Waters GCT Premier Operator's Manual page 99

The external channel is read at the end of each scan and stored with the data
for that scan. The resolution of the chromatography for an analog channel
therefore depends on the analog samples.
Analog Data dialog box:
To store data for an analog channel:
1. In the MS Method Editor, click Options > Analog Data.
2. In the Analog Data dialog box, select one or more check boxes for the
channels required.
3. Type a description for each selected analog channel.
MassLynx adopts this description and displays it in the Analog
Tip:
Chromatogram dialog box as the channel description.
The MassLynx User's Guide.
See also:
4. Specify an offset value to align the external unit with the mass
spectrometer (for example, solvent delay, or time of the first function.)
This is the time delay, in minutes, from the start of acquisition, before
acquiring through the channel.
5. Click OK.
Setting up an MS Method 4-11