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ULTRASONIC FLAW DETECTOR

NOVOTEST UD2301

Operating Manual

2014

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Summary of Contents for UD2301

Page 1: ...ULTRASONIC FLAW DETECTOR NOVOTEST UD2301 Operating Manual 2014 ...

Page 2: ...bbreviations used 2 2 Introduction 2 3 Operating Conditions 3 4 Specifications 4 5 Operating principle 5 6 Operation of the device 7 7 Basic settings of flaw detector 22 8 Device memory 29 9 Calibration of the flaw detector 30 10 Maintenance 35 11 Precautions and trouble shouting 35 12 Manufacturer s guarantee and service maintenance 35 ...

Page 3: ...ho and mirror shadow testing methods Flaw detector allows user to create record and stored in nonvolatile memory temporary implementation of pulsed ultrasonic signals to subsequent transmitting to the PC for analysis and presentation in the form of a document Integrated liquid crystal display LCD provides a mapping of ultrasonic signals in the form of A scan as well as images of cross sections of ...

Page 4: ...al conditions The temperature from 15 to 50 C Relative humidity to 95 at a maximum temperature of 35 C The location of the flaw detector must be protected from direct exposure to dust moisture and corrosive environments The field strength of radio noise at the location of the flaw detector should not exceed the value of the infringing operation i e creator of the flaw detector at the amplifier inp...

Page 5: ...ntity of starts from 1 to 16 Digitally reconfigurable bandpass filter with tunable center frequency of the filter from 1 Hz to 10 MHz The range of variation of temporal sensitivity adjustment TVG 40 dB Number of control points TVG 15 The duration of the excitation pulse to the load from 0 0 to 0 5 µs The amplitude of the excitation pulse to the 50 Ohm load not less 100 200 300 Operating frequency ...

Page 6: ...ower is supplied from the following sources AC power from 100 to 250 V a frequency of 50 1 MHz AA batteries 1 5 V 3 pcs 5 Operating principle Operating principle of flaw detector is based on the ultrasonic contact NDT method which uses the properties of ultrasonic vibrations to reflect from the borders between materials with different acoustic impedance The ultrasonic transducer emits ultrasonic i...

Page 7: ...re located on top side of the devices body The device is powered by a three batteries type AA or the included in set external charger connected to the mini USB connector located on the bottom of the electronic unit of the flaw detector 5 2 Probes Flaw detector is designed to operate with the contact dual element and separated ultrasonic transducers with an operating frequency in the range from 1 t...

Page 8: ...bility of ultrasonic vibrations spread into tested object and reflect from internal defects and object sides The received signal is amplified and then converted into digital form processed by the microprocessor and the graphics and digitally displayed on the display Visualization of signals display of measurement results state of the flaw detector and other information are shown on the LCD Exterio...

Page 9: ... on off press and hold for at least 3 seconds to turn on or off the device freezing of the screen screen rotation 90 menu options cancel the action and return to the previous menu cursor movement decrease the selected parameter cursor movement cursor movement increase the selected parameter cursor movement enter To change the value of the selected parameter use the buttons or to select the paramet...

Page 10: ...tly lit by light sources The field strength of the external interference at the location of the flaw detector must not exceed values that violate its performance At high field strength of external interference must be taken to shielding placements of the flaw detector as well as its power supply and connected cables When operating from AC power to the flaw detector must be supplied mains with volt...

Page 11: ...les follow the instructions below Used in the device connectors consist of two parts the instrument socket and the cable plug Pic 6 2 Picture 6 2 Connector used in the device A method of connecting and disconnecting the plug and socket shown on Picture 6 2 1 When connecting user must ensured that the points of red color if any are plotted on the plug and the socket are jumped together CAUTION When...

Page 12: ... of the device is possible during battery charging Before switching on flaw detector connect transducer Connect the power adapter supplied with flaw detector to the corresponding connector If you connect the battery and power supply the flaw detector is powered from the power supply if the power supply is disconnected flaw detector automatically goes to battery supply To enable disable flaw detect...

Page 13: ...te connect to the right connector on top side of body of the flaw detector by inserting the cable connectors until its click Set the parameter group Probe parameter DUAL to ON 6 5 The main modes of operation of the flaw detector Measurement mode goes to the measurement Archive mode displays all stored measurement results and settings Settings mode in this mode you can set the following settings Ti...

Page 14: ...oup user gets access to the various parameters Group Parameters Main GAIN VELOCI TY SCALE RANGE DELAY F FILT FILTER REJECT Puls recv GAIN RANGE DELAY RECTIF Y POWER F FILTE R FILTER REJECT Gates GAIN GATE START WIDTH LEVEL PARAM 1 PARAM 1 PARAM 1 Functions GAIN DSG TVG REJECT PEAK B SCAN AVG Probe DUAL DELAY ANGLE X VAL FREQ PULSE TVG GAIN RANGE DELAY TVG CLEAR POINT POS dВ DGS GAIN DGS POINT POS ...

Page 15: ... 1000 to 9999 m s Accuracy of the measurement the depth coordinates of defects and thickness are depends on the accuracy of the velocity settings SCALE Selection of the display unit parameter settings Has two meanings microseconds µs and mm RANGE The duration of scanning depth sounding along the beam Adjustment range from 1 to 1000 µs Flaw detector processed only signals that are under scanning DE...

Page 16: ...he Delay specifies the time delay relative to the start of scanning of the probe pulse Setting range from 0 to 1000 µs RECTIFY Selecting the type of visualization of the signal Can take two values the POS HW and RADIO POWER Setting the level of the generator excitation It can take values 100V 150 V 200 V F FILT Selecting the central operating frequency of receiver path selection of frequency range...

Page 17: ...reshold level of the selected control gate Is given in of the screen height can take values from 0 to 100 of the screen height PARAM 1 Allows to select the measured value in the first block PARAM 1 Allows to select the measured value in the first block PARAM 1 Allows to select the measured value in the first block Functions GAIN Setting of gain of received path from 0 to 115 dB at 0 1 1 dB DGS Tur...

Page 18: ...cy of the ultrasonic transducer Has a range from 1 MHz to 10 MHz PULSE Setting the duration of the transducer pulse TVG GAIN Setting of gain of received path from 0 to 126 dB in steps of 0 5 5 dB RANGE The duration of scanning depth sounding along the beam Adjustment range from 1 to 1000 µs Flaw detector processed only signals that are under scanning DELAY The Delay specifies the time delay relati...

Page 19: ...POS Displays coordinates of the position of the current point of TVG The distance between two neighboring points is not less than 3 microseconds dВ Gain of the current point DGS The total value of all the points of the DGS not more 40 dB accuracy of setting 0 1 dB А LEVEL Allows to set the level amplitude of the reference signal mm2 Allows to set the value of the equivalent area of the reflector A...

Page 20: ...CONTR Setting the control area The maximum value of 20 dB but can not exceed the value of the search gate SEARCH Setting the level of the search area The maximum value is 20 dB ALARM Turn on off sound Block 1 PARAM 1 Allows to select the measured values in the first of three blocks PARAM 2 Allows to select the measured values in the first of three blocks PARAM 3 Allows to select the measured value...

Page 21: ...s of the signal in the A and B gates Xba the distance from the front edge of the signal in gate А Xbb the distance from the front edge of the signal in gate В Xipa the distance from the input signal in the gate А Xipb the distance from the input signal in the gate В Ya coordinate of signal depth in the gate А Yb coordinate of signal depth in the gate В Ya b the difference between the values of the...

Page 22: ...testing and download the selected file to continue working with the required settings Previously stored results are presented in a list and sorted by creation date To operate with the stored files use buttons or to select required file and press The drop down menu offers the following steps Actions Description List Return to the list of stored files Delete Delete the selected record PreView Viewin...

Page 23: ...FY and set one of available options POS HW or RADIO Typically the main mode of A scan is the POS HW 7 1 2 Selection of basic units The main flaw detectors units can be µs or mm To select the required units it is necessary in the group of parameters Main set the required value of the Units 7 2 Setting the transducer parameters Accuracy of measurement is depend on the correctness settings of transdu...

Page 24: ...e case of angle beam transducer is mounted on a corner prism For correct calculation of the coordinates it is necessary to compensate the moving time of ultrasonic vibrations through the protector prism 7 2 5 Installation of transducers arrow During testing with angle beam transducer coordinates is calculated from the output point of the beam In order to be able to take a measurement from the fron...

Page 25: ... percentage of the screen height 7 3 5 Envelope of the signal mode In some cases it may be necessary to detect the maximum of signal and get an envelope signal during scanning of reflectors To activate the envelope in group settings Functions set the required value of the PEAK ON or OFF 7 4 Setting of the flaw detector for measurements 7 4 1 Basic settings of control areas Gates Flaw detector has ...

Page 26: ...nge the parameter width to set required value 7 4 1 4 Enable sound alarm To enable disable the sound alarm when the level crossing control gate in the parameter group AFS in the parameter GATE set required strobe A or B and change the parameter ALARM to enable or disable the alarm 7 4 1 5 Setting the measurement mode in the control gate To set the measurement mode in the control gate in a group of...

Page 27: ...ol gate To set additional levels of control in parameter group AFS set the required parameters CONTR and SEARCH for the required control gate On the display of the device will appear additional levels of control and search control gate below basic level area 7 4 2 Setting the display of the measured parameters 7 4 2 1 Basic principles of the display of the measured parameters All parameters measur...

Page 28: ... ultrasonic vibrations in the material of tested object To set the velocity of ultrasonic vibrations in the tested object in the group of parameters Main select VELOCITY and set the required value 7 6 The display mode signal as B Scan Presentation the results of ultrasonic testing in the form of a cross section of the tested object perpendicular to the surface and parallel to the direction input s...

Page 29: ...cult to detect For these cases in the device is implemented the averaging mode which can be done by 2 4 8 and 16 signals To activate the averaging in the group of parameters Functions select and activate the parameter AVG and set required number of averaging Caution when the averaging mode activated it is reduced frequency of refreshing of signal on the display 7 8 Measurement mode with signal acc...

Page 30: ...e measurement is saved as a separate file Enter the file name by using the virtual keyboard Moving the cursor over the keyboard is carried out by pressing selecting the required symbol is carried out by pressing the button After entering the file name press 8 2 Downloading the configuration settings of the device or transducers from the archive To load a previously saved device settings configurat...

Page 31: ...ducer made using a standard sample SO 2 To measure delays in the prism of transducer it is necessary to get a first reflected signal the first ground signal on a standard sample SO 2 on the side of 59 mm and put this signal into one of the control gates for example gate A Configure the display of the measured parameters display the value of the propagation time along the beam or propagation time r...

Page 32: ...reflected signal from the radiused surface at the standard sample SO 3 and put this signal into one of the control gates for example gate A Configure the display of the measured parameters display the value of the propagation time along the beam for the required control gate in this example La Time of propagation of ultrasonic vibrations in the prism of angle beam transducer in microseconds equals...

Page 33: ...probes Value of the angle is specified on the marks of the corner scale opposite the output point of ultrasonic beam Picture 10 3 Standard sample SO 2 9 4 Measurement of transducers arrow To find output point 0 of ultrasonic beam of angle beam transducer put probe on central mark 0 Pic 10 4 and with small movements find position corresponding to the maximum echo signal Output point is located exac...

Page 34: ...ay value in the prism and set the angle for the angle beam transducer described above Select the place on the product or on sample of the same material in which can be made thickness measurement of the sample using appropriate transducer Set the control gate adjust the display the thickness of tested object Mechanically with satisfying accuracy make measurement of real thickness at the point of co...

Page 35: ...rial f frequency of transducer R radius of lateral drilling x depth of the defect r length of the passage of ultrasonic vibrations to the defect along the beam λ v f the length of the wave in the material r0 the length of near gate of transducer π 3 1415 constant Sp effective area of transducer Lpr length of the path in the prism vpr velocity of ultrasonic vibrations in a prism Equivalent area of ...

Page 36: ...uting 11 1 Use the device with care Any wrong using may result in the violation of the present technical specifications and thus lead to the manufacturer warranty cessation 11 2 Always check the integrity of the cables information processing unit and transducers Provide immediate replacement of the damaged parts by the original ones These operations must be performed by skilled personnel 11 3 Do n...

Page 37: ...horized service location and the Buyer shall bear risk of loss during shipping to the service location and Seller all risks during delivery to the Buyer In order to exercise its rights the Buyer shall inform the Seller as soon as possible after the date when such defect appeared 12 2 Prepare technically grounded reclamation document and send it together with the hardness tester to the guarantee se...

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