Technical data

34 Agilent 1290 Infinity LC System Manual and Quick Reference
2 The Agilent 1290 Infinity LC System - Product Description
System Components
The Agilent 1290 Infinity Thermostatted Column Compartment
The Agilent 1290 Infinity Thermostatted Column Compartment (TCC) controls
the temperature between 10 °C below ambient and up to 100 °C at 2.5 ml/min
and 80 °C at up to 5 ml/min, respectively. The temperature stability
specification is ± 0.05 °C and the accuracy specification ±0.5 °C (with
calibration)
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. This is achieved by a combination of conduction from contact
with the thermostat vanes, still-air temperature in the column environment
and most importantly by pre-heating (or cooling) the mobile phase by passing
it through a heat exchanger before entering the column. There are two
independent temperature zones in each TCC which can work together for long
columns up to 300 mm length or work at different temperatures for short
columns of 100 mm length or less.
The module comes with a 1.6 µl low dispersion heat exchanger and each valve
kit contains additional low dispersion heat exchangers for each column. The
low dispersion heat exchangers, up to 4, can be mounted flexibly inside the
TCC. For conventional HPLC operation, 3 µl and 6 µl built-in heat exchangers
are also available.
Each TCC can accommodate one internal valve drive to facilitate valve
switching applications from simple switching between two columns to
automatic column regeneration, sample preparation or column back-flushing.
Each valve head comes as a complete kit containing all required capillaries,
additional low dispersion heat exchangers and other parts.
The switching valves have exceptional ease-of-use and flexibility when making
connections to the valve: When pressed, the drive unit of the Quick Change
Valve slides forward for easy access (see Figure 19 on page 35 left). Alternative
valve heads can be interchanged by the user on the drive mechanism for
different applications (see Figure 19 on page 35 right). Note the RFID tag on
top of valve head.
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All specifications are valid for distilled water at ambient temperature of 25 °C, setpoint at 40 °C
and a flow range from 0.2 to 5 ml/min.