Operating Instructions Pundit Lab (Plus)
Contents
1. Waveform Controls Y lt s Vertical zoom X lt gt Horizontal zoom t Manual trigger adjustment Stop Start Select Basic Measurements Start the measurement Select Waveform Adjust as required See below Cancel to return to standard display Note 1 Rx gain may need reducing for vertical Zoom to have a noticeable effect Note 2 Once adjusted trigger point does not reset automatically unless a new measurement is started in the menu Start the measurement Note 3 The waveform is not saved only the transmission time 2014 by Proceg SA 12 5 5 Basic Measurement Path Length If the pulse velocity of the material under test is known it is possible to measure the path length between the transducers The procedure is exactly the same as for measuring pulse velocity ex cept that in this case the known pulse velocity is entered k LETETTE TT Select Drocedq l a ca Basic Measurements 5 0 058 m gt 3466 m s PESE Select parameter setting cara pulse velocity gt 3610m s Enter the pulse velocity 0 000 m Start the measurement 3610 m s The display shows Transmission time Measured path length Received signal level 0 075 m a Stop the measurement Not necessary in burst mode ka 500 P 5 6 p S gt Save Save the result or Adjust the gain settings Da USA TAAA gt sian str See Chapter 3 or St2. 250V 1000x 1 6 R 83 1 E ae t 25 4ps s 0 200m distance indicates that this is the parameter v d635m s TSN met exp_BAH that was calculated 1st row Measurement e g 4 of 16 Time stamp 2nd row Measurement ID Temperature 3rd row Frequency Voltage Gain Correction factor Rebound value GONREB only Ath row Transmission time Distance 5th row Pulse velocity Compressive strength Conversion curve 2014 by Proceg SA 10 5 3 Basic Measurement Pulse Velocity In order to measure the pulse velocity it is necessary to measure the path length between the two transducers Select Basic Measurements Select parameter setting path length Enter the path length Start the measurement The display shows 25 p 6 J S Transmission time pE Measured pulse velocity OORS Stop Received signal level Stop the measurement Not necessary in burst mode Save the result or Adjust the gain settings Z 25 6pys HJ 100 eed S a See Chapter 3 or z ae Start a new measurement Best results are obtained when the received signal level is around 75 Use the automatic gain and voltage settings See Chapter 3 for optimized performance 2014 by Proceg SA 11 5 4 Basic Measurement Waveform Display 0 200 m Ea O m s gt start Start 25 6us WME EMO E 43 9pa 20ps y x T Y2 M HENE t HHH HHHH HH BIST EET o Ya
3. Date Time gt 06 08 2010 E 06 08 2010 a 10 31 11 Info Every selected measurement will be adjusted by the same amount of time cne _ The time will be adjusted for the selected series only Please note the Pundit Lab does not have an internal clock so the date and time displayed for downloaded data is the time at which it was downloaded In Data Logging mode it is the date and time at which the measurement was made 2014 by Proceq SA 24 9 4 Exporting Data Pundit Link allows you to export selected objects or the entire project for use in third party pro grams Click on the measurement object you wish to export It will be highlighted as shown Proceg Punditiinds Urmand Me Dibe b Tins mez Detarce Crack Det Comection Factor F AYO 127 AN Siu owm ooe 1 00 i4 z S200 LIAN TE 1 00 ts re ARADIO LLET AN 25 ps I eT H x RARDDINZIAM Geet fice aia i im n I Loe ac Pre en OSE ia Jon Click on the Export as CSV file s icon The data for this measurement object is exported as a Microsoft Office Excel comma separated file or files The export op tions may be chosen in the following window Export to Microsoft Excel CS Comma separated values file x r 1 Select target 2 Select data Preview One File only y h all Tw ces FPES td EE pa ae A Selection only PPT Each object to a separate file k ka ed ee b
4. measurement Path length measurement Uniformity assessment Surface velocity measurement Crack depth measurement Estimating the dynamic elastic modulus of samples with the shear wave transducers Pundit Lab only Estimating compressive strength using pulse velocity alone or in combi nation with a rebound hammer Transducer arrangement Three transducer arrangements are commonly used Direct Semi direct indirect or surface Wherever possible use the direct arrangement as this ensures the maximum signal transmis sion between the transducers The semi direct arrangement is less sensitive than the direct but more sensitive than the indirect arrangement The path length is the distance between the centers of each transducer The indirect method is particularly useful for determining crack depth surface quality or in the case when only one surface is accessible 5 1 Preparation Basic preparations are common to each application The distance path length between the transducers should be measured as accurately as possible It is very important to ensure ad equate acoustic coupling of the transducers to the surface under test A thin layer of couplant should be applied to the transducer and the test surface In some cases it may be necessary to prepare the surface by smoothing it For compound measurements and uniformity testing a test grid should be drawn out on the surface Rebars affect the ultrasonic measurements as the signal
5. will travel faster through the rebar than through the concrete The location of rebars should be determined using a rebar locator such as Proceq s Profoscope and ultrasonic tests should be positioned so as to avoid them BS 1881 Part 203 gives information on the effect of rebars on the expected results The standard measuring procedure is e Apply the couplant e Position the transducers e Perform the measurement e Reposition the transducers compound measurements only e Save the result 2014 by Procegq SA 5 2 Basic Measurements Basic measurements consist of a single measurement without the need to reposition the transducers There are two basic measurements depending on which parameter is known either the path length or the pulse velocity Set path Continuous Burst length transmission Set pulse Stop Start velocity Measurement Saving Measurements At the end of a measurement the test result can be saved Save into a file defined by an ID number ID Do not save and return to the previous screen Review List Pundit Lab only From the main menu clicking on the system information key See getting started brings up a sub menu Select this to key to display the system information Select this key to go the review list which allows previous measurements to be viewed 4 16 19 04 2011 15 10 31 Dp l d u Woas i ID 24 24 7 C w An asterisk beside the pulse velocity or the SOOkHz
6. 500 1 100 ys Calibration See2 10s S O Rx Gain Pundit Lab 1x 10x 100x AUTO Pundit Lab 1x 2x 5x 10x 20x 50x 100x 200x 500x 1000x AUTO Units Pundit Lab ft m Pundit Lab ft m MPa N mm2 psi kg cm2 Correction factor pd 007 1 Date and time Pundit Set time stamp Lab Compressive strength Curves defined in PunditLink Enter a rebound value curve Pundit Lab for SONREB curves Automatic Gain and Voltage Setting The excitation voltage and the receiver gain can both be set to automatic In this mode the Pundit Lab finds the optimum combination of the two parameters for a stable measurement 2014 by Proceg SA Rx Gain 200x 500x 1000x This feature is available in Pundit Lab only and replaces the need for an external amplifier 825 40 059 when using long cables or exponential transducers When such high gain stages are selected it is highly recommended to use manual triggering with the waveform display Pulse Width The pulse width is automatically set to the optimum value for the selected transducer frequency and typically requires no adjustment For certain applications it may however be adjusted if desired Refer to ASTM D 2845 Standard Test Method for Laboratory Determination of Pulse Velocities and Ultrasonic Elastic Constants of Rock It also allows non standard transducers up to 500 kHz to be used with Pundit Lab Pulse width p in microseconds us to be entered here is calculate
7. Conversion Curves ies The new curve will now appear in the drop down list and may be loaded onto the Pundit Lab 10 Pundit Lab Remote Control Interface The Pundit Lab interface is completely open for those users who do not wish to use the PunditLink software but instead wish to integrate Pundit Lab into the software they use in the laboratory such as LabVIEW The remote control interface document providing complete instructions is available in the downloads section on the Proceq website www proceq com 2014 by Proceq SA 31 Procegq Europe Ringstrasse 2 CH 8603 Schwerzenbach Phone 41 43 355 38 00 Fax 41 43 355 38 12 info europe proceq com Proceg UK Ltd Bedford i lab Priory Business Park Stannard Way Bedford MK44 3RZ United Kingdom Phone 44 12 3483 4515 info uk proceq com Proceq USA Inc 117 Corporation Drive Aliquippa PA 15001 Phone 1 724 512 0330 Fax 1 724 512 0331 info usa proceq com Proceg Asia Pte Ltd 12 New Industrial Road 02 02A Morningstar Centre Singapore 536202 Phone 65 6382 3966 Fax 65 6382 3307 info asia proceq com Proceq Rus LLC Ul Optikov 4 korp 2 lit A Office 410 197374 St Petersburg Russia Phone Fax 7 812 448 35 00 info russia proceq com Proceq Middle East P O Box 8365 SAIF Zone Sharjah United Arab Emirates Phone 971 6 557 8505 Fax 971 6 557 8606 info middleeast proceq com Proceq SAO Ltd South American Operations Alameda Jau 1905
8. E Auto scale Velocity 0 m s Number of events i Limited number of readings Amplitude Readings per event Rx probe gain Time frame m Advanced settings Start Stop Start Stop Next All transmission parameters may be controlled here Click on the Advanced settings but ton to adjust the following parameters Pse mom 9 3 ys Correcson factor 1 00 Length Unit bal Compressive Strength Unit ba Conversion Ourve poy EC r Retour Value GORED Please note that the pulse width is by default set to an optimum value for the transducer frequency selected Time frame Can be set between 0 1ms and a maximum of 10ms please note 10 ms corresponds to a measurement of approximately 40m through concrete Typical measurements will be less than 0 5ms This setting sets the time scale for the waveform display as can be seen below e g Recording time set to 0 2 ms Sonal curve Setting 150 Pulse length RI Probe bequency BAHE Pins anpii ne Flic prote gain lc Cab ast ofc Ow Debate att Bunde Lab Cera number PLO Reo albaani wiii 1 0 2 Hangame nee at Conant anpii 2014 by Proceq SA 27 e g Recording time set to 0 5 ms Signa curve Parasia 4 00 lenght PE m Psi Oy re Se 7 saanen Adaa i N han j ao oleme verse LAI 3 AA fy H LH yj vay AN a af fh emai 8 Comment al fac al ik OE ls ee ee Tire Es e g Recording time s
9. H nm exp_BhAH nal Schmidt This is for the user to define but it is always displayed in the Note The rebound value may be a Q value SilverSchmidt or an R value Origi review list as R for rebound value 2014 by Proceq SA 14 5 7 Compound Measurement Surface Velocity Select Compound Measurements Select Surface Velocity 0 075 m Select parameter setting b Measure and enter the distance b Transducers in first position Start t1 is measured Stable reading indicated by a tick t2 is measured Stable reading is 25 6 Us Ti indicated by a tick and result screen 48 1 us is displayed The display shows p td 7J t2 Surface velocity Save the result or press start to repeat the measurement 2014 by Proceq SA 15 5 8 Compound Measurement Perpendicular Crack Depth proceq 2014 by Proceg SA 0 150 m Select Compound Measurements Select Crack Depth Select parameter setting b Measure and enter the distance b Transducers in first position Start t1 is measured Stable reading indicated by a tick t2 is measured Stable reading is indicated by a tick and result screen is displayed The display shows ce t1 7J fa 12 Crack Depth Save the result or press start to repeat the measurement 16 Note The crack depth measurement uses the method described
10. Safety and usage precautions This manual contains important information on the safety use and maintenance of the Pundit Lab Read through the manual carefully before the first use of the instrument Keep the manual in a safe place for future reference 1 2 Liability and warranty Proceq s General Terms and Conditions of Sale and Delivery apply in all cases Warranty and liability claims arising from personal injury and damage to property cannot be upheld if they are due to one or more of the following causes e Failure to use the instrument in accordance with its designated use as described in this manual e Incorrect performance check for operation and maintenance of the instrument and its components e Failure to adhere to the sections of the manual dealing with the performance check operation and maintenance of the instrument and its components e Unauthorized structural modifications to the instrument and its components e Serious damage resulting from the effects of foreign bodies accidents vandalism and force majeure All information contained in this documentation is presented in good faith and believed to be correct Proceq SA makes no warranties and excludes all liability as to the completeness and or accuracy of the information 1 3 Safety instructions The instrument is not allowed to be operated by children or anyone under the influence of alcohol drugs or pharmaceutical preparations Anyone who is not familia
11. _ _ Copy to clipboard ma Click on the Export as graphic icon to open the following window which allows the various export options to be chosen PIE Expert as graphic m xj L What do you want to export 2 Sefect target 3 Select data Preview ISESE Hote ony Eam ouma Tay a e is ee TETT l has i ro TS 7 Selection only enn Lach object to d separate file lt a um pa g jam R Headers ard detai ts wai q Mm Copy to clipboard zpen Ceon J _concet_ In both cases the preview window shows the effects of the current output selection Finish by clicking on export to select the file location name the file and in the case of a graphi cal output to set the output graphic format png omp or jpg 2014 by Proceq SA 25 9 5 Deleting and restoring Data The menu item Edit Delete allows you to delete one or more selected series from the down loaded data Note This does not delete data from the Pundit only data in the current l project The menu item Edit Select all allows the user to select all series in the project for deletion exporting etc Restoring original downloaded data Select the menu item File Restore all original data to restore the data to the original format as it was downloaded This is a useful feature if you have been manipulating the data but wish to go back to the raw data once again A warning will be given to say that the ori
12. addition to the imperial or metric units 2014 by Procegq SA Date and Time Pundit Lab only AEN Used to provide measurements with a time eS gy 12 21 Senne Use the left and right keys to move between 19 O04 e 2011 settings Use the up and down keys to adjust the settings Press enter to save or cancel to return without saving 4 Viewing the Waveform While carrying out the measurements described in the following chapter it is possible to view the received waveform Pundit Lab offers three possibilities to look at the waveform Rx Waveform Oscilloscope Connect an oscilloscope to the connector on the rear panel A typical waveform will look like this Trigger pulse f AAAA il ee laf iN i ii if iat WADANA NW NW Both the trigger pulse and the received waveform are displayed Pundit Link PC The waveform may also be viewed on a PC or Laptop connected via the USB port Please refer to the Pundit Link operating instructions for details chapter 9 Signal curve 100 60 40 48 6us 2 20 z Gmi 2 0 a pr amp 20 m 10 20 30 40 50 60 70 30 90 100 110 120 130 140 150 160 170 180 190 Timej us 60 0 On the instrument The waveform may be directly viewed on the instrument See next chapter for operating de tails 2014 by Proceg SA 5 Measuring with Pundit Lab The Pundit Lab can be used for several applications including the following Pulse velocity
13. art a new measurement 2014 by Proceq SA 13 5 6 Basic Measurement Compressive Strength Pundit Lab only Prior to carrying out this measurement a conversion curve must be created in PunditLink and uploaded to the instrument Up to five curves may be stored on the instrument Select the appropriate curve and set the desired compressive strength unit See chapter 3 System Set tings Carry out a pulse velocity measurement as described above 5 3 42 3 As While the measurement is being carried out or H E when the measurement has completed clicking on the up or down keys switches between pulse 93 MPa 3 gt velocity and compressive strength indication SONREB Method This method for measuring compressive strength combines the ultrasonic measurement with a rebound hammer measurement The format of the curve is Compressive Strength f aV S Where a b and c are constants V is the ultrasonic pulse velocity in m s S is the rebound value Many examples of SONREB curves can be found in the literature In the settings menu Chapter 3 the rebound value should be entered before carrying out the measurement In this case the rebound value entered is saved along with the rest of the mea surement data afi6 19 04 2044 15 1ace4 m A rebound value of 83 1 has been entered here ID 21 24 7 C w w and saved with the measurement data SOGkKHz 250047 1 00 16 Reis te23 4ps o7t 200m vod635ma 6 DS
14. cj 54 Jardim Paulista Sao Paulo Brasil Cep 01420 007 Phone 55 11 3083 38 89 info southamerica proceq com Procegq China Unit B 19th Floor Five Continent International Mansion No 807 Zhao Jia Bang Road Shanghai 200032 China Phone 86 21 6317 7479 Fax 86 21 6317 5015 info china proceg com www proceq com Subject to change without notice Copyright 2014 by Proceq SA Schwerzenbach pI OCE Part number 820 326 01 E Made in Switzerland
15. d from the formula p 1 000 2 f where f transducer frequency in kHz If anon standard value is set manually it is indicated AA S4kHz 25 1 ps by an asterisk PRE 20 0ps 1 00 EF EE Averaging Time Signal A number of measurements are made and the resulting transmission times are averaged Time averaging provides the highest resolution of 0 1 us Signal averaging provides greater stability for longer path measurements e g several iwieem metres In this case a number of measurements are made and the waveforms are averaged to determine the transmission time The resolution in this mode is 0 5 us Continuous Burst Transmission S amp S Continuous transmission continues transmitting until the Stop button is pressed a Burst transmission sends out packets of pulses until a stable reading is obtained then stops automatically Correction Factor Pulse velocity measurements are affected by several factors These are well described in BS 1881 Part 203 and it is recommended that the user refers to this document Two key factors are the moisture content of the concrete and the temperature The table below shows the correction factor that should be keyed in based on the recommendations made in the above standard Temperature 10 C 30 C 60 C 40 C 0 C pose 4 C Units Pundit Lab only i Selecting units opens a second screen where 1G mM the user may select a compressive strength unit in
16. ection Ethernet settings Device IP address OP COM One 30 JV Stop search after first device has been Found Help Back Cancel Help 9 2 Viewing the Data Marne Qube fa Time Miearerement Type Velocity Timed Timed Dame track Depth Cemection Factor Temperature Compresse Strength Comveraon Curve Rebound Value EDTA eS _ Drect deist l 234 in HAGN Drect idea mi B z ALAT 706 Dreri del soll Hs ius boom foe i Te sa MP nh BE Do 68us em iim 260 Per HOUSES MPa a Bays him heim 100 32 MG MPa oly Be EEE e An Id number identifies the measurement object e The Name column allows the user to assign a name for the measurement object e The Date and time For Pundit Lab this is the time when the data is downloaded on to the PC or in Live view mode the date and time when the measurement was made For Pundit Lab it is the date and time when the measurement was made e The Measurement type indicates either direct or one of the compound measurement types e The Velocity column displays the measured pulse velocity or the setting for path length measurements e Time 1 and Time 2 displays the measured transmission time or times for compound measurements e The Distance column shows the measured distance or the setting for pulse velocity measurements e The Crack Depth shows the measured crack depth e The Correc
17. ectrical shock the transducers must be con nected before switching on and disconnected only after switching off Basic Measurement Ed System Settings proceq Z Compound Measurement ss pundit lab Information Power ON Press and hold the lower right hand key for 3 seconds The main menu and the type Pundit Lab or Pundit Lab is displayed Clicking on the Information soft key brings up important device information Pc S N PLO1 000 0000 Serial number Battery status or AO 7 PL8O 000 0000 Hardware version USB connection O 9 9 Firmware version Power Management Power OFF When operating on battery power the instrument goes into standby mode after 5 minutes of inactivity After 30 minutes it shuts down completely When powered by the USB connection the display shuts down after 1 hour of inactivity Press the lower right hand key Power ON OFF Cancel to recover from standby mode To power off press and hold the lower right hand key for 3 seconds 2014 by Proceg SA Zeroing the Pundit Lab The Pundit Lab should be zeroed using the calibration rod ona regular basis and in particular if the transducer frequency is changed or if the cables are changed The expected calibration value us is marked on the calibration rod Couple the transducers to the calibration rod by applying couplant to the transducers and both ends of the rod and pressing firmly together as shown Note When zeroing the exponential t
18. et to 5ms Saynal curse 100 eng PENS Probe Pegi aby E eia gan ix Pinds ab Puo8 000 0000 Anplitucn Setting the trigger point manually Pundit Link gives the user the option to set the trigger point manually See the example below Trigger point capture automatically amp 100 b 111 4us Amplitude m N 100 4 0 10 22 3 4 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 Time ps 2014 by Proceq SA 28 Zoom in by clicking on the time and amplitude scale zoom buttons for fine adjustment A 400 0 111 4ys Amplitude 400 75 80 85 30 95 100 105 110 115 120 125 130 135 140 145 Time fus Click and drag the blue line to adjust the trigger point manually 400 0 Amplitude 400 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 Time Tus e Note In this example the signal amplitude is very low Use higher output voltage l settings and gain settings for better results Data Logging The Data Logging mode allows the user to program a test sequence Data Logging an jo jo po ONE are Interval between measurements Number of events 100 Number of events until the test is completed Readings per event 1 Readings per event how many measurements are made in each interval 2014 by Proceq SA 29 Live mode The live mode allows the user to test with or without recording the data Li
19. f this occurs Do the measurement in continuous mode Change voltage pulse or gain Use the waveform display to determine optimal voltage and gain settings 11 0 Signal too weak Invalid measurement The condition t1 gt t2 2 during crack measurement is not ful filled 11 0 Memory full 37 0 Pundit Lab only Invalid system time Back up battery for the real time clock is probably empty Support Concept Proceq is committed to providing a complete support service for this instrument by means of our global service and support facilities It is recommended that the user register the product on www proceg com to obtain the latest on available updates and other valuable information Standard Warranty and Extended Warranty The standard warranty covers the electronic portion of the instrument for 24 months and the mechanical portion of the instrument for 6 months An extended warranty for one two or three years for the electronic portion of the instrument may be purchased up to 90 days of date of purchase 2014 by Proceg SA 21 9 Pundit Link 9 1 Starting Pundit Link Locate the file Punditlink Setup exe on your computer or on the CD and click on it Follow the instructions you see on the screen me E Make sure that the Launch USB Driver in Completing the Punditlink Setup stall tick is selected Wizard Setup has finished installing Punditlink on your computer The Th e U S B d river i n st al I
20. ginal data is about to be restored Confirm to restore Note Any names or comments that have been added to series will be lost Deleting data stored on the Pundit Select the menu item Device Delete all measurements object on Pundit to delete all data stored on the Pundit A warning will be given to say that all of the data is about to be deleted Confirm to delete Note This will delete every measurement series It is not possible to delete l individual series 9 6 Further Functions The following menu items are available via the icons at the top of the screen PQUpgrade icon Allows you to upgrade your firmware via the internet or from local files A Open project icon Allows you to open a previously saved pql project l Save project icon Allows you to save the current project D Ik Print icon Allows you to print out the project You may select in the printer dialog if you want to print out all of the data or selected readings only 2014 by Proceq SA 26 9 7 Live View Pundit Lab allows you to remotely control the Pundit Lab and to view the waveform directly on the PC screen Click on the Live view icon If you are not already connected to the Pundit the hir connection sequence will be initiated See 9 1 The Live view window will be displayed Settings Data Logging Live Mode Waveform Settings Distance 0 069 m Interval hh mm ss Continuous
21. in BS 1881 Part 203 3 For good results the crack must be perpendicular to the surface and free of water or debris The crack must be sufficiently wide to prevent the wave from propagating around it Rebars close to the crack will also affect the result If these conditions are not met the crack depth will appear much smaller than it is 5 9 Minimum Dimensions Minimum dimensions are recommended for accurate test results Minimum path length 100 mm for concrete with maximum aggregate size of 20 mm or less 150 mm for concrete with maximum aggregate size between 20 mm and 40 mm Minimum lateral dimensions of the sample This is dependent on the transmission wavelength and the pulse velocity The minimum path length should be equal to or greater than the transmission wavelength or a severe reduction in the pulse velocity may be detected The following table taken from BS 1881 Part 203 shows the minimum recommended lateral dimensions for the test object Tx Frequency kHz Pulse velocity Pulse velocity Pulse velocity or m s 4000 m s 4500 m s Minimum Lateral Dimensions of Test Object ee E ER 54 65mm Amm Bm 5 10 Transducer Selection Guide Generally lower frequencies allow more depth of penetration Higher frequencies allow better resolution in the measurements The inhomogeneities in concrete influence the propagation of an ultrasound pulse This influ ence can be significantly reduced by choosing the frequency f such that the
22. ndit Lab 4 Select the 250 kHz transducer from the list of supported transducers See Pundit Lab manual chapter 3 for more details 5 Zero the instrument as described in the Pundit Lab manual chapter 2 1 F P m a procen f he lad B ae TE Performing measurements with the 250 kHz shear wave transducers Pipilih rysmi pi bee Da tdia Typical echo signal obtained with an experimental setup The first echo arrives at approximately 25 4 us and corresponds to the weak longitudinal wave After 50 6 us the much stronger shear wave echo appears in the signal 2014 by Proceq SA 18 5 12 Transducer Holder Accessory i This accessory is particularly useful for compound measurements See chapter 5 a a The individual transducer holders may be detached and used separately helping to reduce the physical strain when carrying out extensive measurements 6 Technical Specifications Transit time Measurement eeseses O 0 1 9999 us Auto ranging Display 79 x21 mm passive matrix OLED Optimized energizing pulse 125 V 250 V 350 V 500 V AUTO Receiver Pundit Lab Pundit Lab Bandwidth 20 kHz 500 kHz Non volatile gt 500 measured values Regional Settings Metric and imperial units supported Power Supply Battery 4 x AA batteries gt 20 hours continuous use 5v lt 500mA via USB Charger Sv lt 500mA directly via USB cable Environmental co
23. nditions lt 95 RH non condensing IP Classification IP42 2014 by Proceq SA 7 Part Numbers and Accessories 7 1 Units 326 10 001 Pundit Lab consisting of Display unit 2 transducers 654kHz 2 BNC cables 1 5 m couplant calibration rod battery charger with USB cable 4x AA LR6 batteries data carrier with software documentation and carrying case 326 20 001 Pundit Lab consisting of Display unit 2 transducers 54kHz 2 BNC cables 1 5 m couplant calibration rod battery charger with USB cable 4x AA LR6 batteries data carrier with software documentation and carrying case 7 2 transducers 32540131 Transducer 54 kHz Two required for operation 32540141 Transducer 150 kHz Two required for operation 7 3 Parts and Accessories 326 80 211 Pundit lab carrying bag 325 40 059 Amplifier for long cables gt 10m and exponential transducer not required for Pundit Lab Cable with BNC plug L 1 5m 5ft Cable with 2x BNC plug L 3 6m 12ft 32540022 Cable with BNC plug L 10m 33ft Cable with BNC plug L 30m 100ft 710 10 031 Ultrasonic couplant 250 mL bottle 32601033 Demo Block PunditLab gt S 32540150 Transducer Holder complete o Z o Z o ooo 2014 by Proceq SA 20 8 Maintenance and Support Error Screen If this screen appears during measurements it indicates that no stable signal has been received I
24. pundit lab Operating Instructions Pundit Lab Pundit Lab Ultrasonic Instrument proce Table of Contents 1 Safety and Liability 3 2 Getting started 4 3 System Settings 6 4 Viewing the Waveform 8 5 Measuring with Pundit Lab 9 Beli Preparation 9 5 2 Basic Measurements 10 id Basic Measurement Pulse Velocity 11 5 4 Basic Measurement Waveform Display 12 5 0 Basic Measurement Path Length 13 5 6 Basic Measurement Compressive Strength Pundit Lab only 14 5 7 Compound Measurement Surface Velocity 15 5 8 Compound Measurement Perpendicular Crack Depth 16 5 9 Minimum Dimensions 17 5 10 Transducer Selection Guide 17 5 11 250 kHz Shear Wave Transducers 18 5 12 Transducer Holder Accessory 19 6 Technical Specifications 19 T Part Numbers and Accessories 20 7 1 Units 20 1 2 Transducers 20 7 3 Parts and Accessories 20 8 Maintenance and Support 21 9 Pundit Link 22 9 1 Starting Pundit Lin 22 9 2 Viewing the Data 23 9 3 Adjusting the Settings 24 9 4 Exporting Data 25 9 5 Deleting and restoring Data 26 9 6 Further Functions 26 9 7 Live View 27 9 8 Conversion Curves 30 10 Pundit Lab Remote Control Interface 31 Standards and Guidelines Pundit Lab complies with the following standards EN 12504 4 Europe ASTM C597 02 North America BS 1881 Part 203 UK IS01920 7 2004 International 1S13311 India CECS21 China CE 2014 by Proceq SA 1 Safety and Liability 1 1
25. r with this manual must be supervised when using the instrument 1 4 Labelling The following icons are used in conjunction with all important safety notes used in this man ual Note l This symbol indicates important information 1 5 Correct Usage e The instrument is only to be used for its designated purpose as describe herein e Replace faulty components only with original replacement parts from Proceq e Accessories should only be installed or connected to the instrument if they are expressly authorized by Proceq If other accessories are installed or connected to the instrument then Proceq will accept no liability and the product guarantee is forfeit 2014 by Proceq SA 2 Getting started Rear Panel Connectors for Oscilloscope USB PC Power Supply The Pundit Lab can be powered by batteries by the mains or by the USB connection to a PC Front Panel The soft keys are context sensitive The display Mag icon shows the active function proceq Li am The lower right hand key is for Power ON OFF a and also to Cancel a setting and return to the previous menu The navigation key is for scrolling through menus and for setting variable parameters Transducer Connection Connect the transducers to the front of the display unit using the BNC cables If cables of dif ferent lengths are used the longer cable should be connected to the transmitter Note To avoid the possibility of el
26. ransducers the dedicated calibration rod 325 40 174 should be used 2014 by Proceg SA Select System Settings See chapter 3 for more info Check Tx Rx matches transducer frequency Pulse width requires no adjustment Correction factor set to 1 0 Select Calibration If necessary select to enter the transit time as marked on the calibration rod Variable parameter set as follows Up down keys fine adjustment Left right keys coarse adjustment Center key enters the value and returns to the previous menu Cancel key cancels the input and returns to the previous menu Press Start to begin the calibration sequence The final display shows the expected transit time and below it the measured transit time This should match the value on the calibration rod 3 System Settings Select System Settings roce pund lab Set i Transducer frequency 54kHz 25 4 ps F pulse width Calibration setting 3ps Averaging time signal Or scroll to next screen Set Excitation voltage Receiver gain Units metric imperial Pundit Lab only Compressive strength unit Correction factor Pundit Lab only j L SonReb_cas 89 8 Set Date and time Compressive strength curve Re bound value for SONREB method Parameter Presets Click on soft key to Variable Set with scroll through navigation key see 2 1 Tx Rx Frequency kHz 24 37 54 82 150 200 220 250 Ye
27. s a vi rtu al com p O rt application may be launched by selecting the installed icons Click Finish to exit Setup which is needed to communicate with the JV Launch USB Driver install P u n d it I Launch Punditlink Double click on the Pundit Link Icon on your desktop or start the Pundit Link via the start menu The Pundit link starts with a blank list Application settings The menu item File Application settings allows the user to select the language and the date and time format to be used Connecting to a Pundit Connect the Pundit to a USB port then select one of the following options 2014 by Proceq SA 22 To download all data from the Pundit To begin the Live view mode for remote controlled measurements and waveform Ki analysis In both cases the following window will be displayed Choose communication type x Select the communication type Leave the settings as default or if you know the COM port you can enter it manually Serial Choose the interface with which the device is connected to the PC Note Only communication types supported by the device are displayed USB devices might be shown as serial Serial port settings IV Find device automatically Scan ports or enter COM port number 6 Click on Next gt When a Pundit has been found its details will be displayed on screen Click on the Finish button to establish the conn
28. tion Factor shows the setting of the correction factor e For Pundit Lab only The Compressive Strength shows the calculated value based on the chosen Conversion Curve e For Pundit Lab only The Rebound Value is the value entered GONREB method only 2014 by Proceg SA 23 Click on the double arrow icon in the Id column to see more details a Ss f03 03 201011 27 AM Surface 2979 mis ktd Settings Pulse length 9 3 us Probe frequency 54 kHz Pulse amplitude auto 350 Rx probe gain auto 1x Calib time offset 3 9 us Device name Pundit Lab Serial number PLO 000 0033 Software version 0 9 9 Hardware index AQ Comment Add Note Click on Add to attach a comment to the object 9 3 Adjusting the Settings Each of the settings that were used in the Pundit at the time of the measurement series can be adjusted subsequently in Pundit Link For compressive strength measurements made with Pundit Lab the conversion curve and rebound value can be adjusted subsequently This can be done either by right clicking directly on the item in the appropriate column or by clicking on the blue setting item in the detailed view of a measurement object In each case a drop down selection box will appear with the choice of setting Adjusting the date and time Right click in the Date amp Time column Adjust time x M Current time stamp of objects Time stamp after adjustment Date Time
29. ve Mode In continuous mode the Pundit Lab fe em eines begins measuring as soon as Start is pressed and continues until Stop is Limited number of readings 1 pressed If a limited number of readings only is required this may also be set Pressing Next logs the data and allows anew measurement to begin Waveform settings Clicking Auto Scale adjusts the zoom parameters of Waveform Settings 3 the waveform display to an optimum setting W Auto scale 9 8 Conversion Curves Pundit Lab allows compressive strength estimates to be made using pulse velocity measure ments or a combination of pulse velocity and rebound hammer measurements To do this it is necessary to create a conversion curve and upload this onto the instrument Conversion curves are very much specific to the concrete under test and there are many ex amples in the literature Pundit Lab allows either polynomial curves or exponential curves to be programmed and in the case of a combined ultrasonic rebound value measurement a curve based on the SONREB SONic REBound method may be entered Select the menu item Conversion Curves 2014 by Proceg SA 30 OF version Cunnee Here you can view existing Curves stored on your computer copy an existing curve for modification or Locally stored conversion curves exp_i Create new curve Enter the curve parameters and click on Create
30. wave length A is at least twice as large as the aggregate size A is given by N cH where c is the pulse velocity Speed of sound in concrete The table below shows typical ag gregate sizes and the corresponding maximum recommended frequency respectively c m s 3500 4000 eee 16 32 size fmax kHz 219 109 55 250 125 es 281 141 70 2014 by Proceq SA 17 5 11 250 kHz Shear Wave Transducers When measurements with the 250 kHz shear wave transducers are performed it is crucial to use the special shear wave coupling paste otherwise shear waves cannot be properly trans mitted into the object under test The shear wave coupling paste is a non toxic water soluble organic substance of very high viscosity Furthermore we highly recommend using Pundit Link s waveform display in order to manually locate the onset of the shear wave echo Since the latter is always preceded by a relatively weak longitudinal echo See Figure below the transit time determined by Pundit Lab would correspond to the longitudinal instead of the shear wave Required steps before measurements can be performed 1 Puta small amount of shear wave coupling gel on the transducers Firmly press the transducers on either side of the 25 us calibration rod Part No 710 10 028 Make sure that the coupling gel is properly distributed and that no air is trapped between the transducer and the calibration rod 3 Connect the transducers to Pu
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