Tru-Sonic Manual New

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TRU-SONIC Operating Manual

INSTRUMENT FROM VIEW

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INSTRUMENT BACKSIDE VIEW

CONNECTOR DESCRIPTION

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Key Function

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Switching the unit on and off

Step Size for gain setting

Freezing and storage the screen display

Recording measured value, saving data

Select the function group

Select the function

Changing the operation level

Recording measured valued, saving data or clear back to min. setting

Increasing gain

Decreasing gain

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LED

Symbol Description

A Gate alarm R Function reject is active D Function dual is active

Initial Start-Up Power Supply The TRU-SONIC can be operated with an external power supply through AC/DC adaptor or with built-in Lithium-Ion battery pack. You can connect the TRU-SONIC to the main power supply if the instrument battery pack less the batteries power. Operating Use Main Power Supply Operating Use Main Power Supply The power supply unit is delivery with a 3-poles AC/DC charger Connect the TRU-SONIC to the main socket-outlet using the AC/DC power charger. The plug receptacle is at the top left of the TRU-SONIC Plus the AC/DC power supply to main power supply ( 110 or 220 VAC). The LED light on the charger will turn red into green. Then Push the AC/Dc power supply plug into the plug receptacle unit until it snaps into place with a clear audible click. (If the LED light not turns red into green, don’t plug it.) Operating Use Lithium Battery Pack

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The battery pack is situated at the instrument back. The battery two side built-in sliding guide Line and locked with screw. The Lithium pack also can put on the instrument charge or remove charge without instrument. The battery pack installed a DC charge receptacle connector same as instrument. See following picture shoed how to remove and install the battery pack. Battery power indicator The instrument screen right bottom side showed symbol of battery power. If the battery-pack power less than 20%, the instrument will show “Low Battery”. The instrument still can use approx. 20 min. when “Low Battery” alarm appear. The user need to switch off the unit and plug it to the main power supply or charge the battery.

Charging The Batteries You can charge the Lithium-Ion Battery either direct in the instrument or by means of an external charge from charger. Internal Charging Requirement - Lithium battery pack, our P/N - Power supply/charger unit, P/N

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If a battery is located in the instrument, the charging process is start automatically when you connect the plug-in power supply unit. You can carry out ultrasonic inspection and charge a battery at the same time. The charging time is approx. 10 hours with a simultaneous ultrasonic inspection. If the instrument is not been used for ultrasonic inspectors, the charging time is approx. 8 hours. This charging time applies to ambient temperatures from 25-30 degree C, Please take into consideration that the battery pack are not charged to their full capacity at higher temperatures. The LED display on the plug-in power supply unit indicates the status of the charging process. First plug the power supply to the main power ( 220 VAC or 110 VAC ), the LED on the charger will turn red into green. Then plug the power supply plug direct to the instrument receipt socket or battery charge socket. When battery fully charged, the power supply charger LED indicator will turn red into green. External Charging Lithium-Ion batteries can be charged by means of an external charged. The Lithium battery installed a power receipt socket same as instrument. Use the same way as we charged by the previous way.. Connecting UT Probes The prepare of TRU-SONIC for operation, you have to connected a probe to it. Any brand probe can be use for the TRU-SONIC, provided the appropriate cable is available and the operating frequency is within an adequate range. The TRU-SONIC is available with the probe cable connectors Lemo 1. The probe is connected to the socket at top right on the instrument casing. Both connector socket are equally suitable ( connected in parallel) for connecting probes equipped with only one ultrasonic element (ultrasonic transducer) so that it does not matter which one of the two sockets is used.

When connected dual-element (TR) probe (having one transmitter element and one receiver element), or two probes (of which one is transmitting and the other one receiving), attention should be paid to connecting the transmitter element to the right-hand sockets (transmitter, marked with black circle at the rear of the instrument case) and the receiver element to the left-hand socket (receiver, marked with red circle). Attention: If this is not taken into account, the consequence would be a mismatching which may lead to considerable power losses or even to echo waveform distortions.

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Starting the TRU-SONIC Switching On TRU-SONIC

To start the TRU-SONIC, press the switch on Key The start display of the Tru-Sonic appear a flash bar with instrument logo, here you will see also the current software version of the instrument.

The system carry out a self-check and then switches over to stand-by mode. The setting of all function values and the basic setting are same as before switching-on the instrument. Reset If any functions can not be operated after a warm start, or if you want to reset the instrument to the basic setup, then you should carry out a cold start by simultaneously pressing the

and Key – the instrument will reset to the basic setup and clean all memory file

and key – the instrument will reset to the basic setup and keep all memory file

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Switch off the keypad Bi-Bi sound

After press turn on TRU-SONIC, press again will turn off keypad sound Principles of Operation Operator’s controls

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LED A: Gate alarm R: Rejection on D: Dual on Screen Display The TRU-SONIC had a digital screen display of A-scan in normal mode Note:” The screen display always shows the gain and the adjusted dB step value.

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Tru-sonic Display Sub-Menu Guide

First press GATE Second press GATE First press SET Second press SET

into BASE into a GATE into b GATE into DATE into COLOR into PULSE

RANGE

0250mm

a START

0050mm

b START

0150mm

HORN

OFF

GROUND

DAMP

100Ω

TRIG

S

a WIDTH

0100mm

b WIDTH

0050mm

BRIGHT

HIGH

WORD

POWER

400V

MTL VEL

5920m/s

a THRESH

88.0%

b THRESH

25.0%

UNIT

mm

ECHO

DUAL

D-DELY

0000mm

a LOGIC

POS

b LOGIC

POS

DATE

11-28-06

GRID

REF-dB

+00dB

P-DELY

0.00us

ab GATE

OFF

b GATE

OFF

TIME

15：28

SOLID

OFF

PRF-MOD

100Hz

Tru-sonic Display Sub-Menu Guide

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AND

into PK MEM into SAVE into RECALL into RECV into TRIG into CAL into DAC

PK MEM

OFF

NO. 000

PUSH 1

NO. 000

PUSH 1

REJECT

00%

ANGLE

00.0°

MEA FP

PEAK

DAC 3C

OFF

ENVLOP

OFF

FILE NAM

0000

LOAD

PUSH 1

FREQU

0.5-5M

X-VALUE

10.0mm

S-REF 1

50mm

DAC 4C

OFF

SHADOW

OFF

FILE TYP

A-SCAN

TRANSIT

PUSH 1

RF-MODE

OFF

THICKNE

000mm

S-REF 2

50mm

AWS

OFF

B-SCAN

OFF

DATE

11-26-05

FILE NAM

0000

AGB 50%

OFF

DIAMET

10.0mm

a START

0050mm

AVG

OFF

T-SCAN

OFF

TIME

13：48

FILE DEL

PUSH 1

FINE G

00 34.6℃

b START

0150mm

RESET

PUSH 1

Functions on the display

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The means of the 8 function group key are displayed at the bottom of the screen. The currently selected function group is display on left screen.

You can configure the four positions of the measurement line for set and measured values as required. Example of a measurement line

Ha = amplitude height Gate A(%)

Sa = sound path Gate A

Ra=

Da=

Ala=

Hb = Amplitude height Gate B (%)

Sb = Sound path Gate B

Sab=

Dab=

F = status indicator TOF = Flank

P= peak in gate

Important Basic Setting

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Selecting Display Unit

In the function group, press key, press unit display unit right < key,

use left side ^ key, change the unit display mm or inch.

Setting the date

In the function group, press key, press unit display date < key, use

left side ^ key, change the unit display date

Setting the time

In the function group, press key, press unit display time < key, use

left side ^ key, change the unit display time

Selecting the color scheme ( normally, don’t need change it )

OVERVIEW OF THE FUNCTION

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The functions of the TRU-SONIC are combined to form function groups of three operating levels The function, operated via left 3 keys, enable to quickly and direct set the gain.

- Press the key to select the function showed left side.

- Press the key to increasing the setting

- Press the key to decreasing the setting

Setting the Gain

The gain control function is always directly available from left up key.

Press select a certain incrementation for setting the gain. , dB setting choice from 1,2,6,12,20 dB 5 steps corase setting.

Press To increasing or decreasing the dB set increasing/decreasing steps.

For the fine gain control, you can press receiver key , press key on right of

FINE G. use key select the Fine G setting step. FINE G setting step can set 0.1 dB increasing/decreasing steps.

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Adjusting the Display Range ( Function Group BASE )

The function group BASE enable you to make the basic adjustment of the screen display range. The display on the screen must be adjusted for the material to be tested.( function MTLVEL) and for the probe used (function for P-DELAY). Note: In order to accurately adjust the material velocity and the probe delay, please read the section Calibration of TRU-SONIC.

RANGE

0250mm

TRIG

S

MTL VEL

5920m/s

D-DELY

0000mm

P-DELY

0.00us

RANGE (Display Range)

You can adjust the display range if your measurement in range.

The coarse adjustment from 25, 50, 100, 200, 400, 800, 1600, 3200, 6000 mm. Press the RANGE right one time change from 25 change to 50, press again from 50 change to 100,etc.

Any time when press the left side key, the range display will return back to the 25 mm, user can press range set another display range .

The fine adjustment can press BASE Key , press RANGE right key, then press key select the Fine range display.

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MTVEL (Sound Velocity)

Use MTVEL to set sound velocity within the test object. You can use sound velocity between 1000-9999m/s

Coarse adjustment 5920 m/s or 3330 m/s. Direct press MTVEL right key to select 5920 m/s or 3340 m/s

- Fine adjustment 1000-15000m/s in step of 1m/s through key

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D-DELAY ( Display Starting Point)

This function allow you to shift the complete screen display and consequently also the display zero. If the display should for example start from the surface of

the test object, the value in D-DELAY must be set to 0.

Press D-DELAY right key to select D-DELAY, Use key adjustment. Adjust the value for the display starting point.

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P-DELAY (Probe Delay)

Every probe has a delay between the transducer element and coupling face. This means that the initial pulse must first pass through this delay line before the

sound wave can enter the test object. You can compensate for this influence of the delay line in the function P-DELAY

If the value for P-DELAY is not known, read the section calibration in order to determine this value

- Select the function P-DELAY

- Adjust the value for the probe delay use key to the right value

- Probe delay measurement, see attached example

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Adjusting the Pulser ( Function group PULS )

DAMPING (Probe Matching) This function serves for matching the probe. You can use it to adjust the damping of the probe’s oscillating circuit and consequently change the height, width and resolution of the echo display - Low ( 200Ω), this setting has a lower damping effect and produces higher and broader echoes - High (100Ω), this setting reduces the echo height but mostly also produces narrow echoes with higher resolution

- Select the function DAMP,

- Set the required value by means of key to the right value.

POWER (Intensity)

Use the function POWER to set the pulser voltage. You can choose between two setting ( 400V and 200V). The setting high

(400V) is recommended for all

Inspections in which maximum sensitivity is important, e.g. for the detection of small flaws. Choose the setting low (200V) for

broadband probes or if narrow echoes are required (better latest resolution).

- Select the function POWER.

- Use the key to the right value

DUAL (Pulser-Receiver Separation)

DAMP

100Ω

POWER

400V

DUAL

REF-dB

+00dB

PRF-MOD

100Hz

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You can use the function DUAL to activate the pulser receiver separation.

- Select the function DUAL.


PRF-MOD ( Pulse Repetition Frequency)

- The pulse repetition frequency indicates the number of times an initial pulse is triggered per second. You can determine

whether you need the highest possible PRF value, or whether you are satisfied with a low value. You 5 step selection

(100Hz,250Hz,500Hz and 1000Hz)

- The larger you work piece, the smaller PRF value are needed in order avoid phantom echoes. In the case of the smaller

PRF value, however, the A-scan update rate becomes lower, for this reason, high value are required if a work piece

should be scanned fast. The best way to determine the suitable PRF value is by experimenting; start from the highest

step and reduce the value until there are no such phantom echoes.

- Select the function PRF-MOD


DAMP

100Ω

POWER

400V

DUAL

REF-dB

+00dB

PRF-MOD

100Hz

Single element contact mode Angle beam mode Dual Crystal Contact mode Dual probe through-transmission mode

If the Dual crystal or dual through-transmission probe is select, the LED D (dual) is on

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Adjusting the receiver (function group RECV)

You will find all function for the adjustment of the pulser in the function group RECV.

- If required, go to the first operating level

- Select the function group by Press RECV key

REJECT

The function REJECT allows you to suppress unwanted echo indications, for example structural noise from your test object.

The % screen height setting indicates the minimum height that the echoes should attain in order for them to be displayed on the

screen at all. The reject setting cannot be higher than the lowest threshold setting ( min 1%) of any gate.

You should handle this function with great caution, as it may of course happen that you suppress echoes from flaws as well. Many

test specifications expressly forbid using the reject function.

- Select the function REJECT


The LED R is therefore light with active when REJECT function on

FREQU (Frequency Range)

In this function, you can adjust the operating frequency according to the frequency of your probe.

REJECT

00%

FREQU

0.5-5M

RF-MODE

OFF

AGB 50%

OFF

FINE G

00

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You have a choose between 2 frequency range

- Narrow Band from 0.5-4.0 MHz

- Board Band from 4-15 MHz

- Select the function FREQU


RF-MODE ( RF=Radio Frequency)

You can select the rectification mode of the echo pulses according to your application in the function RF-MODE. When RF mode on,

it only applies to the display range up to 50 mm ( steel)

- Select the function RF-MODE

- Use the key to turn RF on or off

AGB 80% ( Automatically increasing the gain raise the echo amplitude to 80% high )

- Move Gate cross the echo

- Select the function AGB 80%

- Use the key to turn on the AGB 80% on, The echo amplitude will automatic increase up to 80% full screen

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FINE G ( Fine adjustment of gain)

This function serves for the fine adjustment of the current gain value. The fine adjustment is possible 0.1db per step.

- - Select the function FINE G

- Use the key to increase or decrease 0.1 dB per step

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Setting The Gates (Function Group aGAT and bGAT)

Display of Gates

All functions for setting the (dual) gate are arranged in the function group aGAT and bGAT.

- If required, go to the first operating level

- Select the function group aGAT or bGAT

TASKS OF THE GATES

It monitors the range of the test object where you expect to detect a flaw. If an echo exceeds or falls bellow the

gate, an alarm signal is output via the LED A.

The gate A and B are independent of one another. Gate A can also have the function of an echo-start gate.

The gate choose the echo for the digital time-of-flight or amplitude measurement. The measured value is indicated

in the measurement line.

Error alarms can be triggered under certain circumstances. These are caused by intermediate conditions in

instrument operation occurring when the

instrument is used. i.e. when function parameters are changed. Possible alarms occurring during instrument

operation (setting of function) are to be ignored.

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To make the assignment easier, the gate are displayed in different colors. You can not vary the colors of gates

because they are fixed as following

Gate A – yellow

Gate B - Green

aSTART/bSTART (Starting point of the gates)

You can fix the starting point of the gates A or B within the adjustment range of 0-5999 mm.

- - Select the function aSTART or bSTART

- Use the key to set right value

aWIDTH/bWIDTH (WIDTH of the gates)

You can change the width of the gates A or B within the adjustment range of 0-5999 mm.

- - Select the function aWIDTH or bWIDTH


aTHRSH/bTHRSH (Response and Measurement Threshold of the gates)

You can change the threshold value of the gates A or B within the adjustment range of 10%-90% screen height for

triggering the LED alarm if this value is exceeded or not reached, depending on the setting of the aLOGIC/bLOGIC

function. In the RF-MODE, the threshold can be additionally set from -90% to -10%.

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- - Select the function aTHRSH or bTHRSH


aLOGIC/bLOGIC (Evaluation Logic of the gates)

This function allows you to choose the method for triggering the gate alarm. The alarm is output to the LED A on

the front panel of the TRU-SONIC. There are three setting options available

off- Evaluation logic off

The alarm (LED A) is on if the preset response threshold of the gate is exceeded within the displayed range

Pos-Coincidence

The alarm (LED A) is on if the preset response threshold of the gate is not reached within the displayed range

Neg-Anticoincidence

The alarm (LED A) is on if the preset response threshold of the gate is not reached within the displayed range

The alarm and measurement function of the gates is only active within the display range.

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Setting “TRIG

- ANGLE=probe angle - X-VALUE = Probe front side to index point distance. ( contact probe = 10 , angle beam probe need measurement by V1 bock )

- MTL THK = material Thickness - * DIAMET ( not available now ) - 34.6 ( instrument inside temperature monitor )

Setting DAC

This group function incl. set - 3 line DAC curve - 4 line DAC curve - AWS code inspection - AVG curve setting

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DAC CURVE SETTING

Prepare a 6 hole test block with different depth. Example drawing showed. 1. Calibrate the probe delay and set screen 175 mm 2. Press DAC enter the DAC submanual 3. move high-light cursor to DAC 3C and press up key turn on the DAC 3C on 4. Put probe on the test block and target to the first hole. Adjust the gain amplitude into 80%. Press * freeze key set point 1 5. Move the probe to second hole. Adjust the gate , press * set point 2 6. Move the probe to third hole. Adjust the gate , press * set point 3 7. Move the probe to no. 4 hole, adjust the gate, press * set point 4 8. Move the probe to no. 5 hole, adjust the gate, press * set point 5 9. Move the probe to no. 6 hole, adjust the gate, press * set point 6 10. press enter key completed the setting and show the setting curve 11. move high cursor set RL and EL dB. Set RL and EL dB 12. Move cursor to 6-point DAC, press up key set on, the DAC curve will display

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Function Group PK.m

This function incl. - PK MEM - ENVLOP - SHADOW - B-SCAN ( This function is optional accessories, not incl. in the standard package. To do the B-scan, you need encoder - Scanner. Scanner and connection cable price ref. to the optional accessories ) - T-SCAN -

PK MEM Press PK MEM=on can hold the background echo cross the gate

Put probe on 20 mm thick block to get back echo cross the gate

Press PK MEM set it on, when take off the probe, the background echo display and hold on the screen.

The MEM background echo will good for reference during the inspection

ENVOLOP Press ENVOLOP=on can hold the all the echoes cross the gate

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Press envlop set it on, when move the probe, the all echo cross the gate will hold and display on the screen.

SHADOW Press SHADOW=on. The initial and background echo will change color into solid display


Press SHADOW set it on, the echo color will change into shadow display type

When move the probe. The show still hold on the display for reference

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Time B-Scan

1. Select the probes which already calibrated the probe delay. If it’s a new probe, please follow the probe delay measurement procedure calibrate the probe delay

2. Press BASE key, enter probe delay ( measurement by Peak method ) 3. Press CAL set MEAS=Peak 4. Press PULS, set dual=contact 5. Press BASE, press set the screen display range to 50 mm 6. Put the probe on the step bock, make sure the gate can cover the min. and max. range 7. adjust the gain to get 75% amplitude from thick step as following 8. check the min step 20 mm back echo, see Sa=20.0 mm 9. Move the probe on the 20 mm step. Press PK MEM key, press T-SCAN right arrow key set T- scan on and start time-Bcan

Move the probe from 20 mm to 10/5 mm step. After completed of the T-scan, press enter key and cal (1) key save the screen to the instrument

10. Press COPY recall key, press CAL (1) key recall the T-Bscan data 11. This Time-Bscan map showed scan the step block from 20 mm-10mm-5 mm

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CALIBRATION:

Tru-Sonic Probe Zero Auto-Calibration

1. Select the probe type ( contact or angle beam ), frequency, range and velocity

Contact Probe

Use V2 block 20 mm thick. Due to the probe near field resolution, please use second echo calibrate.

The second echo should be 40 mm.

Or, to use V1 block 100 mm

Angle beam probe

Target the probe to V1 R100 mm curve

2. Move gate cross and cover the max. response echo

3. press CAL enter CAL mode, Press MEAS Arrow key key, now the Means/Peak will show double arrow cursor. This mean, the instrument already enter calibration procedure.

4. Press S-REF1 arrow key, now the cursor will move to S-REF1.

5. Use up and down key set 100 mm ( if use V1 block )

6. Press enter key again. Now the Tru-Sonic will auto-calibrate and the sound path will display 100.0

7. Press BASE key, Now the P-delay showed 2.77 us.

8. Press Freeze key, press enter key again, Save this probe calibrate P-delay.

Example

Contact Probe Auto-Calibrate Procedure

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1. Get 4 MHz, 12 mm, 0 degree contact probe and V1 block . Press BASE key set RANGE into125 mm 2. Press MTLVEL RIGHT ARROW KEY, MOVE CURSOR move cursor to MTLVEL. Press arrow key again set MTLVEL 5920 m/s. 3. Press PULS key enter PULS mode

- Set Probe Type- contact 4. Press RECE key enter RECE mode, set FREQU=0.5-5.MHz 5. Press TRIG key, enter TRIG mode

- Set angle 0 degree ( if now showed angel=70, press arrow key SET key select the angle=0.0 degree ) 6. Plug probe cable to Tru-Sonic 7. Put couplant on V2, put probe on the block to get response echo.

8. Adjust the gain until second echo raise to 80% height.

9. Press Gate, move Gate A across the second echo and cover it 10. Press CAL key, enter CAL mode, press MEAS right arrow key, the MEAS/Peak showed double arrow.

11. Press S-REF1 right arrow key, the cursor move to S-REF-1. use up/down key adjust the thickness into 100 mm 12. press enter key again. Now the probe sound path will show 100.0 mm.

13. Press BASE key. The P-delay= mm. 14. Now the probe delay already auto-calibrate.

15. Press FREEZE key, Press ENTER key enter SAVE mode. Press CAL/1 key Save the setting

16. Next time when use the same probe, press COPY key, enter recall mod, LOAD right arrow key , move cursor to Load, press CAL/1 key load the previous calibrate setting.

Angle Beam Probe Auto-Calibrate Procedure

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1. Get 4 MHz, 8x9 mm, 60 degree contact probe and V2 block . Press BASE key set RANGE into 100 mm 2. Press MTLVEL RIGHT ARROW KEY, MOVE CURSOR move cursor to MTLVEL. Press arrow key again set MTLVEL 5920 m/s. 3. Press PULS key enter PULS mode

Set Probe Type-angle 4. Press RECE key enter RECE mode, set FREQU=0.5-5.MHz 5. Press TRIG key, enter TRIG mode

Set angle 60 degree ( if now showed angel=70, press arrow key select the angle=60.0 degree ) 6. Plug probe cable to Tru-Sonic 7. Put couplant on V2, put probe on the block to get response echo.

8. Adjust the gain until second echo raise to 80% height.

9. Press Gate, move Gate A across the second echo and cover it 10. Press CAL key, enter CAL mode, press MEAS right arrow key, the MEAS/Peak showed double arrow.

11. Press S-REF1 right arrow key, the cursor move to S-REF-1. use up/down key adjust the sound path into 100 mm 12. press enter key again. Now the probe sound path will show 100.0 mm.

13. Press BASE key. The P-delay= mm. 14. Now the probe delay already auto-calibrate.

15. Press FREEZE key, Press ENTER key enter SAVE mode. Press CAL/1 key Save the setting 16. Next time when use the same probe, press COPY key, enter recall mod, LOAD right arrow key , move cursor to Load, press CAL/1 key load the previous calibrate setting.

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4 MHz Contact Probe Manual Delay Measurement Select one 4 MHz contact probe connected to the cable and plug it to the TRU-SONIC Get 1 4 step thickness block ( 20, 10, 5 , 2.5mm ) Press TRU-SONIC ON/OFF switch, turn on the TRU-SONIC. Press pulser key enter pulser sub-manual. Press DUAL right key, Move cursor to DUAL, use +/- key change the display to contact probe symbol. Use Peak in Gate

1. Press BASE key enter BASE setting 2. Press RANGE key, set the display range = 25 mm 3. Press MTLVEL right key, set the velocity = 5920 m/s 4. Put the probe on the 20 mm block step 5. Press CAL set the MEAS=Peak 6. Press PULS, set DUAL=angle beam 7. Adjust the gain until echo display 80% full screen] 8. Press GATE, move gate across the display echo 9. Check the screen bottom Da=22.0 ( This show thickness is 22 mm not 20 mm.) 10. Adjust the probe delay until Da=20.0 11. The P-DEAY= 0.37 us

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Use Flank

1. Press BASE key enter BASE setting 2. Press RANGE key, set the display range = 25 mm 3. Press MTLVEL right key, set the velocity = 5920 m/s 4. Put the probe on the 20 mm block step 5. Press CAL set the MEAS=Flank 6. Adjust the gain until echo display 80% full screen] 7. Press GATE, move gate across the display echo 8. Move the gate aTHREAD down to 7%. ( gate must acroos the echo first wave raise line ) 9. Check the screen bottom Da=21.2 ( This show thickness is 21.2 mm not 20 mm.) 10. Adjust the probe delay until Da=20.0 11. The P-DEAY= 0.22us

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Note: Use “Peak” or “Flank” have different measurement value display. The probe delay is different. This will case inspection tolerance. Most of time, PEAK use for flaw detection and FLANK use for thickness measurement.

4 MHz, 8x9 mm, Angle Beam Probe Delay Measurement

Select one 4 MHz, 8x9 mm, 70 degree probe connected to the cable and plug it to the TRU-SONIC Press TRU-SONIC ON/OFF switch, turn on the TRU-SONIC Put probe on V1 steel test block, tarket the probe to the 100 mm curve

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1. Press CAL key, select the MEAS=Peak 2. Press BASE key, set range 200 mm 3. Set TRIG=S 4. Set MTL VEL=3353 m/s 5. Press PULS,set Dual=angle beam 6. Set gain until echo rise 80% full screen 7. Press GATE. Move the gate b across the echo and adjust the width and thresh to 50% 8. Press TRIG set angle =70 degree, s-VALE=12.0 mm, MTL THK = 100 mm 9. Press BASE back BASE setting 10. PressP-DELY right arrow key, press increasing key increasing P DELY until Sa=100.0 11. Move the gate across the echo 12. check Sa=100.0. Now the P-DELY for this probe is 3.87 us

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4 MHz Dual Crystal Contact Probe Delay Measurement

Select one 4 MHz,12mm, 0 degree dualcrystal probe connected to the cable and plug it to the TRU-SONIC Press TRU-SONIC ON/OFF switch, turn on the TRU-SONIC

1. Press CAL key, select the MEAS= PEAK 2. Press BASE key, set range 25 mm 3. Set TRIG=S 4. Set MTL VEL=5920 m/s 5. Press PULS,set Dual=angle beam 6. Put probe on 20 mm step block 7. Set gain until echo rise 80% full screen 8. Press TRIG set angle = 0 degree, s-VALE=0.0 mm, MTL THK =20.0 mm 9. Press GATE. Move the gate across the echo and adjust the width and thresh to 50% 10. Press BASE back BASE setting 11. Move the gate across the echo 12. PressP-DELY right arrow key, press increasing key increasing P DELY until Sa=20.0 13. check Sa=20.0. Now the P-DELY for this probe is 3.39 us

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It’s very important to calibrate the probes delay and record it. If you didn’t calibrate the probes delay and entry to the parameter. The inspection result will generate big tolerance. Each probes have different probe dealy. Single Probe Thickness measurement Select one 4 MHz,12mm, 0 degree dual crystal probe connected to the cable and plug it to the TRU-SONIC Press TRU-SONIC ON/OFF switch, turn on the TRU-SONIC

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1. Press CAL key, select the MEAS= PEAK 2. Press BASE key, set range 25 mm 3. Set TRIG=S 4. Set MTL VEL=5920 m/s 5. Press PULS,set Dual=angle beam 6. Put probe on 20 mm step block 7. Set gain until echo rise 80% full screen 8. Press TRIG set angle = 0 degree, s-VALE=0.0 mm, MTL THK =20.0 mm 9. Press GATE. Move the gate across the echo and adjust the width and thresh to 50% 10. Press BASE back BASE setting 11. Move the gate across the echo 12. PressP-DELY right arrow key, press increasing key increasing P DELY until Sa=20.0 13. check Sa=20.0. Now the P-DELY for this probe is 3.39 us 14. Move the probe to 10 mm step, move gate across back echo, the Sa=10.0 and Da=10.0 15. Move the probe to 10 mm step, move gate across back echo, the Sa=5.0 and Da5.0

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Note: When use Flank, the probe delay calibrate is different. Dual Probe Thinckness measurement Select one 4 MHz,12mm, 0 degree dual crystal probe connected to the cable and plug it to the TRU-SONIC Press TRU-SONIC ON/OFF switch, turn on the TRU-SONIC

16. Press CAL key, select the MEAS= PEAK 17. Press BASE key, set range 25 mm 18. Set TRIG=S 19. Set MTL VEL=5920 m/s 20. Press PULS,set Dual=angle beam 21. Put probe on 20 mm step block 22. Set gain until echo rise 80% full screen 23. Press TRIG set angle = 0 degree, s-VALE=0.0 mm, MTL THK =20.0 mm 24. Press GATE. Move the gate across the echo and adjust the width and thresh to 50% 25. Press BASE back BASE setting 26. Move the gate across the echo 27. PressP-DELY right arrow key, press increasing key increasing P DELY until Sa=20.0 28. check Sa=20.0. Now the P-DELY for this probe is 3.39 us

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29. Move the probe to 10 mm step, move gate across back echo, the Sa=10.0 and Da=10.0 30. Move the probe to 10 mm step, move gate across back echo, the Sa=5.0 and Da5.0

Note: When use Flank, the probe delay calibrate is different.

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Echo to Echo Measurement

Select one 4 MHz contact probe connected to the cable and plug it to the TRU-SONIC Get 1 4 step thickness block ( 20, 10, 5 , 2.5mm ) Press TRU-SONIC ON/OFF switch, turn on the TRU-SONIC. Press pulser key enter pulser sub-manual. Press DUAL right key, Move cursor to DUAL, use +/- key change the display to contact probe symbol.

1. Press BASE key enter BASE setting 2. Press RANGE key, set the display range = 25 mm 3. Press MTLVEL right key, set the velocity = 5920 m/s 4. Put the probe on the 20 mm block step 5. Press CAL set the MEAS=Peak 6. Press PULS, set DUAL=angle beam 7. Adjust the gain until echo display 80% full screen] 8. Press GATE, move gate across the display echo 9. Check the screen bottom Da=22.0 ( This show thickness is 22 mm not 20 mm.) 10. Adjust the probe delay until Da=20.0 11. The P-DEAY= 0.37 us 12. Press BASE set the range=50 mm 13. Press GATE, move a Gate to cross first back echo 14. Press GATE again, set bGATE=on. Move bGATE cross second echo 15. Press GATE set abGATE=on 16. The screen bottom display Sab=20.00, Dab=20.00

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If use “FLANK”, The probe delay calibrate same as before. Just take care set the aGATE and bGATE down cross echo wave first rise line. This will give you

more precision measurement.

Dual contact probe echo-echo do the same way.

Documents

Tru-Sonic Manual New