Epson USN 52L- Manual

Krautkramer USN 52R/USN 52L Issue 05, 02/00 1-1 Introduction 1 Krautkramer USN 52R/USN 52L Issue 05, 02/00 1-1 Introduction 1

1-2 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 1.1 Safety information USN 52R and USN 52L have been designed and testedaccording to DIN EN 61 010 Part 1, March 1994, Safetyrequirements for electrical measuring, control and labequipment, and was technically in perfectly safe andfaultless condition w...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 1-3 Software Based on the present state of the art software cannever be completely error-free. That is why software-controlled instruments should bechecked before use to see if the necessary functionsoperate perfectly in the provided combination. Therefore...

1-6 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Effect of temperature variations The velocity of sound within the test object also variesas a function of the temperature of the material. Thiscan cause appreciable errors if the instrument has beencalibrated on a cold calibration block and is then use...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 1-7 Echo display comparison method The echo from a small natural flaw is usually smallerthan the echo from an artificial comparison flaw (e.g.circular disc reflector) of the same size. This is due, forinstance, to the roughness of the surface of a naturalf...

1-8 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 1.3 USN 52R/USN 52L USN 52R/USN 52L are lightweight, compact ultrasonicflaw detectors which is especially well suited for • locating and evaluating material flaws, • measuring wall thicknesses. • documenting all test results and readings. USN 52R: • hi...

1-10 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 1.4 Remarks on this manual H Note : This manual applies to the two USN 52 versionsUSN 52R and USN 52L. The examples shown refer tothe USN 52R; however, since function groups and func-tions of the two instruments are basically the same, theexamples als...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 1-11 Layout of this manual In order to simplify use of this manual, the operatingsteps are always presented in the same way. This en-ables you to find information quickly. Descriptions of functions Chapter 5 shows the functions that you require for vari-ou...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 2-1 Standard package and accessories 2 Krautkramer USN 52R/USN 52L Issue 05, 02/00 2-1 Standard package and accessories 2

Krautkramer USN 52R/USN 52L Issue 05, 02/00 2-3 2.1 Standard package Product type Description Order no. USN 52R Portable ultrasonic flaw detectorwith high-resolution EL display,with probe connector LEMO 00 34 900 with probe connector BNC 34 901 USN 52R DGS Portable ultrasonic flaw detectorwith high-...

2-4 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 2.2 Required accessories Product type Description Order no. UN 655 Power supply/battery charger unit 34 941 NCA 2-6 Set of six NiCd batteries 25 812 2.3 Recommended accessories UN 777 Case with light shield and strap 34 094 UN 762 Light shield 34 093 U...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 2-5 Product type Description Order no. GCH1 Adaptor DB 25P (gender changer) to connect 13 648 the USN 52/PC cable to a printerwith serial interface (EPSON) GCH3 Adapter (gender changer) to connect the 34 797 USN 52/PC cable to a Seiko printer (DPU 414) UNA...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 3-1 Setting into operation 3 Krautkramer USN 52R/USN 52L Issue 05, 02/00 3-1 Setting into operation 3

3-4 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Using the battery charger The power supply/charger unit for USN 52R/USN 52Lautomatically adjusts itself fo the existing supply volt-age in the range from 80 to 250 V. The connection for the combined power supply/chargerunit is at the rear of the instru...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 3-5 3.3 Probe connection The probe connections are on the lower right of thefront panel. Connect straight-beam probes to the red socket (Re-ceive - right). With T/R probes, connect the pulser cableto the green socket (left) and the receiver cable to thered...

3-6 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Reset If you are not able to operate the functions after a warmstart, you must carry out a cold start: – Press A and K together. – Keep A pressed until the A-scan appears. A Attention: The instrument has now the factory-preset default set-ting. The dia...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 4-1 Basics of operation 4 Krautkramer USN 52R/USN 52L Issue 05, 02/00 4-1 Basics of operation 4

4-2 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 4.1 USN 52R and USN 52L The present operating manual applies to both instru-ment versions. Operating concept, operating levels,function groups and functions of the two instrumentsare basically the same. The only difference is the type and size of the d...

4-4 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 4.2 Display A-scan display The digital display shows the A-scan either • in the normal mode with measured-value overlay - the value highlightedin the measurement line is overlaid on the display. Basics of operation Display • in the enlarged mode displa...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 4-5 Functions on the display Selected function groups are shown on the display: • In the first operating level one selected function group is displayed in addition to the A-scan. • In the second operating level there are 3 groups compiled into one function...

4-6 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Indications beneath the A-scan Measurement line The current measurement results are displayed here.The contents of this line depend on the settings of thefunctions MEASURE, TOF, AMPLITUDE, FILE MODE, ANGLE and X-VALUE. Basics of operation Display Statu...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 4-7 Menu line The function groups in the first operating level are dis-played here. The selected group is inverted. Display Basics of operation Krautkramer USN 52R/USN 52L Issue 05, 02/00 4-7 Menu line The function groups in the first operating level are d...

4-8 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 4.2 Keypad Function keys – Below: for function group selection and for switching over between operating levels. – To the right: for changing instrument settings and values. Basics of operation Keypad Special keys – for special instrument functions 4-8 ...

4-10 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 4.3 Operational concept The functions are divided into two operating levels. – In the first operating level you will find the most frequently used functions divided into seven functiongroups. You can toggle between the function groupsas you like. – Th...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 4-11 Selection of measured value for enlargeddisplay Using U in the measurement line select the value which is to be enlarged on the display. With U you also can toggle between graticule scaling in scale divisions (Div.) and display of the RANGE/DELAY in t...

4-12 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 4.5 Keys for special functions Important functions and special functions can be se-lected via special keys on the right-hand side of theoperating field: Key Function D dB-Step – Changes step size for the gain setting B dB-REF – Stores reference echo E...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 4-13 4.6 Important basic settings Set language In the LANGUAGE function in the second operating level you can select the language in which the namesof the functions are to be displayed. The following languages are available: • German • Swedish • English • ...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-1 Operation 5 Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-1 Operation 5

5-2 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 5.1 Function overview(first operating level) In the first operating level you will find all functionsrequired for basic adjustment of the USN 52R/USN 52L.They are compiled into function groups allocated tocertain operation tasks. In order to change bet...

5-6 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Setting the receiver All functions for adjustment of the receiver can befound in the function group RCVR. – With JC go to the function group RCVR. FREQ. Frequency With this function you can set the operating frequency. You can choose between four setti...

5-10 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Gate adjustment All functions for adjustment of Gates a and b are con-tained in the function group GATE. – With JC go to function group GATE. USN 52R/USN 52L make the two gates a and b avail-able. Gate b is only required for the measurement orcalibrat...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-11 Operation: The MULTECHO setting of the function MEASURE (lower operating level) is a prerequisite for operation. • Simultaneously press N and O in a-WIDTH or a-THRESH in order to switch to the settings for Gate b. a-THRESH Determination of threshold W...

5-16 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Clearing all data You can clear all data sets (data logger and active in-strument settings). Operation: – Switch off the instrument. – Keep keys F , E and K simultaneously for approximately 10 seconds. All data sets are now cleared. Displaying stored ...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-17 5.3 USN 52R/USN 52L calibration Calibration of display range Before you operate the instrument, you must calibrateit. Depending on the material and the dimensions of thetest object, the sound velocity and the calibration rangehave to be set and the pr...

5-18 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Recommendation: As long as the echoes to be evaluated indicate a dis-tinct maximum amplitude, select the PEAK mode ofmeasurement. Basic adjustment: Before calibrating the instrument, you must carry outthe following basic adjustment: Group Function Set...

5-20 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Calibration with angle-beam probes Known sound velocity In this case, it is sufficient when there is an echo froma known reflector with a known distance, e.g. the arc ofthe calibration block V1, V2. – Enter known sound velocity MTL VEL – Set Gate a to...

5-22 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Higher sound velocity Due to the V-path error, a higher sound velocity thanthe test material is required when calibrating, especiallywith smaller thicknesses. This is typical of dual (T/R)probes and acts as compensation of the V-path error. Owing to t...

5-24 Issue 05, 02/00 Krautkramer USN 52R/USN 52L MEASURE: MULTECHO – for measurement between the first echoes in the gate sections. Above all, thissetting is suitable for thickness measurement in themultiecho sequences. TOF: According to the application. Calibrating the sensitivity – B B is of great...

5-26 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Function group TCG With these functions you can operate all DAC/TCGmodes. Use C to go to the function group TCG : DAC/TCG mode With this function you can determine the DAC/TCGmode: OFF: No DAC/TCG is active. DAC: The already stored Distance-Amplitude ...

5-30 Issue 05, 02/00 Krautkramer USN 52R/USN 52L H Note: If the DAC/TCG is active, the symbol T is additionally displayed in the status line: Operation Recording a Distance-Amplitude Curve 5-30 Issue 05, 02/00 Krautkramer USN 52R/USN 52L H Note: If the DAC/TCG is active, the symbol T is additionally...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-33 TCG mode A Attention: An echo amplitude evaluation as measurement of thedifference to the reference echo is only possible if thereference height (height of the first reference echo)stored during the reference echo recording still applies.If another ec...

5-34 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 5.7 Measuring thickness USN 52R/USN 52L enable you to measure thicknessand distance in a simple way. The measured value isdirectly displayed. One of the following two methods ofmeasurement is used, depending on the application: • Measurement to the fi...

5-36 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Operation: – Change to the second operating level and select the function group for the Data Logger. – Set the required number of FILES in FILE NUMBER: SET #01 = 1 FILE, SET #02 = 2 FILES, etc. – Simultaneously press M when the required number is disp...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-41 Center Table Left function group A-SCAN Hollow or solid echo signal display LANGUAGE Display language DATA SET DIREC Directory of all data sets DATA SET NAME Entry of data set names Center function group BAUD RATE All functions are for adjustment of t...

5-42 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Right Table Left function group AUTO CAL Display graticule on/off GATE LOGIC Amplitude reading MEASURE Storage mode TOF Display brightness Center function group AMPL.EVAL. Switching between DAC/TGC and DGS MEMO MEMO function on/off MEAS.UNITS Selectio...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-43 GRATICULE Display graticule In this function you either switch the display graticuleon or off. In doing this, you are able to directly read offthe echo positions and heights. Operation: – Highlight the left function group in the left function table wi...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-45 VELOCITY #1 Preselecting fixed values for VELOCITY #2 sound velocity When calibrating the display range, you can select be-tween two fixed sound velocity values in the coarsemode. In this function you determine which values are avail-able for selectio...

5-46 Issue 05, 02/00 Krautkramer USN 52R/USN 52L GATE LOGIC Setting the gate logic In this function you can activate the gate and selectthe criteria for triggering the gate alarm. The followingsettings are available: • OFF: The gate is disabled. The gate bar is not displayed. • POSITIVE: The gate is...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-47 FILE NUMBER Selecting a file In this function you enter the number of FILES for theData Logger. You can also select specific measuredvalues here. The indicated functions are: • ALL CLEAR: No files have been configured • FILE NUMBER # 1-99: Enter numbe...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-51 DATA SET NAME Entry of a data set name This function is used for entering the data set name. Operation: – Highlight the left function group in the center function table using JC . – Select the required data set number with M . – Simultaneously press N...

5-52 Issue 05, 02/00 Krautkramer USN 52R/USN 52L You can overwrite characters that have already beenentered simply by marking the corresponding positionand selecting another character. DATA SET DIREC Data set directory In this function you obtain a quick overlook over allstored data sets with their ...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-53 level and the function RECALL you are able to load this data set as usual. The directory function can be exitedat any time by pressing X or F . MEMO Storing additional information You can store additional information on every data set,either as freely...

5-54 Issue 05, 02/00 Krautkramer USN 52R/USN 52L If USN 52R/USN 52L are set to the entry of freely for-mulated texts, you will see the following display: Entering texts In the two lower lines you will see letters, numbers andcharacters that you can use for the texts. To enter therequired text, start...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-55 The additional information is now stored together withthe data set number. If the MEMO function was used for the selected data set, you will see the first 46 char-acters of the entered additional information instead ofthe menu bar in the PREVIEW mode ...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-63 H Note: The measurement results are displayed in the measure-ment line. The corresponding symbol will appear in thestatus line: TOF Measurement mode for time of flight In this function you can select the mode of measure-ment for the time of flight/dis...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 6-1 Documentation 6 Krautkramer USN 52R/USN 52L Issue 05, 02/00 6-1 Documentation 6

Krautkramer USN 52R/USN 52L Issue 05, 02/00 7-1 Servicing and maintenance 7 Krautkramer USN 52R/USN 52L Issue 05, 02/00 7-1 Servicing and maintenance 7

7-2 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 7.1 Cleaning the USN 52R/USN 52L The instrument can be easily cleaned because, due tothe membrane keypad, there are no protruding parts onwhich dirt could collect. We advise you to only use a damp cloth to clean theinstrument and the necessary accessor...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 8-1 Interfaces, Peripherals 8 Krautkramer USN 52R/USN 52L Issue 05, 02/00 8-1 Interfaces, Peripherals 8

8-2 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 8.1 Interfaces Serial interface RS 232 The 7 pin connector at the back of the instrument is thebidirectional interface RS 232. It enables data transferto an external device, e.g. printer, PC or the DR1 DataRecorder from Krautkrämer. The instrument can ...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 8-3 Layout of 7 pin Lemo socket (RS 232) Layout of 7 pin Lemo socket RS 232 n i P n o i t p i r c s e D n o i t c e r i D l e v e L 1 d n u o r g 2 V 5 + 3 ) t i m s n a r T ( D x T t u p t u o L T T 4 ) d n e s o t r a e l C ( S T C t u p n i L T T 5 ) e ...

8-4 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Layout of 4 pin Lemo socket (charger socket, switching output) Layout of 4 pin Lemo socket n i P n o i t p i r c s e D n o i t c e r i D l e v e L 1 d n u o r g 2 e g r a h c t u p n i 3 n o i t c e n n o c s n i a m t u p n i C D V 0 1 . . . 9 4 m r a...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 8-5 8.2 Connection of a peripheral Peripherals are connected to the instrument via the RS232 interface. The corresponding connection cable isgiven in Chapter 2. To have correctly operating data communication be-tween the instrument and the peripheral, the ...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 8-7 Operation: – Set COPY MODE to REPORT . – If you wish to print the contents of the active measurement set from the A-Scan, return to the A-Scan display. – Activate printing with A . Empty measurement locations and files are not printed.The printed files...

8-10 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Printing display contents and instrumentsettings Operation: – Set COPY MODE to DISP + PDUMP . – If necessary, optimize the A-Scan. or – Set COPY MODE to PARAMETER DUMP . – With A activate printing. Transfer formats On the following page you will find ...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 8-19 Memo function Interfaces, Peripherals Entering MEMO text: <ESC> MT ## text <RETURN>, in which connection ## must be the number of a de- fined field. text stands for the required text. The length of the text must not exceed the field length...

8-20 Issue 05, 02/00 Krautkramer USN 52R/USN 52L n o i t c n u F O M E L n o i t c e n n o c R 2 5 N S U g o l a n a r o l o c e l b a C N A N U e l b a c e d u t il p m A 1 n w o r b d n u o r G 2 w o ll e y h t a p d n u o S 3 d e r d n u o r G 4 e g n a r o m r a l A 5 n e e r g d n u o r G 6 e u...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 8-21 Analog voltage for the echo amplitude (echoin the monitor gate) a) Rectified echoes 0 volt: no echo in the gate;echo amplitude = 0% screen HT 2.5 volts: echo amplitude = 128% screen HT b) RF mode -1.25 volts: echo amplitude = -64% screen HT +1.25 volt...

8-22 Issue 05, 02/00 Krautkramer USN 52R/USN 52L TTL switching output The switching output serves for external control pur-poses if there is a gate alarm. According to the follow-ing table, the following voltages are available at theconnections 5 (green) and 6 (ground, blue): E V I T I S O P : C I G...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 9-1 Specifications 9 Krautkramer USN 52R/USN 52L Issue 05, 02/00 9-1 Specifications 9

Krautkramer USN 52R/USN 52L Issue 05, 02/00 9-3 Display rectification Half-wave positive/negative, full-wave and RF Frequency (-3dB ranges) 0.4 MHz to 10 MHz2 MHz to 8 MHz0.3 MHz to 4 MHz3 MHz to 10 MHz Unit of measure mm or inch Display USN 52R: EL display, 146 mm x 67 mm, 552 x 256 pixels USN 52L:...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 9-5 DGS evaluation (option) 13 fixed-programmed probes, one probe user-definable; sound attenuation correctionfor reference block and test object, transfer correction and quadrant echo correction(for angle probes), reference reflectors: backwall, side dril...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 10-1 Appendix 10 Krautkramer USN 52R/USN 52L Issue 05, 02/00 10-1 Appendix 10

10-2 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 10.1 Function directory In the first column of the following table, all functionnames are listed (function group or table in brackets).The second column contains a brief description of thecorresponding function. The adjustment range and the function p...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 10-7 10.2 EC Certificate of Conformity USN 52R/USN 52L conform to the following EUdirectives: • 89/336/EEC (Electromagnetic compatibility) • 73/23/EEC, amended by the directive 93/68/EEC (Low-voltage directive) The conformity with the requirements of the E...

10-8 Issue 05, 02/00 Krautkramer USN 52R/USN 52L 10.3 Service addresses USN 52R/USN 52L are made with high-qualitycomponents according to the latest productionmethods. Strict intermediate inspections and a qualityassurance system, certified according to DIN ISO9001, guarantee optimum quality of conf...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 10-9 UK Buehler Krautkramer Ltd.Milburn Hill RoadUniversity of WarwickScience ParkGB - Coventry CV4 7HS Phone: +44 - 24 - 7669 - 00 69 Telefax: +44 - 24 - 7669 - 30 32 Japan Krautkrämer Japan Co., Ltd.Shin Tsaiso Building No. 310-12, Dogenzaka 2 - ChomeShi...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 11-1 Changes 11 Krautkramer USN 52R/USN 52L Issue 05, 02/00 11-1 Changes 11

11-2 Issue 05, 02/00 Krautkramer USN 52R/USN 52L This chapter contains descriptions of any recentchanges if applicable. Otherwise this chapter will remain empty. Changes 11-2 Issue 05, 02/00 Krautkramer USN 52R/USN 52L This chapter contains descriptions of any recentchanges if applicable. Otherwise ...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 12-3 Index D DAC echo evaluation 5-31recording a DAC curve 5-28 DAC/TCG 5-25DAMPING 5-7Data communication, setting 5-58Data Logger clearing files 5-37determining the number of files 5-35enabling 5-48printing report 8-6report format 8-7selecting a file 5-36...

Krautkramer USN 52R/USN 52L Issue 05, 02/00 12-5 Index LENGTH 5-57Limits of testing 1-5LOCATION 5-47Lock key 4-12Lock on/off key 4-12Locking set values 5-64 M Magnifying key 4-12Material of test object 1-5MEASURE 5-62Measurement line 4-6location 5-47mode for time of flight 5-63setting the method 5-6...

12-6 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Index Parity test 6-2Power supply 3-2Printer preparing 6-2types 2-5 PRINTER SELECT 5-58, 6-3Printing Data Logger report 8-6display contents 6-2instrument settings 6-2 Probe connection 3-5delay 5-13 PULS (function group) 5-2, 5-8Pulse repetition rate 9...

Option DGS Operating Manual Option DGS Operating Manual

DGS-2 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS This issue 02, 05/99 applies to the followingsoftware version: R5 TCG/DGSR6 TCG/DGS L4 TCG/DGSL5 TCG/DGS All rights reserved for technical changes! DGS-2 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS This issue 02, 05/99 applies t...

Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-3 Introduction ...................................... DGS-5 1.1 How to measure with the DGS ........... DGS-6 1.2 Overview of the method of proceeding ........................ DGS-8 Overview of the DGS menu .............. DGS-9 2.1 DGS mode ...

DGS-6 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS 1.1 How to measure with the DGS The DGS option (Distance - Gain - Size) enables you tocompare the reflecting power of a natural flaw in thetest object with the reflecting power of a theoretical flaw(disk-shaped reflector) at the same depth...

Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-7 The advantage of this method lies in the fact that youcan carry out reproducible evaluations of smalldiscontinuities. The reproducibility is especially impor-tant if you want to carry out e.g. an acceptance test. Besides the influencing fa...

Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-9 Overview of the DGS menu 2 Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-9 Overview of the DGS menu 2

DGS-10 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS 2.1 DGS mode Switch from TCG to DGS mode The DGS function is activated in the second operationlevel. – Press X to switch to the second operation level. – With U go to the “right“ function table. In the menu line now the menu DGS is displa...

Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-11 Function group DGS mode In the first operation level you can carry out a DGSmeasurement. This includes – adjustment of the reference gain and incremental gain, – adjustment of the recording limit, – switching-on of the DGS mode and the DG...

DGS-12 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS Menu functions n o i t c n u F n o i t p i r c s e D s n o i t p O / s e g n a R s y e K N I A G e h t , n o d e h c t i w s e d o m S G D e h t h t i W n i a g e c n e r e f e r s e t a c i d n i n o i t c n u f N I A G . n i a g l a t n...

Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-13 Function table DGS mode In the second operation level you can make the defaultsettings for a DGS measurement. – Switch to the second operation level: X – Tag the function table DGS: T or V DGS mode Overview of the DGS menu Krautkramer USN...

Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-17 Operating the DGS 3 Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-17 Operating the DGS 3

DGS-18 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS For general information on operation, please refer to theUSN 52 R Operating Manual. A Attention: You cannot estimate any flaw sizes with the DGS op-tion of the USN 52R/USN 52L. You can only comparethe reflecting power of a natural flaw wi...

DGS-20 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS H Note: Before entering the probe parameters, please read theprobe data sheet. – Enter the material velocity in the probe delay line (function DEL-VEL ). – Tag the mid column of the DGS function group: J or C – Enter the element diameter....

Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-21 For the reference echo you need a test block with aknown reflector. This reflector can be one of the follow-ing types: • backwall • disk-shaped reflector • side-drilled hole. With known diameter of the side- drilled hole, the diameter of ...

Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-25 The display shows a DGS curve: If you vary the reference gain, the curve moves verti-cally up or down, depending on the direction in whichyou are varying the gain. This is used for dynamic ex-tension beyond the visible section of the curv...

Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-27 3.5 Storing data With the function STORE (function group MEM) you store your acitve instrument setting and the active A-Scan including the reference echo. A Attention: When recalling stored data sets make certain that forfurther operation...

Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-29 Codes for remote control 4 Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-29 Codes for remote control 4