GW Light Weight Deflectometer

GW Light Weight Deflectometer

Light weight deflectometer, is a non-destructive (NDT) instruments, also called as dynamic deformation modulus tester (hand-held drop hammer deflection meter), it is used to determine the deflection capacity of the subgrade under the dynamic load, thereby evaluating the bearing capacity and deformation of the subgrade.
The deflectometer can be used to monitor and inspect the quality of foundation construction on railways, highways, airports, urban traffic, ports, terminals, and industrial and civil structures that are subjected to dynamic loads.
Our light weight deflectometer is especially suitable for the detection of narrow sections of the site, such as the transition of roads and bridges (culverts) and the detection of road shoulders and so on. It can quickly measure the dynamic deformation modulus (Evd value).
Usage range    
Soil type    
Various types of soil and earth and rock mixed fillers with a particle size not larger than 1/4 of the diameter of the load plate
Range    
10Mpa≤Evd≤225Mpa
Depth: 0?500mm
Working environment: Temp.: -10??40? Humidity ?90%HR
Data acquisition device: Adding load method    With 1pc geophone sensor Weight: 15kg, including hammer of 10kg drop weight drop value: 700±20mm Maximum impact: 7.07kN Impact duration: 18±1ms
Loading plate Weight: 15kg Diameter:300mm Thickness?20mm
Handheld main unit: Deflection range    
Capacity: 2000 groups of Refer to cell phone config, normally with 10G storage
Size Screen size: 3inches / 5 inch
Power supply: Li-battery of more than 18hours According to cell phone battery
Display: Screen display(Chinese/English switch)-- Cell phone app--
Data transfer: Cable transfer Wifi transfer data
Printer: Connection Bluetooth
Package: Carrying case Inside case material: engineering plastic Measurement: around 420 × 140 × 335mm Weight: around 4.5KG
Outside case material: aluminum alloy case Measurement: around 1230 × 400 × 400mm Weight: around 56KG