The On State - Agilent Technologies InfinityLab LC Series User Manual

5
Using the Agilent 1260 Infinity II SFC Control Module
Operational Control States

The ON State

The ON state is characterized as follows:
✔
✔
✔
✔
✔
✔
The ON state can also be entered by selecting the On option in the control
window, by pressing the power button associated with the SFC icon of the
GUI, or by pressing On in the ChemStation graphical user interface.
When the Agilent 1260 Infinity II SFC Control Module is in the ON state, the
top status light is continuously lit. The bottom status light is lit when the
system reaches a "ready" state, indicating that back-pressure and booster
pump pressure are under control and stabilized within their control band.
Modules that start from the OFF state generally must first perform an
initialization routine before moving to ON. In the case of the Agilent 1260
Infinity II SFC Control Module, initialization causes the BPR first to home,
then move to a default initialization position. The booster pump delays
operation until the chiller passes below a threshold temperature value.
70
The CO supply valve is open (powered).
2
The booster pump drive is powered and begins to pump CO
target.
The BRP drive is powered and the BRP begins the process of regulating to
its setpoint.
The BRP heater is powered.
The chiller is powered.
The secondary cooling circuit pump is powered.
to the pressure
2