KrosFlo® TFDF™ Lab System
User Guide
40
repligen.com IF.UG.023 R1
Alarms
Alarm Set-up screen
The Alarm Set-up screen displays all configurable alarms for the KrosFlo® TFDF™ Lab System. These
alarms are designed to help protect the system and users during operation. To access this screen,
select
Alarms
in the menu bar.
Figure 26. Alarm Set-up screen
The following system alarms are available:
1.
High Feed Pressure (PE-01): Monitors if the feed pressure into the filter has increased due to
obstruction in the fibers in the filter or the tubing going into the filter. Check for bent tubing.
2.
High Retentate Pressure (PE-02): Monitors if the retentate pressure on the tubing exiting the
filter is increased. Check for bent tubing or obstructions in the tubing lines back to the
recirculation vessel.
3.
High Permeate Pressure (PE-03): Monitors if the permeate pressure on the filtrate side is
high due to an obstruction or bent tubing.
4.
Low Permeate Pressure (PE-03): Indicates a fouled filter. Terminate the run if near
completion or reduce the flux to finish the run.
5.
High Pressure (PE-04) – Indicates a fouled secondary filter. Replace the filter
6.
High Pressure (PE-05) – Indicates a fouled secondary filter (for example, the sterile guard
filter). Replace the filter.
7.
High Feed Weight (WE-01): Used to make sure the recirculation vessel does not overfill.
8.
Low Feed Weight (WE-01): Used to make sure the recirculation vessel does not run dry.
9.
High Permeate Weight (WE-02) – Used to make sure the permeate vessel does not overfill.