Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 435)

<Appendix B Terminology>
App.B-2
IM 11B08A01-01E
Term Description Icon/abbr.
SYS SYS is the minimum analysis unit. Multiple SYSs can
be set in each GCM. SYSs in the same GCM are
synchronized for analysis, while those in different GCMs
are not synchronized.
Up to two SYSs can be set in an isothermal oven.
Up to two for one isothermal oven
Up to four for two isothermal ovens
Up to six for three isothermal ovens
Valves (Valve, RV, or LSV), detectors, and EPCs are set
for each SYS. Their respective operations are set in the
SYS method. Although atmospheric-pressure balancing
valves (AtmV) belong to GCM, their operations are also
set in the SYS method. The operations of timing signals
are set by using DO in this method as well.
(SYS analysis cycle) = (GCM analysis cycle) / n
(n: 1-8)
GCM Method Any of methods No. 1 to No. 6 can be set for each GCM.
In the Manual status or Process–Stop status, the method
number will be blank.
Main Cycle Time from start (0 second) to stop of analysis
Warming Up Time Time for displacement in sample streams
Stream
Valve
ON/OFF Time
ON/OFF time of sample stream valves
Pause Time Time for measurement pause
SYS Method
Analysis Cycle Time from start (0 second) to stop of analysis
Peak Detection
Stop Time
Time to forcibly stop peak detection of chromatogram
Tracking
Specifi cation
Automatic
Renewal of
Tracking Factors
Valve ON/OFF
Time
Valve
Atmospheric-
Pressure
Balancing Valve
ON/OFF Time
AtmV
DO Operation
Setting
The operation setting of timing signals by using DO
EPC Program
Setting
Purging Displacement of the gas in the pressurized enclosures
with a protection gas (instrumentation air)
Custom Software
Capability
With the programming in YM-BASIC (Yokogawa’s original
programming language based on BASIC), calculation
formulas for analysis results and various measurement
statuses such as stream switching can be changed. This
function also allows special calculations using the data of
analog inputs from other analyzers and/or contact inputs.
Gate Tracking
Function
The automatic peak tracking function of GC1000 Mark
II was improved. The setting of tracking (correction)
conditions of the gate time setting to detect peaks has
become fl exible, from simultaneously setting all GCs to
setting each SYS or each detector.
This enables precise measurement even in
multicomponent analysis such as PIONA.
2nd Edition : May 11, 2012-00