Proceq Pundit PL-200, Pundit PL-250PE Operating Instructions Manual
Swiss Solutions since 1954
Design Patent Pending
®
Operating Instructions
© 2016 Proceq SA 2
Contents
1. Safety and Liability ..................................................... 3
1.1 General Information ...........................................................3
1.2 Liability ...............................................................................3
1.3 Safety Instructions ............................................................3
1.4 Correct Usage ...................................................................3
2. Technical Specifications .............................................. 4
3. Operation ...................................................................... 6
3.1 Getting Started ..................................................................6
3.2 Main Menu .........................................................................8
3.3 Pundit PL-200 ...................................................................8
3.4 Pundit PL-200PE .............................................................22
3.5 Pundit 250 Array ..............................................................31
4. Explorer Document Handling ..................................... 42
5. Ordering Information ................................................. 43
5.1 Units .................................................................................43
5.2 Transducers .....................................................................44
5.3 Pundit Array Transducer Parts and Accessories ...........44
5.5 Accessories .....................................................................44
6. Maintenance and Support ......................................... 45
6.1 Maintenance ....................................................................45
6.2 Support Concept .............................................................45
6.3 Warranty Information .......................................................45
6.4 Disposal ...........................................................................45
7. PL-Link Software ....................................................... 45
7.1 Starting PL-Link ...............................................................45
7.2 Viewing the Data ............................................................46
7.3 Adjusting the Settings .....................................................48
7.4 Analysis of B-scans .........................................................48
7.5 Exporting Data .................................................................49
7.6 Further Functions ............................................................49
7.7 Conversion Curves ..........................................................50
7.8 E-modulus Calculator .....................................................50
3 © 2016 Proceq SA
1. Safety and Liability
1.1 General Information
This manual contains important information on the safety, use and maintenance of the Pundit Touchscreen. 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
Our “General Terms and Conditions of Sales 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:
• Failure to use the instrument in accordance with its designated use as
described in this manual.
• Incorrect performance check for operation and maintenance of the instrument and its components.
• Failure to adhere to the sections of the manual dealing with the performance check, operation and maintenance of the instrument and its
components.
• Unauthorised modifications to the instrument and its components.
• 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 equipment is not allowed to be operated by children or anyone under
the influence of alcohol, drugs or pharmaceutical preparations. Anyone
who is not familiar with this manual must be supervised when using the
equipment.
• Carry out the stipulated maintenance properly and at the correct time.
• Following completion of the maintenance tasks, perform a functional
check.
1.4 Correct Usage
• The instrument is only to be used for its designated purpose as describe herein.
• Replace faulty components only with original replacement parts from
Proceq.
• 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.
The following statement applies to the products covered in this manual,
unless otherwise specified herein. The statement for other products will
appear in the accompanying documentation.
© 2016 Proceq SA 4
NOTE! This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules and meets all requirements of the Canadian
Interference-Causing Equipment Standard ICES-003 for digital apparatus. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected
• Consult the dealer or an experienced radio/T.V. technician
for help
This device complies with part 15 of the FCC:
Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.”
This Class B digital apparatus complies with Canadian ICES-0003.
2. Technical Specifications
Pundit Touchscreen
Display 7” colour display 800x480 pixels
Memory Internal 8 GB flash memory
Regional settings Metric and imperial units and multi-lan-
guage and timezone supported
Power input 12 V +/-25 % / 1.5 A
Battery 3.6 V, 14 Ah
Battery lifetime > 8h (in standard operating mode)
Humidity < 95 % RH, non condensing
Operating temperature -10°C to +50°C
IP classification IP54
Dimensions 250 x 162 x 62 mm
Weight ~ 1.5 kg (incl. battery)
Standards and Directives CE certification
Pollution Degree 2
Installation Category 2
5 © 2016 Proceq SA
Power Supply
Model HK-AH-120A500-DH
Input 100-240 V / 1.6 A / 50/60 Hz
Output 12 V DC / 5 A
Max. Altitude 2’500 m above sea level
Humidity < 95%
Operating Temperature 0°C - 40°C
Environment Indoor use only
Pollution Degree 2
Installation Category 2
Pundit PL-200 and PL-200PE
Range 0.1 – 7930 μs
Resolution 0.1 μs (< 793 μs), 1 μs (> 793 μs)
Display 7” colour display 800x480 pixels
Pulse Voltage UPV 100 Vpp – 450 Vpp
Pulse Voltage UPE 100 Vpp - 400 Vpp
Receiver Gain 1x – 10’000x (0 – 80dB) [11 steps]
Receiver Sensitivity 10 μV
Receiver Input Impedance 7 kΩ
Pulse Echo Range 0.1 – 1200 μs
Transducer Frequency 50 kHz
Aperture Size 2x25 cm
2
Bandwidth 20 – 500 kHz
Pundit 250 Array
Receiver
Gain 0 – 80 dB
Analog Bandwidth 15 kHz – 100 kHz
Nominal transducer
frequency
50 kHz shear wave
Range 0 – 1000μs
Resolution 1 μs
Transmitter
Pulse Voltage +/-150 V
Pulse Shape rectangle
Pulse Delay 8 ms – 200 ms
Power Supply
Batteries 6 x NiMH, Size AA, 2300 mAh (can be
replaced by the user)
Battery lifetime > 7 h
Mains 12 V – 15 V
Operating Time min. 7 h
Charging Time approx. 150 min
© 2016 Proceq SA 6
Aperture
Number of Channels 8 (with upgrade option to 16)
Transducers per Channel 3
Wave Type shear wave, horizontally polarized
Center Frequency approx. 45 kHz
Transducer Bandwidth 80 % – 100 %
Channel distance 3 cm
Aperture Size 21 cm x 5 cm
Miscellaneous
Weight ~ 3 kg
Operating Temperature -10° – 50°
Humidity < 95 % RH, non condensing
Dimensions 240 x 273 x 153 mm
Laser used for positioning support
Camera 240 x 320 Pixel
3. Operation
The information provided in this manual covers all applications supported
by the Pundit Touchscreen.
3.1 Getting Started
Battery Installation Pundit Touchscreen
To install the Battery into the Pundit Touchscreen Unit, lift the stand as shown. Insert the
battery and fasten in place with the screw.
There are two status LEDs
1
(see page 11) and above them a light
sensor. The upper LED is red while charging and turns to green when it is
fully charged. The other LED is application specific.
NOTE! Only use the power supply provided.
• A complete charge requires approx. 9h (Instrument not operating).
• Charging time is much longer if the instrument is in use.
• An optional quick charger (Part No. 327 01 053) can be used to charge
a spare battery or to charge the battery outside of the instrument. In
this case it takes approx. 4h for a complete charge.
7 © 2016 Proceq SA
Energy Saving
Energy saving may be programmed as desired under System/Power settings.
Connecting the Transducers
(G)
Connect the Transducers to the Pundit Touchscreen Unit using the BNC Adapter Cable
and the BNC Cables. Ensure that the screws
are fastened on the BNC adapter cable.
USB Host:
Connect a mouse, keyboard or USB stick.
USB Host
USB Device
Ethernet
Power Supply
USB Device:
Connect to a PC.
Ethernet:
Connection for firmware upgrades.
Power Supply:
Connect the power supply through this connection.
Buttons
Lift the protective visor.
At the upper right of the screen there are three buttons
2
(see page 11).
Power On/Off – Press to power on. Press and hold to power off.
Soft Key – Open a pdf document (e.g. Operating instructions) or
toggle full screen view.
Back Button – returns to previous screen.
Battery Installation Pundit Array Transducer
Remove the battery pack from the Pundit Array Transducer by loosening
the two screws and pulling out the battery pack. On the underside there
is a plate which has to be removed by unscrewing two screws to access
the battery compartment.
NOTE! Insert the six AA NiMH rechargeable batteries into the
battery pack being sure to observe the correct polarity and
replace into the Pundit Array Transducer. Before first use, fully charge the batteries using the charger provided. While the
battery is charging the status LED is green. It will extinguish
when fully charged. A full charge takes about 2.5 hours.
By pressing and holding the fuel gauge button, the actual
charge statues can be seen. Each LED represents 20%
charge, so all 5 LEDs lit indicates a charge of more than 80%.
© 2016 Proceq SA 8
Any AA batteries may be used with the instrument, but the fuel gauge is
only accurate when the recommended NiMH batteries are used.
WARNING!
If standard alkaline batteries (non-rechargeable) are used, it is
very important not to connect the charger as this will result in
damage to the instrument.
3.2 Main Menu
On start up the main menu containing 6 icons is displayed.
Measurement:
Application specific measurement screen.
Settings:
For application specific settings.
Explorer:
File manager functionality for reviewing measurements saved on the instrument.
System:
For system settings, e.g. language, display options, power settings.
Information:
For device information and operating instructions.
Exit:
Power Off.
All functions may be accessed directly via the touch screen. Return to the
previous menu by pressing the back button or the return icon (arrow) at
the top left of the touch screen.
3.3 Pundit PL-200
Scroll up and down the screen by dragging your finger up or down the
screen. The current setting is displayed on the right hand side. Tap on an
item to adjust it.
Transducer
Connected transducer
Select the frequency of the transducer to be used. The custom transducer setting allows non-standard transducers up to 500 kHz to be used.
If this option is selected, the transducer frequency must also be entered.
NOTE! When a transducer frequency is selected, the factory
settings are automatically loaded for that transducer, based
on 1.5m cables being used. Generally, the accuracy this provides is sufficient for most applications, so zeroing is not required with this configuration.
Zeroing Transducer
For increased accuracy or when working with different cable lengths, the
Pundit PL-200 should be zeroed.
Enter the expected calibration value as it is
marked on the Calibration Rod.
9 © 2016 Proceq SA
Couple the transducers to the Calibration Rod using the ultrasound Couplant
and press firmly together.
Tap on the start icon to carry out the zeroing.
On completion “Zeroing succeeded” will be displayed.
Tap to return to the settings menu.
Tap to return to the zeroing start screen.
Tap to reload the factory calibration values for the
transducer. This setting provides sufficient accuracy for
most measurements, but for exact zeroing, perform the
procedure described above.
Measurement Settings
Measurement Range
Short range (default). For measurements up to approximately 800 μs.
This corresponds to a path length of approximately 3 m for normal concrete. This provides the maximum measurement resolution of 0.1 μs.
For larger objects select the long range. In this case the measurement
resolution is 1 μs.
The measurement screen indicates (--- μs) if a measurement is out of
range.
Pulse Repetition Frequency
Pulse Repetition Frequencies (PRF) of 5 Hz to 40 Hz (measurements per
second) may be selected. High values should be selected only when the
instrument is used on large objects with high receiver amplification settings. In such cases, it helps to increase the update rate on the display.
For general concrete or ceramic materials testing a PRF of between 1030 Hz is normally used.
The transducers supplied with the instrument are not damped and, therefore, on being excited by the transmitter they have a long ring-down time.
The ring-down time may exceed the pulse interval when the PRF is set
to high values, i. e. the previous pulse may still be ringing as the next
pulse arrives. This effect may cause errors when testing short path length
specimens having low internal damping. If this occurs reduce the PRF.
Line Scan
Line Scan provides the capability to measure along a linear grid at equal
spacing. The distance between the transducers may be varied for each
measurement to accommodate irregular shaped objects (see “3.4.2
Measurement Modes” – Line Scan).
Series Length
Set the number of measurements to be made or leave it open ended.
Distance between Measurements
Set the spacing.
Unit
Choose between pulse velocity or transmission time as the unit for the
graphical display of the results.
© 2016 Proceq SA 10
Units
Unit
Choose between metric and imperial units.
Amplitude Unit
Choose to display the receive signal amplitude either as a percentage or
in decibels.
Compressive Strength Unit
Choose the unit for compressive strength correlations.
E-modulus Unit
Choose the unit for E-modulus calculations.
E-modulus Density Unit
Choose the unit for entering density for E-modulus calculations.
Trigger
Amplitude Trigger
When selected, allows a user defined amplitude threshold for triggering.
Drag the horizontal cursor to the desired trigger level. The zoom function
is useful to set a specific trigger threshold.
Follow Trigger
When selected, the point at which the trigger occurs is always displayed
in the centre of the screen, irrespective of the measured transmission
time. This does not apply if manual triggering or dual cursor triggering is
being used (see “3.3.1 Measurement Screen”).
NOTE! Both triggering options can be selected at the same
time. If none are selected then the triggering is carried out
automatically as normal.
Corrections
Temperature correction UPV
Pulse velocity measurements are affected by several factors. Two key
factors are the moisture content of the concrete and the temperature.
The table below shows the correction factor that should be entered
based on the recommendations made in BS 1881: Part 203.
Temperature Dry concrete Wet concrete
10 °C – 30 °C 1.0 (No correction) 1.0 (No correction)
60 °C 1.05 1.04
40 °C 1.02 1.02
0 °C 0.99 0.99
-4 °C 0.98 0.92
The correction factor is applied to pulse velocity calculations. The measured transmission time is unaffected.
Amplitude Analysis
Marker
When selected a marker is activated that can be used to record the amplitude of the received signal (see”3.3.5 Measuring with Pundit PL-200”).
11 © 2016 Proceq SA
Area Scan
Raster X: set the grid spacing for the X-axis.
Raster Y: set the grid spacing for the Y-axis.
Measurement count X: Set the number of measurements to be made
in the X-direction.
Measurement count Y: Set the number of measurements to be made in
the Y-direction.
Colour Scheme: Select the colour scheme (can be adjusted later in the
explorer).
Result: Select the measurement parameter you wish to display.
Auto Color Range: On or off. If not selected then the user may define
minimum and maximum settings for the colour range and these may also
be adjusted later in the explorer. The color scheme may also be inverted
by setting the maximum value lower than the minimum.
Data Logging Mode
Interval: Select the interval between measurements. (Minimum interval
is 1 minute).
Number of events: Until the test is completed. (Maximum number of
events is 3000).
Averaging: Determines the number of readings to be taken and averaged at each interval measurement.
Result: select transmission time or pulse velocity.
Distance between transducers: This must be set if pulse velocity is
selected as the test result unit.
3.3.1 Measurement Screen
The standard measurement screen is shown. All settings are directly accessible from the measurement screen.
Zoom
Zoom in by placing thumb and index finger together on the
screen and spreading them apart. This can be used in both the
horizontal and vertical directions when making a measurement.
Zoom out by placing thumb and index finger apart on the
screen and pinching them together.
Pan
Pan the image from left to right by dragging.
1
1
2
3
4
5
6
7
8
9
10
11
2
© 2016 Proceq SA 12
Measuring screen controls
1
Filename: Enter the file name and press return. Saved measure-
ments will be stored with this file name. If several measurements are
made under the same file name, a suffix increments after each measurement.
2
Measurement mode: Select the type of measurement to be carried
out (see section “3.4.2 Measurement Modes”).
3
The top right hand corner of the display shows the current trans-
ducer selected, current time and the battery status.
4
Gain: Adjust the receiver gain, from 1x up to a maximum of 10 000x.
5
Voltage: Adjust the transmitter voltage. For best results, it is best to
begin with low transmitter voltage and a low gain setting. Then increase
until a stable signal level is achieved. Signal clipping should be avoided.
6
Continuous/Burst Transmission:
Continues transmitting until the stop icon is pressed.
Records a measurement as soon as a stable signal is
detected.
7
Settings: Enter the settings menu.
8
Stop/Save:
Stop the current measurement.
Save the current measurement.
Save the current series and continue the measurement.
9
Start/Snapshot:
Begin the measurement.
Save the current measurement as displayed on the
screen and continue measuring.
10
Cursor Selection:
Automatic triggering.
Note: In data logging mode triggering is always
automatic, but may be adjusted manually in PL-Link.
Manual triggering. Set the cursor position manually, by
dragging it to the left or right. The trigger position may also
be adjusted later on the saved waveform in the Explorer.
Dual cursor. Transmission time mode only. Both cursors
have to be set manually. The second cursor is particularly useful when measuring with shear wave transducers.
Dual cursor is selected automatically when measuring in
E-modulus mode.
11
Zoom:
Zoom in and out of the current measurement.
13 © 2016 Proceq SA
3.3.2 Basic Measurement Modes
Transmission Time
The measured transmission time between the transducers.
Distance
Enter the pulse velocity of the material
under test.
Result is the transmission time and the
distance between the transducers.
Pulse Velocity
Enter the distance between the transducers.
Result is the transmission time and
the pulse velocity of the material under
test.
Compressive Strength
Prior to carrying out this measurement, a conversion curve valid for the
concrete under test must be created in PL-Link and downloaded to the
instrument.
Select the correlation curve.
Enter the distance between the transducers.
If a SONREB curve is selected, enter the
rebound value determined at the same location as the pulse velocity measurement.
SONREB is a method of combining an ultrasonic pulse velocity measurement with a rebound hammer measurement to improve the accuracy of
compressive strength estimation.
Result is the transmission time and the
compressive strength of the material
under test.
3.3.3 Special Measurement Modes
Crack Depth
The crack depth measurement implemented in Pundit PL-200 is in accordance with the method described in BS 1881:Part 203.
Enter the distance ‘b’ as indicated in
the diagram shown on the screen.
Position the transducers as shown in ‘Step 1’ on the screen.
Measure t1.
© 2016 Proceq SA 14
Position the transducers as shown in ‘Step 2’ on the screen.
Measure t2.
Result shows the transmission times
t1 and t2 and the crack depth ‘d’.
An incorrect measurement of t1 or t2
may be deleted and repeated before
continuing.
An error message is displayed for an
invalid measurement
(t2 < t1 or t2 > 2 x t1).
NOTE! For this method to give good results, the crack must
be perpendicular to the surface. It must also be free of water
or debris which would allow the wave to propagate through
the crack. The crack must be sufficiently wide to prevent the
wave from simply propagating around it. There must also be no
rebars within the vicinity of the crack. If any of these conditions
occur, the result will be severely affected and it may appear that
the crack depth is much shallower than is actually the case.
Surface Velocity
The surface velocity measurement implemented in Pundit PL-200 is in
accordance with the method described in BS 1881:Part 203.
The transmitter remains in a fixed position. The receiver is moved at a
fixed interval.
Enter the distance ‘b’ as indicated in the
diagram shown on the screen.
Enter the number of measurements to
be made.
Measure the transmission time at distance ‘b’.
Record the first measurement at distance ‘b’.
Move the receiver a further distance ‘b’ and measure again. Continue
until you have completed the series.
The pulse velocity is calculated from the slope of the curve.
NOTE! If the points recorded show a discontinuity, it is likely
that a surface crack or surface layer of inferior quality is present. In this case the measured velocity is unreliable.
E-Modulus
The dynamic E-modulus and the Poisson’s Ratio of a material (e.g. concrete or rock) may be determined by measuring the P- and S-wave pulse
velocities. The method is described in the following two standards and is
equally applicable to concrete or other solids:
ASTM D 2845 – Standard Test Method for Laboratory Determination of
Pulse Velocities and Ultrasonic Elastic Constants of Rock.
ISRM – Aydin A., Upgraded ISRM Suggested Method for Determining
Sound Velocity by Ultrasonic Pulse Transmission Technique: Rock Mech
15 © 2016 Proceq SA
Rock Eng (2014) 47:255-259, DOI: 10.1997/s00603-013-0454-z).
The dual cursor mode is
automatically activated.
Use the first cursor to mark
the onset of the P-wave
component.
Use the second cursor to
mark the onset of the Swave component.
In order to calculate the
E-modulus it is necessary
to enter the density of the
material.
When downloaded to
PL-Link, the Poisson’s
Ratio of the material is also
calculated.
P-waves vs. S-waves
In a P-wave (longitudinal wave) the particle displacement is parallel to
the direction of wave propagation. The particles oscillate back and forth
about their individual equilibrium positions. In an S-wave (shear wave) the
particle displacement is perpendicular to the direction of wave propagation. The particles oscillate up and down about their individual equilibrium positions as the wave passes by.
Measuring with S-wave Transducers
Detection of the shear wave (S-wave) requires the use of the waveform
display in order to manually locate the onset of the shear wave echo as
it is always preceded by a weak P-wave component that is detected by
the automatic triggering.
S-waves travel in a one-dimensional plane. The strongest signal appears
when the transducers are correctly aligned. This property can be used
to correctly detect the S-wave component of the received signal. 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 transmitted into the object under test.
Misaligned by 90°
Weak S-wave component
Weak S-wave
component with
the transducers
misaligned.
Rotate one transducer into and out of alignment and watch the S-wave
component increase and decrease.
Correctly aligned
Strong S-wave component
Much stronger
S-wave component
when the
transducers are
correctly aligned.
© 2016 Proceq SA 16
3.3.4 Multi-Measurement Modes
Line Scan
The distance ‘a’ is entered in the ‘Settings’ menu.
Position the transducers at the starting position and enter the distance x1.
(Not required if transmission time only is
being measured.)
Press the start icon to begin.
Press the snapshot icon and record the first measurement. If burst mode is selected this will be recorded
automatically.
Move the transducers the distance ‘a’ to the next point on the grid.
If the distance ‘x’ does not change press the snapshot icon again to
make the second measurement and so on.
Press this icon to save the current series. If the distance ‘x’ is different at the new position a new value
may be entered before proceeding with the scan.
Enter the new distance ‘x’.
Press to continue the scan.
Use this icon to delete the last measurement made.
Press the to save the current series and reset the instrument for a new series.
Area Scan
Area scan allows a 2D visualization of an element based on pulse velocity, transmission time or distance measurements. The measurement
grid is defined in ‘Settings.’ If the expected variation of the measured
parameter is not known then select ‘Auto color range.’ This may be subsequently adjusted in the explorer. If the expected range is known, the
color range may be defined by setting a maximum value and a minimum
value. E.g. The Indian standard IS 13311 defines pulse velocity bands for
concrete quality classification.
Loading...