ICS-90 Ion Chromatography System
3-8 Doc. 031851-05 12/04
background and zero the reading by clicking the Autozero button on
the Control panel (see Figure 3-2
).
NOTE If the ICS-90 pump is running but no data is
collected, the flow rate will remain constant
indefinitely. However, if the ICS-90 receives no
input from Chromeleon (you do not turn the pump
on or off, run a sequence, toggle the injection valve
position, etc.) for 6 hours after data is collected, the
module enters standby mode. In standby mode, the
pump flow is reduced to 1/20th of its normal rate. To
return to the normal flow rate, either begin a new
sequence or turn on the pump from the ICS-90
Control panel.
3.5.4 Manual Sample Processing
To manually process a sample, select operating parameters and
commands from the Chromeleon menu bar, toolbars, and Control panel.
Commands are executed as soon as they are entered.
Summary of manual sample processing
1. Complete the steps in Sections 3.5.1, 3.5.2, and 3.5.3 to start the
ICS-90, start Chromeleon, and prepare the ICS-90 for operation.
2. Inject the sample via a syringe, vacuum syringe, or autosampler (see
Section 3.5.6
).
3. Click the
Autozero button on the Control panel.
4. Select Acquisition On from the Control menu. Chromeleon records
the signal supplied by the detector and displays the signal plot on the
Control panel.
5. To stop acquisition, select Acquisition Off from the Control menu.
NOTE Data from manual processing is saved in the
MANUAL sequence folder under the local
datasource in Chromeleon. This data is overwritten
each time a new manual sample is processed. To
save the data from a manual run, select the
MANUAL folder, select Save As from the File menu,
and enter a new name for the sequence.
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