Function group TCG, DAC/TCG mode | Epson USN 52R, USN 52L instruction

Operation	DAC/TCG

Function group TCG

With these functions you can operate all DAC/TCG modes.

Use C to go to the function group TCG:

DAC/TCG mode

With this function you can determine the DAC/TCG mode:

OFF: No DAC/TCG is active.

DAC: The already stored Distance-Amplitude Curve is displayed on the screen.

TCG: The TCG is calculated on the basis of the curve so that all reference echoes reach the same screen height: TCG (=Time-Corrected Gain).

Echoes from the test object are now evaluated in rela- tion to a reference echo.

HNote:

•With active TCG the symbol T is displayed in the status line.

•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.

5-26

Issue 05, 02/00

Krautkramer USN 52R/USN 52L

Image 71

Epson USN 52R, USN 52L manual Function group TCG, DAC/TCG mode

Contents

Technical Reference and Operating Manual USN 52R / USN 52L Index Introduction Function overview Basics of operation Storing measured values Data Logger Configuring the USN 52R/USN 52LRecording a Distance-Amplitude Interfaces Printing instrument settingsPrinting display contents and instrument Documentation with the PC program 10-8 10-210-7 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Introduction Storage batteries Safety informationDefects/errors and exceptional stresses Introduction Software Preconditions for testing with ultrasonic flaw detectorsImportant notes Technical test requirements Operator training Effect of the material of the test object Limits of testingWall thickness measurements with ultrasonics Flaw boundary scanning method Assessing flaws using ultrasonicsEffect of temperature variations Measurement of remaining wall thickness Echo display comparison method USN 52L Special features of the two versionsUSN 52R/USN 52L USN 52R Introduction Remarks on this manual Getting to know the adjustment functionsService Specifications and basic settings Keys Layout of this manualDescriptions of functions Operating steps Issue 05, 02/00 Krautkramer USN 52R/USN 52L Standard package and accessories Standard package and accessories Product type Description Standard package Product type Description Order no Required accessoriesRecommended accessories GCH1 Recommended outside products Issue 05, 02/00 Krautkramer USN 52R/USN 52L Setting into operation Positioning the USN 52R/ USN 52L Power supplySetting into operation Nickel Cadmium NiCd Left Alkaline Alk Right Setting into operation Battery operationInserting the batteries AAttention Status Using the battery chargerLED Probe connection Starting the USN 52 R Switching on Screen saver Reset Basics of operation Basics of operation USN 52R and USN 52L USN 52L Scan display Display Functions on the display Angle and X-VALUE Status line Indications beneath the A-scanMeasurement line Menu line Special keys KeypadFunction keys Special keys of the USN 52L for setting the display Changing the operating levels Setting the functionAccelerated adjustment Operational concept Selection of measured value for enlarged display Function keys Only USN 52L Keys for special functions Operation Important basic settingsSetting the measurement units Set language Issue 05, 02/00 Krautkramer USN 52R/USN 52L Operation Operation Function overview first operating level Setting the dB Step Adjustment of the USN 52R/ USN 52LGain Gain adjustment Coarse in steps Selection of basic dataRange Calibration range Delay Setting the delay MTL VEL Setting the sound velocity FREQ. Frequency Setting the receiver Damping Electrical damping of the probe RECTIF. Setting the rectification mode Pulser Changeover of initial pulse Setting the pulser REP-RATEset the required percentage value with M Start Gate adjustment Width Width of the gate Thresh Determination of thresholdStart Start of the gate Start Gate start Calibration functions MTL VEL Sound velocity Zero Probe delayAdjustment of the freely selected value Storing data Recall Loading of a stored settingData set names and Memo mode in .10 on SET# Selection of data set Store Storing the instrument settingsClearing the instrument setting Displaying stored A-Scans preview Clearing all data Calibration of display range USN 52R/USN 52L calibration Calibration with a straight-beam probe Straight-beam probe with delay Unknown sound velocity Calibration with angle-beam probesKnown sound velocity Calibration with a dual T/R probe Flank modePath error Higher sound velocity Automatic calibration Gate Logic Preparing the instrument for digital measurementPreconditions Recall of dB difference Set Amplitude to dB Threshold Calibrating the sensitivity B DAC/TCG Function group TCG DAC/TCG mode Operation Recording a Distance- Amplitude Curve Operation Operation Amplitude is set to dB Threshold Echo evaluation withDAMPING, FREQ.,RECTIF., MTL VEL, Pulser and Reject DAC mode TCG mode Measuring the thickness Measuring thicknessPreparations Number of measurement locations = 2500 Number of Files Storing measured values Data LoggerDetermining the number of Files Selecting a File File Number File Mode Thickness Copy Mode Datalogger MeasureClearing Files Storing measured values Clearing the measured values ErrorViewing stored readings Configuring the USN 52R/ USN 52L Left function group Left Table Value Diam Center Table MEAS.UNITS Right Table Amplitude Amplitude display Graticule Display graticule High LOW Freeze Mode Storage modeIntensity Display brightness only USN 52R DB Step Sets step range Gate Logic Setting the gate logic Location Selecting the measurement location File Number Selecting a file Clearing the measured value File Mode Enabling the Data LoggerValue Displaying the measured value MEAS. Units Setting the measurement units Language Setting the display language Memo function Data set namesData set names Data SET Name Entry of a data set name Data SET Direc Data set directory Memo Storing additional information Entering texts Filling in a data header Data set names Issue 05, 02/00 Krautkramer USN 52R/USN 52L Parity Parity check Setting the RS232 interfaceBaud Rate Setting the transfer speed Length Setting the length of a byte Mode Copy Mode Setting data communicationPrinter type Hard Copy Setting the flaw location calculation Value X-value of the probe Angle Angle of incidenceThickness Material thickness Displaying the measured values Diam Test object diameter Measure Method of measurement for sound path measurement Setting the measurement methods TOF Measurement mode for time of flight Auxiliary devices Locking set valuesFunction check Power supply Range Suppression Reject Damping Rectification Gate threshold Thickness measurement Issue 05, 02/00 Krautkramer USN 52R/USN 52L Documentation Printing instrument settings and display contents Copy Mode Documentation Documentation with the PC program UltraDOC Issue 05, 02/00 Krautkramer USN 52R/USN 52L Servicing and maintenance Charging NiCd cells Cleaning the USN 52R/ USN 52LMaintenance of NiCd cells Servicing and maintenance Handling AlMn batteries Handling NiCd cells Issue 05, 02/00 Krautkramer USN 52R/USN 52L Interfaces, Peripherals Serial interface RS InterfacesInterfaces, Peripherals Interfaces, Peripherals Layout of 7 pin Lemo socket RS Layout of 4 pin Lemo socket charger socket, switching output Baud Rate Connection of a peripheral Printing Data Logger report Transferring the display contents Data Logger report format Operation Set Copy Mode to Report Interfaces, Peripherals Transferring measurements values in the Data Logger to a PC Transferring measurement values Transfer formats Printing display contents and instrument settings Byte-No Data Format X.XXX Esccodereturn USN 52R/USN 52L remote operation Interfaces, Peripherals Delay Length Store Number of fields Configuring the Memo functionSequence of commands of the Memo code Defining data header Example for a header definition Eschn 9RETURN Entering Memo text Lemo Analog outputs Measure = 0 to 1st RF modeAnalog voltage for the sound path of an echo Rectified echoes TTL switching output Specifications Specifications Frequency -3dB ranges Measurement resolutionEcho height resolution Display rectification DAC/TCG Probe connectors Storage temperatureOperating temperature Battery mode Issue 05, 02/00 Krautkramer USN 52R/USN 52L Appendix Appendix Function directory Damping Rcvr Curve TCGDAC Echo TCG DAC/TCG TCG Gain Data SET MEMData SET Preview MEM FREQ. Rcvr RECTIF. Rcvr MTL VEL BasicPulser Puls Recall MEM Velocity #1 Reject PulsREP-RATE Puls Store MEM EC Certificate of Conformity France Service addressesKrautkrämer GmbH & Co. oHG Japan USA 10-10 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Changes Changes Index Copy Mode DAC 12-4 Issue 05, 02/00 Krautkramer USN 52R/USN 52L Parameter Dump 5-58, 6-3 Parity Reject Krautkramer USN 52R/USN 52L Issue 05, 02/00 12-7 Value Zero 5-13 Zoom key Operating Manual Option DGS R5 TCG/DGS R6 TCG/DGS L4 TCG/DGS L5 TCG/DGS DGS-6 ContentsDGS-17 DGS-29 DGS-4 Issue 02, 03/99 Krautkramer USN 52R/USN 52L Option DGS DGS-5 How to measure with the DGS DGS-7 Overview of the method of proceeding Overview of the DGS menu Overview of the DGS menu DGS modeSwitch from TCG to DGS mode Function group DGS mode Gain Menu functions Function table DGS mode PROBE-# ATT-REF Page Operating the DGS Operating the DGS Storing a new probe Operating the DGS Preparing the DGS evaluation Diameter of the equivalent Operating the DGS Carrying out a DGS evaluation Or O Switching off the DGS mode Switching off the DGS mode Storing data Page Codes for remote control Codes for remote control ATT-REF DGS-32 Issue 02, 03/99 Krautkramer USN 5 /USN 52L Option DGS