Bio-Rad ChromLab™ Software - Manual (Page 56)

2 | The NGC Instrument
54 | NGC Chromatography Systems and ChromLab Software
How the Outlet Valve Works
The NGC system supports the use of up to two daisy-chained outlet valves. This
configuration is ideal for collecting large-volume fractions.
The inlet port on the first outlet valve (O1) connects to the outlet port of either the
conductivity monitor or the pH detector. Port 1 on O1 connects to the diverter valve
on the fraction collector or directs the flow to waste. When two outlet valves are
present, port 12 on O1 connects to the inlet port of the second outlet valve (O2).
When one outlet valve is present, it can collect up to 11 fractions. When two outlet
valves are present, they can collect up to 22 fractions: O1 can collect up to 10
fractions; O2 can collect up to 12 fractions.
Tip: To clean the outlet valve, immerse the outlet lines in a waste container
and the inlet line in cleaning solution. Perform the system wash step in
ChromLab as explained in the section System CIP (Clean in Place) — Storage
Parameters in the NGC Chromatography Systems and ChromLab Software
User Guide.