GE AKTA pilot 600 - Page 50

The four options for unpacking are used to simplify unpacking of columns. Before using
an unpacking option, make sure to read each column instruction.
Column pressure monitoring
The pre- and post-column pressure sensors are located at the inlet and outlet of the
column valve.
The pressure drop between a sensor and a column is automatically compensated. This
affects pressures at higher flow rates (>600 mL/min).
There are four pressure signals, see the image and table below.
A
B
C D
PurposeRaw/compensatedSignalPart
Used to protect the column
hardware
Compensated signalPre-column pressureA
Used to protect the column
bed
Compensated signalDelta column pressureB
For referenceRaw signalPre-column sensor
pressure
C
Used to protect the pH
electrode and the UV cell
Raw signalPost-column sensor
pressure
D
50 ÄKTA pilot 600 User Manual 29274559 AA
3 Description of modules
3.8 Column valve