Model 4820 Earth Pressure "Jackout" Cell; Model 4830 Push-In Pressure Cell; Figure 8: Model 4820 Jackout Load Cell; Figure 9: Model 4830 Push-In Pressure Cell - Geokon 4800 Series Instruction Manual

1.3.4 MODEL 4820 EARTH PRESSURE "JACKOUT" CELL

Model 4820 Earth Pressure Cells are designed specifically for the measurement
of soil pressures on the back side of slurry walls. The pressure transducer
housing is connected directly and perpendicular to the thick back plate.
Mounting Hole
(6 places, 6.75 mm ID)
6"
150 mm
Bottom View
FIGURE 8: Model 4820 Jackout Pressure Cell

1.3.5 MODEL 4830 PUSH-IN PRESSURE CELL

Model 4830 Push-In Pressure Cells are designed to be pushed in place for the
measurement of total pressures in soils and earth fills. The semiconductor
pressure transducer enables measurement of dynamic pressures. A thread is
provided on the end of the cell to allow for installation using lengths of pipe or
drill rods.

FIGURE 9: Model 4830 Push-In Pressure Cell

MODEL 4800 SERIES VW EARTH PRESSURE CELLS | INTRODUCTION | 5
Pressure Cell
Back Plate (with mounting holes)
Transducer Housing
5"
125 mm
Side View
8:
Instrument Cable
(4 conductor, 22 AWG)
9: