Bio-Rad BioFrac™ Fraction Collector - Manual (Page 90)

7 | Maintenance and Troubleshooting
82 | BioFrac Fraction Collector
Fraction collector
causes a high
backpressure Tubing is kinked.
Wrong tubing is being
used.
Divert valve or tubing is
plugged.
Replace tubing.
Connect the appropriate size tubing for the
flow rate being used (see
Chapter 3,
System Configuration and Plumbing , on
page 13 ). Rinse the diverter valve with
water to remove salt crystals or other
particulate matter.
Fraction collector will
not go to system mode
when connected to a
BioLogic DuoFlow
™
chromatography system
BioFrac system is not
in Main screen.
BioFrac system is not
in Local mode. Bus
cable is not
connected. Place the fraction collector in Local mode
and make sure the Main screen (start-up
screen) is displayed.
Table 21. Issues, causes, and solutions, continued.
Issue Possible Cause Solution