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Earth Pressure Cell

Model EPS-30V-S Overview

The EPS-30V-S earth pressure cell is used to measure total pressure in the earth fills and embankments. Two stainless steel discs welded around the periphery forms a flexible, circular and flat pressure pad. The pressure pad is connected to an electron beam welded vibrating wire pressure sensor with a 6 mm diameter x 165 mm long stainless tube. The narrow cavity between the pressure pad and the tube is filled with de-aired fluid. Pressure applied by the earth on the capsule is transmitted through the fluid to the vibrating wire pressure sensor, which converts it into an electrical signal.

Specifications

Range (MPa)0.5, 1.0, 2.0, 3.5, 5.0,10.0, specify
Accuracy± 0.5 % fs standard | ± 0.1 % fs optional
Over range limit150 % fs of range
Temperature limit-20° to 80°C
ThermistorYSI 44005 or equivalent
Pressure pad size200 mm Φ x 7 mm thick