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LC-23C COLUMN HEATING COMPARTMENT
Figure 7.
Column Preheater Coil Installed in LC-23C. This Unit is Part of a BAS 480 Liquid Chromatography System with the
Electrochemical Cell and Cell Preheater Options Installed.
Making Plumbing Connections
For simple arrangements, use the innermost trough of the LC-23C. This location minimizes
detector and valve hookup tubing. If you are coupling columns together, the longer trough
will be more useful.
A special coil of tubing is provided with each LC-23C (see Figure 7). At your option, it may
be installed between the injection valve and column. The coil functions as a mobile phase
preheater, so that large temperature gradients at the head of the column are minimized. The
coil may be removed by unscrewing the central cap screw (5/32" hex).
It is advisable not to use a permanent ferrule on the outlet end of the preheater coil. A
removable high-pressure fitting provides an equivalent seal without irreversible attachment.
Use BAS part no. MR-4409.
Leaks
Make sure that all fittings are leak-tight at the usual operating pressure before mounting the
insulating top cover.
Insulating Top Cover
The U-shaped top cover is insulated on three sides with a foam polymer. The cover is
asymmetric; the notch in the cover goes along the right side. Mount the cover at the rear
first and then drop the front in place.
Section 3. INSTALLATION
PREHEATER POWER
LOW
HIGH
7
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