Model 4810 Contact ("Fat Back") Pressure Cell; Model 4815 Hydraulic Load Cell; Figure 6 - Model 4810 Contact; Figure 7 - Model 4815 Hydraulic - Geokon 4820 Instruction Manual

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1.3.2 Model 4810 Contact ("Fat Back") Pressure Cell

Model 4810 Earth Pressure Cells are designed for measuring soil pressures on structures.
One of the plates is thick and designed to bear against the external surface of the structure
in a way that will prevent flexure of the cell. The other plate is thin and reacts to the soil
pressure.

Pressure Cell

Transducer Housing Instrument Cable
(4 conductor, 22 AWG)
9"
230 mm
Mounting Lugs (4 places)
Top View
Thin Pressure Sensitive Plate
Side View
Figure 6 - Model 4810 Contact Pressure Cell

1.3.3 Model 4815 Hydraulic Load Cell

Model 4815 Hydraulic Load Cell has been used for the measurement of loads in piles and
of concentrated loads on tunnel linings. The pressure transducer housing is connected
directly and perpendicular to the thick back plate.
Figure 7 - Model 4815 Hydraulic Load Cell