EquipmentPile Integrity Tester (PIT)

The Pile Integrity Tester (PIT) gives peace of mind that a pile or shaft is free of major cracks and voids, prior to construction of the superstructure. It may be used on most concrete or wood foundations. The PIT may also be used to test piles integral in the structure, such as those supporting existing bridges or towers, and may assess their length. 

The PIT performs wave equation-based non-destructive foundation investigations known as Low Strain Impact Integrity Tests or Low Strain Dynamic Tests. These tests may be performed by the Pulse (or Sonic) Echo or Transient Response Methods. With the PIT, any form of the test is performed fast, potentially making it possible to test every pile on a job site. 

The PIT test consists of attaching one or two accelerometers to the foundation and using a hand-held hammer to impact it. The PIT collects the acceleration data and displays curves that reveal any significant changes in cross section that may exist along the shaft. The PIT-W software post-processes the data and generates reports, while the PIT-S software simulates a PIT test and performs simplified signal matching to assess the shape of the foundation. 

The Pile Integrity Tester is available in several configurations to match the needs of each user. PIT-QV and PIT-QFV have a large screen and read data from traditional (cabled) accelerometers and/or instrumented hammers. 

All models of the Pile Integrity Tester are battery powered, operated through a high visibility touch screen, and include a Fast Fourier Transform (FFT) feature and a license of PIT-W Standard Software. All comply with ASTM D5882 and many other codes and specifications. 


  • Size: 272X212X60 mm
  • Weight: 2.04 Kg
  • Screen Size: 21.3 cm (8.4”)
  • Temperature Range: Operating: ‐20 to 40˚ C; Storage:  ‐30 to 65˚ C
  • Sunlight readable VGA colour display for any lighting conditions, resolution 640 x 480 pixels 
  • Powered by Internal Battery (10 hours duration) 


  • Data Storage: Built in 32 GB drive 
  • USB port for data retrieval 
  • 24-bit A/D converter 
  • Analog Signal Frequency response: 22 KHz (‐3dB) 
  • Sampling Digitizing frequency of > 1 MHz (net frequency after DSP > 32 KHz) 
  • Sampling Frequency accuracy within 0.01% 
  • Sampling speed of 32 KHz – 150 KHz 
  • Windows 10 Operating System 


  • One (PIT‐QV) or two (PIT‐QFV) channels of acceleration data acquisition 
  • One (PIT‐QV) or two (PIT‐QFV) integrators of acceleration to velocity 
  • PIT‐QV accepts data from one traditional accelerometer 
  • PIT‐QFV accepts data from two traditional accelerometers or from one traditional
    accelerometer and one traditional instrumented hammer 
  • Input of names and descriptions for each pile tested 
  • Date and time stamps 
  • Signal amplification capability, variable over time 
  • Capability of measuring and reproducing signals of duration between 2 and 30 ms 
  • Data can be averaged over a variable number of blows 
  • FFT (Fast Fourier Transform) feature 


  • Includes licenses of PIT‐W Standard and PIT‐S 
  • Soft carrying case 
  • Full one‐year warranty 
  • Operates in English or Metric units 
  • Technical manual included 

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