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Acoustic control systems A1214 EXPERT User Manual

Ultrasonic flaw detector
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OKP 42 7612
ULTRASONIC FLAW DETECTOR
А1214 EXPERT
USERS GUIDE
APYAS.412231.012 RE
Acoustic Control Systems
Moscow 2010

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Summary of Contents for Acoustic control systems A1214 EXPERT

  • Page 1 OKP 42 7612 ULTRASONIC FLAW DETECTOR А1214 EXPERT USERS GUIDE APYAS.412231.012 RE Acoustic Control Systems Moscow 2010...

  • Page 3: Table Of Contents

    Ultrasonic flaw detector А1214 EXPERT Table of Contents APPARATUS DESCRIPTION AND WORK .......... 6 DEVICE APPOINTMENT ............... 6 1.1.1 Appointment of the flaw detector ............6 1.1.2 Service conditions ................. 6 TECHNICAL CHARACTERISTICS ............6 1.2.1 The key parameters of the device ............6 1.2.2 Instrumental characteristics of the device ..........7 1.2.3 Characteristics of the probe pulse generator ......... 7 1.2.4 Characteristics of a reception path ............
  • Page 4 Ultrasonic flaw detector А1214 EXPERT MAINTENANCE .................. 58 UTILITY POWER AND ENERGY CONSUMPTION ......58 3.1.1 Power supply energy control ............... 58 3.1.2 Accumulator preburning ............... 58 PERIODIC MAINTENANCE ..............59 POTENTIAL PROBLEMS ..............59 STORAGE ................... 60 TRANSPORTATION ................61 ATTACHMENT А .................... 62 Users guide 19.08.2010...
  • Page 5 The device is issued by the manufacturer: «Acoustic Control Systems» Ltd (“ACS” Ltd) Russia, 115598, Moscow, street Zagoryevskaya, hultrasonic 10, building 4 Phone/fax: (495) 984 7462 (multichannel) E-mail: market@acsys.ru Website: www.acsys.ru...

  • Page 6: Apparatus Description And Work

    Ultrasonic flaw detector А1214 EXPERT APPARATUS DESCRIPTION AND WORK DEVICE APPOINTMENT 1.1.1 Appointment of the flaw detector The flaw detector А1214 EXPERT is related to ultrasonic general- purpose flaw detectors for manual control. The flaw detector is designed for search, definition of coordinates and estimation of various infringements sizes in continuity and uniformity of a material in products made from metals and plastic. The flaw detector allows to form, register and keep in non-volatile memory time realizations of echo signals. The electroluminescent display of the electronic block provides displaying of echo signals in the form of A-involute, and also the images of control objects sections in the form of B-scan. Manual and automatic measurement of time intervals, signals amplitudes and automatic calculation of defects coordinates are provided.

  • Page 7: Instrumental Characteristics Of The Device

    Ultrasonic flaw detector А1214 EXPERT Table 1 Parameter’s name Value Nominal working ultrasound frequencies, MHz 0,5 - 15,0 (±10 %) Dynamic range, dB, not less Range of time intervals changes, mcs 1 - 1200 Range of ultrasound speed in material tuning, m/s 1000 - 15000 1.2.2 Instrumental characteristics of the device Instrumental characteristics of the device are displayed in the table 2. Table 2 Characteristic’s name Value Limit of assumptive value of basic absolute error ± (0,01X+0,1) in thickness X measurements, mm, no more Limit of assumptive value of basic absolute error ± (0,01t+0,1) in time interval measurements t, mcs, no more Nonlinearity of development on a vertical, %, no ±1 more Limits of adjustment of a delay in development, 0,0 - 99,9 mcs 1.2.3 Characteristics of the probe pulse generator...

  • Page 8: Characteristics Of A Reception Path

    Ultrasonic flaw detector А1214 EXPERT Table 3 Characteristic’s name Value The probe pulse form Meander Number of periods 0,5 - 5,0 The probe pulse parameters: Amplitude (half of swing), V 20; 100; 200 (±5 %) Duration of fronts, no more, ns Frequency of the probe pulse repetitions, Hz 10; 25; 50; 100; 200 1.2.4 Characteristics of a reception path Characteristics of a reception path are displayed in the table 4. Table 4 Characteristic’s name Value Frequencies strip of a reception path, MHz 0,14 - 21,00 Effective value of the own noise, resulted in to input, mkV, no more Reorganization range of the attenuator, dB 0 - 90 Absolute error of the attenuator steps, dB, no ±0,2 more Dynamic range of time variable gain, dB, not less...

  • Page 9: Constructive Characteristics And Reliability Parameters

    Ultrasonic flaw detector А1214 EXPERT Table 5 Characteristic’s name Value The power source Demountable accumulator Nominal value of the flaw detector’s source voltage, V The electrical current consumed by the flaw detector under nominal value of the source voltage: Minimum level of the screen luminescence, mA, no more Maximum level of the screen luminescence, mA, no more...

  • Page 10: Apparatus Arrangement And Work

    Ultrasonic flaw detector А1214 EXPERT Characteristic’s name Value Working atmospheric pressure range, kPa 84,0 - 106,7 Average time between failures, h, not less 32000 Target date of service, years APPARATUS ARRANGEMENT AND WORK 1.3.1 Flaw detector’s arrangement The flaw detector includes the electronic block with the replaceable storage battery, a set of cables for ultrasonic converters of the various type connections, the charging device and various accessories. 1.3.1.1 The flaw detector’s electronic block The flaw detector’s electronic block provides electric impulses formation for excitation of the piezoelectric converter, strengthening received from the piezoelectric converter signals, their processing, visualization, formation and representation of measurements results, preservation of the data in non-volatile memory, data transmission to the external computer. Appearance of the electronic block is displayed on the picture 1. Flaw detector management is carried out by means of the film keyboard.
  • Page 11 Ultrasonic flaw detector А1214 EXPERT The button for handle position adjustment ASD Indicators Sockets for converters connection Picture 1 Piezoelectric converter connection is carried out by means of the coaxial cables which present in the set of delivery, through sockets LEMO which are located in a niche of the right wall of the case. Device’s power supply is carried out with the help of replaceable accumulator, or from the external power source which includes in the set of delivery, connected to LEMO socket. The socket is located on a back wall of the device (picture 2).
  • Page 12 Ultrasonic flaw detector А1214 EXPERT also reduces voltage instability influences which are present in industrial and household networks. Charging device VS121 transforms the direct current voltage of 12 V into necessary for flaw detector’s work voltage and also carries out accumulator charging and training that increases its service life. Depending on the flaw detector’s battery discharge the accumulator charging can last till 6 hours. In the accumulator charging process the flaw detector can carry out its functions in full volume (except a communication with computer mode). To avoid device damage under wrong connection, it is recommended to connect devices in the following sequence: connect the charging device cable to the electronic block; connect the charging device cable to the charger; connect the output cord of the network adapter to the charging device; connect the network cable to the network adapter; connect the network cable with the network (picture 3).
  • Page 13 Ultrasonic flaw detector А1214 EXPERT ATTENTION! DURING THE CONNECTION OF THE CHARGER AND THE DEVICE WITH THE CABLE IT IS NECESSARY TO OBSERVE THE SOCKETS KEYS AS IT IS SHOWN ON PICTURE 4. ARROWS SPECIFY THE SOCKETS KEYS. Picture 4 For operating mode indication on the forward panel of charging device VS121 light-emitting diode indicators of three various colors are placed: red, yellow and green. The red light-emitting diode designates voltage presence on charging device VS121 input. The yellow light-emitting diode...
  • Page 14 Ultrasonic flaw detector А1214 EXPERT Depending on the converter type two types of cables and accordingly, two ways of connection with the piezoelectric converter are used: – The combined converters (type S) are connected by means of unary cable LEMO-LEMO to a socket indicated as IN (picture 5). Picture 5 – Separately-combined (РС) converters (type D) are connected by means of a double cable LEMO-LEMO. The socket indicated as OUT serves for connection of the transferring piezoelectric element, indicated as IN - for receiving piezoelectric element. Usually on РС converters the socket of a transferring piezoelectric element is marked by a red or a white point (picture 6). Picture 6 1.3.1.4 Cables and sockets Connecting cables of the device are produced from the high-quality coaxial cables and sockets of leading world manufacturers («Raychem», «LEMO», etc.). Application of the cable products described above provides necessary flexibility of cables at low temperatures (up to -30 centigrade degree), reliable fixing of connections at small dimensions and connection places sockets and cables protection against fractures. This finally minimizes...

  • Page 15: Main Interface Principles

    Ultrasonic flaw detector А1214 EXPERT 1.3.2 Main interface principles In А1214 EXPERT there is an intuitive interface principle. Associative menu pictographs in various modes, explanatory pictures near the parameters, names and designations of keys allow to master work with the flaw detector easily and simply. The data output on the screen is realized in such a manner that the necessary for operative control information is always there. The flaw detector work is accompanied by sound signals which can be deactivated.

  • Page 16: Information Representation On The Screen

    Ultrasonic flaw detector А1214 EXPERT This is convenient during the analysis of the general ultrasonic signals form and work with direct converters. In the MAGNIFIER mode the maximum quantity of the operative measuring information is presented on the screen and the sizes of signals displaying area are limited. Herewith two A-scans are simultaneously displayed - the general and stretched time interval corresponding to area of the first strobe. The feature of the given mode using is measurement with the raised accuracy. The B-scan mode is made for formation of one cross-section section ОК (B-scans).

  • Page 17: Flaw Detector's Keyboard

    Ultrasonic flaw detector А1214 EXPERT Picture 7 The top line indicates the name of current operating mode  and the service information. In the field of the service information there is a current date and time , temperature inside of a device , equivalent time of continuous device work during accumulator (timer) power supply from the last accumulator charging moment , power supply source condition . In the right part of the top line in functional modes measuring information  can be displayed. In the bottom part of the screen the area of pictographs is located . With their help the following operations are made: choice of an operating mode, adjustment of a signals representation way, adjustment of strobes and threshold devices and so forth. The average part of the screen is used for results measurements displaying, flowing parameters and flaw detector settings.
  • Page 18 Ultrasonic flaw detector А1214 EXPERT The condition indicator Device ON/OFF Block of control keys Monitor Display brightness CANCEL key ENTER key settings SETTINGS key FREEZING key Pictograph choosing keys Picture 8 There are: tuning the power on/off key, 17 multipurpose keys and three light-emitting diode indicators.
  • Page 19 Ultrasonic flaw detector А1214 EXPERT When the sound is on pressing the keys are accompanied by a short signal. The short description of keys appointments for the basic device operating modes is resulted in table 7. Table 7 Key functions in different modes Search Rewiew Loupe B-scan STOP MENU Apparatus switching ON and OFF. You need to hold the key not less than 0,5 s Moving the cursor Choosing in B-scan, Choosing of settings Time-base range switching rewiew of active menu of the...

  • Page 20: Using Of Pictographs

    Ultrasonic flaw detector А1214 EXPERT Key functions in different modes Search Rewiew Loupe B-scan STOP MENU Display brightness setting. Each pressing increases the brightness. After the maximun brightness is achieved if press again then it will become minimum again. Pectographs choosing buttons Record of Record Function Basic level switching ON / OFF the next into activation section memory Informational window with current Section ----- ----- configuration opening clearing Management of the separate device functions is carried out by means of a key combination (while the 1st key is pressed it is necessary to press 2nd key). The key combinations used and their appointment are displayed in table 8. Table 8 Key 1 Key 2 Appointment Apparatus switching on with default value of all settings and parameters...
  • Page 21 Ultrasonic flaw detector А1214 EXPERT Pictographs can be passive (yellow symbols on a black background) and active condition (black symbols on a yellow background). The active condition means that change of device parameters properties corresponding to the current pictograph is possible. During the work in functional modes SEARCH, REVIEW, MAGNIFIER (LOUPE), B-SCAN pictographs are in a passive condition and display a current condition of device’s options. In these modes pressing the pictographs choosing keys leads to pictographs activation and changing of corresponding parameters. At keys release the given pictograph comes back into a passive condition. The exceptions are the pictographs of strobe management and work with swept gain/DSG-diagram. They work with a principle: one pressing – entrance,...

  • Page 22: Proper Use

    Ultrasonic flaw detector А1214 EXPERT PROPER USE OPERATIONAL RESTRICTIONS The device is made for operation in the surrounding environment conditions which are specified in item 1.1.2. APPARATUS PREPARATION FOR USE When delivered by air transport according to safety requirements the flaw detector’s accumulator is disconnected from electric schemes. In this case it is necessary to insert the accumulator in directing slots which are located on the back side of the electronic block and accurately move it before clamp click. Note - for accumulator removal is necessary to press a clamp and accurately move the accumulator from the directing slots.
  • Page 23 Ultrasonic flaw detector А1214 EXPERT For thickness of products definition straight combined (type S) and separately-combined (type D) converters are used. Straight combined piezoelectric converters are used for flaw inspection and measurements of a thickness of products concerning the big thicknesses. The maximum depth of control depends on working frequency of the converter, diameter of its working surface and attenuation of ultrasonic fluctuations in a controllable product material. The dead zone is thus defined by quality decrement of the ultrasonic converter.

  • Page 24: Installation Of Parameters

    Ultrasonic flaw detector А1214 EXPERT Table 9 Input corner Input corner Seam Piezo slab (at control Frequency, Minimum (at control thickness, maximum by the arrow, mm by a direct size, mm reflected beam) beam) 8-12 2,5; 5 8-12 65; 70 65; 70 12-20 8-12 20-40 40-70 70 -120 More certain recommendations about ultrasonic converters choosing are contained in specialized techniques, supervising documents, basic positions and other methodical materials about ultrasonic flaw inspection.

  • Page 25: Calibration Of The Inclined Piezoelectric Converter (Pec)

    Ultrasonic flaw detector А1214 EXPERT Table 10 CONVERTER PARAMETERS Piezoelectric converter type Piezoelectric converter frequency, MHz Corner of input Delay, mks Arrow, mm ELECTRONIC PATH PARAMETERS Pulse, V Number of periods Poll frequency, Hz Filter B-scan temp, Hz CONTROL PARAMETERS Velocity, m/s Thickness, mm Search threshold, dB Cutoff, % Scale X The combination of all these groups of parameters forms a device settings configuration. Creation and preservation in non-volatile device’s memory of 99 various configurations are provided.
  • Page 26 Ultrasonic flaw detector А1214 EXPERT Before the entrance into a calibration mode in point «INPUT CORNER» it is necessary to establish passport value of the input converter corner. The input in this mode is carried out from the MENU mode by point selection «THE INPUT CORNER» and key pressing . Herewith the device remembers current configuration settings and a screen type. For calibration period the device will change some parameters of adjustment, in particular it will establish a zero delay, amplitude of a probing impulse and a number of other parameters. At the exit from procedure they will be restored. The signal in a calibration mode will be displayed as a mode of spatial bending around with the maximum size of the screen. Calibration consists of two stages: definitions of in prism piezoelectric converter delay and calculation of an input corner of piezoelectric converter. It is possible to leave a calibration mode only having passed both stages. The calibration sample V2/25 is necessary for procedure carrying out. On the first stage the delay in a converter prism is defined. For this purpose it is necessary to scan radial part (R50) of the sample V2/25 from a long side (picture 9). Picture 9 Herewith the peak bending around from radial part is displayed on the screen (picture 10). Users guide 19.08.2010...
  • Page 27 Ultrasonic flaw detector А1214 EXPERT Spartial bending around an echo signal Picture 10 While regulating the attenuator, it is necessary to achieve the signal amplitude from radius surface of the sample at the level more than 25 % of the screen. If necessary it is possible to dump accumulates results by pressing a key and repeat scanning again. During the scanning the vertical cursor will automatically fix a maximum of this bending within the established strobe. Strobe movements are blocked, its position is chosen according to a zone in which the useful for measurements signals on the sample V2/25 can lie. Having received a kind of signal comprehensible to measurements it is necessary to press a key . Herewith the device will settle calculation and will pass to the second stage - measurement of an input corner. Spatial bending will dump the previous accumulation; parameters of attenuator will change - decrease on 10 dB.

  • Page 28: Adjustment Of Sensitivity

    Ultrasonic flaw detector А1214 EXPERT Picture 11 At the big corners (except PIEZOELECTRIC CONVERTER 65º 2,5 MHz) scanning is conducted on a small contact surface of sample V2/25. Herewith with the help of attenuator must be achieved a situation when bending line will be above the strobe and “will not leave” the restriction. Thus it is not necessary to displace PIEZOELECTRIC CONVERTER strongly from a corresponding corner match mark in order to avoid false measurements. For dump of the current data the key is used. Having received accumulation from a signal of an aperture press a . The device will calculate the corner and deduce the total table with the calculated parameters. The calculated delay in micro seconds and an input corner in degrees will be displayed on the screen. To keep and establish these parameters, it is necessary to press , to cancel - . Herewith the device will restore former values of a delay and an input corner.

  • Page 29: Apparatus Operating Modes

    Ultrasonic flaw detector А1214 EXPERT Control (fixing level) - sensitivity level on which the fixing of non- continuities which are subjects of registration and the further estimation on extent, height, specific quantity, the form and orientation are made. A test objective level is below the rejection level on 6 db if supervising reference documents do not stipulate other. It can be settled by means of the second strobe. Search - sensitivity level on which the search of defects by scanning the object in the set trajectory is made. The search level is below rejection minimum on 12 dB. It is exposed with the help of the attenuator. Basic - the level of the sensitivity established on a signal from the chosen reflector in OBJECT OF CONTROL / REFERENCE BLOCK. Value of basic level can be established in corresponding point of the MENU - «BASIC LEVEL». During control on the flaw detector’s screen the result will be displayed. It shows on how many decibels the accepted signal amplitude is more or less than the established basic level.
  • Page 30 Ultrasonic flaw detector А1214 EXPERT A-SCAN Editable point of the MENU Chosen section of the MENU Picture 12 In the top line of the screen the name of active configuration is displayed. In the low line there is a pictograph menu. Above the pictograph menu there is a settings adjustment area (unto five points per each pictograph). And above the settings adjustment area there is the A-SCAN. Its observations help to control the propriety of settings chosen under the apparatus tuning. The active line of parameters always presents in the MENU mode. Selection of the active line is made with the help of keys and The keys and change the parameter’s value in the active line. In case of the active line fits with the definite executed by apparatus function then its activation is made with the help of the key . Such lines are marked with the triangle leftwards.
  • Page 31 Ultrasonic flaw detector А1214 EXPERT Table 11 Menu line Parameters Step Comment Piezoelectric converter (PEC) parameters PEC type Joint / Separate PEC type setting Workiit frequency of PEC setting frequency, 0,5-15,0 0,1-2,0 (for frequency more than 10 MHz the number of periods is 1,0) Inclined PEC input angle setting. Input corner, Entrance into the procedure of semi- 0,0 - 90,0 automatic input corner and delay measurement. Double time of signal passage in Delay, mcs 0,00 - 99,98 0,02 PEC protector (hardware time of delay) Arrow, mm 0,0-49,9 Converter's arrow setting Characteristics of a taking-transferring path of the device Pulse, V 20/100/200 Probing pulse amplitude Defines a form of a probing signal (for Number of 0,5-5,0...
  • Page 32 Ultrasonic flaw detector А1214 EXPERT Table 11 continuation Menu line Parameters Step Comment Object of control (ОС) parameters and additional settings Ultrasonic fluctuations velocity Velocity, m/s 1000- 15000 in the ОС Thickness, OFF/0,1 -499,9 Setting ОС thickness Level concerning which there is an Basic level, amplitude redout of a signal in the OFF/0-140 field of the vertical cursor (at the included basic level) Cut off level under the signal screen Cut off, % 0-99 displaying Scale, X mks / mm Units of a horizontal scale marking Service settings РУССКИЙ / Language Language change ENGLISH Sound ON / OFF Sound indication management Cursor...

  • Page 33: Search Mode

    Ultrasonic flaw detector А1214 EXPERT Table 11 continuation Menu line Parameters Step Comment Installation of the total number counter of written down realisations Data memory 0-500 from 500 Installation on 0 equivalents of memory clearing Dump by time Dump of the counter of an operating counters time from the accumulator Curves of DSG-diagram adjustment Piezo element 0.0 - 25,0 Piezo element diameter in converter diameter, mm Installation of the equivalent reflector equivalent 0.0 - 25,0 area value area, sq. mm Basic signal Installation of basic signal level on 0-200 on V2/25 sample V2/25 from aperture Attenuation, Installation of attenuation factor 0,0 - 99.9 dB/m in a control object material...
  • Page 34 Ultrasonic flaw detector А1214 EXPERT having the maximum amplitude in a strobe is carried out there. If a signal is below a strobe it’s fixing and measurement is not made. The measurement mode when strobes are disconnected is called manual. Signal measurement is made by cursor moving with the help of keys and Variant of the screen image of device for the given mode is displayed on picture 13. The measuring cursor Marker Echo-pulse Area of peak signal measurements Strobes Area of of coordinates measurement (at the strobes moving the information about their position is displayed here) Picture 13...
  • Page 35 Ultrasonic flaw detector А1214 EXPERT The device allows representing the signals in not detected (oscillographic) kind and in detected kind (A-scan). For detected kind it is possible to choose filled contour, the blank contour or bending line. Except a signal, in graphic area the vertical line of the measuring cursor and strobes in the form of horizontal pieces with terminators are displayed.
  • Page 36 Ultrasonic flaw detector А1214 EXPERT In the bottom part of the screen the pictographs which allow operating strobe position are located. They also can manage a choice of the measuring cursor operation way, switching of signals displaying mode and working window type, switching on time adjustment of sensitivity functions and work with DGS- diagrams. The more detailed way of adjustment and work with SWEPT GAIN functions and DGS-diagrams is described below. In table 12 the description of pictographs in SEARCH, REVIEW and MAGNIFIER modes is displayed. Table 12 Pictograph Appointment Strobe 1 management Strobe 1 is OFF. There is no automatic changing Strobe 1 is ON. DSG-diagram operation at threshold excess STROBE 1 SETTING Strobe position, level and length settings. Entrance with a key Exit through the same key. Active keys: -left strobe edge position; -strobe length, - strobe level.
  • Page 37 Ultrasonic flaw detector А1214 EXPERT Table 12 continuation Pictograph Appointment STROBE 2 SETTING Strobe position, level and length settings. Entrance with a key Exit through the same key. Active keys: - left strobe edge position; -strobe length, - strobe level. Way of automatic signal parameter measurement With the installation given the time (depth) will be mea-sured from the moment of a probing impulse till the moment when the signal has exceeded level in the strobe, the amplitude is measured in a maximum point With the installation given the time (depth) will be mea-sured from the moment of a probing impulse till the maxi-mum level of the strobe, the amplitude is measured in the same point Management of signal representation way The detected signal is displayed in the form of a plani-metric line The detected signal is displayed in the filled type The signal is presented in not detected type Spatial bending construction around the detected signal Modes changing SEARCH mode VIEW mode MAGNIFIER mode Users guide...

  • Page 38: Review Mode

    Ultrasonic flaw detector А1214 EXPERT Pictograph Appointment B-SCAN mode Work with a swept gain Swept gain is OFF Swept gain is ON Swept gain characteristic editing. The signal and additional swept gain characteristic are incLiced in logarithmic scale. Creation and removal of knots, Installation of knots level in dB. Enter with the key exit with the Active keys: -enter and removal of knots -Cursor installation in a central point. -central point level installation. -setting of swept gain default parameters. Work with DSG-diagram The mode with DSG-diagram curve construction is ON The mode with DSG-diagram curve construction is ON, but it cannot be calculated for the para metres specifies 2.3.3 REVIEW mode In the REVIEW mode the A-scan of a signal with the maximum size on the screen is displayed, and the digital measuring information is minimized. That is convenient during the general ultrasonic signals form analysis. Controls in the REVIEW mode and in the menu of pictographs are similar to the SEARCH mode.

  • Page 39: Magnifier Mode

    Ultrasonic flaw detector А1214 EXPERT Measuring cursor Attenuator value Parameter indication Strobes Marker Picture 14 In the top line along with the official information and the name of a current operating mode the value of attenuator in dB is displayed. In the central graphic area on the right above the basic measuring parameter is displayed. The parameter choice is carried out in the MENU mode, in a group of service options , point - «IN THE REVIEW MODE».

  • Page 40: B-Scan Mode

    Ultrasonic flaw detector А1214 EXPERT Strobe 1 Signal in the strobe 1 field Picture 15 In the bottom graphic window the stretched time interval corresponding to a strobe 1 is displayed. Presence of the window given allows to estimate the form of a part time realization symbol being in limits of a strobe 1 in more details. 2.3.5 B-SCAN mode The B-scan is intended for formation of measurements results in the form of control object cross-section image (B-scan) at manual uniform scanning by the converter along one line. The corresponding screenshot of the device is resulted in picture 16. Users guide 19.08.2010...
  • Page 41 Ultrasonic flaw detector А1214 EXPERT Comparison threshold Area of signal displaying in on-line mode Object of control signal cross-section (B-scan) The area of A-scan viewing corresponding to a cursor position A-scans rewiew cursor Measuring cursor Picture 16 The screen structure is similar to the MAGNIFIER mode. In the top graphic window there is A-scan in a real time mode, and in bottom window there is a B-scan. The right part of the screen is intended for measurements results displaying. The A-scan displayed scale is set up preliminary in modes SEARCH, REVIEW or MAGNIFIER with the help of attenuator and development parameters. Threshold comparison level is defined by level of the first...

  • Page 42: Auxiliary Modes And Functions

    Ultrasonic flaw detector А1214 EXPERT The section image is formed in the binary image type on which black color marks the areas of a comparison threshold signal excess and other places remain light. The section received can be additionally analyzed by changing of a comparison threshold by means of and keys. The keys and move the cursor and allow to see the separate written down A-scans in the left part of the bottom window. By means of keys and is possible to move the measuring cursor and to write down indications of coordinates. 2.3.6 Auxiliary modes and functions 2.3.6.1 Strobes adjustment Strobes are used for installation of control zones, sensitivity levels, operation of ASD system, coordinates of defects measurement and signals amplitudes from reflectors in interesting intervals. In the device there is a possibility of work with two strobes. If a signal exceeds a strobe level, the cursor automatically is established on a point, where there was an excess (or on a maximum).
  • Page 43 Ultrasonic flaw detector А1214 EXPERT Switching on / off the chosen strobe is carried out with the key For the position and the size of a strobe editing the following keys are used: - strobe moving across; - adjustment of a strobe duration; - adjustment of a strobe level. Editing is possible only with the strobe ON. In the right bottom window of the screen the information about the strobe beginning, its length and level is displayed (from up to down on picture 17).
  • Page 44 Ultrasonic flaw detector А1214 EXPERT SWEPT GAIN curve SWEPT GAIN central point Picture 18 The vertical axis of the screen is graduated in decibels and corresponds to level of strengthening correction in a device path. Level of strengthening for the corrected knot is displayed in the right top corner of the screen. Change of SWEPT GAIN characteristic is applied to displayed realization of a signal that allows selection of demanded function operatively. Dependence of transfer factor between central points is interpolated on exponential law.
  • Page 45 Ultrasonic flaw detector А1214 EXPERT – Repeat the procedure of a central point installation for the distant reflector. – With the keys correct the position of again created central points so that amplitudes from a near and far reflector were established at one level. The exit from a SWEPT GAIN editing mode is carried out with a corresponding key of a pictographs choice.
  • Page 46 Ultrasonic flaw detector А1214 EXPERT Picture 19 Examination level curve is depicted by degraded contrast line and acceptance level curve – by solid line. If the parameters for calculation are incorrect instead of pictogram the pictogram will be depicted. For correct construction of DGS-diagrams set the parameters in MENU mode, the parameter group marked by pictogram within the limits outlined in table 13.
  • Page 47 Ultrasonic flaw detector А1214 EXPERT Menu bar Range Index Note REFERENCE 0 - 200 Setting the reference signal of SIGNAL ON V2 the reference level on block V2/25 from the hole (5 mm diameter) ATTENUATION, 0 - 99,9 Setting of attenuation dB/m coefficient in OK material -12 - 0 DGS examination curve level EXAMINATION, dB in respect to the acceptance level PE DIAMETER – piezoelectric element diameter specified in PEP passport or measured diameter.
  • Page 48 Ultrasonic flaw detector А1214 EXPERT relation to the acceptance level, namely: – «+» - the signal exceeds the acceptance level by this value; – «-» - the signal is lower than the acceptance level by this value. In SCAN mode at DGS-diagram construction the display depicts the parameter chosen in the unit MENU option «IN SCAN MODE» and the value of the flaw equivalent area. DGS mode is switched on by pressing button with active sixth window of the pictogram. 2.3.6.4 STOP mode STOP mode is intended for stopping (freezing) the signal realization on the display and their recording to the memory and also for viewing earlier recorded realizations with all their accompanying parameters and testing conditions.
  • Page 49 Ultrasonic flaw detector А1214 EXPERT Table 14 Pictogram variant Function Records realization at pressing the key Allows viewing earlier recorded realizations with the help of the key The name of the configuration into which Configuration name the realization is recorded Additional number Automatically or manually assigned number Continuous numbering Recorder realization sequence number meter pictogram is active the recording is made into the unit memory. To carry out recording press . An open number is assigned to each recorded realization. Users can assign an additional number to each realization. This number is automatically increased with each frame recording. To change it activate the area of additional number with keys Before recording the user can manually measure the vertical cursor...
  • Page 50 Ultrasonic flaw detector А1214 EXPERT 2.3.6.5 Computer communication mode The computer communication mode is used for: – transferring data recorded to the unit memory to PC; – viewing the unit signals on PC screen in the real time mode; – configuration recording from PC to the unit and backwards; – ultrasonic test protocol drawing up. The unit is connected with PC with the help of the cable for USB connection: multipin connector LEMO is pluged into the unit and USB plug – into PC. Connection is shown on Picture 21. Picture 21 Before connecting the unit to PC switch the unit off. At connecting to computer the unit automatically switches onto the computer control mode. The unit screen reads «COMPUTER COMMUNICATION MODE». ADM program is used for documenting the control results. This program allows: –...

  • Page 51: Measuring

    Ultrasonic flaw detector А1214 EXPERT ADM program possibilities detailed description and the order of its operation is given in «ADM program user manual». The program distributive and user manual are on the CD included into the unit distribution kit. MEASURING Measuring process detailed description is given in [7] and [8]. Further is short description of measuring. For manual testing in addition to the flaw detector and transducers you need blocks for equipment setting and testing and contact liquid. Unsound and exfoliating scale, rust or contamination of an item surface affect ultrasound penetration into OK material. Therefore, before carrying out measurements on such surface you should clean it of formation, wipe the surface, remove catalytic fines and cover the surface with contact liquid.

  • Page 52: Measuring Of Time And Coordinates

    Ultrasonic flaw detector А1214 EXPERT 2.4.1 Measuring of time and coordinates Measuring of the reflector (flaw) occurrence coordinates includes two main operations: – determination of the position of the transducer corresponding to the maximum of the echo signal from the reflector in OK; – fixing of the unit readings – time of ultrasound signal movement from PEP to the reflector and backwards or the reflector position coordinates in millimeters. MENU mode option «SCALE X» contains three variants of depicting the sweep (horizontal axes) which choice determines the type of coordinates depiction: Variant 1. «SCALE X MCS» - the horizontal axes is marked in microseconds in accordance with the ultrasonic wave beam. In the mode of working by the straight PEP the TIME of the ultrasonic signal movement from PEP to the reflector and backwards and the DEPTH of the reflector occurrence are depicted; In the mode of working by the angle PEP the following parameters are depicted: – TIME – the time of the ultrasonic signal movement from PEP to the reflector and backwards; –...
  • Page 53 Ultrasonic flaw detector А1214 EXPERT Variant 3. «SCALE X by depth MM» - the horizontal axes is marked in millimeters of OK thickness. In the mode of working by the straight PEP the PATH by the beam and the DEPTH to the reflector which coincide are depicted. In the mode of working by the angle PEP: the PATH by the beam from PEP to the reflector, OFFSET and DEPTH are depicted analogue with variant 1. The variant of depicting the reflector coordinates for angle PEP in EXAMINATION and ZOOM modes depending on «SCALE X» parameter choice in MENU mode are shown on Picture 22. «SCALE X MM», «SCALE X MCS» «SCALE BY DEPTH MM» Picture 22 In VIEW mode at changing coordinates and time the parameter chosen in option «IN VIEW MODE» of the unit MENU and does not depend on the variant of the unit sweep scale depiction is depicted.

  • Page 54: Measuring Of The Signal Amplitudes

    Ultrasonic flaw detector А1214 EXPERT 2.4.2 Measuring of the signal amplitudes Irrespective of the chosen type of the signal amplitude measuring, manual or automatic, the measured parameters of the signal are induced in the flaw detector display right area (Picture 23). Sensed signal amplitude Reference level Attenuator value Picture 23 In the first option SIGNAL the measured signal amplitude is depicted. In the second option LEVEL the reference level state is depicted. If the reference level is switched on its value is depicted in decibels and the measured signal amplitude is calculated from the reference level (Picture 24). The amplitude of sensed signal from the reflector is 0.5 dB over the set reference level of 90 dB Picture 24...

  • Page 55: Use Of Settings Depository

    Ultrasonic flaw detector А1214 EXPERT The attenuator is controlled by keys . To reduce the signal amplitude press and hold key in this case the attenuation in the attenuator grows which is depicted in the screen by the attenuator value growth. To increase the signal amplitude use key Note – In some other Russian and foreign flaw detectors instead of the attenuator value the values of signal increase in decibels are depicted, they grow with the signal amplitude growth in the screen. Attenuator is also used for readjusting the flaw detector from one sensitivity level to another. For example, in order to set the examination sensitivity level which is 6 dB lower than the recording level (i.e. examination sensitivity is higher than the test sensitivity) reduce the attenuator value by 6 dB with the help of key USE OF SETTINGS DEPOSITORY The unit settings depository is in MENU mode, group of parameters .

  • Page 56: Reading Of Configuration From Depository

    Ultrasonic flaw detector А1214 EXPERT Picture 25 2.5.1 Reading of configuration from depository In order to use an earlier used configuration load its parameters into the current configuration. After loading the name of the configuration from which the loading was carried out will be depicted in the menu in the upper part of the screen. If any parameter of the current configuration is changed in comparison with the initial configuration the asterisk is added to the name. A configuration can be chosen from the depository in three ways. Way 1 – in MENU mode. Choose the configuration in menu option «CHOOSE SETTINGS OUT OF 99» with the help of keys Way 2 - in VIEW, EXAMINATION, ZOOM and B-SCAD modes by the configuration number and name without viewing parameters. To choose a configuration hold key and press keys...

  • Page 57: Creating And Saving New Configurations

    Ultrasonic flaw detector А1214 EXPERT 2.5.2 Creating and saving new configurations To create a new configuration with necessary parameters insert these parameters into the current configuration, if necessary edit the configuration name and save to the memory under any number from 1 to 99. The name is edited in the option «EDIT NAME». To do it select pictogram corresponding to the section «OPERATIONS WITH UNIT MEMORY» in menu mode. Put the cursor on the option «EDIT NAME» and press key The configuration name will be highlighted in the upper area (Picture 26).

  • Page 58: Maintenance

    Ultrasonic flaw detector А1214 EXPERT MAINTENANCE UTILITY POWER AND ENERGY CONSUMPTION 3.1.1 Power supply energy control During the flaw detector operation the built-in discharging controller controls the power source discharge degree. In the display the discharge degree is induced in form of battery in the upper left corner. Fully filled in symbol means fully charged accumulator. In proportion to discharging the symbol is cleaned. At the accumulator charge critical level the unit automatically switches off saving all settings and recorded information.

  • Page 59: Periodic Maintenance

    Ultrasonic flaw detector А1214 EXPERT PERIODIC MAINTENANCE In process of exploitation it is recommended to periodically clean the flaw detector case from dirt and dust with cleaners for plastic objects. In case of the indicator protection glass contamination it is recommended to wipe it with a soft tissue wetted with plastic glass cleanser. In case of contamination the keypad can be wiped with alcohol. In case you have no special cleaners the flaw detector can be cleaned with soapy water. If connectors are contaminated with dirt or foreign particles it should be cleaned with the help of a soft brush. It is recommended to preburn the accumulator once a month. POTENTIAL PROBLEMS Table 15 contains the description of typical problem which the flaw detector which users can amend himself. Table 15 Problem description Possible reasons Troubleshooting...

  • Page 60: Storage

    Ultrasonic flaw detector А1214 EXPERT STORAGE The flaw detector should be stored in the bag included into the unit distribution kit. The storage conditions -1 correspond to GOST 15150-69. The units should be stored on a shelf. Units placement in storage should allow their free movement and access to them. The distance between the storage walls, floor and units should be at least 100 mm. The distance between the storage heating devices and units should be at least 0.5 m. The storage premises should be free of current-conducting dust, aggressive gases and fumes admixtures causing the unit material corrosion. Users guide 19.08.2010...

  • Page 61: Transportation

    Ultrasonic flaw detector А1214 EXPERT TRANSPORTATION The flaw detector should be transported in the bag included into the unit distribution kit. The transportation conditions in part of climate influence should correspond to the storage conditions 5 corresponding to GOST 15150-69. Packed units can be transported for any distance and by any transport with no limitation of speed. Packed units should be fastened in carrying vehicles and in case of open carrying devices – protected from rain and water. Packed units placement and fastening in vehicles should provide their stability and exclude possible impacts on each other and the vehicle walls. Units transportation conditions should correspond to the requirements of specifications, rules and norms for each type of vehicle. In case of transportation by air packed units should be placed into sealed and heated compartments. After transporting in temperatures other than the exploitation temperature before exploiting the unit should be kept in normal climate conditions for at least 2 hours.

  • Page 62: Attachment А

    Ultrasonic flaw detector А1214 EXPERT ATTACHMENT А (for reference) Recommended literature on ultrasonic monitoring [1] GOST 14782-86 Non-destructive monitoring. Weld-in connections. Ultrasonic methods. [2] Non-destructive monitoring and diagnostics: Reference book under the editorship of Kyuev V.V. [3] Non-destructive monitoring: Reference book. Volume 3: Ultrasonic monitoring / Ermolov I.N., Lange Yu.V. [4] Ultrasonic monitoring: Textbook for experts of the first and second skill level / Ermolov I.N., Ermolov M.I.
  • Page 63 Ultrasonic flaw detector А1214 EXPERT Users guide 19.08.2010...
  • Page 64 Ultrasonic flaw detector А1214 EXPERT Ultrasonic flaw detector А1214 EXPERT Users guide Version of August 2010 Users guide 19.08.2010...

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