LIGHT DYNAMIC PLATE LDD 100, which is known also as Light falling weight deflectometer, is designed for a fast immediate checking of the dynamic parameters of compacted soil construction layers using so called Dynamic Plate Load Bearing Test. By this test, the 10 kg rammer is dropped from a height cca 1m on the bearing plate, which causes deflection of the under-laying soil material. This deflection is measured to provide the dynamic bearing power of the checked-up foundation (dynamic modulus of elasticity). Significant speeding up of field tests, saving of time and costs, wide range of application from small intro villain earthworks to road, air-field, industry and dam constructions.
LDD 100 on the construction site (click for a more detailed view)
Loading plate diameter 300 mm, loading plate mass 15 kg
Rammer mass 10 kg, impact peak force 7.1kN, impact time 17 msec
Dynamic modulus of elasticity Evd determination, range 2 to 220 MPa
Possibility of expand by accessories for well known CBR determination
Instant evaluation of the test results including on-line print output
Miniature accu-powered graphic printer as a standard accessories
Graphic representation of the time course of deflection of the soil
Optional memories for storing from 25 up to 150 test courses
Possibility of text and graphic printing of test courses from memory
Possibility of data transmission from memory into PC (Notebook)
Standard serial RS232 line connection as a basic system accessories
Full version SW for data acquisition on a PC is a part of any memory option
The real time and the calendar with a standby support power supply as standard accessories
3 possibilities of power supply, 220V AC, 12V DC, including battery charging
Accumulator-battery power supply operating time up to 20 hours
A well arranged membrane long-life keyboard
A well arranged alphanumerical LCD display 2x16 characters
A practical design, alu case for electronic unit, wood case for mechanical parts