Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 474)

App.E-1
IM 11B08A01-01E
Appendix E Computation Scheme
This chapter describes how concentrations and computations are derived based on
signals from the detectors so that you can understand the computation functions of the
GC8000.
 General
The computation function of the GC8000 is composed of the processes shown in the fi gure
below.
Process mode Manual modes
Detector
signal
processing
Peak
detection
processing
Peak
waveform
processing
Concentration
computation
processing
Deviation
component
computation
Upper and
lower limit
checking
processing
Additional
computation
processing
Signal lebel
processing
Computed value Concentration
Alarm output
Concentration Level value
Detector
signal
processing
Peak
detection
processing
Peak
waveform
processing
Concentration
computation
processing
Concentration
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2nd Edition : May 11, 2012-00
App.E