Low Strain Pile Integrity Tester NL 4047 X / 001
Low Strain Pile Integrity Tester NL 4047 X / 001
Low Strain Pile Integrity Tester NL 4047 X / 001
Low Strain Pile Integrity Tester NL 4047 X / 001

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Low Strain Pile Integrity Tester NL 4047 X / 001



Integral Testing

Application
*Low strain pile integrity testing by reflected wave method

Applicable Standards
*Standard test method for low strain impact integrity testing of deep foundations ASTM D5882-07
*Technical code for detection of building foundation pile JGJ 106-2014
*Dynamic testing technology regulations on highway engineering foundation pile JTG/T F81-01-2004
*Nondestructive detection code for railway engineering foundation pile TB 10218-2008
*Technical code for defection of building foundation JGJ 340-2015

Principle
The test is based on wave propagation theory. The name “low strain pile integrity test” stems from the fact that when a light impact is applied to a pile it produces a low strain. The impact generates a stress wave that travels down the pile. When the downward stress wave encounters a change in cross section or in concrete quality, it generates reflected wave that is later observed at the pile top. By analyzing the propagation time,amplitude and phase of that reflected wave, it has the evaluation of pile integrity ultimately.

 
Technical Specifications 
 
Model Number  NL 4047 X / 001
 Alternate Model RSM-PRT(N)
 Display Method 6.4 inch True-Color LCD Screen (Resolution :
640 x 480 (adjustable backlight)
 Storage Capacity 16G Electronic Hard Disk
 Signal Acquisition Method Wired
 Master Control System Low Powered Embedded System, Basic
Frequency ≥1 GHz, Memory : 512 M
 Sampling Interval 5 ~ 1000μs
 Floating Point Magnification 1 ~ 256
 Recording Length 1k
 A/D Conversion Accuracy 24-bit instantaneous floating point
 System Noise Voltage < 20μV
 Dynamic Range ≥100dB
 Data Report Method USB
 Frequency Bandwith 2 ~ 12000 Hz
 Sensor Bandwith 0.5 ~ 9000 Hz
 Power Supply Mode Removeable lithium battery; desktop charger
is supported Service life ≥10h
 Operation Mode Touch Screen
 Number of Channels 1
 Sensor Piezoelectric Accelerometer & Speedometer
 Trigger Level Seven-level selectable
 Operating Temperature   -20 ~ +55°C
 Shell High-strength engineering plastics
 Dimensions 220 x 160 x 56 mm
 Weight 1.3 kg (including lithium battery)


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