EDS-63U-D MECHANICAL MULTIPOINT BOREHOLE EXTENSOMETER

Model EDS-63U/D is a mechanical multipoint borehole extensometer which is economical, reliable and preferred to use at the locations where access to the mouth of borehole is easily available. The reading are taken manually with a micrometer depth gage.

Model EDS-63U suitable for upward borehole, while Model EDS-63D suitable for downward borehole

The MPBX essentially consists of anchors grouted in a borehole at different depth sand connected to a reference plate with connecting rods (fiberglass or stainless steel). The connecting rods are enclosed inside heavy duty protective tubing to allow for free movement. The change in displacement between the anchors and reference plate is accurately monitored with passage of time.

The initial reading is taken as the base. Subsequent readings are then compared with the initial reading to determine the magnitude of change in displacement across the opening.

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