Technical data sheet
Medium Heavy Falling Weight Deflectometer for the dynamic plate load test according to TP Gestein-StB, Part 8.2.1. For testing the soil and base courses applied using loads similar to traffic.
- 15 kg loading device with ergonomically optimised ZORN triangular catch handle (calibrated impact force 14.140 kN, Evd measuring range up to 150 MN/m²)
- 300 mm loading plate incl. acceleration sensor and mounting pin that can be repositioned
- Maximum ground pressure 0.2 MN/m²
- Testing depth max. 600 mm
- All metal parts have high-quality zinc electroplating and in this way are optimally protected against corrosion and everyday wear and tear
- Ergonomic handheld device made of robust plastic (Bayer polycarbonate Makrolon)
- Power supply via 4 commercially available R6 batteries (Mignon/AA) for approx. 1500 tests (included)
- Multi-lingual, backlit, graphic display (German plus 10 other languages)
- Easy to understand user prompts with indication of the deformation values during the test and automatic calculation of the results (deformation modulus Evd, M and s/v ratio)
- Graphic depiction of the measurement curves for easier interpretation of the results
- Internal data memory for up to 10,000 tests plus SD card slot for external data storage
- Integrated calibration reminder
- Integrated function check for the acceleration sensor
- Text entry as required, e.g. for the improved assignment of the measurement locations, testers, course designations or material
- SD card reader (SD adapter to USB 2.0/USB OTG)
- Resilient full leather pouch for protection against dust and spray
You can go back to the ZFG-M here
The dynamic plate load test with the Medium Heavy Falling Weight Deflectometer is used to check the soil and base courses applied using loads similar to traffic. A dynamic deformation modulus Evd,M is used as the measurement variable. The test is similar to the familiar method with the Lightweight Deflectometer (ZORN ZFG); with the difference that the maximum normal stress under the loading plate of the Medium Heavy Falling Weight Deflectometer is 0.2 MN/m² (0.1 MN/m² on the ZFG). The maximum impact force produced by a 15 kg falling weight is double that of the Lightweight Deflectometer at 14.140 kN.