Bio-rad ChromLab™ Software Instrukcja Użytkownika Strona 253

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System and Sample Pumps
Instrument Guide | 251
Backpressure values
are higher or lower than
expected.
The flow rate might have changed. In ChromLab, verify that the
pump is set to deliver the
correct flow rate.
Note: Recalibrate after
stopping the pumps. In
ChromLab, select Tools >
Calibrate > Pump Flow
Rate. Complete the
calibration steps in the
dialog box.
The column might need to be
cleaned, or a frit might need to be
replaced.
Remove the column and run
the pumps to determine if the
high backpressure is due to
the column.
Consult the column’s user
manual for the cleaning
procedure.
Note: Recalibrate after
stopping the pumps. In
ChromLab, select Tools >
Calibrate > Pump Flow
Rate. Complete the
calibration steps in the
dialog box.
The pressure transducer
calibration might be incorrect.
Inspect the tubing path for
obstructions.
Change the tubing in the
tubing path if necessary.
Note: Recalibrate after
stopping the pumps. In
ChromLab, select Tools >
Calibrate > Pump Flow
Rate. Complete the
calibration steps in the
dialog box.
Symptom Possible Cause Possible Solution
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