Pressure cells
The pressure cells in the ÄKTA ready flow kits are
designed with a flexible membrane that is brought
into contact with a transducer (load cell) on the
system cabinet for measurement of fluid pressure.
There are three pressure cells, continuously mea-
suring the pressure of the liquid:
FunctionLocationPressure cell
Measures the total pressure
over the entire flow path.
The first pressure cell is located
in the high pressure flow path,
directly downstream from the
system pump.
PT-111
Measures the total pressure in
the flow path after the column.
The difference between pres-
sures at PT-111 and PT-112 is
the pressure drop (Delta p) over
the column and the packed bed.
The second is located in the
medium pressure flow path,
downstream from the column.
PT-112
Pressure sensor PT-113 protects
the low pressure outlet manifold
from overpressure, caused by
failure in the fluid lines outside
the system (e.g., pinched outlet
tubing or overfilled bag at out-
let).
The third is located in the low
pressure flow path, upstream
from the outlet manifold.
PT-113
ÄKTA ready Operating Instructions 28960345 AD 49
3 System description
3.4 Equipment
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