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1. Status LEDs – The POWER LED lights when power is
applied to the system. The READY LED illuminates after
the Companion XL completes its startup routine and is
ready for operation.
2. Disconnect Device (Power Switch) – Located on side of
unit. 1 = ON, 0 = OFF
3. Solid Sample Cartridge Retainer – Supports a solid
sample cartridge when installed. This spring-loaded
retainer raises so that the cartridge can be inserted, then
lowers to apply downward force on the Solid Sample
Cartridge Cap, holding it in place. The system monitors the
position of the retainer to determine if a cartridge is
installed.
4. Solid Sample Cartridge Cap – Connects to top of solid
sample cartridge. Three sizes are available to match the
size of cartridge. The system ships with the 25 and 70g
caps. The optional 300g cap and cartridges may be ordered
as accessories.
5. Solid Sample Cartridge – Holds solid samples. Three
sizes are available to match the size of cap (item 4).
6. Sample Injection port – Liquid samples are injected into
this port, typically with a syringe. Solid sample cartridges
connect to this port. When this port is included in the fluid
path under software control, the sample is routed to the
column.
7. Upper Column Mount – Secures top of RediSep column
and directs solvent into the column. The mount adjusts to
height of column. The position of this mount is read by the
Companion XL to determine the column size. There are
two sizes of fittings. The 120 and 330g columns use the
smaller fitting; 750 and 1500g columns use the larger
fitting.
8. RediSep Column – A 330g RediSep normal phase flash
chromatography column is shown. Different column sizes
and media are available for use on the Companion XL.
9. Lower Column Mount – Secures bottom of column.
Fluids from the column outlet flow through this port to the
internal optical detector. There are two sizes of holes. The
120 and 330g columns use the smaller hole; 750 and 1500g
columns use the larger hole.
Section 1 Introduction
1-7
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