The 6890 Series Gas Chromatograph
Using control tables
4
Using control tables
The general procedure for setting up the instrument is:
1. Press a key to call up a control table. It appears in the display. The first line
is a title that identifies the table.
2. Inspect the setpoints in the table (you may have to scroll up or down if it is
a long table).
3. Edit selected setpoints in the table.
4. Repeat this process with other tables until you have what you want.
5. Analyze the sample.
The advantage of a table is that it contains groups of related setpoints. You can
inspect them and alter them easily and quickly without having to execute key
sequences for each.
For example, to set up the front inlet, press [Front Inlet]
The control table for the type of inlet in the front position appears in the display.
Control tables for three inlet types, all with Electronic Pneumatic Control (EPC),
are on the next page.
Oven
Front
Inlet
Back
Inlet
Col 1
Col 2
Front
Det
Back
Det
Signal 1
Signal 2
Col
Comp 1
Col
Comp 2
Ramp #
Det
Control
FlowPres
Aux #
Temp
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