Yokogawa GC1000 Mark II Process Gas Chromatograph - Manual (Page 44)

<4. Outline of Software >
4-9
IM 11B03A03-01E
In the case that EPC is installed, three stages of pressure program can be specified.
Figure 4.4 shows the operations for EPC pressure programs.
Initial
control
time
Analysis cycle
Analysis end Analysis start
Time
First
control
time
Second
control
time
Third
control
time
End of peak detection
time
Third
pressure
gradient
Second
pressure
gradient
First
pressure
gradient
Pressure
Third control
pressure
Second control
pressure
First control
pressure
Initial control
pressure
F0404.EPS
Figure 4.4 Operation for EPC Pressure Programs
4.4 Description of Actions
Actions under the conditions below - stream sequence in Table 4.1, calibration in Table 4.2,
and validation in Table 4.3 - are described as examples.
Table 4.1
First stream
number
Second stream
number
Third stream
number
Fourth stream
number
Stream Sequnce 1 Stream 1 Stream 2 Stream 3 0
Stream Sequnce 2 Stream 4 0 Stream 5 Stream 6
T0401.EPS
Table 4.2
Calibration
stream number
Measuring
times
Validation
stream number
Calibration 1 Stream 7 2 Stream 8
T0402.EPS
Table 4.3
Validation
stream number
Measuring
times
Validation 1 Stream 9 2
T0403.EPS
3rd Edition : Aug. 23. 2006-00