Yokogawa GC1000 Mark II Process Gas Chromatograph - Manual (Page 43)

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<Toc> <Ind> <4. Outline of Software >
IM 11B03A03-01E
• The first temperature gradient/first control temperature/first temperature time (only for the
GC1000D/GC1000T/GC1000W)
• The second temperature gradient/second control temperature/second temperature
time (only for the GC1000D/GC1000T/GC1000W)
• The third temperature gradient/third control temperature /third temperature time
(only for the GC1000D/GC1000T/GC1000W)
• Initial control pressure
Displayed when EPC is installed that uses a pressure program. The pressure at the
start of analysis should be specified.
• Initial pressure time
Displayed when EPC is installed that uses a pressure program. The time for holding
the initial control pressure should be specified.
• First pressure gradient/first control pressure/first control time (only when EPC is
installed)
• Second pressure gradient/second control pressure/second control time (only when
EPC is installed)
• Third pressure gradient/third control pressure/third control time (only when EPC is
installed)
In the GC1000D/GC1000T/GC1000W, three stages of temperature program can be speci-
fied. Figure 4.3 shows the operations for temperature programs.
Initial
temperature
time
Analysis cycle
Analysis end Analysis start
Time
Heater on
First
temperature
time
Second
temperature
time
Third
temperature
time
End of peak detection
time
Heater off
Third
temperature
gradient
Second
temperature
gradient
First
temperature
gradient
Temperature
Third control
temperature
Second control
temperature
First control
temperature
Initial control
temperature
F0403.EPS
Figure 4.3 Operation for Temperature Programs
3rd Edition : Aug. 23. 2006-00