loses measurement. The Reference gain may be selected by pressing the Button. (DGS/AVG is only obcLd^fk appropriate for Single probe mode) When the Display Range or REF Gain is changed the DGS/AVG curve will recalculate at each step.

  • Page 77: A-Log, A-Scan Storage

    Be sure to use the same transducer that was used for the original recording. 5.9.1 To Store An A-Scan: 1. Establish the basic calibration of the Sitescan 250 using the desired transducer and the proper reference block. 2. From the...

  • Page 78: To Recall An A-Scan

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Flaw Testing 6. Press the button to store the waveform and instrument settings; the display will show a dialogue box: At the prompt, press the button again to store the A-Scan or press the CONFIRM button to continue without storing the A-Scan.

  • Page 79: To Delete A Stored A-Scan

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Flaw Testing press the button to recall it. To remove the notes review window, set the MODE back to STORE RECALL DELETE 5.9.3 To Delete a Stored A-Scan Follow the steps above but set the...

  • Page 80: Peak Echo & Hold Dynamics

    Sitescan 250 operate more like an older analogue flaw detector. Only the trailing edge is modified so that depth measurements using FLANK and PEAK are not effected.
  • Page 81 This is a quick and useful to way t make comparisons between echoes. Hold mode can be activated by pressing the button three times. Pressing the button again will return the Sitescan 250 to its normal mode of operation. Page 75 http://slidepdf.com/reader/full/manual-sonatest-250s 81/110...

  • Page 82: Thickness Gauging

    This will allow for verification of the calibration. It is possible to calibrate the Sitescan 250 using a generic test block and only one known sample thickness of the material under inspection. This is a less desirable method because there is no way of verifying the calibration.
  • Page 83 This established the sound velocity for the test material. Finally, it is necessary to establish the proper calibration of the Sitescan 250 in order to assure accurate and reliable thickness testing. The essence of this calibration is to set the pulser and amplifier characteristics to provide sharp leading edges on the echoes.
  • Page 84 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Thickness Gauging 12. To calibrate the Sitescan 250 for thickness readings, follow the steps outlined in A-Cal on page79. Alternately, you can use an iterative process from the menu of setting...

  • Page 85: A-Cal

    The A-CAL feature automates this process so that only two readings are required, one on th thin sample and one on the thick sample. The Sitescan 250 then calculates the correct offset and span factors and sets the velocity and zero. Any time the test material is changed (velocity) or the transducer is changed (zero);...

  • Page 86: Tcg For Reliable Gauging

    Note that this is a convenient method for determining the velocity of sound in an unknown material. Once the Sitescan 250 is calibrated on a known material, all that needs to be known is one fixed thickness point and the velocity can be determined.

  • Page 87: T-Log Thickness Storage (Numeric)

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Thickness Gauging 6.4 T-LOG Thickness Storage (Numeric) The T-LOG menu provides a convenient method to store thickness readings for record keeping and analysis. The maximum number of readings that can be stored is 8,000. Whe...
  • Page 88 32 characters. The text strings of 32 characters are subsequently displayed on the Sitescan 250 as two lines of 16 characters each in a table at the bottom of the screen, when the Sitescan 250 is in the Sequence mode. Generally, the first 16 characters are used to identify the location so as to direct the operator to the proper point for a thickness reading.
  • Page 89 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Thickness Gauging 6. To attach one of the four available notes with the reading, press the plain grey select button next to the option, and using the buttons, select NOTES OBSTRC (obstruction),...

  • Page 90: T-Log Thickness Storage (Sequential & Download)

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Thickness Gauging 6.6 T-Log Editing and Printing The T-LOG menu provides capability for the deletion of thickness reading stored with the T- LOG feature. With the T-LOG mode set to , it is possible delete a single location, DELETE all locations within a block, or all blocks (all readings).

  • Page 91: To Print Thickness Logs

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~Thickness Gauging 3. Set the Block number to by pressing the plain grey button next to the BLOCK parameter and using the button if not already selected. The location number will be automatically set to 4.

  • Page 92: Power Supply

    7 Power Supply The Sitescan 250 is powered by a Lithium-Ion battery pack, which is shown below. The battery pack attaches to the rear of the Sitescan 250 with two thumbscrews and connects to the instrument via two terminal contact points.
  • Page 93 Please note that the specified temperature range of the battery may exceed that of the Sitescan 250 In such cases, the Sitescan 250 may not work properly because it is out of its operating temperature range.

  • Page 94: Battery Charging

    10 (the default) or for 9 hours with a brightness of 20. The battery pack can be charged while mounted to the Sitescan 250 by use of the connector on the front panel. Alternately, the battery pack can be charged separate from the Sitescan 250 by using its own connector shown above allowing continued operation of the Sitescan 250 with the use of multiple battery packs.
  • Page 95 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Power Supply WARNING – The CH700 is a battery charger only. Any attempt to use it to power a Sitescan 250, without a battery fitted, WILL damage your CH700-P battery charger. Page 89 http://slidepdf.com/reader/full/manual-sonatest-250s...

  • Page 96: Interface Connections

    Sitescan 250 User’s Guide ~ Interface Connections 8 Interface Connections There is a 6-pin connector on the front of the Sitescan 250 as shown below: This connector is used to connect the flaw detector to a PC using a modified USB cable; this allows information to be transferred to the computer using Sonatest’s program SDMS.

  • Page 97: Rs232

    7/31/2019 Manual Sonatest 250s http://slidepdf.com/reader/full/manual-sonatest-250s 97/110...

  • Page 98: Composite Video

    Sitescan 250 User’s Guide ~ Interface Connections 8.2 Composite Video The composite video output is for connecting the Sitescan 250 to a compatible video monitor or projector. The output is either NTSC (USA/Japan) or PAL (UK/Europe), depending on the VIDEO selection in the UTIL menu. The screen update rate is 50Hz in PAL and 60Hz in NTSC.

  • Page 99: Features Of The Sitescan 250

    Sitescan 250 User’s Guide ~ Features of the Sitescan 250 9 Features of the Sitescan 250 The Sitescan 250 is a user-friendly ultrasonic digital flaw detector and thickness gauge, which is simple to use and provides the experienced ultrasonic operator with a full-function device that incorporates many productivity enhancing features.

  • Page 100: Specifications

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Specifications 10 Specifications Feature Details Test Range 0 - 5mm (0.2in) up to 0 – 10,000 mm (400 in.) at steel velocity. Variable in 1mm &10mm steps Velocity 1,000 to 9,999m/s continuously variable.
  • Page 101 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Specifications Feature Details amplitude variable from 0 to 100% FSH. Bar presentation. Positive or negative triggering for each gate with audible and visual alarms. Gate Expansion Expands range to width of Gate 1.
  • Page 102 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Specifications Feature Details DAC defined by up to 10 points and digitally drawn on screen. DAC curves meet requirements of EN 1714, JIS and ASME standards, selectable between -2, -6, -10, -12 and -14dB. Amplitude read out selectable between % DAC or relative dB.
  • Page 103 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Specifications Feature Details readings and waveform memories. Composite video, PAL or NTSC compatibility. Analogue proportional outputs programmable to distance or amplitude of signal in the gate. Transmitter sync output Front USB For connection to printers, keyboards and PC.

  • Page 104: Warranty

    Sonatest. Sonatest will make good by repair or by the supply of a replacement or by equivalent adjustment of the price at our sole option, any defects which under proper use appear in...

  • Page 105: Index

    7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Index 12 Index BEA(Backwall Echo Attenuator) · 32 Beam · 3, 7, 25, 45, 49, 50, 53, 55, 56, 57, 62, 74, 76, 93, 95 Beam Path Distance · 25, 55 A-CAL Menu ·...
  • Page 106 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Index Controls · 1, 6, 17, 32, 36 Convex · 26 Corrosion · 76 Echo Dynamic · 7, 60, 74 Couplant · 4 Edit Notes · 43, 73 Coupling · 4, 28, 51, 53, 54, 65, 74 Summary ·...
  • Page 107 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Index Gain · 9, 10, 29, 34, 46, 52, 53, 54, 57, Main Menu · 20 58, 62, 63, 64, 68, 69, 70, 77, 94, 95, Main Menu Selection · 20 MEAS ·...
  • Page 108 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Index Operator Training · 2, 3 Orientation · 3, 45 Outputs · 36, 92, 96 Range · 4, 12, 14, 21, 22, 34, 46, 50, 53, 54, 56, 62, 66, 68, 69, 70, 73, 76, 77, 79, 80, 87, 88, 94, 95, 96 Recall ·...
  • Page 109 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Index Sound Velocity · 3, 4, 23, 45, 76, 77, 93 T-Min · 95 Specific Warnings · 2 Training · 2 Specifications · 3, 94 Transducer (Probe) Zero Procedure · 3 split screen ·...
  • Page 110 7/31/2019 Manual Sonatest 250s Sitescan 250 User’s Guide ~ Index Weld Inspection Using Trigonometry Mode · 45, 49, 55, 57 Width · 2, 21, 22, 25, 27, 63, 74, 80, 94, Warranty · 98 Wave · 2, 21, 59, 64, 70, 93, 94 Wavelength ·...

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