Proceq Pundit Lab Operating Instructions Manual

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Operating Instructions

Pundit Lab / Pundit Lab

Ultrasonic Instrument

... more than 50 years of

know-how you can measure!

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Summary of Contents for Proceq Pundit Lab

Page 1 Operating Instructions Operating Instructions Pundit Lab / Pundit Lab Pundit Lab / Pundit Lab Ultrasonic Instrument Ultrasonic Instrument ... more than 50 years of ... more than 50 years of ... more than 50 years of ... more than 50 years of...
Page 2 Standards and Guidelines Standards and Guidelines Pundit Lab complies with the following standards: EN 12504-4 (Europe), ASTM C597-02 (North Pundit Lab complies with the following standards: EN 12504-4 (Europe), ASTM C597-02 (North America), BS 1881 Part 203 (UK), ISO1920-7:2004 (Internatio America), BS 1881 Part 203 (UK), ISO1920-7:2004 (Internatio nal), IS13311 (India), CECS21 (China)
Page 3 Standards and Guidelines Standards and Guidelines Pundit Lab complies with the following standards: EN 12504-4 (Europe), ASTM C597-02 (North Pundit Lab complies with the following standards: EN 12504-4 (Europe), ASTM C597-02 (North America), BS 1881 Part 203 (UK), ISO1920-7:2004 (Internatio America), BS 1881 Part 203 (UK), ISO1920-7:2004 (Internatio nal), IS13311 (India), CECS21 (China)
Page 4 Proceq SA makes no warranties and excludes all liability as to the completeness and/ correct. Proceq SA makes no warranties and excludes all liability as to the completeness and/ or accuracy of the information.
Page 5 Oscilloscope Batteries 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 icon shows the active function.
Page 6 Zeroing the Pundit Lab The Pundit Lab should be zeroed using the calibration rod on a regular basis and in particular if the transducer frequency is changed or if the cables are changed. The expected calibration value (µs) is marked on the calibration rod.
Page 7 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. © 2013 by Proceq SA...
Page 8 (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 (µs) to be entered here is calculated from the formula...
Page 9 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. Oscilloscope Connect an oscilloscope to the connector on the rear panel. A typical waveform will look like...
Page 10 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.
Page 11 Save into a ﬁle deﬁned by an ID number. 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.
Page 12 Adjust the gain settings. (See Chapter 3) or: 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. © 2013 by Proceq SA...
Page 13 Note 1: Rx gain may need reducing for vertical zoom to have a noticeable effect. Note 2: Once adjusted, trigger point does not reset automatical ly unless a new measurement is started in the menu “Start the measurement” Note 3: The waveform is not saved, only the transmission time. © 2013 by Proceq SA...
Page 14 - 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 © 2013 by Proceq SA...
Page 15 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.
Page 16 “t2” is measured. Stable reading is indicated by a tick and result screen is displayed. The display shows: - “t1” - “t2” - Surface velocity Save the result or press start to repeat the measurement. © 2013 by Proceq SA...
Page 17 “t2” is measured. Stable reading is indicated by a tick and result screen is displayed. The display shows: - “t1” - “t2” - Crack Depth Save the result or press start to repeat the measurement. © 2013 by Proceq SA...
Page 18 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.
Page 19 Connect the transducers to Pundit Lab. Select the 250 kHz transducer from the list of supported transducers (see Pundit Lab manual chapter 3 for more details). Zero the instrument as described in the Pundit Lab manual chapter 2.1.
Page 20 5v, <500mA via USB Charger 5v, <500mA directly via USB cable Mechanical Dimensions 172 x 55 x 220 mm Weight 1.3 kg (incl. batteries) Environmental conditions Operating temperature -10° to 60°C (0° to 140°F) Humidity <95% RH, non condensing © 2013 by Proceq SA...

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