Epson USN 52L, USN 52R Gate adjustment

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 or

calibration of multi-echo sequences and enables the

measurement of the distance between two echoes. The

flaw Gate b is dependent of Gate a and is correspond-

ingly adjusted:

•b-START: at 10% to 90% of a-WIDTH (after a-

START)

•b-THRESH: 10% to 90% screen height

A Attention:

When both gates are superimposed on each other, the

wrong values can be indicated with a wrongly selected

Gate b.

Both gates evaluate only within the visible area of the

display. If there are gates or parts of gates outside this

area, an evaluation will not be made.

The gates have two tasks:

• They monitor the area of the test object in which a

flaw is expected. When an echo exceeds or falls

below the gate, a warning signal can be activated.

• They select the echoes for the digital time-of-flight or

amplitude measurement.

Operation Adjustment of the USN 52R/USN 52L

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 or

calibration of multi-echo sequences and enables the

measurement of the distance between two echoes. The

flaw Gate b is dependent of Gate a and is correspond-

ingly adjusted:

•b-START: at 10% to 90% of a-WIDTH (after a-

START)

•b-THRESH: 10% to 90% screen height

A Attention:

When both gates are superimposed on each other, the

wrong values can be indicated with a wrongly selected

Gate b.

Both gates evaluate only within the visible area of the

display. If there are gates or parts of gates outside this

area, an evaluation will not be made.

The gates have two tasks:

• They monitor the area of the test object in which a

flaw is expected. When an echo exceeds or falls

below the gate, a warning signal can be activated.

• They select the echoes for the digital time-of-flight or

amplitude measurement.

Operation Adjustment of the USN 52R/USN 52L

Contents

Main USN 52R / USN 52L Technical Reference and Operating Manual Ident No. 28 642 1. Introduction ....................................... 1-1 2. Standard package and accessories ................................2-1 3. Setting into operation ....................... 3-1 1. Introduction ....................................... 1-1 2. Standard package and accessories ................................2-1 3. Setting into operation ....................... 3-1 4. Basics of operation ........................... 4-1 5. Operation ........................................... 5-1 4. Basics of operation ........................... 4-1 5. Operation ........................................... 5-1 Page 6. Documentation.................................. 6-1 7. Servicing and maintenance.............. 7-1 8. Interfaces, Peripherals 8 .................. 8-1 6. Documentation.................................. 6-1 7. Servicing and maintenance.............. 7-1 8. Interfaces, Peripherals 8 .................. 8-1 Page Page Page 1.1 Safety information Storage batteries Introduction Defects/errors and exceptional stresses Introduction 1.1 Safety information Storage batteries Defects/errors and exceptional stresses Software 1.2 Important notes Preconditions for testing with ultrasonic flaw detectors Software 1.2 Important notes Preconditions for testing with ultrasonic flaw detectors Operator training Technical test requirements Operator training Technical test requirements Limits of testing Wall thickness measurements with ultrasonics Effect of the material of the test object Limits of testing Wall thickness measurements with ultrasonics Effect of the material of the test object Effect of temperature variations Measurement of remaining wall thickness Assessing flaws using ultrasonics Flaw boundary scanning method Effect of temperature variations Measurement of remaining wall thickness Assessing flaws using ultrasonics Flaw boundary scanning method Echo display comparison method 1.3 USN 52R/USN 52L Special features of the two versions: Introduction 1.3 USN 52R/USN 52L Special features of the two versions: Introduction Page 1.4 Remarks on this manual Before starting for the first time Introduction Getting to know the adjustment functions Service 1.4 Remarks on this manual Before starting for the first time Getting to know the adjustment functions Service Specifications and basic settings Layout of this manual Page Page Page 2.1 Standard package 2.2 Required accessories 2.3 Recommended accessories Standard package and accessories 2.2 Required accessories 2.3 Recommended accessories 2.4 Recommended outside products Page Page 3.1 Positioning the USN 52R/ 3.2 Power supply 3.1 Positioning the USN 52R/ 3.2 Power supply Battery operation Inserting the batteries A Battery operation Inserting the batteries A Using the battery charger 3.3 Probe connection 3.4 Starting the USN 52 R Switching on 3.3 Probe connection 3.4 Starting the USN 52 R Switching on Reset 3.5 Screen saver Setting into operation Reset Page 4.1 USN 52R and USN 52L Basics of operation USN 52R 4.1 USN 52R and USN 52L Basics of operation Page 4.2 Display Page Indications beneath the A-scan Basics of operation Indications beneath the A-scan Basics of operation Page 4.2 Keypad Page 4.3 Operational concept Changing the operating levels Basics of operation Selection of function groups and functions Setting the function 4.3 Operational concept Changing the operating levels Selection of function groups and functions Setting the function Accelerated adjustment 4.4 Function keys Selection of measured value for enlarged display 4.5 Keys for special functions Basics of operation Only USN 52L 4.5 Keys for special functions Basics of operation Only USN 52L 4.6 Important basic settings Set language Setting the measurement units 4.6 Important basic settings Set language Setting the measurement units Page Page 5.1 Function overview (first operating level) Operation 5.2 Adjustment of the USN 52R/ GAIN Gain adjustment -Setting the dB STEP 5.2 Adjustment of the USN 52R/ GAIN Gain adjustment -Setting the dB STEP Selection of basic data RANGE Calibration range Selection of basic data RANGE Calibration range MTL VEL Setting the sound velocity DELAY Setting the delay MTL VEL Setting the sound velocity DELAY Setting the delay Page DAMPING Electrical damping of the probe RECTIF. Setting the rectification mode DAMPING Electrical damping of the probe RECTIF. Setting the rectification mode Setting the pulser PULSER Changeover of initial pulse Setting the pulser PULSER Changeover of initial pulse REJECT Suppression of spurious echoes REP-RATE Repetition rate REJECT Suppression of spurious echoes REP-RATE Repetition rate Gate adjustment a-THRESH Determination of threshold a-START Start of the gate a-WIDTH Width of the gate a-THRESH Determination of threshold a-START Start of the gate a-WIDTH Width of the gate Calibration functions a-START Gate start Calibration functions a-START Gate start MTL VEL Sound velocity ZERO Probe delay MTL VEL Sound velocity ZERO Probe delay Storing data RECALL Loading of a stored setting Storing data RECALL Loading of a stored setting SET# Selection of data set Entering and displaying data set names STORE Storing the instrument settings Clearing the instrument setting SET# Selection of data set Entering and displaying data set names STORE Storing the instrument settings Clearing the instrument setting Clearing all data Displaying stored A-Scans (preview) Clearing all data Displaying stored A-Scans (preview) 5.3 USN 52R/USN 52L calibration Calibration of display range 5.3 USN 52R/USN 52L calibration Calibration of display range Calibration with a straight-beam probe Page Calibration with angle-beam probes Calibration with a dual (T/R) probe Automatic calibration Preparing the instrument for digital measurement Calibrating the sensitivity B 5.4 DAC/TCG Function group TCG Operation Function group TCG Page 5.5 Recording a Distance- Amplitude Curve Operation Page Page 5.6 Echo evaluation with DAC/TCG DAC mode Operation DAC mode TCG mode 5.7 Measuring thickness Operation 5.8 Storing measured values - Data Logger Determining the number of FILES 5.8 Storing measured values - Data Logger Determining the number of FILES Selecting a FILE Clearing FILES Storing measured values Clearing FILES Storing measured values Viewing stored readings Clearing the measured values Viewing stored readings Clearing the measured values 5.9 Configuring the USN 52R/ Left Table Center Table Right Table GRATICULE Display graticule AMPLITUDE Amplitude display GRATICULE Display graticule AMPLITUDE Amplitude display FREEZE MODE Storage mode INTENSITY Display brightness (only USN 52R) FREEZE MODE Storage mode INTENSITY Display brightness (only USN 52R) VELOCITY #1 Preselecting fixed values for VELOCITY #2 sound velocity dB STEP Sets step range VELOCITY #1 Preselecting fixed values for VELOCITY #2 sound velocity dB STEP Sets step range GATE LOGIC Setting the gate logic FILE NUMBER Selecting a file LOCATION Selecting the measurement location FILE NUMBER Selecting a file LOCATION Selecting the measurement location VALUE Displaying the measured value FILE MODE Enabling the Data Logger VALUE Displaying the measured value FILE MODE Enabling the Data Logger LANGUAGE Setting the display language MEAS. UNITS Setting the measurement units LANGUAGE Setting the display language MEAS. UNITS Setting the measurement units 5.10 Data set names Data set names MEMO function 5.10 Data set names Data set names MEMO function 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 Page 5.11 Setting the RS232 interface BAUD RATE Setting the transfer speed LENGTH Setting the length of a byte PARITY Parity check 5.11 Setting the RS232 interface BAUD RATE Setting the transfer speed LENGTH Setting the length of a byte PARITY Parity check COPY MODE Setting data communication Printer type Operation COPY MODE Setting data communication Printer type 5.12 Setting the flaw location calculation ANGLE Angle of incidence THICKNESS Material thickness Operation X-VALUE X-value of the probe Operation ANGLE Angle of incidence THICKNESS Material thickness X-VALUE X-value of the probe O-DIAM Test object diameter Displaying the measured values O-DIAM Test object diameter Displaying the measured values 5.13 Setting the measurement methods TOF Measurement mode for time of flight 5.14 G Locking set values 5.15 Function check 5.14 G Locking set values 5.15 Function check Page Page Page Page Page Page Page Page Page 6.1 Printing instrument settings and display contents Preparing the printer Documentation BAUD RATE Transfer rate LENGTH Word length 6.1 Printing instrument settings and display contents Preparing the printer BAUD RATE Transfer rate LENGTH Word length PARITY Parity test Page Page 6.2 Documentation with the PC program UltraDOC Page Page 7.1 Cleaning the USN 52R/ 7.2 Maintenance of NiCd cells Servicing and maintenance Charging NiCd cells Required 7.1 Cleaning the USN 52R/ 7.2 Maintenance of NiCd cells Charging NiCd cells Required Handling NiCd cells Handling AlMn batteries Handling NiCd cells Handling AlMn batteries Page Page 8.1 Interfaces Serial interface RS 232 Interfaces, Peripherals 8.1 Interfaces Serial interface RS 232 Interfaces, Peripherals Layout of 7 pin Lemo socket (RS 232) Layout of 7 pin Lemo socket RS 232 Page 8.2 Connection of a peripheral 8.3 Transferring the display contents Intelligent Serial Interface Interfaces, Peripherals Intelligent Serial Interface 8.4 Printing Data Logger report 8.3 Transferring the display contents 8.4 Printing Data Logger report Data Logger report format Interfaces, Peripherals 8.5 Transferring measurement values Transferring measurements values in the Data Logger to a PC 8.5 Transferring measurement values Transferring measurements values in the Data Logger to a PC Printing display contents and instrument settings Transfer formats Interfaces, Peripherals Printing display contents and instrument settings Transfer formats Page 8.6 USN 52R/USN 52L remote operation Krautkramer USN 52R/USN 52L Issue 05, 02/00 8-13 USN 52R/USN 52L remote operation Interfaces, Peripherals Krautkramer USN 52R/USN 52L Issue 05, 02/00 8-13 Page Page B L H G F B A H G F 8.7 Configuring the MEMO function Defining data header Sequence of commands of the MEMO code: 8.7 Configuring the MEMO function Defining data header Sequence of commands of the MEMO code: Interfaces, Peripherals Page 8.8 Analog outputs Analog voltage for the echo amplitude (echo in the monitor gate) Analog voltage for the sound path of an echo Analog voltage for the echo amplitude (echo in the monitor gate) Analog voltage for the sound path of an echo TTL switching output Page Page Page Page Page Page Page 10.1 Function directory Page Page Page Page 10.2 EC Certificate of Conformity 10.3 Service addresses Appendix 10.3 Service addresses Page Page Page Page Page A B C A B C D E D E F G H I L F G H I L M N O P M N O P R S R S T U V W T U V W Page Page Page Page Page Page 1.1 How to measure with the DGS Introduction Page 1.2 Overview of the method of proceeding Introduction Page 2.1 DGS mode Switch from TCG to DGS mode 2.1 DGS mode Switch from TCG to DGS mode Function group DGS mode Page Page Page Overview of the DGS menu Page Page 3.1 Storing a new probe Operating the DGS Page 3.2 Preparing the DGS evaluation Page Page 3.3 Carrying out a DGS evaluation Page Page Operating the DGS 3.4 Switching off the DGS mode Operating the DGS 3.5 Storing data Page Page Page Krautkramer USN 52R/USN 52L Option DGS Issue 02, 03/99 DGS-31