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Einstein- DGSII

Einstein-II DGS

Einstein-II DGS

Operating Manual

Einstein-II DGS

CONTENTS

1> Introducing Einstein-II DGS …….………………….. 1

2> How does an Ultrasonic Flaw Detector work……….2 4

3> Parts and Controls of Einstein-II DGS .……………. 5

4> Operating detail …………………………………….. 9

5> Time/Date setting, Factory Default Setting …………32

6> Interface of Printer …………………………………..33

7> Power Supply …………………………………………34

8> Precaution ……………………………………………..35

9> Specification of Einstein-II DGS …………….………36

10> Menu Tree ……………………..…………….…….…40

Einstein-II DGS

1 Introducing Einstein-II DGS Einstein-II DGS is a portable, compact, light in weight and user friendly Digital Ultrasonic Flaw Detector. Einstein-II DGS has COLOR LCD display, it provides wide viewing angle and allows fast scanning speed. Fully charged battery gives continuous working of eight hours and charging time is just 5 to 6 hours. Trace pattern can be directly printed out on conventional PC printer having serial port for interface or can be transferred to PC via RS232 Serial port for storage of data.

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2 How does an Ultrasonic Flaw detector Work Einstein-II DGS is a single channel Ultrasonic-testing instrument used for the inspection of homogeneous material for the presence of inclusions, porosity and other discontinuities that could affect the performance of material and components. It can also be used for thickness gauging of homogeneous material, requiring access from only one side of the test piece. High frequency sound (Ultrasonic sound) waves are introduced into the test material/part from a transducer/probe that is usually coupled to the test piece by water or other suitable coupling liquid. The transducer converts electric signals to Ultrasound and vice versa. A short burst of Ultrasound is introduced into test material so some or all of the energy is reflected by discontinuities. The reflection of the ultrasound energy is a function of the ratio between the acoustic impedance of the discontinuity and the base material. The greater the impedance ratio the more sound energy will be reflected. The principle of Ultrasonic testing is shown in fig. 1. It shows the ultrasonic energy generated in the test piece and resultant instrument display. Thickness gauging with Einstein-II DGS Operates on the principle of the time-of-flight

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measurement. This principle utilizes the precise timing of the transit time of a short burst of ultrasound energy, through a material under test. The ultrasound waves travel to the far side of the test piece and reflect back to the transducer/probe and a measurement is obtained.

Basically three typed of transducers/probes are available for different types of applications:

1> Straight beam Probe (Normal probe)

2> TR probe (Dual crystal probe)

3> Angle beam Probe

1> Straight beam Probe: This probe introduces ultrasound normal to the test piece surface utilizing longitudinal or compression waves. Normal beam probe is used mostly for flaw detection and thickness gauging

(refer figure 1.)

2> TR probe: This probe contains separate transmitting and receiving elements as showing in figure 2 usually mounted on delay lines. This design improves near surface resolution by separating the initial pulse from the received echoes. TR probe is suitable for the thickness gauging of pitting and corrosion and also for better surface resolution.

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3> Angle Beam Probe: This probe introduces ultrasound at an angle to the surface of the test piece. In most angle beam probes, the wave energy is mode converted from a longitudinal wave to a shear wave by the refraction principle. This probe is suitable for inspection of the welds. The reason for this is its ability to position the transducer/probe away from the weld bead yet propagate energy into the weld zone. Another reason to use angle beam testing on the welds is to position the sound beam more normal to the expected discontinuities since the flaws in welds are usually perpendicular to the test piece (except porosity). Figure 3 shows the principle of angled beam weld testing.

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3 Parts and Controls of Einstein-II DGS

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1. POWER key : Einstein-II DGS can be switched ON and OFF using this key. 2. ZOOM key : By pressing this key A-Scan spreads over to full screen. Menu parameters disappear from LCD and only A-Scan is displayed. By pressing any other key, A-Scan is restored to normal size and menu parameters appear again . 3. FREEZE key : By pressing this key once A-Scan can freeze. By pressing second time selects Peak Freeze mode. In this mode it hold echo dynamic pattern which is helpful for a angle beam inspection to locate peak signal.

4. LOCK key : By pressing this key all function (keys) get locked which prevents accidental pressing of any key. To unlock, simultaneously press Step key (9) and LOCK key (4). 5. LCD Screen : It displays A-Scan Trace pattern and Menu Parameters.

6. Battery Status : When all the three cells are displayed empty, then the battery Indicator needs to be recharged. 7. Gain Step : This location displays Gain Step value. This value can be changed by using “dB STEP”(10) key. It follows 0.5, 1, 2, 6, 12 and 20 dB Step sequence.

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8. Menu keys : By using these keys the Menu can be changed. 9. Hot key : When this key is pressed simultaneously with any other parameter key then the change in value takes place in larger steps. 10. dB STEP key : Any Gain step out of 0.5, 1, 2, 6, 12 or 20 dB can be selected using this key. 11. GAIN UP/DN : Gain can be incremented/decremented using these keys in the step selected by dB STEP key.

12. UP/DN key : Respective parameters can be incremented or decremented using these keys.

13. REJECT : Rejection function activation is indicated by this LED. LED When Rejection value is zero then LED is OFF. When rejection value is not zero then LED illuminates. 14. MONITOR LED : It is visual indication of MONITOR getting triggered.(LED 1 and LED 2 represent Monitor Gage 1 and Gate 2 respective.)

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15. Parameter : All function (parameter) values are displayed in this area of Values LCD. 16. RX Connector : A probe is connected to the Receiver of Einstein-II DGS through this connector.(choice of BNC and LEMO ) 17. TX Connector : A probe is connected to the Transmitter of Einstein-II DGS through this connector.(choice of BNC and LEMO) 18. Charge Connector: Connect the charger here.

19. RS-232 Connector: Serial interface connector. For print-out on Serial PC printer/Computer connect supplied cable on this connector. 20. Battery : Battery is fitted in this compartment.

Compartment 21. Mode Status : Mode selection SINGLE or DUAL is displayed here. Indicator

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4 Operation detail Einstein-II DGS is user friendly, menu driven Ultrasonic Flaw Detector. To access any parameter, various menus are available. Details of all menus and parameters are as per below.

First menu is Basic menu. In this menu, Basic functions of an Ultrasonic Flaw Detector (UFD) like Range, Fine Range, Delay and Gain functions are covered.

ZERO : It is to calibrate Artificial zero of the probe.

RANGE : The required test range can be set directly in terms of mm/ inch. The range available for steel is from 10 to 5000 mm (0.50 to 200 inch) it steps through 10,25,50, 100, 125,200, 300,500,1000,2000,3000,4000 and 5000 mm with pressing hot key or in step of 1mm (0.5,1,2,5, 10, 15,20,25,30,50,100 150 and 200 inch) or in step of 0.2 inch).

VELOCITY : The required velocity can be set directly in terms of met./Sec (inch/sec). By pressing hot key it steps through preset value. In fine mode 1 met./sec. (0.0001 in/us). DELAY : Partial Range can be set using these keys. Exact shift/delay in mm (Inch) is displayed at the bottom.

ZERO 2200 RANGE 0100 MM VEL M/S 5920 DELAY 000.0MM GAIN 1 25.0 dB

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GAIN STEP: Gain step value can be set by using GAIN STEP key, it follows dB in steps of 0.5, 1, 2, 6, 12 or 20 dB.

GAIN : Gain can be increased/decreased as per value of step by using GAIN UP/DN keys.

Example: Einstein-II DGS is to be calibrated for 100 mm Test Range using Single crystal (Normal) probe.

> Set required range to 100 mm using RANGE UP/DN keys.

> Couple the probe on 25mm thickness of V1 reference block and set first echo at 25mm using ZERO UP/DN keys.

> Set 4th echo at 100 mm using VELOCITY UP/DN keys, if required.

> Repeat above two steps until both the echoes are at their respective positions.

> Amplitudes of the echoes can be varied using GAIN keys.

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Second Menu covers MONITOR GATE 1 functions.

GATE 1 : Gate can be changed to PLOGIC, NLOGIC, DAC, DAC –6, DAC-14 trigger, EXPAND or OFF.

PLOGIC : When PLOGIC is selected, the MONITOR is triggered if an echo is present within the gate and its height is equal to or crosses the set Threshold Level.

NLOGIC : When NLOGIC is selected, the MONITOR is triggered if there is no echo within the gate or the height is lower than the Threshold Level.

DAC : If DAC is turned ON and DAC is selected and if any echo signal equals or crosses DAC curve then monitor gates trigger.

DAC-6 : If DAC is made ON 6/14 and DAC-6 is selected then if any echo signal cross DAC-6 dB curve then monitor

gates trigger.

DAC-14 : If DAC is made ON 6/14 and DAC-14 is selected then if echo signal equals or crosses DAC-14 dB curve then monitor gates trigger.

EXPAND: When EXPAND is selected then the Scale expansion is activated and the GATE width is expanded to Full-screen width for a magnified view.

GATE 1 OFF START 0030.0 END 0100.0 LEVEL 040 % GAIN 1 25.0 dB

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START : Gate starting position can be set using START UP/DN keys. Using these keys Gate start can be directly set in terms of mm/inch.

END : Gate End position can be set using END UP/DN keys. Using these keys Gate end can be directly set in terms of mm/inch.

LEVEL : Gate Threshold Level can be directly set in terms of the percentage of the Full Scale Height (FSH). Example: The MONITOR to be triggered when any echo crosses the 50% FSH between 35mm and 80mm. > In the Gate setting, select PLOGIC using GATE UP/DN keys.

> Set Gate START to 35mm using START UP/DN keys.

> Set Gate END to 80mm using END UP/DN keys.

> Set Gate LEVEL to 50% using LEVEL UP/DN keys.

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Third Menu covers MONITOR GATE 2 functions. GATE 2 : Gate can be changed to PLOGIC, NLOGIC, or OFF. PLOGIC : When PLOGIC is selected, the MONITOR is triggered if an echo is present within the gate and its height crosses the set Threshold Level. NLOGIC: When NLOGIC is selected, the MONITOR is triggered if there is no echo within the gate or the height is lower than the Threshold Level. START : Gate starting position can be set using START UP/DN keys. Using these keys, Gate start can be directly set in terms of mm.

END : Gate End position can be set using END UP/DN keys. Using these keys, Gate end can be directly set in terms of mm. LEVEL : Gate Threshold Level can be directly set in terms of the percentage of the Full Scale Height (FSH).

GATE 2 OFF START 0040.0 END 0100.0 LEVEL 050 % GAIN 1 25.0 dB

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Forth Menu covers Memory storage/recall and Trace printout functions. MEMORY : Memory function can be selected A SCAN or SET-UP using MEMORY UP/DN keys.

MEM NO : Desired memory location can be selected using MEM NO UP/DN keys. When changing Memory no. If Data is stored and valid then asterisk (“*”) will be displayed next to “MEM NO”.

ACTION : Required functions like SAVE, RECALL, SEND, PRINT or DELETE, DETAIL can be selected using ACTION UP/DN keys. When DETAIL is selected it shows Note data of Stored A Scan it can be scroll by pressing MEM NO UP/DN keys.

ENTER :By pressing Right key of the ENTER, the ACTION selected Is performed. On pressing Left key Note menu will be

displayed and Side text menu will change for Text editing as shown. If required then edit/change Note detail. By pressing appropriate keys Note can be edited. For exit press Exit UP/DN keys.

MEMORY A SCAN MEM NO* 001 ACTION RECALL NOTE ENTER GAIN 1 25.0 dB

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Example: To SAVE current Calibration and A scan in Memory no 3.

> Get required pattern which is to be stored. Press FREEZE key.

> Select A SCAN using Memory UP/DN keys.

> Set MEM NO to 3 using MEM NO UP/DN keys.

OPERATOR: ABC JOB DETAIL: NIL DEFECT DETAIL: NIL REMARK: NIL

CURSOR MOVE CURSOR UP/DN CHAR SCROLL

NOTE EXIT

GAIN 1 25.0 dB

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> Set ACTION to SAVE using ACTION UP/DN keys.

> Then press NOTE/ENTER Left key so Note menu will be displayed. If required then edit it and exit from note menu.

> Then press NOTE/ENTER Right key to store A Scan. By pressing Right key Current Calibration, A Scan pattern and Note DATA will be stored UP/DN key to store the current calibration set-up at memory no. 3. Note: If data is already stored at this location, then the message will be displayed on LCD screen as “OVER WRITE DATA” “YES - PRESS HOT KEY”, “NO – PRESS ANY KEY”. So press HOT KEY to overwrite data.

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Fifth Menu covers Rejection of unwanted signal, Set Reference, Video setting and Testing mode selection function.

REJECT : For the rejection of unwanted signals. Using REJECT UP/DN keys Rejection level can be set as per requirement. It can be set directly in terms of percentage of FSH. Activation of this function is indicated by REJ LED(13). POWER : Hi or Low Transmitter power can be selected using POWER UP/DN keys. DAMPING: Probe Damping Hi/Low can be selected using DAMPING UP/DN keys. MODE : Test Mode for the use of Single or Dual Crystal probes can be selected using MODE UP/DN keys.

REJECT 000 % POWER LOW DAMPING LOW MODE SINGLE GAIN 1 25.0 dB

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Sixth menu covers the required functions for DAC curve AWS or DGS curve as per selected in menu 10 CONFIG parameter.

DAC : DAC setting can be switched to DRAW, ON ,ON 6/14, TCG ON or OFF using DAC UP/DN keys. DRAW mode, peak points of echo signals are selected.

ON mode :The selected peak points are digitally connected to form a DAC curve.

ON 6/14 mode: -6dB DAC and –14dB DAC will be also displayed.

TCG ON: Time Gain Correction activated as per DAC so it brings echo signal to same height irrespective of depth.

OFF mode :DAC curve will be not displayed on LCD.

STRT G1 :Start of the GATE 1 can be set using STRT G1 UP/DN keys. To select any peak of the echo signal, move the gate on the echo signal and then press ENTER UP/DN

key. POINT value is automatically incremented to indicate next point.(If GATE 1 is OFF then turn to PLOGIC). POINT : It indicates how many points are selected to draw DAC curve.

PRESS : Press ENTER UP/DN keys to accept the peak points selected by the GATE 1.

DAC OFF STRT G1 030% POINT 001 PRESS ENTER GAIN 1 25.0 dB

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PRESS/ENTER : Parameter will be changed to “T-CORR” when DAC is On or TCG is ON. Gain of machine can be change without curve height. It can be used for Transfer/Scanning gain correction. Example: To digitally draw DAC curve to join four peaks of the echo signals using 25mm thick reference block and range of 100mm.

> Set Gain so that all four peaks are visible on the LCD screen above 5% FSH.

> Set DAC to DRAW using DAC UP/DN keys.

> Move cursor using STRT G1 UP/DN keys to cover the first echo. If GATE 1 is OFF then switch to PLOGIC.

> Press ENTER UP/DN key to accept it and Point No. is incremented automatically.

> Repeat above two steps for second, third and forth echo.

> Set DAC to ON using DAC UP/DN key. Now DAC Curve will be displayed on LCD.

Note: Cursor need not touch the echo for selection and acceptance of the peak point.

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AWS Function functions will be displayed as per selected in menu 10 CONFIG parameter.

AWS : AWS setting can be switched to SET, MEASURE or OFF using AWS UP/DN keys. SET mode, Make GATE 1 to PLOGIC then Bring reference echo of reflector in between 40 to 60% , Press ENTER parameter key so gain of reference echo is recorded and displayed as REF GAIN. (RG)

MEASURE mode : Display “IL” (Indication level) dB value to bring echo to reference level.

AF : Display attenuation factor to correct for the depth of the echo signal. IR : Display indication rating as per AWS code. IR=IL-RG-AF.

Example: > Select MEASURE to ON. > Set GATE 1 to “PLOGIC” > Couple probe on reference defect and set gain value so echo height within

40 to 60% of Screen. > Set GATE 1 in such a way so echo signal within GATE. > Then press SET REF /ENTER key so required gain to bring echo to 50% is recorded and displayed as a REF Gain in GAIN box. > Set AWS to MEASURE so it starts to display Indicating rating as per AWS code.

AWS OFF STRT G1 030% GAIN 1 25.0 dB

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Indication rating is based below formula. IR=IL-RG-AF IL : Indicating Level… its gain value to bring echo height to reference level (50%). RG : Reference Gain.. Its Gain value to bring reference echo height to reference level(50%) AF : Attenuation Factor… its attenuation of signal in material as per AWS standard. Based on below formula. AF= (Sound path (in Inch) -1) * 2 IR : Indicating Rating… Its different in dB between the indication signal and reference signal with attenuation correction.

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DGS functions will be displayed as per selected in menu 10 CONFIG parameter. DGS : DGS setting can be switched to SELECT, ON or OFF using DGS UP/DN keys. In SELECT mode probe type , reference dia., reference type, required DGS curve dia. etc. can be selected. Refer DGS selection menu. In ON mode DGS curve will be displayed on Screen as per what is selected in DGS selection menu.

STRT G1 : To select echo peak as reference move GATE 1 using STRT G1 UP/DN keys. If GATE 1 is OFF then select to PLOGIC in Menu 2.

SET-REF :When switched to ON, reference echo within gate is registered and height of reference echo is brought to ref. curve height. When DGS is turned to ON then SET-Ref will automatically switched OFF.

TL-CORR : This correction is required if test object and reference block have different surface qualities. By varying TL-CORR gain will change but DGS curve height remains same.(It works when DGS is selected to ON).

DGS OFF STRT G1 030% DGS-REF OFF TL-CORR 00.0dB GAIN 1 25.0 dB

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DGS Selection Menu: When DGS is selected to “ SELECT ” DGS selection menu will be displayed on Screen. By pressing Menu UP/DN keys arrow(“ “) shifts. It indicates currently selected sub menu. For eg. To change SCAL NO move arrow to first bottom empty box then press corresponding UP/DN keys.

SCAL NO : It scrolls from 0 to 18. Select “0” for custom probe which one is not listed between 1 to 18. For custom probe select appropriate probe frequency and probe effective dia. For predefined probe, 1 to 18, it is not required.

PRBNAME : It displays Model name of predefined probe.( for scale no 1 to 18 but for scale 0 it will display “CUSTOM”). With each Memory set one Custom probe parameters will be stored.

SCAL NO

002 D EFFT

23.1 MM EXIT

DGS

SELECT PRBNAME

M2SN DGS-CRV

11.0 MM ATT-REF

00.0 dB STRT G1

030% PRBFREQ

2.00MHZ REFECHO

FBH ATT-OBJ

00.0 dB DGS-REF

OFF DEL-VEL

2500M/S REFSIZE

11.0 MM AMPCOR

00.0 dB TL-CORR

00.0 dB

↑ GAIN 1

25.0 dB

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PRBFREQ : It displays probe frequency of predefined probe. For custom probe select appropriate probe frequency by pressing appropriate UP/DN keys.

DEL-VEL :It displays Ultrasound velocity of probe delay line. It is fixed for predefined probes.

D-EFFT : It displays Effective diameter of probe crystals. It is fixed for predefined probe. Select appropriate value for Custom probe.

DGS-CRV :Select appropriate value for which diameter DGS curve is required.

REF-ECHO :Select reference type weather it is FBH or BW (Back wall).

REF SIZE :Select appropriate value as per reference reflector size.

ATT-REF :Select Ultrasound Attenuation factor of Reference object. (dB/meter).

ATT-OBJ :Select Ultrasound Attenuation factor of test object. (dB/meter).

AMPLCOR :This is gain correction. When Angle probe is used and reference echo is taken from 100 mm or 25 mm arc of V1/V2 reference block. Example: To plot DGS for 11 mm size equivalent reflector for M2SN probe. > Switch GATE 1 to PLOGIC. (NLOGIC will also work). > Select DGS in menu 10 under CONFIG parameter. It will not turn to DGS if DAC is selected to OFF. > Go to DGS menu 6.

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> Couple M2SN probe on 25 thick V1 block and calibrate for required range.

> Bring first echo within screen with height between 40 to 80 % FSH preferable.

> Set first back-wall echo signal within GATE 1 using STRT G1.

> Change DGS to “SELECT” by pressing DSG UP/DN keys.

> Move arrow below first sub menu by pressing Menu UP/DN Keys.

> Select SCAL NO to 2 by pressing corresponding UP/DN keys.

> Move arrow below second sub menu by pressing Menu UP/DN keys.

> Select DGS-CRV to 11.0 MM by pressing corresponding UP/DN keys.

> Select REFECHO to BW by pressing corresponding UP/DN keys.

>ATT-REF and ATT-OBJ to be set as per appropriate value. Here it is set to 0.

> For exit press EXIT UP/DN keys.

>Select SET-REF to ON so reference echo height is registered and brought to reference curve. (make sure reference echo is within GATE 1 with 40 to 80% FSH preferable).

> Now press DGS UP/DN key so it turns to ON and appropriate DGS curve will be displayed.

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Seventh menu covers the required functions for Thickness/Distance measurements.

MEASURE : MEASURE setting can be switched to ON or OFF using MEASURE UP/DN keys. In ON mode it will display thickness/distance of echo signal which is in-side the gate. In OFF mode it will not display thickness/distance.

X-OFF : Set X-OFF value to same as Angle probe index point to Front face distance so Surface Distance will be displayed on LCD will be distance from angle probe front face to defect position.

ANGLE : Value to be set as per Angle of the probe. If angle value not zero and Measure is set to ON then appropriate Surface and Depth of defect is calculated and display on LCD. THICK : Thickness value should be set as per the thickness of the

test piece, so as to enable in calculation of depth/distance accounting for multiple skips.

MEASURE OFF X-OFF 000.0 ANGLE 000 DEG THICK 100.0MM GAIN 1 25.0 dB

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Example: To measure Beam path, Surface and Depth distance when 45 deg. probe is used. > Go to GATE 1 menu and make Gate to PLOGIC/NLOGIC.

> Set Gate START and Gate END value in such a way so defect signal within the GATE.

> Set Gain or Threshold so height of the echo/defect beyond the GATE.

> Go to measure menu and set MEASURE to “ON”.

> Set angle value to 45 DEG. using angle UP/DN keys.

> Set appropriate THICK value so it can account multiple skips for DEPTH distance calculation. > Go to menu 11 and set MEA PO1 to PD, MEA PO2 to DP and MEA PO3 to SD so Sound path, Depth and Surface distance will be displayed on screen.

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Eighth menu covers the required functions for Thickness/Distance measurements.

TRIGGER: Select Measurement point Weather trigger by FLANK or on PEAK. HUD : In Head up Display selected measured value will be displayed if MEASURE is selected to ON in Menu 7. If ALL is selected then value of MEA PO1, MEA PO2 and MEA PO3 will be displayed in Head up Display. (For selection of measured value refer menu 11 detail) SET REF : To set any A-scan pattern as a reference, achieve reference pattern, then set SET REF ON, so reference pattern sets in background for easy comparison. A-scan Pattern From Memory location can be recalled and set as a reference.

UNIT : To set Measurement/Calibration Unit. It can be select Inches or Metric by pressing UNIT UP/DN keys. Note: When changing UNIT Calibration will be change.

TRIGGER FLANK HUD OFF SET REF OFF UNIT INCHES GAIN 1 25.0 dB

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Ninth Menu covers miscellaneous functions, which are described as below.

CLOCK : Clock can be switched ON or OFF using CLOCK UP/DN keys. If CLOCK is set to ON then date and time will be displayed at bottom of A-Scan. COLOR : LCD Color combination can be selected using COLOR UP/DN keys. VIDEO : Echo signals can be selected to appear as line (ENVELOP) or solid (FILLED) using VIDEO UP/DN keys. In ENVELOP mode, echo signals appear same as in Analog Ultrasonic Flaw Detector. In FILLED mode, echo signals looks solid for better visibility. BRIGHT : Brightness of LCD can be adjusted for better visibility

using BRIGHT UP/DN keys. Set Low brightness when used for indoor application for the longer battery life.

CLOCK OFF COLOR 005 VIDEO ENVELOP BRIGHT 050 % GAIN 1 25.0 dB

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Tenth menu covers the required functions for HORN and Key Beep Setting.

CONFIG : Evaluation mode can be selected to DAC,AWSor DGS.As per selection, menu 6 will turns to DAC, AWS or DGS setting. This selection can change only if current active DAC/AWS/DGS is selected to OFF. HORN : Horn can be switched ON or OFF using HORN UP/DN keys. When HORN is switched ON, then it gives out an audible alarm each time MONITOR is triggered. BEEP : Key press will be acknowledge by sound if BEEP is selected to ON. Otherwise it will not give beep sound when set to OFF. PRF : Using PRF UP/DB keys HI or LO PRF can be selected.

In HI PRF is depends on current range selection. In Low mode is PRF is low which is useful when ghost echo pattern appears when testing low attenuate material.

CONFIG DAC HORN OFF BEEP ON PRF HI GAIN 1 25.0 dB

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Eleventh menu covers selection of measured parameter to be displayed on screen.

MEA PO1 :Measured value will be displayed on screen at Left most position below base line. It scrolls as per detail given below. OFF Display OFF SND PTH Sound path of Echo signal DEPTH Depth of Echo signal SURF D Surface dist. of Echo signal ECH HI% Percentage height of Echo signal DAC % Percentage height with respect to DAC curve. (When DAC is selected to ON) ERS VAL Equivalent Reflector Size of echo signal (When DGS is selected to ON) DGS CRV Display currently selected DGS curve size. DGS HDB dB diff between DGS curve and echo signal (When DGS is selected to ON)

Signal to be within GATE 1 and MEASURE is selected to ON in menu 7 then appropriate measured value will be displayed onscreen.

MEA PO2 : Measured value will be displayed on screen at Middle position below base line. It scrolls as per detail given in MEA PO1.

MEA PO3 : Measured value will be displayed on screen at Right side below base line. It scrolls as per detail given in MEA PO1.

MEA PO1 OFF MEA PO2 OFF MEA PO3 OFF

GAIN 1 25.0 dB

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5 Setting of time Keep key 1 press and switch ON Einstein-II DGS. After display of menu Parameter, release key 1 and again press key 1 so Time setting menu will be displayed. Now set required Time/Data by pressing UP/DN parameter key. Then press key 2 for to store/set current time to value set as per display. Press key 3 to exit without store/set current time. Factory Default Calibration set-up In Einstein-II DGS last calibration set-up remain store So when further Einstein-II DGS Starts it will start with last setting, But due to some reason if stored calibration is corrupted then it will starts with factory default calibration set-up. If any user want to recall factory default calibration set-up then press key 4, keep it press and Switch on Einstein-II DGS. After displaying menu parameter release key 4.

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6 Interface of Printer

Einstein-II DGS has direct printout facility of A-Scan pattern with full calibration set-up values. It can be printed out on conventional PC printer having a Serial Communication connector. So computer or special printer is not required. Printer should be IBM-PC compatible with serial port. Serial port setting is as below. Serial printer EPSON FX/LQ type recommended. (To set below setting in serial printer refer operating manual supplied with the printer).

Baud Rate 9600 Parity bit None Data Bits 8 Stop Bits 1

To print out trace pattern, follow the below given steps. > Connect Serial cable (supplied with Einstein-II DGS) between connector (19) of Einstein-II DGS and serial printer. > Switch ON Serial PC printer. > Switch ON Einstein-II DGS. > Get the required Trace pattern and freeze using Freeze key (3). > Using Menu key go to memory menu (4). > Using ACTION UP/DN key select “PRINT”. > Press ENTER UP/DN key to initiate printing.

For Interface with PC Using Serial port Refer Help.txt file supplied in Software CD.

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Einstein-II DGS

7 Power Supply Einstein-II DGS is powered by a Lithium-Ion battery pack ATB1, which is fitted in Einstein-II DGS using two screws. It electrically connects to Einstein-II DGS via two internal terminal contact points. With fully charged battery pack ATB 1, Einstein-II DGS can operate continuously for eight hours, under typical operating conditions. The battery pack ATB 1 can be charged when inside Einstein-II DGS by connecting Battery charger ATC 1 to the connector (18). Alternatively, the battery pack ATB 1 can be charged outside Einstein-II DGS which allows uninterrupted use of Einstein-II DGS using multiple battery packs. Battery Charging The battery Charger ATC 1 supplied with Einstein-II DGS is a special quick- charge charger. The charging time is just 5 to 6 hours. ATC 1 battery charger is suitable for use with mains supply from 100 to 240 volts AC/50 Hz. The LED on charger illuminates to indicate power on. When the battery voltage is low (discharge condition) the LED glows RED. When the battery is almost charged the LED turns to yellow. When the battery is full charged the LED glows green. The output voltage from the charger is 16.4 Volts DC. The charging current is constant at 2.0 Amps.

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8 Precaution > Avoid shock to the Einstein-II DGS and probes. > Wipe the couplant off the probe and Einstein-II DGS after use. > When battery pack is out-of Einstein-II DGS, keep battery contacts away from metal object > Never heat the battery pack ATB 1 nor throw into a fire.

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Einstein-II DGS

9 Specification of Einstein-II DGS

Test Range : 10 mm to 5 meter (0.500 in to 200 in) (in steel). In Hot Key mode it has 13 preset values. Fine mode adjustable in step of 1mm (0.2 in).

Velocity : 1000 met./sec to 9999 met./sec (0.0400 in/µs to 0.4000 in/µs). In Hot Key mode it has 7 preset values. Fine Mode adjustable in step of 1 met/sec (0.0001 in/µs).

Delay : Variable from 0 to 3000 mm (0 to 100 in). In Hot Key mode 5mm (0.2 in) . Fine mode adjustable in step of 0.5mm (0.02 in).

Gain : 100dB calibrated gain adjustable in 0.5, 1, 2, 6, 12 or 20 dB step.

Rejection : 0 to 100%FSH with LED indicator.

Rectification : Full-wave rectified with filtering.

Frequency : Broad Band amplifier 0.5 MHz. to 10MHz.

Test Modes : Pulse echo and Transmit/Receive.

Transmitter :Transmission pulse Negative spike with selectable high or low power.

Damping : Damping high/low is selectable.

Connectors : BNC and LEMO (Size 1) both are provided.

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Einstein-II DGS

Freeze/Peak Freeze : A-Scan freeze and Peak Freeze available. In Peak freeze it holds echo dynamic pattern which is useful for angle beam probing to locate peak signal.

Connectors : BNC and LEMO (Size 1) both are provided.

Monitor : Dual gate adjustable in 1% of Screen width with Positive/Negative Logic, Gate Expand modes.

Gate Expand : Expands Range to width of the gate.

A-Scan memory : 200 Trace Patterns can be stored (with Note/Detail),recalled, print or transferred to PC via RS-232 serial port.

Calibration Set-up : 50 different calibration set-ups can be Stored and Recalled.

Software : EinSoft DGS Interface software for transferring A-Scan from Einstein-II DGS to PC supplied. Printer Attachment : IBM compatible Printer having serial port can be directly attached to main unit for printing of stored A-Scan waveform with calibration data.

Display : High brightness Color TFT LCD Display. Display area 320 x 240 pixel (122 x 92 mm). Eleven different color scheme option.

Full Screen : By pressing Zoom key A-Scan can be displayed in Full Screen area.

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Reference A-Scan : Reference A-Scan pattern of standard test object can saved and recalled in the background for easy comparison during testing.

DAC : Dynamic DAC curve can be Digitally plotted (Smooth parabolic curve) on screen with –6dB and –14dB DAC curves.. DAC curve can be set as flaw monitor gate. Using minimum 2 to maximum 10 point DAC curve can be plotted. TCG : As per plotted DAC Time Corrected Gain activated so it brings echo signal to same height irrespective of depth.

AWS : Built-in Software for evaluation of defect in accordance with AWS standards

DGS : Defect size evaluation 18 predefined probe settings and one custom probe set-up per memory location. Defect size is directly displayed in ERS value. (Equivalent Reflector Size).

Digital Readout : Thickness/Depth can be displayed in digital readout when using a normal probe and Sound path, Surface Distance and Depth are directly displayed when angle probe is in use. Measurement point can be selected to be Peak or Flank. Echo height, ERS value, dB diff of DGS curve to signal height, Echo height WRP to DAC can be measured.

Measurement Unit : Metric or British unit of measurement is selectable.

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Einstein-II DGS

Video Output : Composite video signal (PAL) output for connection to a TV.

PRF : High or low PRF is selectable.

Update Rate : 50 Hz.

Power : Lithium-Ion Battery pack 14.4VDC, 4AH, gives 8 hours continuous operation from fully charged battery.

Charger : Input voltage 100 to 240 VAC. Charge status indicators provided.

Temperature : 0 to 55º C.

Size : 152 x 255 x 70 mm (HxWxD).

Weight : 2.3 kg. with Battery.

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Einstein-II DGS

10 Menu Tree First Menu ZERO RANGE VEL DELAY Second Menu GATE 1 START END LEVEL OFF PLOGIC NLOGIC DAC DAC –6 DAC –14 EXPAND Third Menu GATE 2 START END LEVEL OFF PLOGIC NLOGIC Forth Menu MEMORY MEM NO ACTION NOTE SET-UP RECALL ENTER SAVE DELETE A SCAN RECALL DETAIL

MODSONIC

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Einstein-II DGS

DELETE PRINT SEND SAVE Fifth Menu REJECT POWER DAMPING MODE LOW LOW SINGLE HI HI DUAL Sixth Menu (1) DAC STRT G1 POINT PRESS OFF ENTER DRAW ON ON 6/14 TCG ON AWS OFF START G1 SET START G1 SET REF MEASURE START G1 IL ---- AF---- RATING Sixth Menu (2) DGS STRT G1 DGS-REF TL-CORR OFF SELECT ON Seventh Menu MEASURE X-OFF ANGLE THICK

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OFF ON Eighth Menu TRIGGER HUD SET REF UNIT FLANK SND PTH OFF INCHES PEAK DEPTH ON METRIC SURF D ECH HI% DAC % ERS VAL DGS CRV DGS HDB ALL Ninth Menu CLOCK COLOR VIDEO BRIGHT OFF ENVELOP ON FILLED Tenth Menu CONFIG HORN BEEP PRF DAC OFF OFF HI DGS ON ON LOW Eleventh Menu MEA PO1 MEA PO2 MEA PO3 OFF OFF OFF SND PTH SND PTH SND PTH

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Einstein-II DGS

DEPTH DEPTH DEPTH SURF D SURF D SURF D ECH HT% ECH HT% ECH HT% DAC % DAC % DAC % ERS VAL ERS VAL ERS VAL DGS CRV DGS CRV DGS CRV DGS HDB DGS HDB DGS HDB

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Einstein-II DGS

All possible care has been taken in the preparation of this operation manual. If you find any errors or would like to make suggestions for improvement to this operation manual,

then please write to:

MODSONIC INSTRUMENTS MFG. CO. (P) LTD. Plot No.33, Phase III, GIDC Industrial Estate, Naroda, Ahmedabad – 382 330 INDIA.

Tel.:- +91 (079) 2281 1217, 2281 3131, 2284 1294 Fax.:- +91 (079) 2282 0012. E-mail: modsonic@modsonic.com Web site: www.modsonic.com

MODSONIC reserves the rights to make changes without notice.

OP22 (1)

MODSONIC