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© 2017 by Proceq SA   

       

12

© 2017 by Proceq SA   

       

13

5.4. Basic Measurement – Waveform Display

Select “Basic
Measurements”

Start the measurement

Select “Waveform”

Adjust as required
(See below)

Cancel to return to
standard display

Waveform Controls

Y < > 

Vertical zoom

X < > 

Horizontal zoom

t   - + 

Manual trigger adjustment

 Stop/Start

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.

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.

Select
“Basic Measurements”

Select parameter setting 
“pulse velocity”

Enter the pulse velocity

Start the measurement

The display shows:
- Transmission time
- Measured path length
- Received signal level

Stop the measurement
(Not necessary in burst mode)

Save the result or:
Adjust the gain settings.
(See Chapter 3) or:
Start a new measurement

Summary of Contents for Pundit Lab

Page 1: ...Operating Instructions Pundit Lab Pundit Lab Ultrasonic Instrument Made in Switzerland more than 50 years of know how you can measure Made in Switzerland...

Page 2: ...owing icons are used in conjunction with all important safety notes used in this man ual i Note This symbol indicates important information 1 5 Correct Usage The instrument is only to be used for its...

Page 3: ...de 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...

Page 4: ...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 Ultrasoni...

Page 5: ...rrangement Three transducer arrangements are commonly used Wherever possible use the direct arrangement as this ensures the maximum signal transmis sion between the transducers The semi direct arrange...

Page 6: ...viewed An asterisk beside the pulse velocity or the distance indicates that this is the parameter that was calculated 1st row Measurement e g 4 of 16 Time stamp 2nd row Measurement ID Temperature 3rd...

Page 7: ...Start the measurement Note 3 The waveform is not saved only the transmission time 5 5 Basic Measurement Path Length If the pulse velocity of the material under test is known it is possible to measure...

Page 8: ...s 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 ca...

Page 9: ...sions for the test object Tx Frequency kHz Pulse velocity 3500 m s Pulse velocity 4000 m s Pulse velocity 4500 m s Minimum Lateral Dimensions of Test Object 24 146 mm 167 mm 188 mm 54 65 mm 74 mm 83 m...

Page 10: ...ore details 5 Zero the instrument as described in the Pundit Lab manual chapter 2 1 Performing measurements with the 250 kHz shear wave transducers Typical echo signal obtained with an experimental se...

Page 11: ...325 40 024 Cable with BNC plug L 30m 100ft 710 10 031 Ultrasonic couplant 250 mL bottle 325 40 048 Shear wave couplant 710 10 028 Calibration rod 25 s for Pundit 710 10 029 Calibration rod 100 s for...

Page 12: ...it has been found its details will be displayed on screen Click on the Finish button to establish the connection 9 2 Viewing the Data The data stored on your Pundit will be displayed on the screen An...

Page 13: ...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...

Page 14: ...elete 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...

Page 15: ...cking on the time and amplitude scale zoom buttons for fine adjustment Click and drag the blue line to adjust the trigger point manually i Note In this example the signal amplitude is very low Use hig...

Page 16: ...y 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 combine...

Page 17: ...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 Unit...

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