9 Monitoring the GC
9.1 [MONIT] key Main Screen
105
GC-2014
9.1.2 Parameter list
RETENTION TIME (Rt)
Retention time is the length of time from compound injectio to detection.
The retention time is specific to each compound. Compounds are identified based on match-
ing the retention time to a standard compound retention time.
REMAIN TIME
The longest program time subtracted by the current retention time is displayed.
LONGEST PROGRAM TIME
The longest program time indicates the total time of the longest program when comparing
the temperature program, the pressure program, the flow rate program and the time
program.
9.1.3 PF menu
PF menu Description
Reference
section
Temp Mon
Displays the current and set temperatures of column, injection port and
detector.
9.2
Flow Mon
Displays inlet pressure, total flow rate and purge flow rate for injection port,
and hydrogen flow rate, air flow rate and makeup gas flow rate for detector.
The display format depends on the typeof flow controller installed.
9.3
Zero Adj Automatically moves the baseline to zero point. 9.4
Zero Free Returns to the baseline level before zero point adjustment. 9.4
Up Moves the baseline up by 100 µV from current level. 9.4
Down Moves the baseline down by 100 µV from current level. 9.4
Chng Graph
Switches the graph display from chromatogram and column oven tempera-
ture program to chromatogram and pressure program. For direct injection
mode with flow control, the flow rate program is displayed instead of the
pressure program.
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Chng Line
Displays the monitor screen for another configured analytical line. Switch
between monitored lines by pressing [MONIT] key from the monitor screen.
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