EquipmentPile Installation Recorder (PIR)

The Pile Installation Recorder is an Automated Monitoring Equipment that assists in the correct installation of augered cast in place (ACIP) / continuous flight auger (CFA) and drilled displacement piles by displaying target versus actual poured concrete volume in real time. 

The equipment may be installed in any crane, including those operating with low headroom. As the crane proceeds from pile to pile, the operator easily monitors the installation of every pile on the job.  

The key parameters for a precise installation are pumped grout volume and auger depth. The PIR accurately records and displays both in real time. The equipment consists of a main unit installed in the crane cabin, a depth measurement device, a Foxboro magnetic flow meter, a pressure transducer that gives an indication of the auger torque and an auger rotation measurement.  

The PIR is totally operated through the touch screen display of the main unit. Its large readouts provide useful, easy to see information to the crane operator. 

Results may be printed in the form of an installation log, on a small field printer, immediately after each pile is completed. Once data is downloaded to a computer the PIR-PLOT Software performs further analysis and outputs installation and productivity reports, along with graphs of key parameters versus depth. 

The Pile Installation Recorder conforms with the Federal Highway Administration Geotechnical Engineering Circular (GEC) #8 – and with the Deep Foundations Institute Augered Cast-In-Place Piles Manual. 

Main Unit

  • Size: 60 x 180 x 228 mm
  • Weight: 1.5Kg
  • Mounting: Inside crane cabin
  • User Interface: High Visibility Colour LCD with LED Backlighting
  • Power: 12 or 24 V DC (Typically uses crane battery)
  • Temperature Range: 0° to 40° C, operating; -20° to 65° C storage.
  • Electronics: PC compatible processor, running Microsoft Windows® XP; 32-bit Microprocessor with 10-bit Analog to Digital Converter
  • Data Storage: Internal 40 GB Solid State Drive (SSD)
  • Data Export: USB
  • Printer Interface: USB


  • Microprocessor: PXA270 @ 520 MHz
  • Data Storage: Built in 2 GB drive
  • Data Retrieved: USB
  • Wireless: 30m range; 802.11b/g/n (WIFI) Link with PIR Main Unit

Flow Meter

  • Type: Magnetic Flow Meter
  • Mounting: In line with main grout line, 76 to 152mm diameter
  • Size: 450mm x 450mm x 915mm
  • Weight: 45Kg
  • Max Flow Rate: 625gpm with 76mm grout line; 2440gpm with 152mm grout line
  • Accuracy: +2%

Grout Pressure Measurement Unit

  • Type: Pressure transducer
  • Mounting: On magnetic flow tube
  • Max Range: Up to 1000 PSI
  • Output Signal: 4-20mA output

Torque Measurement Unit

  • Type: Pressure transducer (hydraulic pressure applied to gear motor – “torque pressure” – relates to auger torque)
  • Mounting: On Hydraulic line powering the gear box
  • Max Range: Up to 10000 PSI
  • Output Signal: 4-20mA output
Depth Measurement Unit 
  Wireless (US patent No. 8612175)  Conventional (wired) 
Type:  Rotary encoder on spring tensioned arm assembly  Rotary encoder on a self-retracting reel 
Mounting:  Attaches to auger gear box  In boom of crane, cable attaches to gear box 
Size:  600mm x 150mm x 150mm  305mm x 910mm x 910mm 
Weight:  12kg  73kg 
Max Range:  200m  49m 
Resolution:  0.6mm  0.6mm 

Wireless Rotation Measurement Unit

  • Type: Proximity switch
  • Mounting: Mounts on gear box
  • Size (diameter x length): 18mm x 50mm
  • Weight: 114g
  • Functionality: Normally open
  • Max Switching Frequency: 200Hz
  • Sensing range: 10mm
  • Repeatability: 0.01mm

Wireless Transmitter

  • Size: 60mm x 76mm x 175mm
  • Weight: 0.7Kg
  • Transmission Range: 100m
  • Frequency: 2.4Ghz
  • Electronics: 32-bit 24 MHz microcontroller, 12 bit digital to analog converter
  • Mounting: On auger gear box
  • Power: Rechargeable battery, size 60mm x 76mm x 175mm, run time at least 24hrs
  • Temperature Range: 0° to 40° C, operating; -20° to 65° C storage.


  • Paper Summary Print Out for each Pile 
  • User selectable depth increment 
  • Results in SI or English units 
  • Includes PIRPLOT Software License 
  • Technical manuals and support 
  • One-year warranty on main unit. 

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