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Extensometers

Telltales | Model 1800

Model 1800 Telltale installation, as used for static load testing of a pile.
  • Model 1800 Telltale installation, as used for static load testing of a pile.
  • 1150-14 Groutable Anchor.
  • Model 1150-42 Telltale Clip.
  • Model 1400-1 Dial Indicator.
  • Model 1450 DC-DC LVDT.
  • This modified 1800 telltale configuration uses a customized 4450 VW displacement transducer, magnetically attached to the telltale clip, that may be adjusted in three dimensions. Included is the 1450-7, 1450-8, and 1150-42X modified with a mild steel reference surface for magnetic attachment, and a 4450-1X-100MM modified with a magnet on the base and moveable handle to aid in positioning. The magnet has a maximum 23 lb. (10.4 kg) pulling force to prevent unintentional release from the reference surface. (Enlarged at right to show detail.)
SKU:
Model 1800

Model 1800 Telltales are designed to measure the pattern of load transfer in piles, drilled shafts, and tieback anchors. They can also be used to garner information on pile tip movements and deflections along the pile. Telltales are commonly used in piles subjected to Static Load Tests, the results of which provide information used to confirm (or refine) the design of deep foundations. A major advantage of the Telltale system is the fact that the telltale rods can be inserted into the PVC or steel tubes after the pile has been driven or cast, thus reducing the likelihood of damage. This configuration also allows the telltale rods to be removed after testing is complete, such that they can be reused on subsequent tests.

Custom Extensometer Designs

GEOKON offers a variety of Custom Extensometer options and members of our experienced staff will help with the modifications necessary to meet your specific requirements. To learn more, please visit:


Please Note: GEOKON maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice. Various instruments are discontinued over time and replaced with new, updated models.

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