A Cone Penetrometer is used to determine the moisture content at which clay soils pass from a plastic to a liquid state, and used also for the determination of undrained shear strength.
The TS-0180 Semi-Automatic Penetrometer for Liquid Limit consists of a cast iron base with course and fine leveling screws, a digital penetration measurement gauge 0.01 mm precision and an automatic penetration timer unit.
The TS-0180 is equipped with a digital, 99 second timer, which can be set to the standard 5 second free-fall time or to some other setting for customized tests. When engaged the timer will allow the needle to free fall into the sample for the specific time interval and then lock the needle from advancing while providing a direct reading of the test results.
320 g weight should be added to the 30° angle cone to get a total weight of 400 g for the shear strength test.