Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 436)

App.B-3
IM 11B08A01-01E
 Instrument Terminology
Term Description Notes
ASET Analyzer server engineering terminal software
PC software which operates and displays analyzers
ASGW Analyzer server gateway software
Exchanges data with the upper system by using the STARDOM
FCJ.
ASIU Analyzer server interface unit software
Serves as an interface with the network for analog output signals of
fi eld devices except for process gas chromatographs or input/output
of contact signals.
DCS Distributed control system
The upper system of analyzers
EPC Electronic pressure control
EtherLCD A function which consolidates the settings for display of I/O
and Ethernet connection status of analyzers under connection;
operation of I/O, user program, and detectors; and parameters of
hardware confi guration, analysis method, and I/O, which are mainly
used for maintenance among the general settings from the GC-HMI.
This is equivalent to the functions of EtherLCD (display and
operation), which is the human-machine interface of the GC1000
Mark II, excluding operation and display of analysis data.
User-level settings for EtherLCD are independent of other screens
of the GC-HMI (analyzer overview, etc.), and so they must be set
separately.
FID Flame ionization detector
FPD Flame photometric detector
GC-HMI GC human-machine interface
Displays the status of the GC8000 analyzer, operates it, changes its
settings, and displays analysis data.
12.1-inch color LCD touch panel on the GC8000
GCSMP
LSV
Liquid sampling valve
MC Methane converter (methanizer)
PCAS PC analyzer server software
PC software which manages the network and automatically saves
data
RV Rotary valve
TCD Thermal conductivity detector
Temperature
Protection Circuit
A circuit for turning off the heater to prevent overheating
Column Switching
Valve
A valve for switching columns
It uses RV.
Carrier Gas Gas for carrying sample gas of the measurement target from the
sample valve to columns and detectors. H
2
, He, Ar, and N
2
are used
as the carrier gas.
Sample Valve A valve for taking in sample gas.
It uses RV (for gas/liquid) or LSV (for liquid).
Illuminance The intensity of incident light on a plane surface, based on human
perception of brightness
Illuminance of 1 lux is a fl ux of light of 1 lumen (lm) on a plane
surface of 1 m
2
. Unit: lx
Hydrogen Limiting
Unit
Consists of an air operation valve and a fl ow controller.
It limits the fl ow of hydrogen (300 ml/min for each oven) or shuts
it off. To meet explosion-proof requirements, a regulator must be
installed and provide hydrogen at 500 kPa to the GC8000.
Splitter A fl ow splitter
2nd Edition : May 11, 2012-00
App.B