How to directly control LC gradient pumps during run
To control the configured LC pumps directly from Clarity, the Device Monitor contains the LC Monitor ⓐ section common to up to four pumps (i.e., a maximum of four solvents). Any combination of isocratic and gradient pumps can be used. If more than four pumps are needed, any additional pump has to be added as an auxiliary pump.
Note:
The tooltip over each component shows the name of the pump ⓑ.
- In the LC Monitor section of the Device Monitor, it is possible to:
- Stop Flow (the pump is stopped without stopping analysis) and Set Flow (a custom flow rate and composition can be set). Both of these buttons can be used outside or during analysis. Beware that when used during analysis, the gradient from the method cannot be restored and the set flow will be used for the rest of acquisition.
- Resume Idle switches the pump to the idle state as defined in Method Setup - LC Gradient tab.
- Further commands are available for selected pumps (typically those controlled by Clarity in real time). They are enabled only during runs with a gradient program.
- Hold halts the gradient at its current state. The button changes to Resume which can be used to resume the gradient from the point where it was halted.
- Modify Gradient invokes the LC Control Manual Flow dialog (similar to the Method Setup - LC Gradient) which can be used to adjust the gradient for the current analysis. This does not influence the method used for analysis in any way.