Settlement and Displacement

DS830

Multipoint borehole extensometer

DS830_multipoint_borehole_extensometer
tunnel_icon

Tunnels

easy_installation_icon

Easy installation

durable_icon

Durable

resistant_icon

Resistant

economical_icon

Economical

Applications

Monitoring of rock and soil subsidence , used in tunnels , dams , etc.

Description

The DS830 multipoint borehole extensometer has been designed for the detection of micro-movements in soil or rock (subsidence, foundation settlements, convergence measurements in masonry structures, etc.).
The strain gauge detects variations in distance between two points: between the anchor placed in depth and the measuring head located on the surface. The DS830 strain gauge can be installed at great depths with great ease.
Several versions are available, from the single model with a single measuring base, or the model multiple which can consist of 2 to 8 measurement bases. The anchor points of the multiple strain gauge are distributed at different depths along the same hole
The extensometer head is made of stainless steel ensuring precision and efficiency even in the long term. The measuring heads, produced in several versions, are designed both for a mechanical type measurement (with removable centesimal comparator) and for a electric type measurement (with transducer potentiometric mod. DS810-01).
The rods (in invar / stainless steel / fiberglass) that join the points anchoring to the measuring head, they are protected by a sliding tube. The invar or stainless steel rods are available in lengths of 1, 2 or 3 meters and are joined directly on site, while those in fiberglass are made to the required size, and are rolled up for shipping.

Reading data

Manual reading

Automatic reading

Automatic reading

Data acquisition system

Downloads

Data sheet

Software

Manual

For information and quotes write us or call us at: +39 02 97003039

Related products

DS811_joint_meter

DS811

Joint meter

DS820_wire_joint_meter

DS820

Wire joint meter

DS840_fixed_extrude_meter

DS840

Fixed extrude meter

DS850_extrude_meter

DS850

Extrude meter