How to Submit a Shutdown Method in OpenLab 2.x

Created by Linh Dinh 14 days ago | Last modified by Carlos Vargas 13 days ago

This Information Applies To: Agilent OpenLab CDS 2.x controlling Agilent LC Systems

Issue

This article outlines an instruction on how to submit a shutdown method on OpenLab CDS 2.3 or above.

Background

Submit a shutdown run to the run queue that will shut down Agilent LC instrument after all other runs in the run queue are complete.

Steps to Follow

Create an acquisition method (.amx file) to use it as a shutdown method. (See Figure 1)
See Table 1 for suggested instrument parameters for the LC instrument shutdown method.

Figure 1: Create a shutdown amx file

Note: The following recommendations are just a general guideline. Method conditions may be different according to the application, installed column, and instrument configuration.

Table 1: Instrument Parameters for LC shutdown

Pump	Flow: 0 mL/min, or a low flow compatible with your application Stoptime: 1 min
Column Oven	Temperature left: Ambient Temperature right: combined Stoptime: As Pump/ Injector
DAD/ MWD/ VWD	In the Advanced section, go to the Lamps on required for acquisition, and clear the UV lamp check box Stoptime: As Pump/ Injector
FLD	Signal: clear the Acquire Signal check box In the Special setpoints section, go to Lamp and clear Lamp on required for analysis check box Stoptime: As Pump/ Injector
RID	Optical Unit Temperature: Not controlled, or the same temperature as the analytical method to allow rapid system equilibration for next run Signal: Clear the Acquire Signal check box Stoptime: As Pump/ Injector
ELSD	Stoptime: As Pump/ Injector Switch off: deselect Switch off at the end of the run; deselect Switch off on program exit For G4260B, G4261B, G7102A: Output Signal: deselect Acquire Signal

Tips: If buffer is used in the mobile phase, flush the system with a solvent containing water instead of buffer, according with your method and column compatibility.

Click Browse to select the shutdown acquisition method (Figure 2).
The shutdown method can only be submitted in the Run Queue.

Figure 2. Browsing a Shutdown Method
Select the acquisition method and click Open. (See Figure 3)
If the method is obsoleted, then the shutdown run cannot be submitted.

Figure 3: Open a Shutdown Method
Click Submit Shutdown Run. (See Figure 4)

Figure 4: Submit Shutdown Run
The shutdown run is added to the end of the run queue and is highlighted in yellow. You cannot submit another shutdown run until the submitted shutdown run is complete. (See Figure 5)

Figure 5: Shutdown Method in Pending

Confirmation: Once the shutdown run begins, the shutdown process is recorded in the Activity Log. (See Figure 6)