Light Weight Deflectometer

Lightweight Deflectometer: Functionality

Light Weight Deflectometer is the ideal equipment for construction companies to check the compaction quality of soil. It is used in earthworks, civil engineering, road construction, canal and pipeline construction, for laying power, fibre optic and broadband cables, in gardening and landscaping, in sports ground construction and railway track construction. Higher degrees of compaction that exceed 120 MN/m² EV2 have to be attested, for example, when laying ballasted base layers. For this, TERRATEST® has produced the Medium Weight Deflectometer which works with double force impact. In just two minutes, even inexperienced users can test, print and archive the quality of soil compaction with the handy measuring device. The Light Weight Deflectometer from TERRATEST® is equipped with voice navigation and a GPS system. The voice navigation guides the users through the measurement process via spoken commands which makes the operation of our Light Falling Weight Deflectometer child’s play in every sense of the word.

Light Falling Weight Deflectometer: Measurement Process

The measurement process works as follows: Place the load plate with the sensor on the ground that needs testing and connect it to the measuring computer. Now place the loading device on the load plate and switch on the electronic maeasuring computer. First, perform three initial impulses and then three measurement impulses, simply following the voice navigation announcements. This will guide even inexperienced users safely and quickly through the measurement process. The display on measuring computer shows the deflection in mm and the deflection curve after each impulse. After the third measuring impulse, the display of the measuring computer automatically shows the test result, the EVd value in meganewtons per square meter and the distance/speed ratio (s/v value). In less than two minutes, your own staff can carry out the control of compaction quality yourself on the construction site. This means you can avoid the high costs and waiting times that often arise when hiring an external testing laboratory. Often the cost of the device pays for itself within a few months.

Light Weight Deflectometer:  Easy testing supported by many features

Our Lightweight Deflectometer testing equipment enables you to print or send the test result to your PC, including the date, time and GPS data, straight from the construction site. TERRATEST 4000 STREAM also enables the user to stream the measurement results directly from the electronic measuring computer to their smartphone. This means that with the cable model too, you have the possibility to essentially send data to the client in real time by email, directly from the construction site. The Light Weight Deflectometer is therefore even more convenient to use. The TERRATEST® “TEOLO” web based software will help you prepare a highly professional presentation of your compaction report. This consists of an individual protocol, statistical evaluation and Google®-Maps overview of all measurements carried out on the respective construction site by your Light Weight Deflectometer.