Section 1. PREFACE
The Bioanalytical Systems LC-22C Temperature Controller and LC-23A and LC-23C
Column Heating Compartments are versatile tools for the experimenter who desires precise,
reproducible temperature control for liquid chromatography.
The LC-22C Dual Channel Temperature Controller is a general purpose instrument capable
of regulating two independent devices, such as heating mantles, heat tapes, electrochemical
cell preheaters, and column heating blocks. The temperature control point is set with a
multi-turn front-panel potentiometer and the power applied to the heating unit is regulated
by a temperature sensor located in the device being controlled. In heating devices of BAS
manufacture, the temperature sensor is built into the instrument. To control other devices, a
universal probe (part no. EW-8116) is available for separate purchase.
The LC-23A Column Heating Compartment is used in conjunction with the LC-22C. This
instrument is simple in design and extremely durable. It accepts most commercially
available 15, 25 or 30 cm analytical columns. A solid aluminum inner compartment,
thermally isolated from the outer cover, encloses the entire column. A preheater coil is
included with each unit. The LC-23A can, in some instances, be altered to accommodate
wider diameter columns. This alteration would involve an additional charge for
customization. If you require modifications, please contact BAS customer service for a
quotation.
The LC-23C Cartridge Column Heating Compartment accommodates two cartridge format
columns up to 15cm in length. The LC-23C can be mounted within the BAS CC-5
Chromatography Compartment, which is part of the BAS 480 Liquid Chromatographs and
LC-44 Electrochemical Detectors. The LC-23C is also sold with or without the CC-5, the
latter as an upgrade to existing BAS detectors or BAS 480 systems.
The Cell Preheater option for BAS electrochemical detectors is also controlled by an
LC-22C. The preheater coil can accommodate the heating of stainless steel tubing between
the column and cell inlet.
Figure 1.
LC-22C Front Panel.
SETPOINT
HEATER 1
SETPOINT
HEATER 2
DISPLAY
SELECT
Temperature Controller
LC-22C
Section 1. PREFACE
1
