Standard Type (VW)

Description

The Model 4800 Earth Pressure Cells* are designed to measure total pressure in earth fills and embankments. All cells consist of two circular stainless steel plates welded together around their periphery and spaced apart by a narrow cavity filled with de-aired oil. Changing earth pressure squeezes the two plates together causing a corresponding increase of fluid pressure inside the cell. A vibrating wire pressure transducer converts this pressure into an electrical signal which is transmitted to the readout location.

Spesification

Standard Ranges¹            : 70, 170, 350, 700 kPa; 1, 2, 3, 5, 7.5, 20 MPa
Over Range                        : 1.5 × rated pressure
Resolution                          : 0.025% F.S.
Accuracy²                           : ±0.1% F.S.
Temperature Range¹       : −20°C to +80°C
Height × Diameter¹         : 6 × 230 mm
¹Other ranges and sizes available on request. ²Transducer accuracy established under laboratory conditions. Total system accuracy (pressure transducer + pressure cell) is subject to site-specific variables.