42
Device Methods
Advanced User Guide
Release Date: March 2012
Analyst
®
1.6.1 Software
25 of 94
3. Save the file.
Set the Switching Valve Properties
The switching valve can be used as a diverter or injection valve. Select the Manual Sync with
Valve synchronization mode if using the valve as an injector; choose any other mode if using the
valve as a diverter.
1. With a method file open in the Acquisition Method Editor, in the Acquisition method
pane, click the Valve icon.
The Valve Properties tab opens in the Acquisition Method Editor pane.
2. Change the position names from their preset names, if required.
The switching valve is sometimes used to switch the flow of solvent to waste, or to a
different column. The preset position names are A and B.
• In the Change Position Names list, select a position.
• In the Change Position Names list, rename the preset position names A and
B to Inject and Divert or to Column and Waste, depending on how the valve is
plumbed.
3. In the Total Time (min) column, click a cell, and then type the total time the valve will
remain in this position.
4. In the Position column, click a cell and then, in the Position list, select the valve
position.
5. Repeat the steps 3 and 4 for each switch of the valve required during acquisition.
6. Save the file.
Set the Diode Array Detector Parameters
1. With a method file open in the Acquisition Method Editor, in the Acquisition method
pane, click the Diode Array Detector (DAD) icon.
The DAD Method Editor tab opens in the Acquisition Method Editor pane.
2. Set the desired acquisition parameters and save the file.
Set the Analog-to-Digital Converter Properties
1. With a method file open in the Acquisition Method Editor, in the Acquisition method
pane, click the Analog to Digital Converter (ADC) icon.
The Analog/Digital Convertor Properties tab opens in the Acquisition Method Editor
pane.
2. In the Sample section, in the Rate (pts/sec) field, type the rate.
3. Do the following to set the channel details:
Note: The interval and rate are proportional to each other. When the rate
is changed, the software automatically calculates the interval again.