HIGH ACCCURACY DILATOMETER
MAY BE USED IN DEEP BOREHOLE
USER-FRIENDLY TABLET-OPERATED READOUT
The DMPe Borehole – or Flexible – Dilatometer is the electronic version of the DMP designed for determining in situ the modulus of deformation of rock masses
The DMPe Dilatometer consists of a probe with a metal central body. The probe includes:
The probe is read with the D/P BOX Readout which is operated with an Android tablet. This versatile readout is compatible with other dilatometers / pressuremeters offered by the manufacturer. A special application installed on the tablet, allows configuring the tests and calibrations, to read and plot the test results in real-time, to log the data, and to review test results.
The dilatometer probe is designed to be lowered down into the borehole using a string of rods. Usually compressed dry gas (nitrogen or air) is used for pressurizing the probe.
The borehole dilatometer test consists in loading the ground in progressive steps and to measuring the diametrical deformation resulting from this loading.
The test is used for generating the following parameters:
DMPe Probe |
|
Weight |
45 kg |
Diameter |
95 mm (101-mm borehole) |
Probe / Membrane Length |
1.8 m / 1 m |
‘HR’ Membrane (standard) |
For soft to hard rock |
3 Inductives Displacement Sensors |
|
Range |
20 mm |
Resolution (D/P BOX) |
1 μm |
Pressure Sensor |
|
Max Working Presssure |
20 000 kPa |
Resolution (D/P BOX) |
1 kPa |
D/P BOX Readout |
|
User Interface |
Bluetooth communication with an Andoid tablet |
Power Supply |
2 x 12 V, 2.3 A, rechargeable batteries |
Data Output Format |
CSV, spreadsheet compatible |
Dimensions |
25 x 28 x 12 cm (l x w x h) |
Housing |
Splashproof, resistant ABS case |
Autonomy |
> 8 hours typically |
Power supply interface |
Universal AC wall plug with US/Euro adapter + adapter cable for car (lighter) & for external battery |
Please Specify:
Optional Accessories