S228N Lightweight deflectometer

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Dynamic plate load test

This Light Weight Deflectometer is used to determine the dynamic deformation modulus Evd in MPa [MN/m²] using the dynamic plate load test.
Test results provide conclusions on the bearing capacity and compaction quality of soils.
The main field of application for LWDs is earthworks in transport infrastructure construction. Further applications are soil investigation and landscaping.

• Integrated WIFI transmitter for wireless, fast and secure transmission of measurement data from ZFG to Smartphone, Tablet or PC
• High-precision GPS/GNSS receiver
• Automatic calculation of deflection, s/v value and deformation modulus Evd
• Load device with 10 kg drop weight, impact load 7.07 kN, measuring range Evd 15-70 MPa (MN/m²)
• Ready for optional load device with 15 kg drop weight and 1.5 times impact load (10.605 kN); measuring range Evd 70-105 MPa (MN/m²)
• 300 mm base plate with acceleration sensor (MEMS), max. ground pressure 0.1 MPa (MN/m²)
• Measuring depth/depth of influence: ca. 600 mm
• Sensor housing ready for dynamic CBR and 150 mm base plate accessory
• Ergonomic, triangular catch handle with anti-slip
  powder coating
• All metal parts with corrosion protection and suitable for use at construction sites
• Handheld electronics box (data logger) in robust, weatherproof full leather case
• Automatic calculation of deflection means, s/v value and modulus (Evd)
• Multilingual, backlit and graphics-capable display, display of deflection graphs
• Internal memory and SD card for up to 10.000 measurements, automatic storage
• SD card USB adapter
• Sensor self-test (2G) and integrated calibration memory
• Preloading impacts can be switched off
• Thermo printer interface
• Quick starter manual and calibration protocol

Being easy to handle and providing immediate measuring results, the Light Weight Deflectometer is additionally suited for monitoring intra-company operations. It facilitates quick decisions for continuing construction work at the site.

• Load device: 210 mm, 1.140 mm (Width, height)
• Base plate: 300 mm, 15 kg (Diameter, weight)
  Electronics box: 120 mm, 90 mm, 0,5 kg (Width, height, weight)

Power supply: four standard R6 batteries (Mignon type / AA) for ca. 1.500 tests (included)
Total Weight: 15 kg approx.

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