What's New Page 3

Submersible Jointmeter Sensor

This robust displacement sensor is used to monitor movement at joints in concrete structures. The two swivel-equipped ends of the sensor are fixed to user-supplied mounting brackets on opposite sides of the joint. Opening or closing of the joint causes the shaft to extend or contract. A potentiometer inside the body of the sensor outputs a signal that is proportional to the movement of the shaft. The sensor is designed to withstand long-term submersion at pressures to 3 Mpa. More Information

Transient Protection Module

Problems with sensors and noisy readings are more likely to be caused by voltage transients (such as lighting) than by poor quality or poor installation techniques. Transient protection modules , when combined with other measures, can help prevent these problems.

Visit our web page for transient protection modules.

Terminal Boxes

These weatherproof terminal boxes provide access to 12 or 24 sensors. All wiring is done from the front of the box using spring-loaded terminals. More information

Paper: Advances in Inclinometer Data Reduction

Download Erik Mikkelsen's paper on inclinometer data analysis which was presented at the 2004 FMGM conference in Norway: Advances in Inclinometer Data Analysis

Paper: Grout Backfill for Borehole Instruments

Download Erik Mikkelsen's informative paper on cement-bentonite grout , reproduced courtesy of Geotechnical News. Grout Backfill for Borehole Instruments (PDF)

Paper: Piezometers in Fully Grouted Boreholes

Download a paper from Erik Mikkelsen and Gordon Green presented at the 2003 FMGM
Piezometers in Fully Grouted Boreholes (PDF)

Paper: The Use of the Fully-grouted Method for Piezometer Installation

Download this Paper by Ivan Contreras, Aaron Grosser, and Richard Ver Strate of Barr Engineering. Published in Geotechnical News, June 2008.

Distributor for Quebec

We welcome Geneq Inc as Slope Indicator’s distributor for Quebec. Geneq has over 30 years experience in the supply of instrumentation. To discuss your requirements, please contact Petru Dan at 514-354-2511 (ext 214) or Norman MacDonald at 514-354-2511.

Other DGSI Catalogs

Download the DGSI catalogs for materials testing equipment and environmental sampling and remediation pumps. These links take you to the Durham Geo web site.

Materials Testing Products Catalog (PDF)

Environmental Pumps Catalog (PDF)

ISO 9001:2000 Certification Renewed

Durham Geo Slope Indicator ISO 9001:2000 certification for its manufacturing facilities in Washington and Georgia had been renewed. The scope of certification includes the design, manufacture, distribution, calibration, and repair of geotechnical equipment for the construction, geotechnical and geo-environmental markets.

Applications Guide Converted to PDF