ULTRASONIC FLAW DETECTOR А1220 MONOLITH OPERATION MANUAL. Acoustic Control Systems, Ltd. Moscow 2015

Transcription

1 ULTRASONIC FLAW DETECTOR А1220 MONOLITH OPERATION MANUAL ` Acoustic Control Systems, Ltd. Moscow 2015

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3 TABLE OF CONTENT 1 DESCRIPTION AND OPERATION Purpose Technical characteristics Construction and operation INTENDED USE Operating limitations Preparation of the device for use OPERATING MODES OF THE DEVICE ADJUSTMENT mode A-SCAN mode (Echo method) A-SCAN mode (Through method) MAP mode STOP mode Work with previously saved frames MAINTENANCE Power supply and power consumption Maintenance frequency Potential problems Storage TRANSPORTATION APPENDIX A (referential) Recommended ultrasonic inspection literature

4 This operation manual (hereinafter referred to as the manual) contains technical characteristics, description of the device and its operating principle as well as data necessary for correct work of an ultrasonic flaw detector А1220 MONOLITH (hereinafter referred to as the flaw detector or device). Before operation of the device, read this manual carefully. Only personnel that knows general principles of the theory of ultrasonic vibrations distribution, has undergone training course and read the operation documentation is allowed to operate the device. To carry out ultrasonic control correctly, it is necessary to determine control objectives, choose control schemes, select transducers, assess control conditions for such materials etc. Constant work of the manufacturer directed at improvement of possibilities, increase in reliability and comfort of operation may result in some non-principal changes, not represented in this manual issue and not deteriorating technical characteristics of the device. Manufacturer: Acoustic Control Systems Ltd (ACS Ltd) Zagorievskaya str. 10, bldg. 4, Moscow, , Russian Federation Telephone/fax: +7 (495) (multiline) Website: 4

5 1 DESCRIPTION AND OPERATION 1.1 Purpose Scope of application Flaw detector А1220 MONOLITH is a manual ultrasonic device of general purpose of a portable type. The flaw detector is intended to search foreign inclusions, cavities and cracks in products and constructions made of reinforced concrete, stone, plastics and similar materials in case of one-sided access to a control object, measurement of the thickness of concrete products, examination of internal structure of coarse materials Operation conditions The device is intended for operation under the following ambient conditions: Temperature from minus 30 to plus 55 C; Relative air humidity up to 95% at maximal temperature plus 35 C. 1.2 Technical characteristics Main parameters of the device Main parameters of the device are given in Table 1. T a b l e 1 Parameter name Value Thickness measurement range at the ultrasonic sound speed 2500 m/s (concrete), mm from 100 to 2150 Limits of permissible absolute error of thickness measurement at the ultrasonic sound speed 2500 m/s (concrete), mm, no more than, where ±(0.1 X+5.0) X is a measured thickness in mm Measurement range of the defect occurrence depth at the ultrasonic sound speed 2500 m/s (concrete), mm from 100 to 2150 Limits of permissible absolute error of measurement of the defect occurrence depth at the ultrasonic sound speed 2500 m/s (concrete), ±(0.1 X+5.0) mm, no more than, where X is a measured thickness in mm Range of set ultrasonic sound speed, m/s from 500 to Rectangular, Form of generator pulse meander, 0.5 to 5.0 periods Operating frequency of transducers, khz from 25 to 250 Tuning range of calibrated amplifiers, db from 0 to 100 Number of average received signals 1; 2; 4; 8; 16; 32; 64; 128 Number of programmable points of time corrected gain characteristics 32 Adjustment limits of seep delay, µs from 0 to 100 Power supply Accumulator Rated voltage of accumulator, V 11.2 Period of continuous operation time from an accumulator under normal 8 5

6 Parameter name Value climate conditions, h, no more than Battery charging time, h 3 Overall dimensions of electronic unit, mm Mass of electronic unit, kg, no more than 0.8 Mean time between failures, h Mean service life, years, no less than Construction and operation Construction of the device Construction of the flaw detector includes an electronic unit with a built-in accumulator, to which a matrix antenna array is connected via cables, operating according to the principle of dual element transducer (Figure 1) or ultrasonic piezoelectric transducers with dry point or liquid contact (not included in the scope of delivery) Electronic unit Figure 1 The electronic unit forms the electronic pulses, which actuate the matrix antenna array or piezoelectric transducer, amplifies the received from piezoelectric transducers signals; their 6

7 processing and visualization, formation and representation of measurement results in a digital form, saves data to non-volatile memory; transmits data to an external PC. The device is controlled with a membrane keyboard. Indication of signals, measurement results, the device state is performed on the display and by LED indicators on the device body. The matrix antenna array or piezoelectric transducer are connected via coaxial cables (included in the scope of delivery) through LEMO connectors which are located in the upper end of the body. Power to the device is supplied from the built-in accumulator or power adapter (included in the scope of delivery) connected to the connector in the bottom end of the body. There is also USB Micro B connector, which is intended for connection of USB communication cable with a personal computer (PC), in the bottom end of the body. Both connectors are closed with plugs. ATTENTION: SIMULTANEOUS CHARGING OF THE DEVICE AND ITS CONNECTION TO A PC IS FORBIDDEN! Power adapter To provide power supply to the device from external power sources and from the accumulator charge, the adapter of power from AC network (15 V) is used. Depending on the discharge degree, the accumulator charging may last up to 3 hours. In the process of charging, the flaw detector may fulfill its functions in full. To avoid damage of the device, you should connect the power adapter cable to the electronic unit at first, connect the network cable to the power adapter and then connect the network cable to the network Antenna array The scope of delivery includes the antenna array M A0R100X60PS manufactured by ACS ltd. M A0R100X60PS is a cophased antenna array with a dry point contact with group switching of elements operating at transverse ultrasonic waves. The antenna array is connected via a dual cable LEMO-LEMO. The connector marked with a red point serves for connection of a sending piezoelectric element, non-marked one a receiving element (Figure 2). Red Basic principles of interface Figure 2 7

8 Intuitive interface variant is used in the device. Associative menus of pictograms in various modes, names and schematic designation of buttons allow to learn easily and quickly how to work with the device. Data displaying always includes information necessary for operation monitoring. Configuration library may significantly facilitate work with the device. A user may assign a unique name to every configuration. Thus, the user may adjust the device for different conditions and control objects in advance and just choose the necessary configuration from the list on site. All settings of the device are saved after the device is switched off and when the accumulator is charged Operating modes There are two operating modes in the flaw detector: A-SCAN and MAP, STOP mode, as well auxiliary mode ADJUSTMENT. In these operating modes the device forms monitoring pulse, amplifies received echosignals, displays them and makes measurements. Switching between modes A-SCAN MAP is performed with a mode, it is necessary: button. To choose a To press the button, until the operating mode selection window opens; To choose the operating mode with (Figure 3); buttons in the open window Figure 3 To confirm the choice press the button, to canecel it press the button. A-SCAN mode is intended for formation and monitoring over temporal realization of impulse ultrasonic signals in a graphical form предназначен для формирования и наблюдения временных реализаций импульсных УЗ сигналов в графическом виде: in real time (testing method echo); with averaging of realization (testing method throgh). MAP mode is intended to form a set of images of control object sections perpendicular to the control object surface during scanning of the antenna array along the previously marked lines (rows) with a constant pitch. 8

9 STOP mode is activated with the button. STOP mode is intended to stop (freeze) realization of signals (frames) on the display in A-SCAN mode, to save them in the device memory as well to review previously saved frames. Any operating mode may be switched into ADJUSTMENT mode via the button. In ADJUSTMENT mode, settings of the device may be selected and changed. Work with the device at a new control object should be always started from this mode Display Colour TFT display with the resolution 640х480 points is used as an indicator in the device. Working space of the screen in every mode is divided into several functional areas. The screen layout in A-SCAN mode is given in Figure 4. Mode name Configuration name Current time Panel of measurement results Cursor Indicator of the accumulator charge Area of auxiliary values Marker Area of signal reflection Strobe Menu of pictograms Keyboard Figure 4 View of keyboard field of the device is given in Figure 5. 9

10 Buttons for selection of pictograms Indicator of the device state STOP button ESCAPE button Button of switching on/ off of the device Indicators of Automatic Defect Signaling actuation Block of control buttons ENTER button Button to actuate ADJUSTMENT mode Selection button Figure 5 Green LED indicator in the left top corner shows that the flaw detector is on. LED indncator located below shows charging of the accumulator. Yellow colour indicates the charging process of the accumulator, green colour indicates completion of the charging process. Two red indicators in the right top corner show that Automatic Defect Signaling is actuated for the first and the second strobes, correspondingly. The buttons are marked with symbolic designation of their primary functions. English designation of the buttons is chosen for unification of the construction and operational documentation of the device during its use in different national regions. Main functions and parameters are controlled via the buttons for selection of pictograms functional buttons (F) located under the screen, each button always has the corresponding explanatory pictogram above it. Active parameters are chosen and changed via control buttons. Their actions are similar for various operating modes of the device and meant for intuitive learning by the operator, i.e. symbols on these buttons correspond to the character of the action performed. Auto-repeat mode with acceleration is implemented for some buttons while holding a button for more than one second. Brief description of the purpose of the device buttons is given in Table 2. T a b l e 2 Button Purpose of buttons in the modes A-SCAN MAP ADJUSTMENT Switching on/off of the device. It is necessary to hold the button no less than 0.5 s 10

11 Button Purpose of buttons in the modes A-SCAN MAP ADJUSTMENT Exit from Actuation of ADJUSTMENT mode ADJUSTMENT mode Activation of operating mode selection window Cursor movement N/a Change of developed length Change of amplification value Activation of STOP mode N/a Movement of vertical cursor Movement of horizontal cursor Recording of the current A- Scan N/a N/a Change of the active parameter value Cancel Enter/exit in the mode of parameters editing Selection of parameters for editing Actuation of parameters adjustment. Actuation of memory cleaning procedure during editing of system parameters Buttons for selection of pictograms and control over their functions Use of pictograms The device interface is peculiar with associative menu of pictograms, which are arranged in six rectangular windows in the bottom part of the screen. Pictograms are symbolic images, associated with an object or a property they have control of. Each mode has its own set of pictograms. Pictograms may be in a passive or active state. The active state means that change of the device properties or parameters which correspond to an active pictogram is possible. N o t e Hereinafter the conventional numeration from 1 to 6, from the left to the right of pictogram windows and functional buttons corresponding to them is used (Figure 6). 11

12 F1 F2 F3 F4 F5 F6 Figure 6 12

13 2 INTENDED USE 2.1 Operating limitations The device is intended for operation under the ambient conditions stated in paragraph Preparation of the device for use Protective glass of the device screen is covered with a polyethylene film, preventing occurence of scratches in the process of production and transportation. Before operation, it is recommended to remove the protective film, which will increase contrast and brightness of an image on the display Switching on/off of the device Switching on To switch on the device, it is necessary to hold button, LED indicator in the left top corner of the screen lights up with green colour, the splash screen with the corporate logo ACS ltd., the device name and the number of firmware download version (Figure 7) appears. A1220 MONOLITH Ultrasonic flaw detector Version 4.03 Figure 7 Then, n 5-10 seconds, the window of the mode, which was active at the moment of the last switching off of the device, opens with the corresponding settings Switching off To switch off the device, press button. 13

14 ATTENTION: THE DEVICE SWITCHES OFF AUTOMATICALLY IN AUTOMATIC SWITCHING OFF TIME, WHICH IS SET IN THE SYSTEM SETTINGS, IF DURING THIS PERIOD NO BUTTON IS PRESSED AND MEASUREMENT IS NOT CARRIED OUT! Selection of transducer Type of the transducers used in the device is determined by the task being solved: To control with echo-methods, antenna array is used; To control with shadow methods, piezoelectric transducer with dry or liquid acoustic contact is used. Detailed recommendations on the selection of ultrasonic transducers are given in specialized methodologies, documents and other guidance materials concerning ultrasonic flaw detection of objects, listed in Appendix A. 3 OPERATING MODES OF THE DEVICE 3.1 ADJUSTMENT mode ADJUSTMENT mode is intended for adjustment and setting of the device s parameters. View of the first screen in the ADJUSTMENT mode is given in Figure 8. Figure 8 There is always an active pictogram in the menu of pictograms. Functions of pictograms in the ADJUSTMENT mode are given in Table 3. T a b l e 3 Button Pictogram Purpose 14

15 Button Pictogram Purpose F1 F2 Adjustment of parameters of OVERVIEW modes Adjustment of parameters of MAP mode F3 N/A F4 N/A F5 Delete of configuration or map F6 Selection of system settings Functions of the buttons activated during editing of the parameters are given in Table 4. T a b l e 4 Button Purpose Enter into settings editing Movement along the lines for selection of an edited parameter Change of the parameter value Exit from settings editing Exit from ADJUSTMENT mode Switching on/off of parameters. Actuation of parameters adjustment Parameters of OVERVIEW modes There is the list of configurations in the left column and parameter names and their values are given in the right part. To move to parameter value editing, press button. The view of the device screen during setting of the parameters of A-SCAN mode is given in Figure 8. Names of the parameters of A-SCAN mode and their permissible values are given in Table 5. 15

16 T a b l e 5 Parameter name Value Description Piezoelectric transducer type Operating frequency, khz Single crystal / double crystal From 25 to 250 with pitch 5 Selection of the type of piezoelectric transducer in use: Single crystal; double crystal Operating ultrasonic frequency during control Delay, mcs From 0.0 to with pitch 0.1 Signal delay time setting Amplification, db From 0 to 100 with pitch 1 Receive path amplification setting Pulse, V 20 / 100 / 200 Selection of monitoring pulse amplitude Number of periods From 0.5 to 5.0 with pitch 0.5 Defining of monitoring pulse form Number of frames, Hz From 5 to 45 with pitch 5 Selection of the frequency of information displaying Accumulation, times 1 / 2 / 4 / 8 / 16 / 32 / 64 / 128 Setting of temporary accumulation quantity Ultrasonic speed, m/s From 500 to Transmission speed of waves of the operating type in the control object Base, mm Off / from 10 to Thickness of control object Time corrected gain On/off Time corrected gain switching on setting/ switching off Scale mm / µs Selection of horizontal scale units, determining signal display parameter Discreteness of values 0.1 / 1 Selection of results display discreteness Cursor On / Off Control of measuring cursor display (vertical line, showing the place where signal parameters are measured) on the screen Filter of incoming Switching on/off of the filter of On / Off signals incoming signals Testing method Echo / Though Selection of testing method View, creation and deletion of configuration When entering ADJUSTMENT mode, the line with the configuration currently in use the current configuration is highlighted, meanwhile all the parameters of the given configuration are displayed on the right in a view mode (Figure 9). The current configuration is marked with sign. 16

17 Figure View of configuration parameters To view configuration parameters, you should move to its name with the help of buttons Selection of configuration To continue work with the use of other configuration from the list, you should move to its name with the help of buttons and press button. To return to the measurement mode with the use of the selected configuration, press Deletion of configuration To delete a saved configuration, you should press F5 ( the deletion confirming window opens (Figure 10). ) button, meanwhile Figure 10 17

18 N o t e There are always the following default basic configurations in the list of configurations: Base M2502 ; Base M2503 ; Base M2102 ; Base M2103. ATTENTION: DELETION OF BASE CONFIGURATION OR CONFIGURATION IN USE (APPLIED CONFIGURATION) IS NOT POSSIBLE! If you attempt to delete the above mentioned configurations, the corresponding message box opens (Figure 11). Figure 11 To return in the measurement mode without change of the current configuration, you should press button Creation of new configuration To create a new configuration on the basis of the existing one, you should move to the line with configuration, which will serve as a base for editing, with the help of buttons, for example, Base M2502 and turn it into the current one by pressing button. To change the values of configuration parameters, you should press of the parameters will become editable (Figure 12). button. The values 18

19 Figure 12 When the value of a configuration parameter is changed, a new line consisting of the name of the configuration being edited with addition of * symbol is automatically added in the end of the list of configuration names and becomes active. Meanwhile, the configuration taken as the basis remains unchanged. N o t e When a new configuration on the basis of a basic one is created, word Base is not used in the automatic name formation. Screen view during introduction of changes in the configuration with name Base M2502 is given in Figure

20 pressing Figure 13 After necessary changes have been made, you should exit from parameters editing by button. The left column with configuration names becomes active, there an automatically formed, temporal name of the new configuration is highlighted (Figure 14). By default, the new configuration becomes current. 20

21 Figure 14 To include a configuration in the list of saved configurations, you should assign it a name, to this effect you should press button. The window of name editing opens (Figure 15). If the name of a configuration taken as the basis ends with any sign or number without a hyphen before it, a hyphen and a sequence number are added to the name by default. If the name of a configuration taken as the basis ends with a hyphen and a number, by default its value is increased by one. Figure 15 Any name may be assigned to the configuration (Figure 16). 21

22 Figure 16 17). To save a formed name, press F1 ( ) button. The configuration under a new name appears in the list and is set as the current one (Figure Figure 17 Functions of pictograms during name editing are given in Table 6. 22

23 T a b l e 6 Button Pictogram Purpose F1 F2 F3 F4 F5 F6 Saving of a formed name Movement of a cursor in the name field to the left Movement of a cursor in the name field to the right Typing with uppercase letters Deletion of a symbol located to the left from the cursor Switching of screen-on keyboard layout (only during work with the Russian language of the interface) 23

24 Functions of the buttons used in name editing are given in Table 7. T a b l e 7 Button Purpose Movement in the keyboard field, located at the device screen parameters of MAP mode Movement of a cursor in the name field to the left / to the right Input of a symbol in the name field / performance of an action, highlighted on the keyboard field of the screen Exit from name editing in the window of ADJUSTMENT mode without saving of the name There is the list of saved maps and a line allowing to create a new map in the left column, and parameter names and their value in the right part. The view of the device screen during parameters setting in the MAP mode is given in Figure 18. Figure 18 N o t e Parameters of the existing maps are available only for viewing. When a new map is created, the parameters are taken from the current configuration with an option to edit it. 24

25 To move to editing of parameter values, you should move to the line Create a map and press button. Then, you should make the necessary changes in parameter values and press button. To create a map with pre-set parameters, while on the line Create a map, you should press button, a window of the new map name formation opens (Figure 19). Figure 19 By default, the name MAPX is assigned to a map, where X is an automatically formed next number on the basis of previously saved maps. The map may be assigned with any name. Frame name editing mode is fully analogous to the configuration name editing mode (paragraph 3.1.2). Name of MAP mode parameters and their permissible values are given in Table 8. T a b l e 8 Parameter name Value Description Pitch horizontally, mm Pitch vertically, mm Size horizontally (points) From 10 to 1000 with pitch 10 From 10 to 1000 with pitch 10 Off / from 1 to 100 Setting of horizontal scanning pitch Setting of vertical scanning pitch Setting of the size horizontally Size vertically (points) Piezoelectric transducer type Off / from 1 to 100 Single crystal / double crystal Setting of the size vertically Selection of the type of piezoelectric transducer in use: Single crystal; double crystal 25

26 Parameter name Value Description Operating frequency, khz From 25 to 250 with pitch 5 Operating ultrasonic frequency during control Delay, mcs From 0.0 to with pitch 0.1 Signal delay time setting Amplification, db From 0 to 100 with pitch 1 Receive path amplification setting Pulse, V 20/100/200 Selection of monitoring pulse amplitude Number of periods From 0.5 to 5.0 with pitch 0.5 Defining of monitoring pulse form Number of frames, Hz From 5 to 45 with pitch 5 Selection of the frequency of information displaying Accumulation, times 1 / 2 / 4 / 8 / 16 / 32 / 64 / Setting of temporary accumulation 128 quantity Ultrasonic speed, m/s From 500 to Transmission speed of waves of the operating type in the control object Base, mm Off / from 00 to Thickness of control object Time corrected gain On/off Time corrected gain switching on / switching off Scale mm / mcs Selection of horizontal scale units, determining signal display parameter Adjustment of time corrected gain To align echo-signals amplitudes from the same reflectors located at different depths, use of time corrected gain function is provided in the device. To adjust time corrected gain, it is necessary to have a control sample of the material, where the size of control reflectors (near and distant) is set Preparation for adjustment Before time corrected gain is adjusted, you should do the following in the A-SCAN mode: Set sweep in such a way, that signals from all defects in the estimated control zone are displayed; Put the strobe at the height of 50-80% of the screen; Determine the control zone with the strobe borders; Apply an antenna array to the sample and find a maximal signal from a near reflector; Set the pulse peal at the level of 50-80% of the screen Adjustment To adjust time corrected gain, you should: Enter adjustment mode; 26

27 Press F1 ( ) button; Edit the line TCG, with the buttons or switch on TCG, if it was switched off; Press the button to initiate a setting of TCG; Find the signal maximum from a near reflector (Figure 20). Place the measuring cursor on it and create a node point with the button. Figure 20 Repeat the procedure of node point creation for a distant reflector (Figure 21). Correct the vertical position of the point in such a way, that the amplitudes of signals from near and distant reflectors are at the level of the strobe. 27

28 Figure 21 If the sample has more than two control reflectors, node points for each of them should be created according to the above given algorithm. Moving the cursor with buttons along node points, correct the position of newly created node points in such a way, that amplitudes from near and distant reflectors are at the same level. To delete a node point, you should place the measuring cursor on it and press the button. To save the settings and return to the ADJUSTMENT mode, you should press the button. Screen view after exit from the ADJUSTMENT mode according to the results of the adjustment of time corrected gain is given in Figure

29 Figure 22 Functions of the buttons used for the adjustment of time corrected gain are given in Table 9. T a b l e 9 Button System settings of the device Purpose Change of the amplitude of the given point. If there is no point near the cursor, the buttons do not work Movement of the cursor Movement of the cursor to the nearest point in the corresponding direction Exit from the mode of time corrected gain adjustment Application of time corrected gain settings Addition / deletion of a point in the cursor position Activation of operating mode selection window System settings are common for all the operating modes of the device. Screen view of the device during selection of system settings of the device is given in Figure

30 Figure 23 Name of parameters and their permissible values are given in Table 10. T a b l e 10 Parameter name Value Description Firmware version X.X.X Current firmware version Current time in 24-hour format Time HH:MM HOURS:MINUTES Date Brightness, % Sound Timer of automatic switching off, min. Available memory, MB DD.MM.YY From 5 to 100 with pitch 5 Off / On 5 / 10 / 15 / 30 / 60 ХХХХ Enter in the editing mode - Current date in format DAY.MONTH.YEAR Enter in the editing mode - Setting of brightness of the device screen Switching on/off of the accompanying sound in case of Automatic Defect Signaling actuation in the device Selection of time period, after which the device switches off automatically, if during this period no button is pressed and measurement is not carried out Volume of the available memory of the device 30

31 Parameter name Value Description Delete all A-Scans, pcs. Language ХХХ Russian / English Number of saved frames is represented. Start of the device memory cleaning procedure - ATTENTION: COMPLETE CLEANING OF THE MEMORY ALL A-SCANS AND MAPS ARE DELETED! Selection of interface language of the device Functions of the buttons used for system settings editing are given in Table 11. T a b l e 11 Button Purpose Movement along the lines for selection of the parameter being edited Change of the parameter value If Time or Date parameter is selected, entry into the mode of their editing. Start of the memory cleaning procedure Exit from the ADJUSTMENT mode Editing of Time and Date parameters To edit Time or Date parameters, you should: Select the corresponding parameter and press the button; In the opened editing window (Figure 24), select a digit for editing with the use of the buttons; Correct the parameter value with the use of the or buttons; To confirm the made changes, press the button, to cancel the button. 31

32 Memory cleaning Figure 24 Start of the Memory cleaning procedure is accompanied with the warning window (Figure 25). 3.2 A-SCAN mode (Echo method) Figure 25 To set the control zone, susceptibility level, Automatic Defect Signaling actuation and measurement of defect coordinates and signal amplitudes from reflectors in the intervals of interest, a strobe is used in the device. Measurement can be carried out in an automatic as well as manual modes. Automatic mode is measurement mode when the strobe is on. The value of the point amplitude exceeding the strobe level, depending on the set actuation manner, is measured. If an echo signal gets in a time span of the strobe and signal amplitude exceeds the strobe level, the cursor is automatically positioned at the place of actuation and indication of measured parameters. In addition, the fact of exceeding of the strobe level by the signal is accompanied with a sound signal and switching on of the corresponding red LED indicator on the front panel of the device. If the signal is below the strobe, its fixation and measurement are not conducted. Manual mode is measurement mode when the strobe is off. The signal is measured by means of the cursor movement with the help of the buttons. Besides the cursor, the marker in a form of a colored triangle is displayed, which is always automatically set at the maximal value of the signal amplitude within the strobe Device screen in the A-SCAN mode (Echo method) View of the device screen in the A-SCAN mode (Echo method) is given in Figure

33 Panel of measurement results Area of auxiliary values A-Scan area Area of pictograms Figure 26 Parameters represented in the blocks Panel of measurement results and Area of auxiliary values are changed depending on the operating mode of the device At the BASE - Off parameter The following is represented in the Panel of measurement results (Figure 27): In the first block time, µs; In the second block depth, mm; In the third block amplitude, db. Figure 27 The following is represented in the area of auxiliary values: In the first block the value of ultrasonic speed set in the ADJUSTMENT mode, m/s; In the second block amplification, db; In the third block the value of accumulation, set in the ADJUSTMENT mode, or Off, if accumulation is turned off, or value of dimensioned accumulation with swithed on pictigraph F If BASE parameter is on The following is represented in the Panel of measurement results (Figure 28): In the first block speed, m/s; 33

34 In the second block depth, mm; In the third block amplitude, db. Figure 28 The following is represented in the area of auxiliary values: In the first block the value of the base set in the ADJUSTMENT mode, mm; In the second block amplification, db; In the third block the value of accumulation, set in the ADJUSTMENT mode, or Off, if accumulation is turned off A net, vertical and horizontal scale, strobe, cursor and marker are represented in the A-Scan area, besides A-Scan. The cursor and marker are automatically redrawn in case of the results update. The horizontal scale of the device is switched between microseconds and millimeters The area of pictograms is located below. Each pictogram is controlled with the corresponding button on the device panel. Main functions of the buttons and the corresponding pictograms in the A-SCAN mode: F1 control over dimensioned accumulation; F2 control over the strobe; F3 selection of Automatic Defect Signaling actuation type; F4 selection of signal reflection type; F5 switching on/off of the ZOOM mode; F6 switching on/off TCG Functions of the buttons in the A-SCAN mode Functions of the buttons used in the A-SCAN mode are given in Table 12. T a b l e 12 Button Function Switching on/off of the device Movement of the measurement cursor Up/down change of attenuator value To the right/to the left change of developed length Enter into the STOP mode F1 F6 editing of the corresponding parameter 34

35 3.2.2 Functions of controlling pictograms F1 (dimensioned accumulation) Enter into the ADJUSTMENT mode - dimensioned accumulation is off; - dimensioned accumulation is on. Note After switching on of dimensioned accumulation, temporary accumulation whoch is set up in dimensioned accumulation, defined in the SETTING mode automatically turns off, and, conversely, during turning on SETTING mode of temporary accumulation - dimensioned automatically turns of. F2 (strobe) The strobe is used to set control zones, levels of susceptibility and Automatic Defect Signaling actuation, measurement of defect coordinates and signal amplitudes from reflectors in an interval of interest If the signal exceeds the strobe level, the cursor is automatically set at the point where exceeding has occurred (or at the maximum), the corresponding parameters of the cursor in this point are displayed, and sound and light indication occurs (Automatic Defect Signaling actuation). If the strobe is located outside of the displayed diapason, a pointer appears near the right border of the diapason, which allows determining the level of the strobe threshold (a single red arrow). ATTENTION: IF THE SIGNAL AMPLITUDE EXCEEDS THE LEVEL OF THE STROBE WHICH IS OUTSIDE OF THE DISPLAYED DIAPASON, AUTOMATIC DEFECT SIGNALING ACTUATION OCCURS, BUT THE CURSOR AND MARKER ARE NOT DISPLAYED! Functions of the buttons used in case of active pictogram Table 13. T a b l e 13 Button Function are given in Movement of the strobe in the corresponding direction Change of the strobe length relative to its left border Switching the strobe off and exit from the settings. The strobe switches on in case of enter in the settings of the strobe with F2 button F2 exit from the editing mode 35

36 F1, F2 F5 exit from the editing mode with fulfillment of the function of a pressed button Enter into the ADJUSTMENT mode On the panel of measurement results, there is the beginning of the strobe (X1) in the first block, the end of the strobe (X2) in the second block, the level of the strobe (A) in the third block (Figure 29). F3 (actuation type) Figure 29 Selection of Automatic Defect Signaling actuation type - at the maximum of the signal in the strobe; - at the first exceeding by the signal of the strobe level. In the mode of measurement at the maximum, positions of the cursor and marker coincide. F4 (signal type) Switching of the signal type in A-Scan area: - detected contour; - detected, filled-in; F5 (zoom) - radio signal. - ZOOM mode is off; - ZOOM mode is on. If the ZOOM mode is on, the signal is displayed within the time span, corresponding to the strobe, which allows to assess the form of temporary realization of the signal within the strobe in more detail. The screen view in the ZOOM mode is given in Figure

37 F6 (time corrected gain) Figure 30 - time corrected gain curve is on; - time corrected gain curve is off. 3.3 A-SCAN mode (Through method) The interface of the A-SCAN mode (Through method) completely coincides with the interface of the A-SCAN mode (Echo method), only A-Scan line is colored with the yellow color The device screen in the A-SCAN mode (Through method) The screen view of the device in the A-SCAN mode (Through method) is given in Figure 37

38 3.4 MAP mode Figure 31 MAP mode is intended to form a set of images of control object sections perpendicular to the control object surface during scanning of the antenna array along the previously marked lines (rows) with a constant pitch The device screen in the MAP mode The screen view of the device in the MAP mode is given in Figure 32. Cursor position Scanning pitch Coordinates of the current cursor position Map name Scale of the cursor positions along X axis Saved A-Scan Current A-Scan Horizontal cursor Vertical cursor Scale of the cursor positions along Y axis Area of pictograms 38

39 Figure Functions of buttons in the MAP mode Functions of the buttons used in the MAP mode are given in Table 14. T a b l e 14 Button Function Switching on/off of the device Movement of the horizontal and vertical cursor in the field of maps Saving of the current A-Scan F1, F2, F3 control over the corresponding parameter Enter into the ADJUSTMENT mode Functions of the controlling pictograms F1 (scanning direction) - horizontal scanning; F2 (view of a reflected signal) - vertical scanning. signal is reflected in A-scan mode; signal is reflected in B-scan mode; signal is reflected in D-Scan mode. F3 (deletion of saved сигналов) - deletion of the selected signal on the map. 3.5 STOP mode If the button is pressed in the A-SCAN mode, the mode of saving and view of previously saved A-Scans (frames) starts (Figure 33). 39

40 Figure 33 Pictogram functions in case of entry in the STOP mode are given in Table 15. T a b l e 15 Button Pictogram Purpose F1 Frame saving in the STOP mode F2 Start of view of saved frames 34) Saving of the current frame If F1 button is pressed, the device starts editing mode of the name of a new frame (Figure 40

41 Figure 34 By default, the name of a frame is formed from Frame word, a hyphen and then a sequence number of the frame. Any name may be assigned to a frame. Editing mode of the frame name is completely analogous to the editing mode of the configuration name (paragraph 3.1.2). 3.6 Work with previously saved frames If F2 button is pressed, the device starts the mode of view and deletion of saved frames (Figure 35). 41

42 Figure 35 Functions of pictograms in case of entry in the STOP mode are given in Table 16. T a b l e 16 Button Pictogram Purpose F1 F2 F3 Movement to the previously saved frame Movement to the next saved frame Deletion of the current saved frame If the F3 button is pressed, deletion confirming window with the name of the frame being deleted opens (Figure 36) ? Figure 36 Functions of the buttons used in the STOP mode are given in Table 17. T a b l e 17 Button Function Movement of the measurement cursor before saving of the frame Exit from the STOP mode 42

43 4 MAINTENANCE 4.1 Power supply and power consumption Control over the state of power source In the process of the device work, a built-in charge controller monitors the discharge degree of the power source. The discharge degree is displayed with the battery symbol in the right top corner of the screen. Completely filled-in green symbol marks fully charged accumulator. In the process of discharging, the symbol clears and changes its color from orange to red. If the accumulator is critically discharged, the device automatically switches off, saving all the settings and recorded information. 4.2 Maintenance frequency It is recommended to periodically clean the device body from dirt and dust with a cleaning agent for plastic items in the process of operation. If the protective glass of the screen is dirty, it should be wiped with a soft cloth moistened in a household cleaning agent for plastic glasses. The dirty keyboard can be cleaned with alcohol. If dirt or foreign particles get in the arming connectors, they should be cleaned with a soft brush. 4.3 Potential problems In case of any problems or questions concerning use of the device, please, contact a company representative by the telephone numbers indicated in the data sheet of the device. 4.4 Storage The device should be stored in a transportation suitcase included in the scope of delivery of the device. Storage conditions are 1 under GOST The devices should be stored in racks. Arrangement of the devices in a storage room should provide free movement and access to them. Distance between the walls, floor of the storage room and the devices should be no less than 100 mm. Distance between heating units of the storage room and the devices should be no less than 0.5 m. There should be no current-conducting dust, admixtures of aggressive gases and vapors, resulting in corrosion of the device materials in the storage room. 43

44 5 TRANSPORTATION The device should be transported in a transportation suitcase included in the scope of delivery of the device. Transportation conditions in a part of the impact of ambient environment climatic factors must be in accordance with the transportation conditions 5 under GOST Transportation of the packed devices may be performed at any distances by any mode of transport without speed limitation. The packed devices must be fixed in transport facilities, and in case of open transport facilities, they must be protected from precipitation and splash of water. Arrangement and fixation of the packed devices in transport facilities should provide their stable position and exclude possibility of stroke against each other as well as against the walls of the transport facilities. Conditions of the devices transportation should meet the requirements for the specifications, rules and norms in force for each type of transport. In case of transportation by air, the packed devices should be arranged in pressurized and heated sections. After transportation at temperature that differs from operation conditions, before operation the device should stay in normal climate conditions at least two hours. 44

45 APPENDIX A (referential) Recommended ultrasonic inspection literature 1 GOST Nondestructive testing. Welded joints. Ultrasonic methods. Introduction M.; Standartinform, p. 2 Nondestructive testing and diagnostics: handbook / edited by V.V. Klyuev et al. 3 rd edition, revised and edited. M.: Mashinostroenie, p. 3 Nondestructive testing: handbook: in 8 volumes / under general editorship of V.V. Klyuev. Volume 3: I.N. Ermolov, Y.V. Lange. Ultrasonic testing. 2 nd edition, revised. M.: Mashinostroenie, p.: pic. 4 Ermolov I.N., Ermolov M.I. Ultrasonic testing. Textbook for specialists of the first and the second qualification levels. 5 th edition stereotyp. M.: Azimut, p.: 77 pic. 5 Scherbinskij V.G. Technology of ultrasonic testing of welded joints. 2 nd edition, revised. M.: Tisso, p. 6 Kretov E.F. Ultrasonic flaw detection in power-plant engineering. Tutorial / 3 rd edition, revised and edited. SPb: Sven, p. 45

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48 Ultrasonic flaw detector А1220 MONOLITH OPERATION MANUAL Revision: February,