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3 Krautkramer USM 33 Issue 01, 01/2007

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5 Issue 01, 01/2007

6 Issue 01, 01/2007

7 Issue 01, 01/2007

8 Issue 01, 01/2007

9 Introduction 1 Krautkramer USM 33 Issue 01, 01/

10 Introduction 1.1 Safety Information The USM 33 has been designed and tested according to DIN EN Part 1, 2002, Safety requirements for electrical measuring, control and lab equipment, and was technically in perfectly safe and faultless condition when leaving the manufacturig works. In order to maintain this condition and to ensure a safe operation, you should urgently read the following safety information before putting the instrument into operation.! Attention: The USM 33 is an instrument for materials testing. Any use for medical applications or other purposes is not allowed! The USM 33 may only be used in industrial environments! The USM 33 is waterproof according to IP 54. The USM 33 can be operated with batteries or a power supply unit. Batteries Safety inforfation For the battery operation of the USM 33, we recommend the use of a lithium-ion battery. You should only use the products recommended by us for the battery operation. You can charge the lithium-ion battery withi n the instrument itself or in an external battery charger. As soon as you connect the power supply unit to the USM 33, the battery power supply is interrupted. If a lithium-ion battery is inserted, the charging process starts automatically when you connect the instrument to the mains supply. Please refer to chapter 3.1 on power supply, and to chapter 7 on how to handle batteries. Software According to the current state of the art, software is never completely free from errors. Before using any software controlled test equipment, please make sure that the required functions operate perfectly in the intended combination. The power supply unit has the electrical safety class II. 1-2 Issue 01, 01/2007 Krautkramer USM 33

11 Safety information Introduction Defects/errors and exceptional stresses 1.2 Important information on ultrasonic testing If you have reason to believe that a safe operation of your USM 33 is no longer possible, you have to disconnect the instrument and secure it against unintentional reconnection. Remove the batteries if necessary. A safe operation is e.g. no longer possible : if the instrument shows visible damages, if the instrument no longer operates perfectly, after prolonged storage under adverse conditions (e.g. exceptional temperatures and/or especially high air humidity, or corrosive environmental conditions), after being subjected to heavy stresses during transportation. Please read the following information before using your USM 33. It is important that you understand and observe this information to avoid any operator errors that might lead to false test results. This could result in personal injuries or damage to property. Preconditions for testing with ultrasonic test equipment This operating manual contains essential information on how to operate your test equipment. In addition, there are a number of factors which affect the test results. A description of these factors would go beyond the scope of an operating manual. The following list therefore only mentions the three most important conditions for a safe and reliable ultrasonic inspection: A safe operation is e.g. no longer possible the operator training; the knowledge of special technical test requirements and limits; the choice of appropriate test equipment. Krautkramer USM 33 Issue 01, 01/

12 Introduction Operator training The operation of an ultrasonic test device requires a proper training in ultrasonic test methods. Proper training comprises for example adequate knowledge of: the theory of sound propagation; the effects of sound velocity in the test material; the behavior of the sound wave at interfaces between different materials; the propagation of the sound beam; the influence of sound attenuation in the test object and the influence of surface quality of the test object. Lack of such knowledge could lead to false test results with unforeseeable consequences. You can contact for example NDT societies or organizations in your country (DGZfP in Germany; ASNT in the USA), or also GE Inspection Technologies, for information concerning existing possibilities for the training of ultrasonic inspectors as well as on the qualifications and certificates that can finally be obtained. Important information on ultrasonic testing Technical test requirements Every ultrasonic test is subject to specific technical test requirements. The most important ones are: the definition of the scope of inspection choice of the appropriate test method; the consideration of material properties; the determination of limits for recording and evaluation. It is the task of those with overall responsibility for testing to ensure that the inspector is fully informed about these requirements. The best basis for such information is experience with identical test objects. It is also essential that the relevant test specifications be clearly and completely understood by the inspector. GE Inspection Technologies regularly holds specialized training courses in the field of ultrasonic testing. The scheduled dates for these courses will be given to you on request. 1-4 Issue 01, 01/2007 Krautkramer USM 33

13 Important information on ultrasonic testing Limits of testing The information obtained from ultrasonic tests only refers to those parts of the test object which are covered by the sound beam of the probe used. Any conclusions from the tested parts to be applied to the untested parts of the test object should be made with extreme caution. Such conclusions are generally only possible in cases where extensive experience and proven methods of statistical data acquisition are available. The sound beam can be completely reflected from boundary surfaces within the test object so that flaws and reflection points lying deeper remain undetected. It is therefore important to make sure that all areas to be tested in the test object are covered by the sound beam. Ultrasonic wall thickness measurement All ultrasonic wall thickness measurements are based on a time-of-flight measurement. Accurate measurement results require a constant sound velocity in the test object. In test objects made of steel, even with varying alloying Introduction constituents, this condition is mostly fulfilled. The variation in sound velocity is so slight that it is only of importance for high-precision measurements. In other materials, e.g. nonferrous metals or plastics, the sound velocity variations may be even larger and thus affect the measuring accuracy.. Effect of the test object s material If the test object s material is not homogeneous, the sound may propagate at different sound velocities in different parts of the test objects. An average sound velocity should then be taken into account for the range calibration. This is achieved by means of a reference block whose sound velocity corresponds to the average sound velocity of the test object. If substantial sound velocity variations are to be expected, then the instrument calibration should be readjusted to the actual sound velocity values at shorter time intervals. Failure to do so may lead to false thickness readings. Krautkramer USM 33 Issue 01, 01/

14 Introduction Effect of temperature variations The sound velocity within the test object also varies as a function of the material s temperature. This can cause appreciable errors in measurements if the instrument has been calibrated on a cold reference block and is then used on a warm or hot test object. Such measurement errors can be avoided either by warming the reference block to the same temperature before calibrating, or by using a correction factor obtained from tables. Measurement of remaining wall thickness The measurement of the remaining wall thickness on plant components, e.g. pipes, tanks and reaction vessels of all types which are corroded or eroded from the inside, requires a perfectly suitable gauge and special care in handling the probe. The inspectors should always be informed about the corresponding nominal wall thicknesses and the likely amount of wall thickness losses. Important information on ultrasonic testing In present-day test practice, there are basically two different methods of flaw evaluation: If the diameter of the sound beam is smaller than the extent of the flaw, then the beam can be used to explore the boundaries of the flaw and thus determine its area. If, however, the diameter of the sound beam is larger than the size of the flaw, the maximum echo response from the flaw must be compared with the maximum echo response from an artificial flaw provided for comparison purposes. Flaw boundary method The smaller the diameter of the probe s sound beam, the more accurately the boundaries (and therefore the flaw area) can be determined by the flaw boundary method. If, however, the sound beam is relatively broad, the flaw area determined can substantially differ from the actual flaw area. Care should therefore be taken to select a probe which will give a sufficiently narrow beam at the position of the flaw. 1-6 Issue 01, 01/2007 Krautkramer USM 33

15 Important information on ultrasonic testing Echo display comparison method The echo from a small, natural flaw is usually smaller than the echo from an artificial comparison flaw, e.g. circular disc flaw of the same size. This is due, for instance, to the roughness of the surface of a natural flaw, or to the fact that the beam does not impinge on it at right angles. If this fact is not taken into account when evaluating natural flaws, there is a danger of underestimating their magnitude. In the case of very jagged or fissured flaws, e.g. shrink holes in castings, it may be that the sound scattering occurring at the boundary surface of the flaw is so strong that no echo at all is produced. In such cases, a different evaluation method should be chosen, e.g. use of the backwall echo attenuation in the evaluation. The distance sensitivity of the flaw echo plays an important part when testing large components. Attention should be paid here to choosing artificial comparison flaws which are as far as possible governed by the same distance laws as the natural flaws to be evaluated. Introduction The ultrasonic wave is attenuated in any material. This sound attenuation is very low, e.g. in parts made of finegrained steel, likewise in many small parts made of other materials. However, if the sound wave travels larger distances through the material, a high cumulative sound attenuation can result even with small attenuation coefficients. There is then a danger that echoes from natural flaws appear too small. For this reason, an estimate must always be made of the effects of attenuation on the evaluation result and taken into account if applicable. If the test object has a rough surface, part of the incident sound energy will be scattered at its surface and is not available for the test. The larger this initial scattering, the smaller the flaw echoes appear, and the more errors occur in the evaluation result. It is therefore important to take the effect of the test object s surfaces on the height of the echo into account (transfer correction). Krautkramer USM 33 Issue 01, 01/

16 Introduction 1.3 USM 33 family USM 33 is a lightweight and compact ultrasonic flaw detector especially suitable for locating and evaluating material defects; measuring wall thicknesses; saving and documenting test results. Different instrument versions USM 33 family USM 33 is available in several versions, designed for different applications: USM 33 Lemo Standard version for probe connectors of Lemo type ; USM 33 BNC Standard version for probe connectors of BNC type; With its frequency range from 0.5 to 20 MHz and a maximum calibration range of 10 m (steel), USM 33 is designed for use on large workpieces and in high resolution measurements. A R D A R 1-8 Issue 01, 01/2007 Krautkramer USM 33

17 USM 33 Family Special features Low weight (1.8 kg including lithium-ion battery) and compact size; Waterproof instrument case with protection class IP 54; Long operating time (> 8 hours) by means of lithium -ion battery with internal and external charging possibility; Handy equipped with a non-slip, ratcheting prop-up stand, also used as handle; Two independant gates for accurate wall thickness measurements from the workpiece surface up to the first echo, or between two backwall echoes, including measurement on coated workpieces with a resolution of 0.01 mm (up to 100 mm), referred to steel; Magnify gate: spreading of the gate range over the entire screen width; Introduction Color display of gates for an easier distinction; Easily recognizable reflection geometry when using angle-beam probes by the variation of A-scan or background color at every deflection point; Data memory: 200 data sets, and documentation possibility via a printer; Increased calibration range: up to 9999 mm (steel), depending on the frequency range; Semiautomatic two point calibration; Pulse repetition frequency variable in ten steps to avoid phantom echoes when testing large workpieces; Signal display mode: full-wave rectification, positive half-wave or negative halv-wave and radio frequency; Display of 4 readings plus 1 reading zoomed in the A-scan, user-configurable; 5.7", 1/4 VGA-TFT color display to display the digitized signals ( pixels, mm ); Krautkramer USM 33 Issue 01, 01/

18 Introduction 1.4 How to use this manual The present operating manual applies to all instrument versions of the USM 33. Differences in the functions or setting values are always marked. How to use this manual The specifications/technical Specifications according to EN for the USM 33 family can be found in the attachment at the end of this operating manual. Before operating the USM 33 for the first time, it is absolutely necessary that you read the chapters 1, 3 and 4 of this manual. They will inform you about the necessary preparations of the instrument, give you a description of all keys and screen displays, and explain the operating principle. In doing this, you will avoid any errors or failures of the instrument and be able to use the full range of instrument functions. You will find the latest changes to this operating manual in chapter 10 Changes. It describes corrections that have become necessary at short notice and have not yet been included in the general manual. If no corrections have become necessary, this chapter is empty Issue 01, 01/2007 Krautkramer USM 33

19 Layout and presentation in this manual 1.5 Layout and presentation in this manual To make it easier for you to use this manual, all operating steps, notes, etc., are always presented in the same way. This will help you find individual pieces of information quickly. Attention and Note symbols! Attention: The Attention symbol indicates peculiarities and special aspects in the operation which could affect the accuracy of the results. Note: Note contains e.g. references to other chapters or special recommendations for a function. Listings Listings are presented in the following form: Variant A Variant B... Operating steps Introduction Operating steps appear as shown in the following example: Loosen the two screws at the bottom. Remove the cover.... Krautkramer USM 33 Issue 01, 01/

20 1-12 Issue 01, 01/2007 Krautkramer USM 33

21 Standard package and accessories 2 Krautkramer USM 33 Issue 01, 01/

22 Standard package and accessories This chapter informs you about the standard package and the accessories available for the USM 33. It describes accessories included in the standard package, recommended accessories. 2-2 Issue 01, 01/2007 Krautkramer USM 33

23 Standard package Standard package and accessories 2.1 Standard package Product code Description Order number USM33 Lemo Packages Compact Ultrasonic Flaw Detector, basic version EXA24 with Lemo-1-TRIAX connectors, consisting of USM 33 Lemo Transport case AC Power supplier/battery charger Li-Ion battery Shoulder bag Manufacturer s certifcate User manual in English Krautkramer USM 33 Issue 01, 01/

24 Standard package and accessories Standard package Product code Description Order number USM33 BNC Packages Compact Ultrasonic Flaw Detector, basic version with BNC connectors, EXAZZ consisting of USM 33 BNC Transport case AC Power supplier/battery charger Li-Ion battery Shoulder bag Manufacturer s certifcate User manual in English Issue 01, 01/2007 Krautkramer USM 33

25 Standard package Standard package and accessories Product code Description Order number EXA24 USM33 Lemo EXAZZ USM33 BNC EXQCH Transport case EXQDK AC Power supplier/battery charger or EXQEM Li-Lion Battery EXQFO Shoulder Bag Manufacturer s certifcate User manual in Chinese User manual in English Probe SAC Krautkramer USM 33 Issue 01, 01/

26 Standard package and accessories Standard package Product code Description Order number Probe SAC Remove the Probe SAC 45-4 etc Probe SAC Probe SAC Probe cable(bnc to Lemo-00) Probe cable(lemo-1 to Lemo-00) Issue 01, 01/2007 Krautkramer USM 33

27 Recommended accessories Standard package and accessories 2.2 Recommended accessories Product code Description Order number EXQDK AC Power supplier/battery charger or EXQEM Li-Lion Battery EXQFO Shoulder Bag UD 20 PC cable, 25-pin (PC), 9-pin (instrument) UD 31 PC cable, 9-pin (PC), 9-pin (instrument) UD 30 Seiko Printer cable, 9-pin (instrument)/9-pin (printer) UD 32 Epson Printer cable, 9-pin (instrument)/25-pin (printer) Adapter 25/9-pin for printer cable UD 19-1 on USM 35X Serial-to-parallel printer cable (Patton Model 2029) UM 200 W UltraDOC data communication software for USM U 100 W UltraDOC PZ-USM Calibration certificate according to EN Epson LX Matrix printer for mains operation, single sheet and continuous stationary Seiko DPU Thermal printer for mains and battery operation Note: Please refer to separately published probe catalog of GE Inspection Technologies for probe selection. Krautkramer USM 33 Issue 01, 01/

28 2-8 Issue 01, 01/2007 Krautkramer USM 33

29 Initial start-up 3 Krautkramer USM 33 Issue 01, 01/

30 Initial start-up Power supply 3.1 Power supply The USM 33 can be operated with an external power pack adaptor or with batteries. You can connect the USM 33 to the mains supply system even if it carries batteries. The battery power is then automatically interrupted. A R D A R Operation using the power supply unit Mains connection The power supply unit is delivered with two different power cables for Euro and USA standard. Connecting the instrument Connect the USM 33 to the mains socket-outlet using the corresponding power supply unit. The plug receptacle is at the top left of the USM 33. Push the Lemo plug of the power supply unit into the plug receptacle until it snaps into place with a clearly audible click. 3-2 Issue 01, 01/2007 Krautkramer USM 33

31 Power supply When pulling off the Lemo plug, withdraw the metal bushing on the plug first in order to release the lock. Initial start-up Close the battery compartment and fasten the attachment screws. The power supply unit is automatically set to any nominal voltage between 90 VAC and 240 VAC. Operation using batteries Use only a lithium battery. It has a high capacity and consequently ensures a longer operating time of the instrument. Inserting batteries The battery compartment is situated at the instrument back; the lid is fastened with 2 attachment screws. Loosen the two attachment screws of the battery compartment; Lift the lid off upward; Insert the battery into the battery compartment; Krautkramer USM 33 Issue 01, 01/

32 Initial start-up Power supply Checking the battery charger of lithium-ion batteries The lithium-ion battery is equipped with a battery charge indicator. The battery charge indicator is situated at the front right of the battery. Four LEDs indicate the charge level of battery. Check the battery charge before inserting the battery into the instrument. The number of LEDs that are on has the following meaning: 4 LED s battery charge % 3 LED s battery charge 75 51% 2 LED s battery charge 50 26% 1 LED battery charge 25 10% 1 LED flashing battery charge <10% Battery charge indicator In the measurement line of the USM 33, a if the battery charge is low. Note: appears If the icon for low battery charge appears, you should urgently close your test job and exchange the batteries. You should take replacement batteries with you if you aim to carry out measurements on site. Note: You can also check the battery charge even if the battery is located in the battery compartment of the instrument. 3-4 Issue 01, 01/2007 Krautkramer USM 33

33 Power supply Charging the batteries You can charge the lithium-ion battery either directly in the instrument or by means of an external battery charger. Internal charging Requirement: Lithium-ion battery, order number Power supply/charger unit, order number or If a battery is located in the instrument, the charging process is started automatically when you connect the plug-in power supply unit. You can carry out ultrasonic inspections and charge a battery at the same time. Initial start-up The LED display on the plug-in power supply unit indicates the status of the charging process. The charging time is 10 hours with a simultaneous ultrasonic inspection. If the instrument is not being used for ultrasonic inspections, the charging time is 8 hours. This charging time applies to ambient temperatures from 25 to 30 C. Please take into consideration that the batteries are not charged to their full capacity at higher temperatures. Krautkramer USM 33 Issue 01, 01/

34 Initial start-up Power supply green LED yellow LED red LED Status off flashing off no battery detected off flashing dark/bright flashing bright/dark charging at low power off on off quick charging phase 1 flashing dark/bright flashing bright/dark off quick charging phase 2 on off off battery charged off off flashing bright/dark temperature error, auto-reversible off off on charging error, permanent 3-6 Issue 01, 01/2007 Krautkramer USM 33

35 Connecting a probe 3.2 Connecting a probe To prepare the USM 33 for operation, you have to connect a probe to it. Any Krautkramer probe can be used for the USM 33, provided the appropriate cable is available and the operating frequency is within an adequate range.! Attention: Receiver Initial start-up If this is not taken into account, the consequence would be a mismatching which may lead to considerable power losses or even to echo waveform distortions. Transducer The USM 33 is available with the probe connectors LEMO-1-TRIAX or BNC. The probe is connected to the sockets at the top right on the instrument casing. Both connector sockets are equally suitable (connected in parallel) for connecting probes equipped with only one ultrasonic element (ultrasonic transducer) so that it does not matter which one of the two sockets is used. A R D A R When connecting a dual-element (TR) probe (having one transmitter element and one receiver element), or two probes (of which one is transmitting and the other one receiving), attention should be paid to connecting the transmitter element to the right-hand socket (transmitter, marked with black circle at the rear of the instrumentcase) and the receiver element to the left-hand socket (receiver, marked with red circle). Krautkramer USM 33 Issue 01, 01/

36 Initial start-up 3.3 Starting the USM 33 Switching on To start the USM 33, press the switch-on key. The start display of the USM 33 appears; here you will also see the current software version of the instrument. The instrument carries out a self-check and then switches over to stand-by mode. The settings of all function values and the basic settings (language and units) are the same as when the instrument was last switched off. Reset If any functions can no longer be operated after a warm start, or if you want to reset the instrument to the basic setup, then you should carry out a cold start by simultaneously pressing the and one of the keys(gain setting key which lies to the top-left of the screen). Starting the USM33 The cold start message Basic Initialization is displayed. The instrument is initialized and reset to its basic setup (dialog language: English, for more details on how to select the language, please refer to chapter 4).! Attention: All saved data are deleted. Information lines in the startup screen You can enter two lines (each with up to 39 characters) for information purposes in the startup screen. For this use the remote function (codes I1 and I2, refer to chapter 8). 3-8 Issue 01, 01/2007 Krautkramer USM 33

37 Principles of operation 4 Krautkramer USM 33 Issue 01, 01/

38 Principles of operation Operator s controls 4.1 Operator s controls A: Gate alarm R: Reserved (for future use) D: Dual on Keys for selecting a function Direct gain setting Gain step setting A R D A R Key for changing the operation level On/Off key Keys for selecting a function group 4-2 Issue 01, 01/2007 Krautkramer USM 33

39 Screen Display Principles of operation 4.2 Screen display The USM 33 has a digital screen for the display of A-scan in the normal mode A-scan in the zoom mode The zoom mode is activated in the 5th menu line (Test Menu) that can be accessed with a long press on the Menu Change key. A press on any key below the screen (function group selection) will unzoom the screen. Note: CLR SKIP ZOOM COPY FREZ The screen display always shows the gain and the adjusted db step value. All other functions are locked in zoom mode. Krautkramer USM 33 Issue 01, 01/

40 Principles of operation Screen display Functions on the display The names of the five function groups are displayed at the bottom of the screen. The currently selected function group is highlighted. Indicated at the right of the display, next to the A-scan, are the functions of the corresponding function group. The display of the functions disappears in the zoom mode. 4-4 Issue 01, 01/2007 Krautkramer USM 33

41 Screen Display Principles of operation Other displays The measurement line below the screen display shows values of settings, measured values, and status indications. As an alternative, a scale can be shown here, giving an overview of the echo positions. Note: Every measurement value can also be shown in an enlarged display at the top right corner of the A-scan (setting in the function group MEAS, function S-DISP). Note: You can configure the four positions of the measurement line for set and measured values as required (function group MSEL). A Gate Amplitude height(%) B Gate Amplitude height(%) Freeze A Gate Sound path B Gate Sound path Battery Capacity Krautkramer USM 33 Issue 01, 01/

42 Principles of operation Keys 4.3 Keys For changing between operation levels For selection of the function groups A R D A R Left Gain setting or gain step setting. Press left and right arrow simultaneously to toggle. Right Function parameter setting. Press left and right arrow simultaneously to toggle coarse and fine adjustment. Power on/off 4-6 Issue 01, 01/2007 Krautkramer USM 33

43 Operating concept 4.4 Operating concept Second operating level Principles of operation USM 33 is an easy-to-use instrument. It has five operating levels, and you can change between them by pressing key. Note: Long pressing You will recognize your currently active operating level by the number on the separation line between the first and the second function group. First operating level BASE PULS key will change to the fifth level. agat bgat FREZ MEM CAL TRIG DAC Third operating level MEAS LCD MSEL LOG1 LOG2 Fourth operating level MEM LCD CFG1 CFG2 Fifth operating level CLR SKIP ZOOM COPY FREZ FREZ FREZ FREZ Krautkramer USM 33 Issue 01, 01/

44 Principles of operation Setting the functions Shown below the A-scan are five function groups that you can directly select using the corresponding key. The selected function group is highlighted and the corresponding four functions are displayed next to the A- scan on the right. You can likewise directly select the individual functions using the corresponding keys. Functions with double assignments Some functions have double assignments. You will recognize the functions with double assignments by an arrow (icon >) after the function name. Coarse and fine adjustment of functions You can choose between coarse and fine adjustment for some functions. You can toggle between these two adjustment modes by pressing the left and right arrow of corresponding key. The fine adjustment is identified by an asterisk preceding the function value. Operating concept The following functions offer a choice between coarse and fine adjustment: Function RANGE MTLVEL D-DELAY astart awidth bwidth S-REF1 S-REF2 ANGLE THICKNE DIAMET Function Group BASE BASE BASE agat agat bgat CAL CAL TRIG TRIG TRIG 4-8 Issue 01, 01/2007 Krautkramer USM 33

45 Important basic settings Principles of operation 4.5 Important basic settings Selecting the language Select the language in which the function names should be displayed on the screen in the function DIALOG (Function group CFG1). English and Chinese languages are available. Selecting units In the function UNIT (function group CFG1) you can choose your favorite units between mm or inch.! Attention: Select your units immediately when you start working with the USM 33 because if you change the unit, all the current settings are deleted, and the basic setup is loaded again. In order not to delete anything by accident, a safety prompt is displayed in the measurement line. If you are sure that you want to change the unit, press the key belonging to the function UNIT one more time.the unit is now changed, the current data are deleted. If you want to abort the process, press any other key. The previous setting is kept in that case. Setting the date The date is saved together with the test results. You can set it in the function DATE (function group CFG2). Select right keys to select Year/Month/Date, while select left keys to adjust related value. Attention: Please take into account that the USM 33 only indicates the year with two digits. Setting the time The function TIME (function group CFG2) serves for setting the current hour of time. It is saved together with the test results. Select right keys to select Hour/ Minute/Second, while select left keys to adjust related value. You should always make sure that you are using the correct time settings. Test results may otherwise be falsified. Krautkramer USM 33 Issue 01, 01/ !! Attention:

46 Principles of operation 4.6 Basic settings of the display The equipment of the USM 33 includes a high-resolution color display. You can optimize the display settings to your individual viewing habits and to the operational environment. Selecting the color scheme You can use the function SCHEME (function group LCD) to choose one of four color schemes. The color scheme determines the color of all displays and that of the background. You cannot vary the colors of gates because they are fixed as follows: Setting the lighting Basic settings of the display Use the function LIGHT (function group LCD) to set the display lighting. You can choose between the default lighting max. and a lighting in the economy mode min.. Note: The economy mode reduces the current consumption and consequently increases the operating time in battery operation. Gate A red Gate B green Note: All color schemes are suitable for indoor use. For outdoor use, we recommend the color schemes 3 and Issue 01, 01/2007 Krautkramer USM 33

47 Operation 5 Krautkramer USM33 Issue 01,01/

48 Operation Overview of the functions 5.1 Overview of the functions The functions of the USM 33 are combined to form function groups on five operating levels. There is an additional fifth operation level for the Data Logger. Press the key to change between the operating level 1~4; Press the key longer for operating level 5; Press the key to select the function group shown above it; Press the key on the right side to select the function shown next to it; The Gain function is always directly available via left key; You will also find an overview of the function groups and their functions on the fold-out page. First operating level BASE 1 PULS agat Second operating level MEM 2 CFG2 TRIG Third operating level bgat DAC MEAS LCD 3 MSEL LOG1 LOG2 Fourth operating level MEM LCD 4 CFG1 CFG2 FREZ FREZ FREZ FREZ Each operating level contains five function groups. Fifth operating level You will recognize your currently active operating level by the number on the separation line between the first and the second function group. CLR 5 SKIP ZOOM COPY FREZ 5-2 Issue 01, 01/2007 Krautkramer USM 33

49 Overview of the functions Function groups first operating level BASE PULS agat bgat FREZ The functions that find here are required for the basic adjustment of the screen displays. Combined in this group are the functions that serve for the adjustment of pulser and receiver. All functions for setting the gate A can be found in this group. All functions for setting the gate B can be found in this group. Whenever you select this function, the display automatically freezes.(also available in function groups 2~5) Operation Function groups second operating level MEM These functions serve for storing, loading and deleting of data sets. CAL This function group makes functions for the semi-automatic calibration available to you. TRIG DAC Combined in this group are the functions required for angle beaming using angle beam probes for the display of a (reduced) projection distance and depth position of a reflector (for plane-parallel and circular curved test components). This is the function group where you can set the functions for the DAC. Krautkramer USM33 Issue 01,01/

50 Operation Function groups third operating level MEAS In this group, you can define the measuring point, select a parameter for the zoomed m- easured value display in the A-scan as well as for the setting of the Magnify function, and you can select different settings for the A-scan. MSEL LOG1 This is where you configure your measurement line. You can choose one display for each of the four positions. These functions serve for setting the data logger. Overview of the functions Function groups fourth operating level LCD CFG1 CFG2 This is the function group where you can set the LCD contrast, color scheme, backlight and measurement line values. Functions for the configuration: dialog language, printer driver and assignment of the copy mode. Functions for the configuration: date, time, alarm horn and unit. LOG2 These functions serve for creating or deleting data logger data. 5-4 Issue 01, 01/2007 Krautkramer USM 33

51 Overview of the functions Operation Function groups fifth operating level CLR The measurement value will be deleted at the actual location which is defined with ROW and COLUMN. SKIP The measurement value will be marked as skipped at the actual location which is defined with ROW and COLUMN. ZOOM The A-scan display can be zoomed in full screen. COPY The measurement value will be stored at the actual location which is defined with ROW and COLUMN. Krautkramer USM33 Issue 01,01/

52 Operation Setting the gain 5.2 Setting the gain,en- This function, operated via the left-hand ables you to quickly and directly set the gain. Defining the db incrementation for gain You can use the left-hand to select a specfic increment for setting the gain. (For steps setting press the simultaneously, then adjust as required.) You can use the gain to adjust the required sensitivity in order to control the echo amplitudes. Press left-hand to set the gain. The current gain is indicated in the top left corner of the screen. You have a choice between 6 steps: 0.0 db (locked) 0.5 db 1.0 db 2.0 db 6.0 db 12 db Note: The setting 0.0 db locks the gain in this way preventing any accidental change of setting. 5-6 Issue 01, 01/2007 Krautkramer USM 33

53 Adjusting the display range(function group BASE) Operation 5.3 Adjusting the display range Note: (function group BASE) The function group BASE enables you to make the basic adjustment of the display range. The display on the screen must be adjusted for the material to be tested (function MTLVEL) and for the probe used (function P-DELAY). In order to accurately adjust the material velocity and the probe delay, please read the section Calibrating the USM 33, chapter 5.7, beforehand. RANGE (Display range) You can adjust the range for your measurement in RANGE. If required, go to the first operating level via. Select the function group BASE. Coarse adjustment: from 0.5 mm (9999) mm in even steps Fine adjustment: up to 9.99 mm in steps of 0.01 mm up to 99.9 mm in steps of 0.1 mm up to 999 mm in steps of 1 mm up to 9999mm in steps of 10 mm Krautkramer USM33 Issue 01,01/

54 Operation If required, press the next to it simultaneously to adjust between coarse and fine adjustment. Adjust the required value by means of key next to it. Adjusting the display range(function group BASE)! Attention: Always ensure that the function MTLVEL is correctly set. The USM 33 calculates all range and distance indications on the basis of the value adjusted here. MTLVEL (Sound velocity) Use MTLVEL to set the sound velocity within the test object. You can use sound velocities between 1000 and m/s. Coarse adjustment, in steps as follows (m/s): Fine adjustment: press beside MTLVEL simultaneously: in steps of 1 m/s 5-8 Issue 01, 01/2007 Select the function MTLVEL. If required, toggle between coarse and fine adjustment. Adjust the required value by means of the righthand. D-DELAY (Display starting point) Here you can choose whether to display the adjusted range (for example 250 mm) starting from the surface of the test object, or in a section of the test object starting at a later point. This allows you to shift the complete screen display and consequently also the display starting point. Krautkramer USM 33

55 Adjusting the display range(function group BASE) Operation If the display should for example start from the surface of the test object, the value in D-DELAY must be set to 0. Coarse adjustment -10 mm mm in even steps Fine adjustment up to 99.9 mm/9.999" in steps of 0.01 mm up to 1024 mm/10" in steps of 0.1 mm Select the function D-DELAY. If required, toggle between coarse and fine adjustment. Adjust the value for the display starting point by pressing next to it. P-DELAY (Probe delay) Every probe has a delay line between the transducer element and the coupling face. This means that the initial pulse must firstly pass through this delay line before the sound wave can enter the test object. You can compensate for this influence of the delay line in the function P-DELAY. Note: If the value for P-DELAY is not known, read the section Calibrating the USM 33, chapter 5.7, in order to determine this value. Select the function P-DELAY. Adjust the value for the probe delay by pressing next to it. Krautkramer USM33 Issue 01,01/

56 Operation 5.4 Adjusting the pulser (function group PULS) You will find all functions for the adjustment of the pulser in the function group PULS. If required, go to the first operating level. Select the function group PULS. DAMPING low POWER low DUAL off RECTIFY full-w Adjusting the pulser(function group PULS) DAMPING (Probe matching) This function serves for matching the probe. You can use it to adjust the damping of the probe s oscillating circuit and to consequently change the height, width and resolution of the echo display. low This setting has a lower damping effect and produces higher and broader echoes. high This setting reduces the echo height but mostly also produces narrow echoes with higher resolution. Select the function DAMPING. Set the required value by means of the right-hand Issue 01, 01/2007 Krautkramer USM 33

57 Adjusting the pulser(function group PULS) POWER (Intensity) Use the function POWER to set the pulser voltage. You can choose between two settings: high high voltage low low voltage The setting high is recommended for all inspections inwhich maximum sensitivity is important, e.g. for the detection of small flaws. Choose the setting low for broadband probes or if narrow echoes are required (better lateral resolution). Select the function POWER. Set the required value by means of the right hand. DUAL (Pulser-receiver separation) Operation You can use the function DUAL to activate the pulser receiver separation. off Single-element operation; the probe connection sockets are connected in parallel. on Dual mode for the use with dual-element (TR) probes; the left-hand socket (red) is connected with the amplifier input whereas the initial pulse is available at the right-hand socket (black). Select the function DUAL. Set the required value by means of the right hand. If the DUAL function is active, the LED D (dual) is on. Krautkramer USM33 Issue 01,01/

58 Operation RECTIFY(Rectification) You can select the rectification mode of the echo pulses according to your application in the function RECTIFY. You have the following options to choose from: full-w (= full-wave) All half-waves are displayed above the baseline. pos hw (= positive half-wave) Only positive half-waves are displayed. neg hw (= negative half-wave) Only negative half-waves are displayed. rf (= radio frequency) Only applies to the display range up to 50 mm (steel). Select the function RECTIFY. Set the required value by means of the right hand. Setting the gates(function groups agat and bgat) 5.5 Setting the gates (function groups agat and bgat) All functions for setting the (dual) gate are arranged in the function group agat and bgat. If required, go to the first operating level. Select the function group agat or bgat via Issue 01, 01/2007 Krautkramer USM 33

59 Setting the gates(function groups agat and bgat) Tasks of the gates It monitors the range of the test object where you expect to detect a flaw. If an echo exceeds or falls below the gate, an alarm signal is output via the LED A. Operation To make the assignment easier, the gates are displayed in different colors. You cannot vary the colors of gates because they are fixed as follows: Gate A red Gate B green The gates A and B are independent of one another. The gate chooses the echo for the digital time-off flight(tof) or amplitude measurement. The measured value is indicated in the measurement line(or S-Disp if selected). Note: Error alarms can be triggered under certain circumstances. These are caused by intermediate conditions in instrument operation occurring when the instrument is used, i.e. when function parameters are changed. Possible alarms occurring during instrument operation(setting of functions) are to be ignored. Display of gates alogic/blogic (Evaluation logic of the gates) This function allows you to choose the method for triggering the gate alarm.the alarm is output to the LED A on the front panel of the USM 33. There are three setting options available: off Evaluation logic off The alarm and measurement capability are switched off. The gate is not visible. pos Coincidence The alarm (LED A) is on if the preset response threshold of the gate is exceeded within the displayed range(a signal reaches the gate threshhold). neg Anticoincidence The alarm (LED A) is on if the preset response threshold of the gate is not reached within the displayed range(a signal falls below the gate threshhold). Krautkramer USM33 Issue 01,01/

60 Operation astart/bstart (Starting points of the gates) You can fix the starting point of the gates A or B within the adjustment range of mm/250". Select the function astart or bstart. Set the required value by means of the right hand. awidth/bwidth (Width of the gates) You can determine the gate width within the range of mm/ ". Select the function awidth or bwidth. Set the required value by means of the right hand. Setting the gates(function groups agat and bgat) athrsh/bthrsh (Response and measurement threshold of the gates) You can determine the threshold value of the gates within the range of 5% to 90 % screen height for triggering the LED alarm if this value is exceeded or not reached, depending on the setting of the alogic /blogic function. In the RF mode, the threshold can be additionally set from 90 % to 90%. Select the function athrsh or bthrsh. Set the required value by means of the right hand Issue 01, 01/2007 Krautkramer USM 33

61 Data saving(function group MEM) 5.6 Data saving (function group MEM) You will find all functions for storing, recalling and deleting complete data sets in the function group MEM. If required, go to the second operating level. Select the function group MEM. Operation A data set contains all instrument settings as well as the A-scan. This means that whenever you recall a stored data set, your instrument is again set up exactly the same as it was at the moment when the data set was stored. This makes each one of your tests reproducible. You will find the following functions: SET-# selecting number of a data set RECALL recalling a stored data set STORE storing a data set DELETE deleting a data set The functions are described in the order in which you need them during your work. Krautkramer USM33 Issue 01,01/

62 Operation Data saving(function group MEM) Storing a data set You can save your current setup to a data set. Select the function SET-#. Use the right-hand to set the number where you would want to store the current data set(1 to 200). Select the function STORE. Use the right-hand to set it to on. The USM 33 stores the current data set. When the storage process is completed, the function STORE is automatically reset to off. Note: The asterisk (*) before a selected data set number indicates that this data set is already occupied. It is not possible to overwrite an occupied data set; select another data set which is still empty, or delete the occupied data set. To avoid loss of data e.g. in case of a software update you should save the data sets to a PC. All active entries in the information table are automatically allocated to the data set being stored (see Chapter 5.14 Dataset management). Deleting a data set An occupied data set is marked with an asterisk (*) before the data set number. You can delete these data sets if you no longer need them. Select the function SET-#. Use the right-hand to set the number of the data set that you want to delete. Select the function DELETE. Use the right-hand to set it to on. The measurement line will then prompt: Delete data set? Confirm by pressing the corresponding key one more time (all other keys would abort the process). The data set is now deleted; the asterisk preceding the data set number is no longer there. The function DELETE is automatically reset to off Issue 01, 01/2007 Krautkramer USM 33

63 Data saving (function group MEM) Deleting all data set You can delete all data sets if you no longer need them. Select the function DELETE. Note: Double assignment of the function DELETE/DELALL. Press the corresponding key repeatedly to toggle between functions via pressing simultaneously. Use the right hand to set it to on. The measurement line will then prompt: Delete all data sets? Confirm by pressing the corresponding key one more time (all other keys would abort the process). Operation All data sets are now deleted. The function DELETE is automatically reset to off. Recalling a stored data set You can recall a stored data set; your instrument will then be provided with all the test relevant technical features that existed at the moment of the setup. A frozen display of the stored A-scan appears.! Attention: If a saved data set is loaded, the current instrument setup is lost. If necessary, save the current instrument setup to a new data set before loading a saved data set. Select the function SET-#. Use the right-hand to set the number of the data set that you want to recall. Select the function RECALL. Use the right-hand to set it to on. The measurement line will then prompt: Recall data set? Krautkramer USM33 Issue 01,01/

64 Operation Data saving (function group MEM) Confirm by pressing the corresponding key one more time (all other keys would abort the process). The data set is now loaded and the current setup is overwritten. When the loading process is completed, the function RECALL is automatically reset to off. Note: The gate for surveying the echo can be moved in the recalled A-scan. However, as the evaluation is made in the frozen A-scan, the measurement resolution is only 0.5 % of the adjusted calibration range Issue 01, 01/2007 Krautkramer USM 33

65 Calibrating the USM Calibrating the USM 33 Calibrating the display range Before working with the USM 33, you have to calibrate the instrument: you have to adjust the material velocity and display range and allow for the probe delay depending on the material and dimensions of the test object. To ensure a safe and proper operation of the USM33, it is necessary that the operator be adequately trained in the field of ultrasonic testing technology. Below you will find some examples of common calibration methods for certain test tasks. In addition, the USM 33 has a semi-automatic calibration function which is described as Case B: With unknown material velocity. Choosing the measuring point Operation The sound path measurement in the calibration process or in the subsequent echo evaluation process depends on the choice of the measuring point which can be set either to flank, or to peak in the USM 33. In principle, the peak measurement should be preferred because the measured distances do not depend on the echo height in that case. However, there are application cases in which the flank measurement is either specified,or it must be applied for technical reasons, e.g. in many tests using dual-element (TR) probes.! Attention: In any case, the setting of the measuring point must always be identical for the calibration and for the subsequent test application. Otherwise measurement errors might occur. Krautkramer USM33 Issue 01,01/

66 Operation Calibrating the USM 33 Calibration with straight- and angle-beam probes Case A: With known material velocity Calibration process Set the known material velocity in MTLVEL (function group BASE). Couple the probe to the calibration block. Set the required display range in RANGE (functiongroup BASE). The calibration echo must be disp-layed on the screen. Position the gate on one of the calibration echoes until the sound path of the echo is indicated in the measurement line. After this, change the adjustment of the function P-DELAY (function group BASE) until the correct sound path for the selected calibration echo is indicated in the measurement line. Example: You are carrying out the calibration for the calibration range of 100 mm/5" via the function group BASE using the calibration block V1 (thickness 25 mm/1") which is laid flatwise. Set RANGE to 100 mm/5". Set the known material velocity of 5920 m/s(233"/ms) in MTLVEL. Set the gate so that it is positioned on the first calibration echo (from 25 mm/1"). Read the sound path in the measurement line. If this value is not equal to 25 mm/1", change the adjustment for the function P-DELAY until it is at 25 mm/1". This completes the calibration of the USM 33 to the material velocity of 5920 m/s (233 "/ms) with a calibration range of 100 mm/5" for the probe used Issue 01, 01/2007 Krautkramer USM 33

67 Calibrating the USM 33 Operation Calibration with dual-element (TR) probes Dual-element (TR) probes are especially used for wall thickness measurement. The following peculiarities must be taken into account when using these probes: Echo flank Most dual-element (TR) probes have a roof angle (transducer elements with inclined orientation toward the test surface). This causes mode conversions both at beam index (sound entry into the material) and at the reflection from the backwall, which can result in very jagged echoes. V-path error Dual-element (TR) probes produce a v-shaped sound path from the pulser via the reflection from the backwall to the receiver element. This so-called V-path error affects the measuring accuracy. You should therefore choose two wall thicknesses that cover the expected thickness measurement range for the calibration. In this way, the V-path error can be corrected to the greatest possible extent. Higher material velocity Due to the V-path error, a higher material velocity than that of the test material is given during calibration, especially with small thicknesses. This is typical of dual element (TR) probes and serves for compensation of the V-path error. With small wall thicknesses, the above-described effect leads to an echo amplitude drop which has to be especially taken into account with thicknesses less than 2 mm/0.08". A stepped reference block having different wall thicknesses is required for calibration. The wall thicknesses must be selected so that they cover the expected readings. Calibration process: We recommend to use the semiautomatic calibration function for the calibration with T/R probes. Set the required test range. Increase the probe delay (P-DELAY) until the two calibration lines are displayed within the range. Krautkramer USM33 Issue 01,01/

68 Operation Calibrating the USM 33 Example: Position the gate on the second calibration echo: Enter the distances (thicknesses) of the two calibration lines S-REF1 (20 mm) and S-REF2 (40 mm). Press to record the second calibration echo. Position the gate on the first calibration echo. The second echo is stored, the calibration is carried out, and the CAL function is reset to 0. The valid calibration is briefly confirmed and carried out. If you select the function group BASE, you can read the material velocity and probe delay. Press to record the first calibration echo Issue 01, 01/2007 Krautkramer USM 33

69 Calibrating the USM 33 Set the pulser and receiver functions according to the probe used and the test application. Set the function TOF (function group MEAS) to flank. Vary the gain so that the highest echo reaches approximately the full screen height. Set the gate threshold to the required height for measuring the sound paths at the echo flanks. Select the function group CAL. Enter the distances of the two calibration echoes in S-REF1 and S-REF2. Position the gate (function astart) on the first calibration echo. Press to record the first calibration echo. Couple the probe to the calibration block containing the second calibration line, and set the height so that it s about as high as the first calibration echo. Move the gate to the second calibration echo. Press to record the second calibration echo. The correct calibration is confirmed by the message Calibration is done. The material velocity and probe delay are set. The value of the CAL function goes back to 0. If necessary, check the calibration on one or several known calibration lines, e.g. using the stepped reference block VW. Note: Operation Always keep in mind that the measured value is determined at the intersection point of gate and echo flank when the function TOF was set to flank. A correct setting of the echo height and gate threshold is therefore decisive for accurate calibration and measurement! Calibrations or measurements in the peak mode are mostly not possible when using dual-element (TR) probes. As the echoes are often very broad and jagged, a clear echo peak cannot always be found in these cases. Krautkramer USM33 Issue 01,01/

70 Operation 5.8 Measuring General notes Please pay attention to the following notes when measuring with the USM 33. Condition for measurements is the correct instrument calibration (sound velocity, probe delay). All amplitude measurements are carried out at the highest or the first signal in the gate. All distance measurements are carried out at the intersection point of gate and the first echo flank (TOF = flank), or at the peak of the highest echo (TOF = peak). If the echo amplitudes do not exceed 5 % screen height all sound path and amplitude measurements will be suppressed. Thus, rapidly changing random measurements caused by the instrument s background noise are avoided. The following example shows the dependency of distance measurement on the echo waveform, i.e. on the height of the gate threshold and thus on the selection of the intersection point at the signal. The point of amplitude measurement is marked with a small upward triangle on the corresponding gate bar. The point of distance measurement is marked with a small downward triangle. Gate threshold at 20 % measured sound path: mm Gate threshold at 80 % measured sound path: Measuring 5-24 Issue 01, 01/2007 Krautkramer USM 33

71 Calculation of flaw position 5.9 Calculation of flaw position (function group TRIG) In the function group TRIG you will find the functions for setting the flaw position calculation when using angle beam probes. If required, go to the second operating level. Select the function group TRIG. The functions in the group TRIG enable to automatically calculate the (reduced) projection distance and the real depth of the flaw in addition to the sound path S, and to digitally display them in the measurement line. Projection distance PD: Distance of probe index (sound exit point) from the position of the flaw, projected on the surface Reduced projection distance rpd: Distance of the probe s leading face from the position of the flaw, projected on the surface Depth d: Distance between flaw position and surface Operation Note: Double assignment of the function X-VALU/COLOR. Toggle between the two functions by pressing simultaneously. Krautkramer USM33 Issue 01,01/

72 Operation When using angle-beam probes, the instrument can additionally calculate the sound path section or socalled leg L up to the next reflection point. This sound path section or leg can be displayed as the measured value La, Lb. ANGLE (Angle of incidence) Calculation of flaw position The ANGLE function enables you to adjust the angle of incidence of your probe for the material used. This value is required for the automatic calculation of the flaw position. Adjustment range: Select the ANGLE function. Use right hand to set the required value. X-VALUE (X-value of the probe) The function X-VALUE enables you to set the X-value (distance between the probe s leading face and probe index/sound exit point) of the probe used. This value is required for the automatic calculation of the reduced projection distance. Adjustment range: mm/ " Select the function X-VALUE. Use right hand to set the required value Issue 01, 01/2007 Krautkramer USM 33

73 Calculation of flaw position COLOR To make the orientation easier, the instrument is able to display the different sound path sections or legs in different ways. You can choose between two display modes: 1 The A-scan is shown in another color in every leg. Leg 1 in magenta Leg 2 in blue 2 The legs are shown as background shadings. off No legs are displayed. Select the function COLOR. Use the to set the required mode. THICKNE (Material thickness) Use the THICKNE function to set the material s wall thickness. This value is required for the automatic calculation of the real depth. Adjustment range: mm/ Select the THICKNE function. Use the to set the required value. Operation DIAMET (Outside diameter of the test object) You will need the DIAMET function for tests on circular curved surfaces, for example when testing longitudinally welded tubes. In order to make the USM 33 carry out the corresponding correction of (reduced) projection distance and depth, you should enter the outside diameter of your test object in this function. If you planto carry out the flaw position calculation for plane parallel (flat) test objects, the DIAMET function should be set to flat. Adjustment range: mm/ " flat Select the DIAMET function. Use the to set the required value. Also toggle between coarse and fine adjustment via pressing simultaneously. During fine adjusting, you can find the symbol in front of the no. Krautkramer USM33 Issue 01,01/

74 Operation Configuring the USM 33 for a test application 5.10 Configuring the USM 33 for a test application Besides the default settings for the instrument operation, you have to configure the USM 33 for calibration and test tasks. You will find the corresponding functions in the function groups MEAS, MSEL,LOG1, LOG2 and FREZ. In addition, you have to check the current time and date, and set them if required, so that they are correctly stored together with the test results. Please look up the function groups CFG1 and CFG2 for more functions for the general instrument setup. If required, go to the third operating level. Select the function group MEAS. TOF (Selecting the measuring point) The sound path measurement in the calibration process or in the subsequent echo evaluation process depends on the selected measuring point which can be adjusted either to flank, to peak in the USM33. The point of amplitude measurement is marked by a small upward triangle on the corresponding gate bar. The point of distance measurement is marked by a small downward triangle. Note: While DAC is active you can change the TOF mode from peak to flank Issue 01, 01/2007 Krautkramer USM 33

75 Configuring the USM 33 for a test application When adjusted to flank the sound path measurement is made at the point of intersection of the monitor gate with the rising flank of the highest echo in the gate. Operation In order to identify the points of measurement and to avoid misinterpretation two indicators were introduced per gate: The first triangle pointing downwards indicates the position of the measured sound path (distance), whereas the triangle pointing upwards marks the position of the measured amplitude. In TOF mode peak the sound path and amplitude measurement is made at the maximum of the highest echo in the gate. measured sound path: 19,44 mm amplitude: 94 %! Attention: The highest echo in the gate does not have to be the echo for which the sound path has been measured. This may lead to false echo evaluation! measured sound path: 19,65 mm amplitude: 95 % Krautkramer USM33 Issue 01,01/

76 Operation In principle, the peak measurement should be preferred because the measured distances do not depend on the echo height in that case. However, there are application cases in which the flank measurement is either specified, or it must be applied for technical reasons, e.g. in many tests using dual-element (TR) probes.! Attention: In any case, the adjustment of the measuring point for calibration and for the subsequent test use must always be identical. Otherwise measurement errors may occur. Select the TOF function. Use the to select the required setting. Configuring the USM 33 for a test application Sa Sa Sound path for gate A Sb Sb Sound path for gate B Sb-a ba Difference of single measurements for sound path gate B gate A Ha % Ha Echo height gate A in % screen height Hb % Hb Echo height gate B in % screen height Ha db ha Echo height gate A in db Hb db hb Echo height gate B in db R-start Rs Range start R-end Re Range end La La Number of legs in gate A Lb Lb Number of legs in gate B S-DISP (Zoomed display of reading) You can have a selected reading zoomed in the A- scan display. The following readings can be selected for the zoomed display (in the second column the indication of the readings in the measurement line): 5-30 Issue 01, 01/2007 Krautkramer USM 33

77 Configuring the USM 33 for a test application Only for flaw position calculation: Da Da Depth for gate A Db Db Depth for gate B Pa Pa Projection distance for gate A Pb Pb Projection distance for gate B Ra Ra Reduced projection distance for gate A Rb Rb Reduced projection distance for gate B Only for DAC: Ha %crv Ca Hb %crv Cb DAC db db Echo height gate A in % referred to curve Echo height gate B in % referred to curve db-value by which the DAC gain has been changed related to the reference gain(=instrument gain for the DAC echo on 80% screen height) - Selection the function S-DISP. - Use the right hand to select the required value for the zoomed display. Note: Operation If the selected Ha db Hb db does not display, the TOF must be PEAK. MAGNIFY (Gate spreading) The setting of the MAGNIFY function causes a spreading of the gate over the entire display width. You can choose the gate to be used for the magnify function. - Select the function NIFY. - Use the right hand to set the function to agate or bgate if you want to spread the range of gate A or B over the entire display range. A-Scan (Setting the A-scan) This function offers you several options for setting your A-scan. stndard Normal A-scan setting. The key effects a static freeze. envelop (echo dynamics) The echo envelope is shown as a dotted line additionally to the A-scan. Krautkramer USM33 Issue 01,01/

78 Operation Configuring the measurement line The configuration of your measurement line is carried out in the function group MSEL, this means that you can choose the reading for one of the four possible positions of the measurement line for active measured values to be displayed during the test. Configuring the USM 33 for a test application Setting the display In the function group LCD, you will find setting options for the display screen itself and for the echo display. If required, go to the fourth operating level. Select the function group LCD. If required, go to the third operating level. Select the function group MSEL. Functions of the function group MSEL: MEAS-P1 MEAS-P2 MEAS-P3 MEAS-P4 Measured values at positions 1 to Issue 01, 01/2007 Krautkramer USM 33

79 Configuring the USM 33 for a test application FILLED (Echo display mode) The function FILLED toggles between the filled and the normal echo display mode. The filled echo display mode improves the echo perceptibility due to the strong contrast, especially in cases where work pieces are scanned more quickly. Select the function FILLED. Use the right hand to set the function to on or off. SCHEME You have a choice between four color schemes. The color scheme determines the color of all displays and that of the background. You cannot vary the colors of gates because they are fixed as follows: Gate A red Gate B green Note: All color schemes are suitable for indoor use. For outdoor use, we recommend the color schemes 3 and 4. LIGHT (LCD backlight) Operation Y ou can choose between a lighting in the economy mode eco. and a brighter lighting full. for the display lighting. The economy mode is the default setting. Note: The economy mode reduces the current consumption and consequently increases the operating time in battery operation. Select the function LIGHT. Use the right hand to set the required lighting. SCALE (Configuring the measurement line) As an alternative to the measured values, the USM 33 enables to display a scale in the measurement line. The scale gives you an overview of the position of echoes.y ou have a c hoice between a dimensionless ten-division scale and a scale showing the real position of the echoes. Select the function SCHEME. Use the to choose the required color scheme. Krautkramer USM33 Issue 01,01/

80 Operation The following settings are possible: measval Display of measured values snd-pth Display of sound path scale div. Display of a dimensionless scale Select the function SCALE. Use the right hand to set the required display mode General configuration More functions for the basic configuration of the USM 33 may be found in the function groups CFG1 and CFG2. If required, go to the fourth operating level. Select the function group CFG1 or CFG2. Functions of CFG1 Dialog language Baud rate Analog output Printer selection Evaluation mode CFG2: Date Time Horn Unit In this function you can select the language for displaying the function names on the screen and for the test report. The following languages are available: Chinese English (default setting) Select the function DIALOG. Use the right hand to select the required language. In this function you can select the baud rate for the serial port transmission. You have a choice between 0,300, 600, 1200, 2400, 4800, 9600, 19200, 38400, and Baud. Select the function BAUD-R. General configuration DIALOG (Selecting the language) BAUD-R (Baud rate for transmission) Use the right hand to select the required baud rate Issue 01, 01/2007 Krautkramer USM 33

81 General configurations PRINTER (Printer for test report) In this function you can select the connected printer for printing out your test report. You have a choice between the following printer types: Epson DPU-41X DJ-1200 Note: For more details on the how to print out a test report, please refer to chapter 6 Documentation. Select the function PRINTER. Use the right hand to select the required r. printer. COPYMOD (Assignment of copy mode) When the key is pressed, data are output to the RS232 interface and transferred to a printer or a PC. You can use the function COPYMOD to choose the data to be transferred when the key is pressed. You have the following setting options: hardcpy Hardcopy of the screen contents report Test report with A-scan, all relevant settings for the inspection and space for hand-written remarks meas P5 The magnified value given at the right upper corner of the A-scan. pardump All instrument functions with the current settings datalog (only with Data Logger option) The selected job is printed out as a report including all measured values. off The key is deactivated. Operation Select the function COPYMOD. Use the right hand to set the required assignment for the key. Krautkramer USM33 Issue 01,01/

82 Operation DATE (Setting the DD,MM,YY) The date is saved together with the test results. You can set it in the function DATE (function group CFG2). General configurations Use the right-hand to select the value that you want to vary, e.g. the day. Use the left hand to vary the selected value. Use the right-hand to confirm. Setting the time The function TIME (function group CFG2) serves for setting the current hour of time. It is saved together with the test results.! Attention: Please take into account that the USM 33 only indicates the year with two digits. You should always make sure that you use correctly set values of date. Test results may otherwise be falsified.! Attention: You should always make sure that you are using the correct time settings. Test results may otherwise be falsified. Don t forget to manually set the time when changing from winter to summer time. The setting method can be referenced as date. If necessary, change to the fourth operation level. Select the function DATE in the function group CFG Issue 01, 01/2007 Krautkramer USM 33

83 General configurations Operation HORN! Attention: In this function, you can decide whether or not an accoustic alarm should be given in addition to the visual alarm (LED A). Select the function HORN. Use the right hand to set the horn to on or off. Note: Error alarms can be triggered under certain circumstances.these are caused by intermediate conditions in instrument operation occurring when the instrument is used, i.e. when function parameters are changed. Possible alarms occurring during instrument operation (setting of functions) are to be ignored. You should always make your decision on the units immediately when starting to work with the USM 33. If you change the unit, all current settings are deleted, and the basic setup is loaded. Select the function UNIT. Use the right hand to select the required unit. To avoid any accidental deleting of values, the measurement line will display a safety prompt: Change unit? If you are sure that you want to change the unit of measurement, press the corresponding key of the function UNIT. And the key would abort the process. The unit of measurement is now changed; the current data are deleted. UNIT (Selecting units of measurement) You can choose the required units between mm or inch in the function UNIT Issue 01, 01/2007 Krautkramer USM 33

84 Operation 5.12 Status symbols and LEDs Status symbols can be displayed in the line below the screen display to inform about certain settings and conditions of the USM 33. The LEDs above the display give you further information. Status symbols Symbol Description * Display is frozen, press again for active.! Data transfer active, (printing or remote control). Battery indicator Full battery charge Low battery charge Batteries must be charged LEDs Symbol A R D Status symbols and LEDs Description Gate alarm (Reserved for future use) Function DUAL (pulser-receiver separation) is active Issue 01, 01/2007 Krautkramer USM 33

85 Distance-amplitude curve(dac) Operation 5.13 Distance-amplitude curve (DAC) The DAC function is available as a fixed function in the second operating level on the USM33. Due to the angle of the sound beam spread and to the sound attenuation in the material the echo height of reflectors of equal size depends on the distance to the probe. A distance-amplitude curve, which is recorded with defined reference reflectors, graphically displays these influences. If you use a reference block having artificial flaws when recording a DAC you will be able to apply these echo amplitudes for the evaluation of discontinuities without any further correction. The reference block should be made of the same material as the test object. You will find the functions for the distance-amplitude curve in the function group DAC. If required, go to the second operating level. Select the function group DAC. DACMOD (Activating DAC) Y ou can use this function to activate the DAC. The following settings are available: off No DAC is active. Record A new DAC is recorded. DAC The already saved distance-amplitude curve is displayed on the screen. Krautkramer USM33 Issue 01,01/

86 Operation Select the function DACMOD. Use the right-hand to select the DAC setting. DACECHO (Recording or deleting DAC curve)! Attention: Before starting to record a DAC curve, the instrument must be correctly calibrated (ref. Section 5.7 Calibrating the USM 33). The moment a new curve is recorded, a possibly already existing curve must be deleted. If necessary, make sure that the old curve has been stored in a free data set before starting to record a new curve! Select the function DACMOD. Distance-amplitude curve(dac) Use the right hand to set the function to DAC. The function DACECHO is set to 0 since there is no previously recorded echo. Couple the probe to the reference block, and peak the first reference echo. Use the left hand to bring the echo to an amplitude about 80% screen height. Select the function astart, and then move the gate so that the selected echo is the highest of the echo sequence within the gate range. Press DACECHO to record the first reference echo. The instrument gain will automatically change until the DAC echo in gate A reaches 80% screen height (+/ 0,3 db). The function DACECHO is set to 1 to indicate that the first reference echo has been successfully recorded. Peak the next reference echo, and repeat the recording ding process for other curve points. The number in the function DACECHO is increased by 1 with each recording Issue 01, 01/2007 Krautkramer USM 33

87 Distance-amplitude curve (DAC) Note: If the message Echo is not valid appears, the reference point could not be recorded. Check the gate position as well as the height of the reference echo and repeat the recording. As soon as you have recorded at least two curve reference points. Y our DAC is already active (please see previous section. You can record a maximum of 10 curve reference points. Deleting reference points or the complete DAC You can delete the reference point which was recorded last in each case, or the complete DAC. Select the function DACECHO. Press the beside DACECHO. The message Do you want to delete the DAC echo? appears in the measurement line. Press the key in order to delete the last echo, or press another key in order to cancel the process of deleting. In this way, you can record one or several new reference points. astart> Operation It has two functions at this moment. One is for gate A start position and another is for Auto80 after pressing at same time then for ON or OFF through adjustment. OFFSET (Distance of multiple DAC) You can activate a multiple DAC and at the same time determine the distance from the registration curve. The default setting 6.0 db generates four other curves at -12 db, -6 db, +6 db, and +12 db from the registration curve. The setting 0 generates only the registration curve. Any setting different from 0 generates four other curves at a set distance from the original curve. For a better distinction in multiple DACs the registration curve is displayed as a bold line. Adjustment range: 0 db db in steps of 0.5dB Select the function OFFSET. Use the right hand to select the required setting. Krautkramer USM33 Issue 01,01/

88 Operation OFFSET> has two functions. One is to set data directly. Another is to press at same time to to define different data for each curves. Adjustment range: -24 db~24 db in steps of 0.5 db. Data management(log1, LOG2) 5.14 Data management (LOG1, LOG2) The USM 33 onboard datalagger can register more than thickness reading in its memory. The memory can be set in 20 individual jobs. Each job consists in a grid from 1 to 40 rows and from A to Z columns. Job s grid has to be set in LOG 1 menu: Note: DAT-LOG has to be set to Off Issue 01, 01/2007 Krautkramer USM 33

89 Data management(log1, LOG2) Once the job is defined, the memory has to be alloated. Just move to LOG 2 menu and use the CREATE function. Your Job is now ready for use, and LOG1 menu shows JOB number with ready at Position ROW1 and COLUMN A. In order to start recording, set DAT-LOG to: row if you wish to record data first in vertical direction. column if you wish to record data first in horizontal direction. Operation The datalogge r s position is indicated in the function group on the right side of the screen ROW and COLUMN data are pointing the active cell of the job. Navigation in the job is possible via the keys controlling these two parameters. Take a long key press and the instrument will switch to the test menu as below. CLR SKIP ZOOM COPY FREZ CLR Pressing on the key below CLR will remove an already recorded reading in the active location. SKIP Pressing on the key below SKIP will save obstr at the pointer location. This function has to be used to differentiate a forgotten location where the UT measurement cannot be conducted due to access problem. COPY Pressing on the key below COPY will save S-DISP reading at the pointer location and increment location in the DAT-LOG direction first. Krautkramer USM33 Issue 01,01/

90 Operation Data management(log1, LOG2) Once you arrive at the first limit of the first direction, the instrument will automatically increase the other direction. Example: You have set Job 1 with 5 rows and Column up to C. If DAT-LOG is set to Column the instrument will ask for: Location number Row Column Comment 1 1 A 2 1 B 3 1 C The instrument will automatically increment Row and restart with the first column. 4 2 A C 5-44 Issue 01, 01/2007 Krautkramer USM 33

91 Documentation 6 Krautkramer USM 33 Issue 01, 01/

92 Documentation 6.1 Printing data Direct printing of the following data via the RS232 interface is possible using the USM33: Test report containing the A-scan and the adjustment data A-scan Single reading(position 1 of the measurement line) Function list(including all current settings) Data Logger To do this, you need a printer with serial interface RS 232 a printer cable Preparing the printer The transfer parameter settings are fixed in the USM 33 and cannot be changed. Baud 9600 Word length 8 data bits Parity none Printing Printing data - Connect USM33 to printer with serial cable; - Select the fourth operating level; - Select the CFG1 function; - Then set Baud rate and printer type; - Select the setting: hardcpy, report, meas P1 (measured value at position 1), pardump (function list), datalog (Data Logger job including measured values), special (several A-scans on one page) under COPYMOD. - Long press to the fifth operating level; - Select COPY to start print. Symbol! will be shown at the right-bottom of the screen to indicate correct printing. Note: Before printing, go to LOG1 under the third operation level and set DAT-LOG to OFF. 6-2 Issue 01, 01/2007 Krautkramer USM 33

93 Maintenance and care 7 Krautkramer USM 33 Issue 01, 01/

94 Maintenance and care Care of the instrument 7.1 Care of the instrument Clean the instrument and its accessories using a moist cloth. Only use the following recommended instrument cleaners: water, a mild household cleaner or alcohol (no methyl alcohol). Note: Do not use any methyl alcohol, solvents, or dye penetrant cleaners! The plastic parts can be damaged or embrittled by this. 7-2 Issue 01, 01/2007 Krautkramer USM 33

95 Care of the batteries 7.2 Care of the batteries Care of the batteries Capacity and life of batteries mainly depend on the correct handling. Please therefore observe the tips below. You should charge the batteries in the following cases: before the initial startup after a storage time of 3 months or longer after frequent partial discharge! Attention: Maintenance and care You should only use the batteries recommended by us and the corresponding battery charger. An improper handling of the batteries and of the battery charger may cause explosion hazard. Note: Used batteries are special waste and have to be disposed of according to legal requirements! Charging the batteries You can charge the lithium-ion battery either directly in the instrument or by means of the external battery charger (order number or ) recommended by us. In this regard, please pay attention to the information on the operation of the battery charger. Krautkramer USM 33 Issue 01, 01/

96 Maintenance and care Maintenance 7.3 Maintenance The USM 33 requires basically no maintenance.! Attention: Repair work may only be carried out by members of authorized Service staff of GE Inspection Technologies. 7-4 Issue 01, 01/2007 Krautkramer USM 33

97 Recycling Maintenance and care 7.4 Recycling General view of the device In the following you find an instrument overview as well as guidelines and notes for recycling and waste disposal of the components Krautkramer USM 33 Issue 01, 01/

98 Maintenance and care Recycling No. Material Description 1 Lithium-ion battery Battery inside the battery compartment at the bottom of the instrument. In order to open the compartment the quick acting closures have to be actuated. 2 LCD - display Fluorescent lamps of the LCD display contain trance amounts (0 0.5 mg) of Mercury (Hg) 3 >PC< / Brass Upper equipment cover Polycarbonat >PC< with pressed in brass thread insert. 4 Stainless steel Handle complete 5 >PC< Holder for handle 6 Stainless steel Ratchet disk 7 >PC< / TPU rubber Housing lower part 8 Aluminium Front panel 7-6 Issue 01, 01/2007 Krautkramer USM 33

99 Recycling Maintenance and care Materials for separate disposal In the following you find guidelines and notes for removing materials/components, which must be removed and treated separately Krautkramer USM 33 Issue 01, 01/

100 Maintenance and care Recycling No. Material Description 1 In order to remove the LCD display the upper housing has to be withdrawn first. After loosening six screws on the bottom side and one further in batterycompartment, the complete upper housing can be taken away. 2 In order to open the compartment at the bottom of the equipment, the quick acting closures have to be actuated. 3 Lithium-ion battery Inside the battery compartment. Can easily be removed after opening the battery cover. 4 LCD - display Fluorescent lamps of the LCD display contain trance amounts (0 0.5 mg) of Mercury (Hg). 7-8 Issue 01, 01/2007 Krautkramer USM 33

101 Recycling Maintenance and care Further materials and components In the following you find notes for dismantling materials/components, which can disturb several recycling processes, and materials/components for which benefits can normally be achieved Krautkramer USM 33 Issue 01, 01/

102 Maintenance and care Recycling No. Material Description 1 >PC< / Brass Upper equipment cover Polycarbonat with pressed in brass thread insert. 2 Circuit boards Circuit board in upper housing, under it battery-pcb 3 Stainless steel Handle, rubber tube can be removed 4 >PC</Rubber Lower housing 5 >PC< Battery cover 7-10 Issue 01, 01/2007 Krautkramer USM 33

103 Recycling Maintenance and care Recycling data of master device Material Weight Description approx(kg) Materials/components, which must be removed and treated separately LCD display 0.22 Fluorescent lamps of the LCD display contain trance amounts (0 0.5 mg) of Mercury (Hg) Lithium-ion battery 0.31 Located inside the battery compartment Subtotal 0.53 Materials/components, which can disturb certain recycling processes >PC</brass 0.17 Upper equipment cover Polycarbonat >PC< with pressed in brass thread insert. PCB 0.33 Main PCB in the upper housing; battery PCB in the lower housing >PC</rubber 0.21 Lower housing and battery cover Subtotal 0.71 Materials/components, through which benefits can normally be achieved: Stainless steel 0.15 Handle Aluminium 0.15 Front panel Rubber 0.05 O-ring handle cover keypad sealing Subtotal 0.35 Krautkramer USM 33 Issue 01, 01/

104 Maintenance and care Recycling Material Weight Description approx(kg) Composite materials*: Keypad 0.20 Foil/aluminium/glass/spring steel/stainless steel Subtotal 0.20 Total 1.79 (including battery) * Materials/components, which cannot be separated into mono materials by destructive mechanical processes Issue 01, 01/2007 Krautkramer USM 33

105 Interfaces and peripherals 8 Krautkramer USM 33 Issue 01, 01/

106 Interfaces and peripherals Interfaces 8.1 Interfaces The USM 33 presents different interfaces for the connection of external units and for the data exchange. All interfaces are located at the instrument front. The following figure gives an overview of the position of interfaces. 8-2 Issue 01, 01/2007 Krautkramer USM 33

107 Interfaces Interfaces and peripherals 1 BNC or LEMO-1-TRIAX socket for the connection of the transmitter probe (black ring) 2 BNC or LEMO-1-TRIAX socket for the connection of the receiver probe (red ring) 3 RS 232, serial interface, 9-way Sub-D socket 4 12V DC Mains connection socket, 4-way LEMO-0-B socket Krautkramer USM 33 Issue 01, 01/

108 Interfaces and peripherals RS 232 Interface 8.2 RS 232 interface The USM 33 has a RS 232 interface for remote control and documentation (report printout). Contact assignment of the Sub-D socket Contact Designation Signal direction Level 1 unassigned 2 RXD input RS TXD output RS DTR output RS ground RS DSR input RS RTS output RS CTS input RS unassigned View of the 9-way Sub-D socket Note: Switch off the instrument before connecting a cable to the RS 232 socket or before withdrawing any plugs. 8-4 Issue 01, 01/2007 Krautkramer USM 33

109 Data exchange Interfaces and peripherals 8.3 Data exchange Activation of serial communication The USM 33 is equipped with the serial interface RS 232 for bi-directional data communication with a PC. When you connect the instrument with a PC you can: remote control the instrument via the PC, transfer A-scans for documentation, transfer instrument settings in ASCII format, transfer reports from stored datasets, read and write datasets in binary format. Connecting a printer or a PC You can connect the USM 33 to a printer or a PC using the special Krautkramer cables: PC: UD 20 (25-way) or UD 31 (9-way) Printer: UD 31 (Seiko DPU) or UD 32 (Epson) Please refer to chapter 2. Printing data The USM 33 enables a direct printout of data, for example a report including the echo display and the instrument settings. Please refer to chapter 6. After connecting the instrument to the PC you must run a software that opens the serial port. This can either be a commercial terminal program (e.g. Microsoft Hyper Terminal) or a customised program like UltraDOC. Make sure that the serial communication parameters on the PC are identical to those of the instrument. The data transmission parameters are as follows: Baud rate: 0 (no transmission), 300, 600, 1200, 2400, 4800, 9600 (default), 19200, 38400, and Word length: 8 data bits (fixed) Parity: none (fixed) Stop bits: 2 (fixed) The settings on the USM 33 apply to most of the printers and PCs. To ensure a perfect communication, please check the settings of the connected peripherals and adjust them to the parameters of the USM 33. Krautkramer USM 33 Issue 01, 01/

110 Appendix 9 Krautkramer USM 33 Issue 01, 01/

111 Appendix 9.1 Function directory Level Function group Function Description 1 BASE Level Function group Function Description awidth Width of the gate A athrsh Threshold of the gate A Function display RANGE Setting of the range in which the bgat measurement is made. blogic Evaluation logic of the gate A MTLVEL Setting of the material sound velocity bstart Starting point of the gate B D-DELAY Setting of the display start bwidth Width of the gate B P-DELAY Compensating for the probe bthrsh Starting point of the gate B delay line 2 MEM PULS SET-# Number of the data set DAMPING Damping of the probe s RECALL Retrieving a stored data set oscillating circuit STORE Saving the data set agat POWER DUAL PRF-MOD alogic astart Setting the power of the initial pulse Separation of pulser and receiver Setting the pulse repetition frequency Evaluation logic of the gate A Starting point of the gate A CAL DELETE S-REF1 S-REF2 astart Deleting a stored data set Reference echo 1 for calibration Reference echo 1 for calibration Starting point of the gate A 9-2 Issue 01, 01/2007 Krautkramer USM 33

112 Function display Level Function group Function Description Function Level group Function Description Appendix TRIG DAC 3 MEAS CAL ANGLE X-VALUE THICKNE DIAMET Semiautomatic calibration Entry of the angle for calculating the projection distance (angle-beam probes) Entry of the distance between probe index (sound exit point) and leading face of the angle-beam probe Entry of workpiece thickness Change between planar and circular testing components DACMODE Activating/Deactivating the DAC DACECHO Recording of a reference echo astart Starting point of the gate A OFFSET Offset for multiple DAC TOF S-DISP Selection of gate s measuring point Zoomed display of a selected parameter Krautkramer USM 33 Issue 01, 01/ MSEL LOG1 LOG2 MAGNIFY A-SCAN MEAS-P1 MEAS-P2 MEAS-P3 MEAS-P4 JOB-# ROW COLUMN DAT-LOG JOB-# CREATE DELETE DEL-ALL Gate spreading Settings of the A-scan Selection of measured values at four positions of the measurment line Select a job number Set the number for row Set the number for column Select the Data Logger mode Select a job number for creating or deleting Create the job Delete selected job Delete all jobs

113 Appendix Level Function Function Description group 4 LCD FILLED Selecting the echo display mode SCHEME Choice of a color scheme for the screen display LIGHT Choice of lightning for the display SCALE Choice of display mode for the Function directory Function Level group Function Description 5 CLR Delete measured value of selected job SKIP ZOOM COPY FREZ Skip measured value of selected job Zoom the display in full screen Store measurement value at defined job Freeze the displayed image on the screen measurement line CFG1 DIALOG Selecting the language BAUDE Baud rate for serial port transmission PRINTER Selecting the printer for the test report COPYMOD Selection of print mode CFG2 DATE TIME HORN UNIT Current date Current time Switching the acoustic alarm signal on/off Selecting the unit of measurement mm or inch 9-4 Issue 01, 01/2007 Krautkramer USM 33

114 EC declaration of conformity Appendix 9.2 EC declaration of conformity We declare that the USM 33 conforms to the following European directives: 89/336EEC (Electromagnetic compatibility) The conformity of the above-mentioned product with the regulations of the directive 89/336EEC is proven by the observance of the standard specifications EN 55011: 1998 Class A, Group 2 and EN : 1997 EN : The conformity of the above-mentioned product with the regulations of the directive 73/23/EEC, amended by the directive 93/68/EEC, is proven by the observance of the standard specification EN : Krautkramer USM 33 Issue 01, 01/

115 Appendix 9.3 Manufacturer/ Service addresses The USM 33 is manufactured according to state -of-the-art methods using high-quality components. Thorough in-process inspections or intermediate tests and a quality management system certified to ISO 9001 ensure an optimum quality of conformance of the instrument. Should you nevertheless detect an error on your instrument, switch the instrument off and remove the batteries. Inform your local GE Inspection Technologies Service indicating the error and describing it. Keep the shipping container for any repairs possibly required which cannot be made on the spot. If there is anything special that you would like to know about the use, handling, operation and specifications of the instruments, please contact your nearest GE Inspection Technologies representative or directly. USM 33 Ultrasonic Portable Flaw Detector is manufactured by GE Inspection Technologies(Shanghai) Co.Ltd. Address 421 Hongcao Road, Shanghai, China Post Code Phone: Fax: Free Hotline: Website Manufacturer/Service addresses Issue 01, 01/2007 Krautkramer USM 33

116 Spare part lists Appendix 9.4 Spare part lists Krautkramer USM 33 Issue 01, 01/

117 Appendix Spare part lists 9-8 Issue 01, 01/2007 Krautkramer USM 33

118 Spare part lists Appendix Krautkramer USM 33 Issue 01, 01/