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Epson USN 52R Operating Manual

Lightweight, compact ultrasonic flaw detectors.
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USN 52R / USN 52L
Technical Reference and Operating Manual
Ident No. 28 642

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  • Page 1

    USN 52R / USN 52L Technical Reference and Operating Manual Ident No. 28 642...

  • Page 2: Table Of Contents

    2.2 Required accessories ... 2-4 2.3 Recommended accessories ... 2-4 2.4 Recommended outside products ... 2-5 3. Setting into operation ... 3-1 3.1 Positioning the USN 52R/USN 52L ... 3-2 3.2 Power supply ... 3-2 Battery operation ... 3-3 Inserting the batteries ... 3-3 Using the battery charger ...

  • Page 3

    Setting the measurement units ... 4-13 5. Operation ... 5-1 5.1 Function overview (first operating level) ... 5-2 5.2 Adjustment of the USN 52R/USN 52L ... 5-3 GAIN Gain adjustment ... 5-3 Selection of basic data ... 5-4 Setting the receiver ... 5-6 Setting the pulser ...

  • Page 4

    Clearing FILES ... 5-37 Storing measured values ... 5-37 Viewing stored readings ...5-38 Clearing the measured values ... 5-38 5.9 Configuring the USN 52R/USN 52L ... 5-39 5.10Data set names ...5-50 5.11Setting the RS232 interface ... 5-57 5.12Setting the flaw location calculation ...5-59 Displaying the measured values ...

  • Page 5

    6.2 Documentation with the PC program UltraDOC ... 6-5 7. Servicing and maintenance ... 7-1 7.1 Cleaning the USN 52R/USN 52L ... 7-2 7.2 Maintenance of NiCd cells ... 7-2 Charging NiCd cells ... 7-2 Handling NiCd cells ... 7-3 Handling AlMn batteries ...

  • Page 6

    9. Specifications ... 9-1 10.Appendix ... 10-1 10.1 Function directory ...10-2 10.2 EC Certificate of Conformity ...10-7 10.3 Service addresses ... 10-8 11.Changes ... 11-1 12.Index ... 12-1 Krautkramer USN 52R/USN 52L Issue 05, 02/00 Index...

  • Page 7

    Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 8: Introduction

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

  • Page 9: Safety Information

    Introduction 1.1 Safety information USN 52R and USN 52L have been designed and tested according to DIN EN 61 010 Part 1, March 1994, Safety requirements for electrical measuring, control and lab equipment, and was technically in perfectly safe and faultless condition when leaving the manufacturing works.

  • Page 10: Software

    Preconditions for testing with ultrasonic flaw detectors This Operating Manual contains all the necessary infor- mation on how to operate the USN 52R/USN 52L. There are, however, a number of factors which affect the test results obtained. In the following, please find a detailed...

  • Page 11: Operator Training

    Krautkrämer GmbH & Co regularly hold specialized training courses for qualified persons in the field of ul- trasonic testing. Scheduled dates of such courses will be given on re- quest. Issue 05, 02/00 Important notes Krautkramer USN 52R/USN 52L...

  • Page 12: Limits Of Testing

    Accurate mea- surement results require a constant sound velocity within the material. In test objects of steel, even with Krautkramer USN 52R/USN 52L varying alloying constituents, this condition is usually fulfilled: the variation of the sound velocity within the material is so slight that it is only of importance for high-precision measurements.

  • Page 13: Effect Of Temperature Variations

    Care should therefore be taken to se- lect a probe which will give a sufficiently narrow beam at the position of the flaw. Issue 05, 02/00 Important notes Krautkramer USN 52R/USN 52L...

  • Page 14: Echo Display Comparison Method

    Krautkramer USN 52R/USN 52L Ultrasound is subject to attenuation as it passes through any material. This attenuation is very small in, for instance, fine grained steel, and also in many small components made of other materials.

  • Page 15: Usn 52r/usn 52l

    Introduction 1.3 USN 52R/USN 52L USN 52R/USN 52L are lightweight, compact ultrasonic flaw detectors which is especially well suited for • locating and evaluating material flaws, • measuring wall thicknesses. • documenting all test results and readings. USN 52R: • high-resolution EL display, 146 mm x 67 mm (5.75“...

  • Page 16

    • RS232 interface for data transfer, A-scan displays and reports, or for remote control of the USN 52 R, • storage of 140 (USN 52R) / 100 (USN 52L) control data sets enabling quick calibration and reproducibil- ity of the test, •...

  • Page 17: Remarks On This Manual

    H Note: This manual applies to the two USN 52 versions USN 52R and USN 52L. The examples shown refer to the USN 52R; however, since function groups and func- tions of the two instruments are basically the same, the examples also apply to the USN 52L.

  • Page 18: Layout Of This Manual

    With U mark the second function group in the right- hand table. With NO set the function PARITY to ON. Krautkramer USN 52R/USN 52L Keys – JC / NO / U mean: Press the right or left key.

  • Page 19

    1-12 Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 20: Standard Package And Accessories

    Standard package and accessories Krautkramer USN 52R/USN 52L Issue 05, 02/00...

  • Page 21

    This chapter gives information about all parts and options supplied for the USN 52R/USN 52L. Among others, it describes: • Accessories in the Standard Package • Accessories required for operation of the instrument • Recommended accessories • Outside products configured for operation with the...

  • Page 22: Standard Package

    2.1 Standard package Product type USN 52R USN 52R DGS USN 52L USN 52L DGS Krautkramer USN 52R/USN 52L Description Portable ultrasonic flaw detector with high-resolution EL display, with probe connector LEMO 00 with probe connector BNC Portable ultrasonic flaw detector...

  • Page 23: Required Accessories

    PC. LEMO 00 7-pin to DB 25S. Incl. adaptor DB 25P to DB 9S for AT Issue 05, 02/00 Standard package Order no. 34 941 25 812 34 094 34 093 33 763 18 840 05 301 13 647 Krautkramer USN 52R/USN 52L...

  • Page 24: Recommended Outside Products

    Product type GCH1 GCH3 UNAN UN 100 W 2.4 Recommended outside products Krautkramer USN 52R/USN 52L Standard package and accessories Description Adaptor DB 25P (gender changer) to connect the USN 52/PC cable to a printer with serial interface (EPSON) Adapter (gender changer) to connect the...

  • Page 25

    Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 26: Setting Into Operation

    Setting into operation Krautkramer USN 52R/USN 52L Issue 05, 02/00...

  • Page 27: Positioning The Usn 52r/usn 52l

    3.1 Positioning the USN 52R/ USN 52L Refer to Chapter 9 concerning the permitted ambient conditions, such as temperature and humidity. Position the instrument on a smooth surface so that the display can be easily read.

  • Page 28: Battery Operation

    To insert new batteries, you must first loosen the four screws at the bottom of the instrument (see following figure) and then remove the battery compartment lid. Krautkramer USN 52R/USN 52L Each battery in the battery pack is secured with a separate holder.

  • Page 29: Using The Battery Charger

    Setting into operation Using the battery charger The power supply/charger unit for USN 52R/USN 52L automatically adjusts itself fo the existing supply volt- age in the range from 80 to 250 V. The connection for the combined power supply/charger unit is at the rear of the instrument (see following figure).

  • Page 30: Probe Connection

    – Using N or O, set the damping resistor in function DAMPING There are 4 settings available: 50, 75, 150 and 1000 ohms. Krautkramer USN 52R/USN 52L 3.4 Starting the USN 52 R Switching on This is the normal way of switching on the USN 52 R.

  • Page 31: Reset

    Refer to Chapter 4 for changing the default settings according to your own requirements. 3.5 Screen saver USN 52R/USN 52L are equipped with a screen saver in order to extend the life of the display screen and the operating time of the batteries. If your instrument is on,...

  • Page 32: Basics Of Operation

    Basics of operation Krautkramer USN 52R/USN 52L Issue 05, 02/00...

  • Page 33: Usn 52r And Usn 52l

    The only difference is the type and size of the display screen or its setting. USN 52R USN 52R: The screen brightness of the EL display is set in the function INTENSITY (Please refer to page 5-45). USN 52L: The LCD screen is set using special keys (please refer to page 4-3).

  • Page 34

    USN 52R and USN 52L The USN 52L is provided with the following special keys for the LCD screen: switches the display backlight directly on and off. varies the brightness / the contrast of the LCD screen. Krautkramer USN 52R/USN 52L...

  • Page 35: Display

    - the value highlighted in the measurement line is overlaid on the display. • in the enlarged mode display mode with overlaid measured value. – Press L for switching over. Issue 05, 02/00 Display Krautkramer USN 52R/USN 52L...

  • Page 36: Functions On The Display

    A-scan. • In the second operating level there are 3 groups compiled into one function table (refer to fold-out page). – Press X for switching between the two operating levels. Krautkramer USN 52R/USN 52L Issue 05, 02/00...

  • Page 37: Indications Beneath The A-scan

    The contents of this line depend on the settings of the functions MEASURE, TOF, AMPLITUDE, FILE MODE, ANGLE and X-VALUE. Status line Symbols appear here which indicate certain settings, e.g. battery charge status (please refer to fold-out page). Issue 05, 02/00 Display Krautkramer USN 52R/USN 52L...

  • Page 38

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

  • Page 39: Keypad

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

  • Page 40: Special Keys Of The Usn 52l For Setting The Display

    Basics of operation Keypad Special keys of the USN 52L for setting the display For switching the backlight on and off, and for setting the contrast/brightness. Krautkramer USN 52R/USN 52L Issue 05, 02/00...

  • Page 41: Operational Concept

    Example: Adjustment of sound velocity – Select the function group BASIC. – In MTL VEL press N or O in order to change the sound velocity. Issue 05, 02/00 Operational concept Krautkramer USN 52R/USN 52L...

  • Page 42: Selection Of Measured Value For Enlarged Display

    DELAY in the measurement line. For this, either the function GATE LOGIC or MEASURE must be set to OFF (both functions: lower operating level). Krautkramer USN 52R/USN 52L 4.4 Function keys With the function keys you select functions and change...

  • Page 43: Keys For Special Functions

    They are used for setting the LCD screen. Function Backlight - Switches the display backlight on and off. Contrast - varies the brightness / contrast of the LCD screen. Issue 05, 02/00 Keys for special functions Krautkramer USN 52R/USN 52L...

  • Page 44: Important Basic Settings

    – Change to the second level with X. – Select the left-hand function table with T V. – Highlight the left function group with C. Krautkramer USN 52R/USN 52L – Set the required language in the LANGUAGE function with N or O.

  • Page 45

    4-14 Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 46: Operation

    Operation Krautkramer USN 52R/USN 52L Issue 05, 02/00...

  • Page 47: Function Overview (first Operating Level)

    5.1 Function overview (first operating level) In the first operating level you will find all functions required for basic adjustment of the USN 52R/USN 52L. They are compiled into function groups allocated to certain operation tasks. In order to change between the function groups, press J or C.

  • Page 48: Adjustment Of The Usn 52r/usn 52l

    Adjustment of the USN 52 R 5.2 Adjustment of the USN 52R/ USN 52L GAIN Gain adjustment With this function the echoes of the reflectors to be detected are amplified so that they appear on the dis- play at the required height.

  • Page 49: Selection Of Basic Data

    – Press N or O in order to change between the steps or to continuously select the required value. – Coarse/Fine change-over: Simultaneously press N and O in RANGE. Issue 05, 02/00 Adjustment of the USN 52R/USN 52L Krautkramer USN 52R/USN 52L...

  • Page 50

    Adjustment of the USN 52R/USN 52L H Note: The setting is limited by the set sound velocity. The measurement units for all settings – mm or inches – can be selected in the second operating level. MTL VEL Setting the sound velocity In this function you enter the test object’s sound veloc-...

  • Page 51: Setting The Receiver

    • 3 - 10 MHz = high frequency range • 0.3 - 4 MHz = low frequency range Operation: – Select the required setting in FREQ. using M. Issue 05, 02/00 Adjustment of the USN 52R/USN 52L Krautkramer USN 52R/USN 52L...

  • Page 52

    Adjustment of the USN 52R/USN 52L DAMPING Electrical damping of the probe You can use the function DAMPING to connect various resistors in parallel to the probe in order to achieve an optimum matching of the probe’s electrical impedance to the instrument.

  • Page 53: Setting The Pulser

    Operation: – Select the required setting in PULSER using M. H Note: The corresponding symbol will be displayed in the sta- tus line: Single Dual Issue 05, 02/00 Adjustment of the USN 52R/USN 52L Krautkramer USN 52R/USN 52L...

  • Page 54

    Adjustment of the USN 52R/USN 52L REJECT Suppression of spurious echoes With the REJECT function you are able to suppress unwanted signals, e.g. material noise. The setting, given in percent, indicates the height that echoes have to reach in order to be displayed in the first place.

  • Page 55: Gate Adjustment

    • They select the echoes for the digital time-of-flight or amplitude measurement. 5-10 USN 52R/USN 52L make the two gates a and b avail- able. Gate b is only required for the measurement or calibration of multi-echo sequences and enables the measurement of the distance between two echoes.

  • Page 56

    Adjustment of the USN 52R/USN 52L 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.

  • Page 57: Calibration Functions

    Calibration functions USN 52R/USN 52L are accurately calibrated using the functions of the function group S-CAL. – With I go the function group S-CAL. H Note: In order to obtain the correct setting, you must have selected the display range, according to the test task, in the function group BASIC beforehand.

  • Page 58

    (mtl vel). In this way you are able to recognize which mode of adjustment you have selected. Krautkramer USN 52R/USN 52L Attention: Always make sure that the sound velocity in MTL VEL is set correctly! The instrument calculates all interval and distance indications using the values which have been set here.

  • Page 59: Storing Data

    – With M switch to ON so that the settings can be loaded. When the sequence is finished, the display automatically changes to OFF. – Acknowledge system safety prompt with F. Issue 05, 02/00 Adjustment of the USN 52R/USN 52L Krautkramer USN 52R/USN 52L...

  • Page 60: Clearing The Instrument Setting

    Refer to Chapter 5.10 Entering and displaying data set names . Operation: – Select a number between 1 and 140 (USN 52R) / 1 and 100 (USN 52L) with M. STORE Storing the instrument settings With this function you store the active instrument set- tings and the active A-scan under the number indicated in SET#.

  • Page 61: Clearing All Data

    – If you do not wish to load a data set: exit the preview function by pressing N and O simultaneously in SET#. Issue 05, 02/00 Adjustment of the USN 52R/USN 52L Krautkramer USN 52R/USN 52L...

  • Page 62: Usn 52r/usn 52l Calibration

    USN 52R/USN 52L calibration 5.3 USN 52R/USN 52L calibration Calibration of display range Before you operate the instrument, you must calibrate it. Depending on the material and the dimensions of the test object, the sound velocity and the calibration range have to be set and the probe delay taken into consider- ation.

  • Page 63: Calibration With A Straight-beam Probe

    (sound path between the two backwall echoes) corresponds to the actual thickness of the test object. If necessary, you have to readjust the gate parameters. – Set MEASURE to 0 TO 1st Issue 05, 02/00 USN 52R/USN 52L calibration Krautkramer USN 52R/USN 52L...

  • Page 64

    USN 52R/USN 52L calibration – Increase ZERO until the correct sound path value for the echo is displayed. Example: – Carry out calibration on a 25 mm thick test piece for a calibration range of 100 mm. – Set RANGE to 100 mm –...

  • Page 65: Calibration With Angle-beam Probes

    R, 3R, 5R, etc. You apply these echoes for calibration the same as the backwall echoes described above which come from a plane-parallel calibration piece with vertical beaming. Issue 05, 02/00 USN 52R/USN 52L calibration Krautkramer USN 52R/USN 52L...

  • Page 66: Calibration With A Dual (t/r) Probe

    – Set ZERO so that “S=50" is displayed in the measurement line The calibration has now been completed. Krautkramer USN 52R/USN 52L Calibration with a dual (T/R) probe Above all, dual (T/R) probes are mainly used for thick- ness measurement. When applying these probes ob-...

  • Page 67: Automatic Calibration

    The function group S-CAL changes in preparation for the automatic calibration and now contains the CAL function (calibration) as well as the function S-REF (sound path for the reference echo). Issue 05, 02/00 USN 52R/USN 52L calibration Krautkramer USN 52R/USN 52L...

  • Page 68: Preparing The Instrument For Digital Measurement

    Preparing the instrument for digital measurement USN 52R/USN 52L must be calibrated to the material to be tested in order to give the correct measurement readings. H Note:...

  • Page 69: Calibrating The Sensitivity

    – Position the gate onto the required echo. The dB difference is now displayed in the measurement line. It indicates the dB amount by which the flaw echo falls below or exceeds the reference echo. Issue 05, 02/00 USN 52R/USN 52L calibration Krautkramer USN 52R/USN 52L...

  • Page 70: Dac/tcg

    The DAC/TCG in the USN 52R/USN 52L can correct these influences. Krautkramer USN 52R/USN 52L In this regard, the gain is varied as a function of the...

  • Page 71: Function Group Tcg

    • In the TCG setting, the lowest function DAC ECHO changes to CURVE. You can additionally have the progress of the gain increase displayed by a curve at this point if you wish: CURVE = ON. Issue 05, 02/00 DAC/TCG Krautkramer USN 52R/USN 52L...

  • Page 72

    RANGE, MTL VEL, FREQ., RECTIF. and DAMPING due to the fact that a variation of these functions is no longer possible with an active DAC or TCG. Krautkramer USN 52R/USN 52L Issue 05, 02/00 5-27...

  • Page 73: Recording A Distance-amplitude Curve

    The data of the second echo are stored - DAC ECHO = 2. You will now already recognize that there is a curve between the amplitude of the first echo and the gain- corrected amplitude of the second echo. Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 74

    DAC curve. The marking DAC/TCG* also appears when the function is switched off. Krautkramer USN 52R/USN 52L – If you require an evaluation in the TCG mode, switch the DAC/TCG function over to TCG.

  • Page 75

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

  • Page 76: Echo Evaluation With Dac/tcg

    REJECT. • TOF is set to PEAK. • AMPLITUDE is set to dB THRESHOLD. Krautkramer USN 52R/USN 52L • Choose the echo amplitude (as dB difference to the curve) using the T V -keys for an enlarged representation in the A-scan.

  • Page 77: Dac Mode

    The enlarged reading in the A-scan indicates the amount of dB by which the flaw echo exceeds the curve, i.e. the amount by which the echo indication exceeds the reference echo. 5-32 Issue 05, 02/00 Echo evaluation with DAC/TCG Krautkramer USN 52R/USN 52L...

  • Page 78: Tcg Mode

    – Peak the echo from an assumed flaw. If necessary, increase the gain until the echo exceeds the gate threshold. Krautkramer USN 52R/USN 52L – You can read the sound path in the measurement line and, in addition with angle-beam probes, the (reduced) projection distance and the flaw depth.

  • Page 79: Measuring Thickness

    5.7 Measuring thickness USN 52R/USN 52L enable you to measure thickness and distance in a simple way. The measured value is directly displayed. One of the following two methods of measurement is used, depending on the application: • Measurement to the first echo – e.g. corrosion measurement with a dual (T/R) probe •...

  • Page 80: Storing Measured Values - Data Logger

    “FILE”. To file measured values in the Data Logger you must • determine the required number of FILES • select a FILE Krautkramer USN 52R/USN 52L Determining the number of FILES You determine the total number of FILES (max. 99) – the instrument automatically determines the number of...

  • Page 81: Selecting A File

    The active status of each FILE number is displayed: EMPTY: File is empty. ACTIVE: File contains at least one reading. FULL: All measurement locations in this FILE are allocated. ALL CLEAR: You must first enter the number of FILES. Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 82: Clearing Files

    Storing measured values - Data Logger Clearing FILES All cleared data are irrevocably lost. Therefore, transfer the data to a PC or printer beforehand if necessary. Operation: – Change to the second operating level and select the function group for the Data Logger.

  • Page 83: Viewing Stored Readings

    – When in VALUE, simultaneously press M and keep the keys pressed for about 3 seconds. When VALUE: EMPTY appears, the measured value is deleted. – Press Ain the A-scan mode to store a new value at this measurement location. Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 84: Configuring The Usn 52r/usn 52l

    Configuring the USN 52R/USN 52L 5.9 Configuring the USN 52R/ USN 52L In the second operating level you will find all functions which do not have a direct influence on the A-scan. They are compiled into two function tables. – Press X to change from the first to the second operating level and back again.

  • Page 85

    GRATICULE Display graticule on/off AMPLITUDE Amplitude reading FREEZE MODE Storage mode INTENSITY, Display brightness (only USN 52R) Center function group VELOCITY # 1 Sound velocity for coarse mode VELOCITY # 2 Sound velocity for coarse mode dB STEP Step range for D...

  • Page 86

    Configuring the USN 52R/USN 52L 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...

  • Page 87

    Display graticule on/off GATE LOGIC Amplitude reading MEASURE Storage mode Display brightness Center function group AMPL.EVAL. Switching between DAC/TGC and DGS MEMO MEMO function on/off MEAS.UNITS Selection of units 5-42 Issue 05, 02/00 Configuring the USN 52R/USN 52L Krautkramer USN 52R/USN 52L...

  • Page 88

    Configuring the USN 52R/USN 52L GRATICULE Display graticule In this function you either switch the display graticule on or off. In doing this, you are able to directly read off the echo positions and heights. Operation: – Highlight the left function group in the left function table with JC.

  • Page 89

    – Highlight the left function group in the left function table with I. – With M select the required setting. H Note: Please consider a higher power consumption with INTENSITY = HIGH which reduces the battery life. Issue 05, 02/00 Configuring the USN 52R/USN 52L Krautkramer USN 52R/USN 52L...

  • Page 90

    Configuring the USN 52R/USN 52L 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 coarse mode. In this function you determine which values are avail- able for selection.

  • Page 91

    Operation: – Highlight the center function group in the left function table with I. – With M select the required gate setting. Issue 05, 02/00 Configuring the USN 52R/USN 52L Krautkramer USN 52R/USN 52L...

  • Page 92

    Configuring the USN 52R/USN 52L FILE NUMBER Selecting a file In this function you enter the number of FILES for the Data Logger. You can also select specific measured values here. The indicated functions are: • ALL CLEAR: No files have been configured •...

  • Page 93

    GER is selected in COPY MODE (right function table). Operation: – Highlight the right function group in the left function table with I. – With M alternately enable and disable the Data Logger. Issue 05, 02/00 Configuring the USN 52R/USN 52L Krautkramer USN 52R/USN 52L...

  • Page 94

    Operation: – Highlight the left function group in the center function table with I. – Select the required language with M. Krautkramer USN 52R/USN 52L MEAS. UNITS Setting the measurement units In this function you enter the measurement units in which the instrument is to operate.

  • Page 95: Data Set Names

    – switch the MEMO function on, – define a header by means of remote control commands if necessary. H Note: You will find the remote control commands in chapter 8.7. Issue 05, 02/00 Data set names Krautkramer USN 52R/USN 52L...

  • Page 96

    You will see the following display: The cursor flashes at the entry position of the inverted field of the menu. Krautkramer USN 52R/USN 52L In the two lower lines you will see letters, numbers and characters which you can use for the data set name.

  • Page 97

    The directory function is exited; the selected data set is now entered into the left-hand function group in the function DATA SET NAME. Using the function group MEM in the first operating Issue 05, 02/00 Data set names Krautkramer USN 52R/USN 52L...

  • Page 98

    RECALL you are able to load this data set as usual. The directory function can be exited at any time by pressing X or F. Krautkramer USN 52R/USN 52L MEMO Storing additional information You can store additional information on every data set, either as freely formulated text (max.

  • Page 99

    If USN 52R/USN 52L are set to the entry of freely for- mulated texts, you will see the following display: If a data header was defined for the entry of additional information, you will see e.g. this display: The cursor flashes at the entry position.

  • Page 100

    PREVIEW mode (the first operating level). Krautkramer USN 52R/USN 52L Filling in a data header In the two lower lines you will see letters, numbers and characters that you can use for the texts.

  • Page 101

    The flashing cursor changes the string automatically. The highlighted character is immediately inserted at the entry position. – Finally, press the key X to store all entries. 5-56 Issue 05, 02/00 Data set names Krautkramer USN 52R/USN 52L...

  • Page 102: Setting The Rs232 Interface

    • 600 Baud • 1200 Baud • 2400 Baud • 4800 Baud • 9600 Baud Krautkramer USN 52R/USN 52L LENGTH Setting the length of a byte • 7 DATA BITS • 8 DATA BITS PARITY Parity check • DISABLED • EVEN •...

  • Page 103

    Printer type Additionally, you select in this function the printer for which the printouts are formatted: • EPSON FX (also for EPSON LX-300) • SEIKO DPU 411 (also for Seiko DPU 414) Operation: – Simultaneously press N and O in the function COPY MODE.

  • Page 104: Index

    “0 TO 1st“. – With U go to center function table. All the necessary functions are available in the right group. Krautkramer USN 52R/USN 52L projection distance reduced projection distance distance probe edge – beam index point effective sound path distance flaw location –...

  • Page 105

    The setting of the X-value is necessary when the instrument is to determine the reduced projection distance. Operation: – Set the X-value with M in the X-VALUE function. Issue 05, 02/00 Setting the flaw location calculation Krautkramer USN 52R/USN 52L...

  • Page 106: Displaying The Measured Values

    O-DIAM, or select infinite if you are testing plane-parallel test objects. H Note You can select infinite directly by simultaneously pressing N and O . Krautkramer USN 52R/USN 52L Displaying the measured values The determined values are displayed in the measure- ment line: Sound path...

  • Page 107: Automatic Calibration

    Operation: – Highlight the right function group in the left function table using I. – With M select the required setting in MEASURE. Issue 05, 02/00 Setting the measurement methods Krautkramer USN 52R/USN 52L...

  • Page 108

    < 110% screen height. You must have selected the same TOF setting for the calibration. Krautkramer USN 52R/USN 52L H Note: With the setting Flank, the time of flight is derived from the first echo and the amplitude is derived from the highest echo within the gate.

  • Page 109: Locking Set Values

    • Calibration standard N30 • Probe CLF 4 and cable MPKM 2 (for resolution test) • Batteries and/or Power Supply/Charger unit H Note: 1 vertical scale division (Div.) corresponds to 10% screen height (SH). Issue 05, 02/00 Function check Krautkramer USN 52R/USN 52L...

  • Page 110

    Function check Krautkramer USN 52R/USN 52L i t i y l l . v i . v i . v i . v i . v i Issue 05, 02/00 . y l . y l – 5-65...

  • Page 111

    : . v . e l t f i ≥ 0 a l l o i t Krautkramer USN 52R/USN 52L Function check t i n l a i a l l o i t . y t...

  • Page 112

    Function check n i t n i t Krautkramer USN 52R/USN 52L i t u t i n l a i . e l n i l u t i Issue 05, 02/00 . v i . . ) o i t...

  • Page 113

    5-68 h t i h t i h t i n i l a l f a l f l l a ≥ Issue 05, 02/00 f i d Krautkramer USN 52R/USN 52L Function check i t c...

  • Page 114

    : . F . F I : . F : . F Krautkramer USN 52R/USN 52L f l a f l a y l l s f f : . F f l a...

  • Page 115

    5-70 a l f e t l a l f e t l n i t n i t l i t Issue 05, 02/00 Function check o i t Krautkramer USN 52R/USN 52L...

  • Page 116

    Function check n i t Krautkramer USN 52R/USN 52L . e l n i l Issue 05, 02/00 n i l 5-71...

  • Page 117

    5-72 Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 118: Documentation

    Documentation Krautkramer USN 52R/USN 52L Issue 05, 02/00...

  • Page 119: Printing Instrument Settings And Display Contents

    6.1 Printing instrument settings and display contents Using a common EPSON printer or an Epson compatible printer, the USN 52R/USN 52L offers you the opportunity to create a printout of the complete current display including the echo indications. In addition to this, all settings of the active data set can be printed out for documention purposes.

  • Page 120

    COPY MODE. The function PRINTER SELECT appears. You can select the following printers: • EPSON FX (also for EPSON LX-300) • SEIKO DPU 411 (also for Seiko DPU 414) – Select the required printer with M. – Simultaneously press N and O again in order to exit the function PRINTER SELECT.

  • Page 121

    Documentation Printing instrument settings and display contents Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 122: Documentation With The Pc Program Ultradoc

    UltraDOC With the special application program UltraDOC from Krautkrämer you are able to remote control your USN 52R/USN 52L and record instrument settings in your test report in an ASCII format or display contents in PCX or IMG formats.

  • Page 123

    Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 124: Servicing And Maintenance

    Servicing and maintenance Krautkramer USN 52R/USN 52L Issue 05, 02/00...

  • Page 125: Cleaning The Usn 52r/usn 52l

    Servicing and maintenance 7.1 Cleaning the USN 52R/ USN 52L The instrument can be easily cleaned because, due to the membrane keypad, there are no protruding parts on which dirt could collect. We advise you to only use a damp cloth to clean the instrument and the necessary accessories.

  • Page 126: Handling Nicd Cells

    • Excess charging with a current which is too high can cause capacity losses of the NiCd cells. Krautkramer USN 52R/USN 52L Servicing and maintenance Handling AlMn batteries Remove the batteries from the instrument if it has not been in operation for a long time.

  • Page 127

    Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 128: Interfaces, Peripherals 8

    Interfaces, Peripherals Krautkramer USN 52R/USN 52L Issue 05, 02/00...

  • Page 129: Interfaces

    The 7 pin connector at the back of the instrument is the bidirectional interface RS 232. It enables data transfer to an external device, e.g. printer, PC or the DR1 Data Recorder from Krautkrämer. The instrument can also receive data transferred from a PC.

  • Page 130: Layout Of 7 Pin Lemo Socket (rs 232)

    Interfaces Layout of 7 pin Lemo socket (RS 232) ) t i Krautkramer USN 52R/USN 52L Issue 05, 02/00 Interfaces, Peripherals Layout of 7 pin Lemo socket RS 232...

  • Page 131: Layout Of 4 Pin Lemo Socket (charger Socket, Switching Output)

    Interfaces, Peripherals Layout of 4 pin Lemo socket (charger socket, switching output) o i t . . . e l l Issue 05, 02/00 Interfaces Layout of 4 pin Lemo socket Krautkramer USN 52R/USN 52L...

  • Page 132: Connection Of A Peripheral

    232 interface. The corresponding connection cable is given in Chapter 2. Serial port RS 232 Krautkramer USN 52R/USN 52L To have correctly operating data communication be- tween the instrument and the peripheral, the parameters belonging to the interface and the peripheral must be adjusted to each other.

  • Page 133: Transferring The Display Contents

    8.3 Transferring the display contents H Note: The output is formated on an Epson matrix printer with Intelligent Serial Interface as well as on a Seiko DPU. You can print the active display contents by pressing A. Connect the printer connection cable into the RS 232 socket of the instrument.

  • Page 134: Data Logger Report Format

    The report format of the Data Logger is always the same irrespective of whether the data is transferred to a printer or to a PC. The transfer sequence of data to a PC is described in the following section. On the next page you will see an example for a Data Logger report with a brief description of the information contained in the individual sections of the report.

  • Page 135

    3. MM (millimeters) IN (inches). Values are transmitted in the unit of measure to which the instrument is set at the time the report is transmitted.The instrument uses a parity flag to test the validity of each measurement as it is recalled for transmission. Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 136: Transferring Measurement Values

    Any measurement value that has been damaged in memory is thus detected and “ERROR“ is transmitted in its place. Damaged measurement values are not used in calculating statistics. Krautkramer USN 52R/USN 52L 8.5 Transferring measurement values Transferring measurements values in the Data...

  • Page 137: Printing Display Contents And Instrument Settings

    2 before and 2 behind the point • XX.XX MM: Units of measure METRIC 2 before and 2 behind the point • XXX.X MM: Units of measure METRIC 3 before and 1 behind the point Issue 05, 02/00 Transferring measurement values Krautkramer USN 52R/USN 52L...

  • Page 138

    Transferring measurement values blank space bar Number 0-9 Decimal point Unit INCH Unit MM Carriage Return Line Feed Krautkramer USN 52R/USN 52L Issue 05, 02/00 Interfaces, Peripherals 8-11...

  • Page 139: Usn 52r/usn 52l Remote Operation

    The command sequences can be entered via a PC keyboard or via a special user-program such as UltraDOC. With this, there are differences between: • Recall of the value or condition of a USN 52R/ USN 52L function with the command structure: <ESC><CODE><RETURN>...

  • Page 140

    USN 52R/USN 52L remote operation ° 0 ° 0 Krautkramer USN 52R/USN 52L Issue 05, 02/00 Interfaces, Peripherals 8-13...

  • Page 141

    Interfaces, Peripherals g i f s µ µ : 0 F 8-14 ) c i Issue 05, 02/00 USN 52R/USN 52L remote operation g i f Krautkramer USN 52R/USN 52L...

  • Page 142

    USN 52R/USN 562L remote operation a i l s t i e l i t l u l e i e i f e i f Krautkramer USN 52R/USN 52L Issue 05, 02/00 Interfaces, Peripherals e i f 8-15...

  • Page 143

    Interfaces, Peripherals s µ µ 8-16 Issue 05, 02/00 USN 52R/USN 52L remote operation : 0 N Krautkramer USN 52R/USN 52L...

  • Page 144: Configuring The Memo Function

    • Start by defining the number of fields with HN. • After that, define the length of every field and the corresponding labeling with HF. Krautkramer USN 52R/USN 52L • Having defined all fields (length and labeling), you can enter the texts for the predefined fields directly...

  • Page 145

    <ESC>HF 7 9\PR P-DIST<RETURN> <ESC>HF 8 8\DP DEPTH<RETURN> <ESC>HF 9 8 COMMENT<RETURN> After the last field has been defined, the reply is: The fields 5 to 8 are automatically filled in. Issue 05, 02/00 Memo function Krautkramer USN 52R/USN 52L...

  • Page 146

    ## 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. Shorter texts are automatically left-justified, longer texts are automatically shortened. Krautkramer USN 52R/USN 52L Issue 05, 02/00 8-19...

  • Page 147: Analog Outputs

    There is no plug on the user side. Use the connections according to your requirements as shown in the table opposite: 8-20 u t i d i l Issue 05, 02/00 Analog outputs o l l Krautkramer USN 52R/USN 52L...

  • Page 148: Analog Voltage For The Echo Amplitude (echo In The Monitor Gate)

    RF mode -1.25 volts: echo amplitude = -64% screen HT +1.25 volts: echo amplitude = +64% screen HT Krautkramer USN 52R/USN 52L Analog voltage for the sound path of an echo a) MEASURE = 0 TO 1st 0 volt: sound path = a-START;...

  • Page 149: Ttl Switching Output

    5 (green) and 6 (ground, blue): < > The maximum load capability of the switching output is 2.5 mA. 8-22 t l o s t l Issue 05, 02/00 s t l t l o Krautkramer USN 52R/USN 52L Analog outputs...

  • Page 150: Specifications

    Specifications Krautkramer USN 52R/USN 52L Issue 05, 02/00...

  • Page 151

    1179 mm to 5867 mm 452 Hz 5 mm to 295 mm 226 Hz 296 mm to 589 mm 113 Hz 590 mm to 1178 mm 56 Hz 1179 mm to 5867 mm Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 152

    Unit of measure mm or inch Display USN 52R: EL display, 146 mm x 67 mm, 552 x 256 pixels USN 52L: transflective LCD display, 114 mm x 75 mm, 480 x 320 pixels, switchable backlight, selectable contrast Both versions: A-scan in a filled (SOLID) or curve (HOLLOW) mode, enlarged...

  • Page 153

    99 files, measured values for the corresponding files are determined by the file configuration DAC/TCG Recording of up to 9 reference echoes, dynamic range 40 dB, maximum slope 6 dB/µs, representation as Curve (DAC) and Time-Corrected Gain (TCG) Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 154

    Operating temperature From 0 °C to + 55 °C Interface RS 232 C, bidirectional for data transfer to a serial printer (EPSON format) or to a PC, or remote control of all settings from the PC Analog output 5V TTL switching voltage with gate alarm 0V to 2.5V analog voltage proportional to the echo amplitude...

  • Page 155

    Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 156: Appendix

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

  • Page 157: Function Directory

    The second column contains a brief description of the corresponding function. The adjustment range and the function parameters can be found in the tables of Chapter 8.6 together with information concerning resolution and adjustment accuracy. 10-2 Issue 05, 02/00 Function directory Krautkramer USN 52R/USN 52L...

  • Page 158

    DAC ECHO (TCG) Number of reference echoes of the DAC curve; storage of one reference echo in the recording mode (REC) DAC/TCG (TCG) Setting of DAC/TCG function DAMPING (RCVR) Setting of damping resistor Krautkramer USN 52R/USN 52L Issue 05, 02/00 Appendix 10-3...

  • Page 159

    GATE LOGIC (left / right) Selection of the condition under which the gate alarm is activated GRATICULE (left) Enabling or disabling of graticule in the A-Scan INTENSITY (left) Only USN 52R: Sets display brightness 10-4 Issue 05, 02/00 Function directory Krautkramer USN 52R/USN 52L...

  • Page 160

    PULSER (PULS) Change of operating mode RANGE (BASIC) Sets range to be displayed RECALL (MEM) Loading of a data set selected with DATA SET RECTIF. (RCVR) Selection of signal display mode Krautkramer USN 52R/USN 52L Issue 05, 02/00 Appendix 10-5...

  • Page 161

    Setting of both fixed values for the material velocity X-VALUE (center) Distance of the probe’s front edge to the beam indes point for calculation of the flaw location ZERO (S-CAL) Adjustment of probe delay for distance measurement 10-6 Issue 05, 02/00 Function directory Krautkramer USN 52R/USN 52L...

  • Page 162: Ec Certificate Of Conformity

    EC Certificate of Conformity Appendix 10.2 EC Certificate of Conformity USN 52R/USN 52L conform to the following EU directives: • 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 EU...

  • Page 163: Service Addresses

    Appendix 10.3 Service addresses USN 52R/USN 52L are made with high-quality components according to the latest production methods. Strict intermediate inspections and a quality assurance system, certified according to DIN ISO 9001, guarantee optimum quality of conformance of the instrument.

  • Page 164

    Shibuya - ku Tokyo 150 / Japan Phone: +81 - 3 - 3461 - 3971 Telefax: +81 - 3 - 3770 - 4879 Krautkramer USN 52R/USN 52L Krautkramer - Branson 50 Industrial Park Road P.O. Box 350 Lewistown, PA 17044 Phone:...

  • Page 165

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

  • Page 166: Changes

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

  • Page 167

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

  • Page 168: Index

    Index Krautkramer USN 52R Issue 05, 02/00 12-1...

  • Page 169

    5-21 with angle-beam probes 5-20 with straight-beam probe 5-18 Calibration range, setting 5-4 Charger socket 8-4 Cleaning 7-2 Configuring 5-39 Connection of peripherals 8-5 Copy key 4-12 COPY MODE 5-58 Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 170

    5-15 storing 5-14 DATA SET DIREC 5-52 dB difference, recall 5-24 dB STEP 4-12, 5-45 dB STEP, setting 5-3 DELAY 5-5 Krautkramer USN 52R/USN 52L Delay, setting 5-5 Directory data sets 5-52 Display 4-4 Display brightness USN 52L 4-3...

  • Page 171

    Index Features of the USN 52R/USN 52L 1-8 FILE MODE 5-48 FILE NUMBER 5-37, 5-47 Flaw location calculation 5-59 FREEZE MODE 5-44 FREQ. 5-6 Frequency, setting 5-6 Function check 5-64 Function directory 10-2 Function group TCG 5-26 Function groups 4-5, 5-40...

  • Page 172

    4-13, 5-49 values, transferring 8-9 MEMO 5-53 Memo function 8-17 Menu line 4-7 Methods of assessing flaws 1-6 MTL VEL 5-5 Krautkramer USN 52R/USN 52L NiCd cells charging 7-2 handling 7-3 maintenance of 7-2 On/Off key 4-11 Operating frequency, setting 5-6 Order no.

  • Page 173

    Second operating level 5-42 SEIKO 5-58, 6-3 Selecting a file 5-47 Sensitivity, calibrating 5-24 Serial interface 8-2 Set language 4-13 SET# 5-15 Settings, storing 5-15 Software 1-3 Sound velocity fixed values, preselecting 5-45 setting 5-5 Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 174

    8-10 of display contents 8-6 Transfer speed, setting 5-57 UltraDOC 6-5 Ultrasonic flaw detectors 1-3 UNIT 4-13 USN 52R / USN 52L Differences 4-2 V-path error 5-21 VALUE 5-48 VELOCITY #1, #2 5-45 Wall thickness measurements 1-5 Issue 05, 02/00...

  • Page 175

    Index X-VALUE 5-60 ZERO 5-13 Zoom key 4-12 12-8 Issue 05, 02/00 Krautkramer USN 52R/USN 52L...

  • Page 176

    Option DGS Operating Manual...

  • Page 177

    This issue 02, 05/99 applies to the following software version: R5 TCG/DGS R6 TCG/DGS L4 TCG/DGS L5 TCG/DGS All rights reserved for technical changes! DGS-2 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS...

  • Page 178

    Function group DGS mode ... DGS-11 Menu functions ... DGS-12 Function table DGS mode ... DGS-13 Menu functions ... DGS-14 Krautkramer USN 52R/USN 52L Option DGS Operating the DGS ... DGS-17 3.1 Storing a new probe ... DGS-18 3.2 Preparing the DGS evaluation ... DGS-20 3.3 Carrying out a DGS evaluation ...

  • Page 179

    DGS-4 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS...

  • Page 180: Introduction

    Introduction Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-5...

  • Page 181: How To Measure With The Dgs

    The factor S is always constant for one curve of the set of curves. The following illustrates the general DGS diagram. This diagram is standardized with regard to the near-field length and the element diameter: Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS How to measure with the DGS...

  • Page 182

    • material velocity in the delay line. Krautkramer USN 52R/USN 52L Option DGS You can adjust all these parameters on the USN 52R/ USN 52L option DGS so that you are able to use the DGS method with many different probes and on differ- ent materials.

  • Page 183: Overview Of The Method Of Proceeding

    With a saturation over 100% and below 10%, the DGS curve is always horizontal. DGS-8 Overview of the method of proceeding Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS...

  • Page 184: Overview Of The Dgs Menu

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

  • Page 185: Dgs Mode

    – Press F to return to the first operating level. DGS-10 In the menu line now the menu DGS is displayed in- stead of DAC. The corresponding function group is displayed. Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS DGS mode...

  • Page 186: Function Group Dgs Mode

    – adjustment of the recording limit, – switching-on of the DGS mode and the DGS curve display, – shifting of the gate to select the echo to be evaluated. Krautkramer USN 52R/USN 52L Option DGS Overview of the DGS menu Issue 02, 03/99 DGS-11...

  • Page 187: Menu Functions

    DGS-12 n i f e l f . l e e t i n i f n i t Issue 02, 03/99 l a t N r o O Krautkramer USN 52R/USN 52L Option DGS DGS mode...

  • Page 188: Function Table Dgs Mode

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

  • Page 189: Menu Functions

    Issue 02, 03/99 N r o O N r o O l l o t e l Krautkramer USN 52R/USN 52L Option DGS DGS mode o i t...

  • Page 190

    DGS mode i t a f i d Krautkramer USN 52R/USN 52L Option DGS o l l e l f l f e e l f y l l e t i . ) l l o i t o i t...

  • Page 191

    DGS-16 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS...

  • Page 192: Operating The Dgs

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

  • Page 193: Storing A New Probe

    Attention: You cannot estimate any flaw sizes with the DGS op- tion of the USN 52R/USN 52L. You can only compare the reflecting power of a natural flaw with that of a theo- retical flaw (= disk-shaped reflector) at the same depth.

  • Page 194

    The entry position and character are always marked by a flashing cursor. You can enter all required characters in any chosen order. Krautkramer USN 52R/USN 52L Option DGS – Press the keys T or V in order to change the entry position.

  • Page 195: Preparing The Dgs Evaluation

    • entry of probe parameters, • entry of all material-related influencing factors, • entry of recording level according to the corresponding standard specifications, • recording of the reference echo. Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS Preparing the DGS evaluation...

  • Page 196

    – Adjust the A-scan and digital display (please refer to USN 52R/USN 52L Operating Manual, Chapter 5). Attention: Proper A-scan and digital calibration will assure that the MTL VEL and ZERO parameters are set correctly, which is necessary for an accurage DGS curve.

  • Page 197

    This value indicates changes in sensitivity (in dB) for the evaluation of discontinuities when the reference block and the test object have different coupling condi- tions (surface roughness and/or curvature). Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS Preparing the DGS evaluation...

  • Page 198: Carrying Out A Dgs Evaluation

    You have now made all basic adjustments and are able to carry out a DGS evaluation. Krautkramer USN 52R/USN 52L Option DGS 3.3 Carrying out a DGS evaluation When carrying out a DGS evaluation, you compare the reflecting power of a natural reflector with that of a disk- shaped reflector.

  • Page 199

    – Enter the required recording level in the ERS function: N or O – Switch the DGS mode on in the DGS function: N or O Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS Carrying out a DGS evaluation...

  • Page 200

    The gain currently selected is highlighted in the display. – Vary the corresponding value with N or O. Krautkramer USN 52R/USN 52L Option DGS If you vary the reference gain, the curve moves verti- cally up or down, depending on the direction in which you are varying the gain.

  • Page 201: Switching Off The Dgs Mode

    N or O After switching off the DGS mode, the reference echo remains stored. You can clear it by pressing M be- longing to the GAIN function. Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS Switching off the DGS mode...

  • Page 202: Storing Data

    Scan including the reference echo. Attention: When recalling stored data sets make certain that for further operation with the instrument the same probe has to be used as for recording the reference echo. Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-27...

  • Page 203

    DGS-28 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS...

  • Page 204: Codes For Remote Control

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

  • Page 205

    Codes for remote control The USN 52R/USN 52L option DGS can receive coded commands from a PC. To enable this you must connect the instrument with the PC via the RS232 interface. (Please refer to USN 52R/USN 52L Operating Manual, chap.

  • Page 206

    – – Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 Codes for remote control DGS-31...

  • Page 207

    DGS-32 Issue 02, 03/99 Krautkramer USN 5 /USN 52L Option DGS...

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